[mpich-commits] [mpich] MPICH primary repository branch, master, updated. v3.1rc2-189-g3457b35

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http://git.mpich.org/mpich.git/commitdiff/3457b353765078d5a37be8b043811fc7e547bcd6

commit 3457b353765078d5a37be8b043811fc7e547bcd6
Author: Ken Raffenetti <raffenet at mcs.anl.gov>
Date:   Mon Jan 27 14:00:42 2014 -0600

    add manual test for process affinity
    
    Add a number of synthetic topologies and reference binding bitmaps to
    the implementation specific tests directory. Running the proc_binding.sh
    script will show any errors in hydra's binding logic.
    
    Signed-off-by: Pavan Balaji <balaji at mcs.anl.gov>

diff --git a/test/mpi/.gitignore b/test/mpi/.gitignore
index 4a81675..64552b0 100644
--- a/test/mpi/.gitignore
+++ b/test/mpi/.gitignore
@@ -1004,5 +1004,7 @@
 /topo/graphcr
 /topo/graphcr2
 /topo/neighb_coll
+/impls/hydra/dummy
+/impls/hydra/proc_binding.sh
 /impls/mpich/testlist
 /impls/testlist
diff --git a/test/mpi/configure.ac b/test/mpi/configure.ac
index abb2c28..ea519d1 100644
--- a/test/mpi/configure.ac
+++ b/test/mpi/configure.ac
@@ -1443,6 +1443,7 @@ fi
 AC_OUTPUT_COMMANDS([chmod a+x maint/testmerge])
 AC_OUTPUT_COMMANDS([chmod a+x runtests checktests])
 AC_OUTPUT_COMMANDS([chmod a+x manual/manyconnect])
+AC_OUTPUT_COMMANDS([chmod a+x impls/hydra/proc_binding.sh])
 dnl Note that this format for AC_OUTPUT can cause problems for autoconf
 dnl run under cygwin
 AC_OUTPUT(maint/testmerge \
@@ -1575,6 +1576,8 @@ AC_OUTPUT(maint/testmerge \
           errors/f90/testlist \
           impls/testlist \
           impls/Makefile \
+	  impls/hydra/Makefile \
+	  impls/hydra/proc_binding.sh \
           impls/mpich/Makefile \
           impls/mpich/testlist \
           impls/mpich/mpi_t/Makefile \
diff --git a/test/mpi/impls/Makefile.am b/test/mpi/impls/Makefile.am
index fbe2c38..f74f9fc 100644
--- a/test/mpi/impls/Makefile.am
+++ b/test/mpi/impls/Makefile.am
@@ -11,4 +11,4 @@ EXTRA_DIST = testlist.in
 
 static_subdirs =
 SUBDIRS      = $(static_subdirs) $(impldir)
-DIST_SUBDIRS = $(static_subdirs) mpich
+DIST_SUBDIRS = $(static_subdirs) mpich hydra
diff --git a/test/mpi/impls/hydra/Makefile.am b/test/mpi/impls/hydra/Makefile.am
new file mode 100644
index 0000000..6d3ff4d
--- /dev/null
+++ b/test/mpi/impls/hydra/Makefile.am
@@ -0,0 +1,13 @@
+# -*- Mode: Makefile; -*-
+# vim: set ft=automake :
+#
+# (C) 2011 by Argonne National Laboratory.
+#     See COPYRIGHT in top-level directory.
+#
+
+testing: dummy
+	$(builddir)/proc_binding.sh
+
+noinst_PROGRAMS = dummy
+
+CLEANFILES = actual.*
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.board.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.board.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.board.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.core.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.core:2.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.core:4.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread.out
new file mode 100644
index 0000000..f235420
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 1 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 1 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 1 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 1 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 1 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 1 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread:2.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread:4.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread:8.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.numa.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.socket.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.board.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.core.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.core:2.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.core:4.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread.out
new file mode 100644
index 0000000..4f28c56
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 1 1 1 1 0 0 
+process 4 binding: 0 0 0 0 1 1 1 1 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 1 1 1 1 0 0 0 0 
+process 10 binding: 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 1 1 1 1 0 0 
+process 12 binding: 0 0 0 0 1 1 1 1 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread:2.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread:4.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread:8.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.numa.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.socket.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:2.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.core:4.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.board.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
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+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.core.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 4 binding: 0 1 0 0 0 0 0 0 
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+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.core:2.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.core:4.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread:2.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
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+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread:4.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 3 binding: 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 
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+process 13 binding: 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread:8.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.numa.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 4 binding: 0 0 0 0 1 0 0 0 
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+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.socket.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.board.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
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+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.core.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
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+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.core:2.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
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+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.core:4.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
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+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread.out
new file mode 100644
index 0000000..dca323c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread.out
@@ -0,0 +1,16 @@
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+process 15 binding: 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread:2.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread:2.out
@@ -0,0 +1,16 @@
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+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread:4.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread:4.out
@@ -0,0 +1,16 @@
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+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread:8.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.hwthread:8.out
@@ -0,0 +1,16 @@
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diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.numa.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.numa.out
@@ -0,0 +1,16 @@
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diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.socket.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:2.socket.out
@@ -0,0 +1,16 @@
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diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.board.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.board.out
@@ -0,0 +1,16 @@
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diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.core.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.core.out
@@ -0,0 +1,16 @@
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+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.core:2.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.core:4.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread.out
new file mode 100644
index 0000000..bbf9f7f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 0 1 1 1 1 0 
+process 4 binding: 0 0 0 0 1 1 1 1 
+process 5 binding: 1 0 0 0 0 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 1 0 0 0 0 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 1 1 1 1 0 0 0 
+process 10 binding: 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 0 1 1 1 1 0 
+process 12 binding: 0 0 0 0 1 1 1 1 
+process 13 binding: 1 0 0 0 0 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread:2.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread:4.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread:8.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.numa.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.socket.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:4.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.hwthread:8.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.numa.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo1.socket.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.board.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.core.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.core:2.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.core:4.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread:2.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread:4.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread:8.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.numa.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.board.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.socket.out
new file mode 100644
index 0000000..6a170f2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.board.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.board.out
new file mode 100644
index 0000000..4fcd88e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.core.out
new file mode 100644
index 0000000..4fcd88e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.core:2.out
new file mode 100644
index 0000000..15bd9ef
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.core:4.out
new file mode 100644
index 0000000..349c36c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread.out
new file mode 100644
index 0000000..9d46f9e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 8 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 13 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread:2.out
new file mode 100644
index 0000000..4fcd88e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread:4.out
new file mode 100644
index 0000000..15bd9ef
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread:8.out
new file mode 100644
index 0000000..349c36c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.numa.out
new file mode 100644
index 0000000..349c36c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.socket.out
new file mode 100644
index 0000000..349c36c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.board.out
new file mode 100644
index 0000000..0feba67
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.core.out
new file mode 100644
index 0000000..1897bb9
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 6 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 7 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 14 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 15 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.core:2.out
new file mode 100644
index 0000000..0feba67
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.core:4.out
new file mode 100644
index 0000000..4bb862b
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread.out
new file mode 100644
index 0000000..cf8fb69
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 2 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 3 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 4 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 7 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 8 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 11 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 12 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 13 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 14 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
+process 15 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread:2.out
new file mode 100644
index 0000000..1897bb9
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 6 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 7 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 14 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 15 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread:4.out
new file mode 100644
index 0000000..0feba67
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread:8.out
new file mode 100644
index 0000000..4bb862b
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.numa.out
new file mode 100644
index 0000000..4bb862b
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.socket.out
new file mode 100644
index 0000000..4bb862b
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:2.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.board.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.core.out
new file mode 100644
index 0000000..b4a0141
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 4 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 5 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 10 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.core:2.out
new file mode 100644
index 0000000..e9efd88
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.core:4.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread.out
new file mode 100644
index 0000000..7b2c5aa
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 3 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 4 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 7 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 8 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 11 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 12 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 13 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 14 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
+process 15 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread:2.out
new file mode 100644
index 0000000..b4a0141
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 4 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 5 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 10 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread:4.out
new file mode 100644
index 0000000..e9efd88
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread:8.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.numa.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.socket.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.core:4.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.board.out
new file mode 100644
index 0000000..ed56af8
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 8 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.core.out
new file mode 100644
index 0000000..69996c1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 8 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.core:2.out
new file mode 100644
index 0000000..32e9bd0
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 4 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 6 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 8 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 10 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 12 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.core:4.out
new file mode 100644
index 0000000..7d2e6e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 2 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 4 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 6 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 8 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 10 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 12 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 14 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread.out
new file mode 100644
index 0000000..ed56af8
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 8 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread:2.out
new file mode 100644
index 0000000..69996c1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 8 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread:4.out
new file mode 100644
index 0000000..32e9bd0
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 4 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 6 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 8 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 10 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 12 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread:8.out
new file mode 100644
index 0000000..7d2e6e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 2 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 4 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 6 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 8 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 10 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 12 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 14 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.numa.out
new file mode 100644
index 0000000..7d2e6e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 2 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 4 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 6 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 8 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 10 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 12 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 14 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.socket.out
new file mode 100644
index 0000000..7d2e6e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 
+process 2 binding: 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 
+process 4 binding: 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 
+process 6 binding: 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 
+process 8 binding: 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 
+process 10 binding: 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 
+process 12 binding: 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 
+process 14 binding: 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.board.out
new file mode 100644
index 0000000..4fcd88e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.core.out
new file mode 100644
index 0000000..4fcd88e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.core:2.out
new file mode 100644
index 0000000..15bd9ef
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.core:4.out
new file mode 100644
index 0000000..349c36c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread.out
new file mode 100644
index 0000000..baebe8d
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 
+process 8 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 9 binding: 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 13 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 15 binding: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread:2.out
new file mode 100644
index 0000000..4fcd88e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread:4.out
new file mode 100644
index 0000000..15bd9ef
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread:8.out
new file mode 100644
index 0000000..349c36c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.numa.out
new file mode 100644
index 0000000..349c36c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.socket.out
new file mode 100644
index 0000000..349c36c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:2.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.board.out
new file mode 100644
index 0000000..0feba67
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.core.out
new file mode 100644
index 0000000..1897bb9
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 6 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 7 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 14 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 15 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.core:2.out
new file mode 100644
index 0000000..0feba67
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.core:4.out
new file mode 100644
index 0000000..4bb862b
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread.out
new file mode 100644
index 0000000..5078c16
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 2 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 3 binding: 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 
+process 4 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 5 binding: 0 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 7 binding: 0 0 0 0 1 1 0 0 0 0 0 1 1 0 0 0 
+process 8 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 9 binding: 0 0 0 0 0 1 1 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 1 1 0 
+process 12 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 13 binding: 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 
+process 14 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
+process 15 binding: 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread:2.out
new file mode 100644
index 0000000..1897bb9
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 6 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 7 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 
+process 14 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 15 binding: 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread:4.out
new file mode 100644
index 0000000..0feba67
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread:8.out
new file mode 100644
index 0000000..4bb862b
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.numa.out
new file mode 100644
index 0000000..4bb862b
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.socket.out
new file mode 100644
index 0000000..4bb862b
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:4.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.board.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.core.out
new file mode 100644
index 0000000..b4a0141
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 4 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 5 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 10 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.core:2.out
new file mode 100644
index 0000000..e9efd88
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.core:4.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread.out
new file mode 100644
index 0000000..0d50a3a
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 3 binding: 0 0 1 1 1 1 0 0 0 1 1 1 1 0 0 0 
+process 4 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 5 binding: 0 0 0 1 1 1 1 0 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 1 1 1 1 0 
+process 8 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 9 binding: 1 0 0 0 0 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 1 0 0 0 0 1 1 1 
+process 12 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 13 binding: 1 1 1 0 0 0 0 1 1 1 0 0 0 0 1 1 
+process 14 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
+process 15 binding: 1 1 1 1 0 0 0 0 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread:2.out
new file mode 100644
index 0000000..b4a0141
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 4 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 5 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 
+process 10 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread:4.out
new file mode 100644
index 0000000..e9efd88
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread:8.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.numa.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.socket.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.hwthread:8.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.board.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.core.out
new file mode 100644
index 0000000..1c74e8f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.core:2.out
new file mode 100644
index 0000000..8529a43
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.core:4.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread.out
new file mode 100644
index 0000000..e8714ef
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 8 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread:2.out
new file mode 100644
index 0000000..1c74e8f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread:4.out
new file mode 100644
index 0000000..8529a43
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread:8.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.numa.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.socket.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.numa.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.board.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.core.out
new file mode 100644
index 0000000..1c74e8f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.core:2.out
new file mode 100644
index 0000000..8529a43
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.core:4.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread.out
new file mode 100644
index 0000000..e8714ef
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 8 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread:2.out
new file mode 100644
index 0000000..1c74e8f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread:4.out
new file mode 100644
index 0000000..8529a43
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread:8.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.numa.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.socket.out
new file mode 100644
index 0000000..5ecae3c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo2.socket.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.board.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.board.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.board.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.core.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.core:2.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.core:4.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread:2.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread:4.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread:8.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.numa.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.socket.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.board.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.core.out
new file mode 100644
index 0000000..dca323c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 1 1 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 1 1 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 0 1 1 0 
+process 6 binding: 0 0 0 0 0 0 1 1 
+process 7 binding: 1 0 0 0 0 0 0 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 1 1 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 1 1 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 0 1 1 0 
+process 14 binding: 0 0 0 0 0 0 1 1 
+process 15 binding: 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.core:2.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.core:4.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread.out
new file mode 100644
index 0000000..dca323c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 1 1 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 1 1 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 0 1 1 0 
+process 6 binding: 0 0 0 0 0 0 1 1 
+process 7 binding: 1 0 0 0 0 0 0 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 1 1 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 1 1 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 0 1 1 0 
+process 14 binding: 0 0 0 0 0 0 1 1 
+process 15 binding: 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread:2.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread:4.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread:8.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.numa.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.socket.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:2.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.board.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.core.out
new file mode 100644
index 0000000..bbf9f7f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 0 1 1 1 1 0 
+process 4 binding: 0 0 0 0 1 1 1 1 
+process 5 binding: 1 0 0 0 0 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 1 0 0 0 0 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 1 1 1 1 0 0 0 
+process 10 binding: 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 0 1 1 1 1 0 
+process 12 binding: 0 0 0 0 1 1 1 1 
+process 13 binding: 1 0 0 0 0 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.core:2.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.core:4.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread.out
new file mode 100644
index 0000000..bbf9f7f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 0 1 1 1 1 0 
+process 4 binding: 0 0 0 0 1 1 1 1 
+process 5 binding: 1 0 0 0 0 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 1 0 0 0 0 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 1 1 1 1 0 0 0 
+process 10 binding: 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 0 1 1 1 1 0 
+process 12 binding: 0 0 0 0 1 1 1 1 
+process 13 binding: 1 0 0 0 0 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread:2.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread:4.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread:8.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.numa.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.socket.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.core:4.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.board.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
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+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.core.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
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+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.core:2.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
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+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
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+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.core:4.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 2 binding: 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 
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+process 12 binding: 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
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+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread:2.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread:4.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread:8.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.numa.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.socket.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.board.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.core.out
new file mode 100644
index 0000000..dca323c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 1 1 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 1 1 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 0 1 1 0 
+process 6 binding: 0 0 0 0 0 0 1 1 
+process 7 binding: 1 0 0 0 0 0 0 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 1 1 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 1 1 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 0 1 1 0 
+process 14 binding: 0 0 0 0 0 0 1 1 
+process 15 binding: 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.core:2.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.core:4.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread.out
new file mode 100644
index 0000000..dca323c
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 1 1 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 1 1 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 0 1 1 0 
+process 6 binding: 0 0 0 0 0 0 1 1 
+process 7 binding: 1 0 0 0 0 0 0 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 1 1 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 1 1 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 0 1 1 0 
+process 14 binding: 0 0 0 0 0 0 1 1 
+process 15 binding: 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread:2.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread:4.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread:8.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
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+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.numa.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
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+process 8 binding: 1 1 0 0 0 0 0 0 
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+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.socket.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:2.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
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+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.board.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.core.out
new file mode 100644
index 0000000..bbf9f7f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 0 1 1 1 1 0 
+process 4 binding: 0 0 0 0 1 1 1 1 
+process 5 binding: 1 0 0 0 0 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 1 0 0 0 0 1 
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+process 9 binding: 0 1 1 1 1 0 0 0 
+process 10 binding: 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 0 1 1 1 1 0 
+process 12 binding: 0 0 0 0 1 1 1 1 
+process 13 binding: 1 0 0 0 0 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.core:2.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 
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+process 10 binding: 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.core:4.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
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+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread.out
new file mode 100644
index 0000000..bbf9f7f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 1 1 1 1 0 0 0 
+process 2 binding: 0 0 1 1 1 1 0 0 
+process 3 binding: 0 0 0 1 1 1 1 0 
+process 4 binding: 0 0 0 0 1 1 1 1 
+process 5 binding: 1 0 0 0 0 1 1 1 
+process 6 binding: 1 1 0 0 0 0 1 1 
+process 7 binding: 1 1 1 0 0 0 0 1 
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+process 10 binding: 0 0 1 1 1 1 0 0 
+process 11 binding: 0 0 0 1 1 1 1 0 
+process 12 binding: 0 0 0 0 1 1 1 1 
+process 13 binding: 1 0 0 0 0 1 1 1 
+process 14 binding: 1 1 0 0 0 0 1 1 
+process 15 binding: 1 1 1 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread:2.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 
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+process 11 binding: 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread:4.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread:8.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.numa.out
new file mode 100644
index 0000000..222e431
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 1 1 
+process 2 binding: 1 1 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 1 1 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 1 1 
+process 6 binding: 1 1 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 1 1 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 1 1 
+process 10 binding: 1 1 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 1 1 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 1 1 
+process 14 binding: 1 1 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.socket.out
new file mode 100644
index 0000000..791332f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:4.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 0 0 0 0 
+process 1 binding: 0 0 1 1 1 1 0 0 
+process 2 binding: 0 0 0 0 1 1 1 1 
+process 3 binding: 1 1 0 0 0 0 1 1 
+process 4 binding: 1 1 1 1 0 0 0 0 
+process 5 binding: 0 0 1 1 1 1 0 0 
+process 6 binding: 0 0 0 0 1 1 1 1 
+process 7 binding: 1 1 0 0 0 0 1 1 
+process 8 binding: 1 1 1 1 0 0 0 0 
+process 9 binding: 0 0 1 1 1 1 0 0 
+process 10 binding: 0 0 0 0 1 1 1 1 
+process 11 binding: 1 1 0 0 0 0 1 1 
+process 12 binding: 1 1 1 1 0 0 0 0 
+process 13 binding: 0 0 1 1 1 1 0 0 
+process 14 binding: 0 0 0 0 1 1 1 1 
+process 15 binding: 1 1 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.hwthread:8.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.numa.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.board.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.core.out
new file mode 100644
index 0000000..f235420
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 1 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 1 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 1 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 1 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 1 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 1 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.core:2.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.core:4.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread.out
new file mode 100644
index 0000000..f235420
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 1 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 1 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 1 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 1 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 1 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 1 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 1 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 1 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread:2.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread:4.out
new file mode 100644
index 0000000..1e3810e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 1 0 0 
+process 2 binding: 0 0 1 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 1 0 0 
+process 6 binding: 0 0 1 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 1 0 0 
+process 10 binding: 0 0 1 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 1 0 0 
+process 14 binding: 0 0 1 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread:8.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.numa.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.socket.out
new file mode 100644
index 0000000..f5876e1
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo3.socket.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 0 0 0 0 0 0 
+process 1 binding: 0 0 1 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 1 0 0 
+process 3 binding: 0 0 0 0 0 0 1 1 
+process 4 binding: 1 1 0 0 0 0 0 0 
+process 5 binding: 0 0 1 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 1 0 0 
+process 7 binding: 0 0 0 0 0 0 1 1 
+process 8 binding: 1 1 0 0 0 0 0 0 
+process 9 binding: 0 0 1 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 1 0 0 
+process 11 binding: 0 0 0 0 0 0 1 1 
+process 12 binding: 1 1 0 0 0 0 0 0 
+process 13 binding: 0 0 1 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 1 0 0 
+process 15 binding: 0 0 0 0 0 0 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.board.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.board.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.board.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.core.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.core:2.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.core:4.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread:2.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread:4.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread:8.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.numa.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.socket.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.board.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 0 1 0 
+process 6 binding: 0 1 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 1 0 1 
+process 8 binding: 1 0 1 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 1 0 
+process 10 binding: 0 1 0 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.core.out
new file mode 100644
index 0000000..03e44c6
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 1 0 1 0 0 0 
+process 2 binding: 0 0 0 0 1 0 1 0 
+process 3 binding: 0 1 0 0 0 0 1 0 
+process 4 binding: 0 1 0 1 0 0 0 0 
+process 5 binding: 0 0 0 1 0 1 0 0 
+process 6 binding: 0 0 0 0 0 1 0 1 
+process 7 binding: 1 0 0 0 0 0 0 1 
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+process 9 binding: 0 0 1 0 1 0 0 0 
+process 10 binding: 0 0 0 0 1 0 1 0 
+process 11 binding: 0 1 0 0 0 0 1 0 
+process 12 binding: 0 1 0 1 0 0 0 0 
+process 13 binding: 0 0 0 1 0 1 0 0 
+process 14 binding: 0 0 0 0 0 1 0 1 
+process 15 binding: 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.core:2.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 0 1 0 
+process 6 binding: 0 1 0 1 0 0 0 0 
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+process 10 binding: 0 1 0 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.core:4.out
new file mode 100644
index 0000000..08a3c94
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 1 0 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 1 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 1 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 0 1 0 
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+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 1 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 0 1 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread.out
new file mode 100644
index 0000000..03e44c6
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 1 0 1 0 0 0 
+process 2 binding: 0 0 0 0 1 0 1 0 
+process 3 binding: 0 1 0 0 0 0 1 0 
+process 4 binding: 0 1 0 1 0 0 0 0 
+process 5 binding: 0 0 0 1 0 1 0 0 
+process 6 binding: 0 0 0 0 0 1 0 1 
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+process 11 binding: 0 1 0 0 0 0 1 0 
+process 12 binding: 0 1 0 1 0 0 0 0 
+process 13 binding: 0 0 0 1 0 1 0 0 
+process 14 binding: 0 0 0 0 0 1 0 1 
+process 15 binding: 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread:2.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 0 1 0 
+process 6 binding: 0 1 0 1 0 0 0 0 
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+process 10 binding: 0 1 0 1 0 0 0 0 
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+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread:4.out
new file mode 100644
index 0000000..08a3c94
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 1 0 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 1 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 1 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 0 1 0 
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+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 1 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 0 1 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread:8.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
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+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.numa.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
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+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.socket.out
new file mode 100644
index 0000000..08a3c94
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:2.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
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+process 2 binding: 0 0 0 0 1 0 1 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
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+process 10 binding: 0 0 0 0 1 0 1 0 
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+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 1 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 0 1 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.board.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
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+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
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+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.core.out
new file mode 100644
index 0000000..04289b2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 1 0 1 0 1 0 
+process 2 binding: 0 1 0 1 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 1 0 
+process 4 binding: 0 1 0 1 0 1 0 1 
+process 5 binding: 1 0 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 0 1 0 1 
+process 7 binding: 1 0 1 0 1 0 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 1 0 1 0 1 0 
+process 10 binding: 0 1 0 1 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 1 0 
+process 12 binding: 0 1 0 1 0 1 0 1 
+process 13 binding: 1 0 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 0 1 0 1 
+process 15 binding: 1 0 1 0 1 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.core:2.out
new file mode 100644
index 0000000..338dd81
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 1 0 1 0 
+process 2 binding: 0 1 0 1 0 1 0 1 
+process 3 binding: 1 0 1 0 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 1 0 1 0 
+process 6 binding: 0 1 0 1 0 1 0 1 
+process 7 binding: 1 0 1 0 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 1 0 1 0 
+process 10 binding: 0 1 0 1 0 1 0 1 
+process 11 binding: 1 0 1 0 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 1 0 1 0 
+process 14 binding: 0 1 0 1 0 1 0 1 
+process 15 binding: 1 0 1 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.core:4.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread.out
new file mode 100644
index 0000000..04289b2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 1 0 1 0 1 0 
+process 2 binding: 0 1 0 1 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 1 0 
+process 4 binding: 0 1 0 1 0 1 0 1 
+process 5 binding: 1 0 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 0 1 0 1 
+process 7 binding: 1 0 1 0 1 0 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 1 0 1 0 1 0 
+process 10 binding: 0 1 0 1 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 1 0 
+process 12 binding: 0 1 0 1 0 1 0 1 
+process 13 binding: 1 0 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 0 1 0 1 
+process 15 binding: 1 0 1 0 1 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread:2.out
new file mode 100644
index 0000000..338dd81
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 1 0 1 0 
+process 2 binding: 0 1 0 1 0 1 0 1 
+process 3 binding: 1 0 1 0 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 1 0 1 0 
+process 6 binding: 0 1 0 1 0 1 0 1 
+process 7 binding: 1 0 1 0 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 1 0 1 0 
+process 10 binding: 0 1 0 1 0 1 0 1 
+process 11 binding: 1 0 1 0 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 1 0 1 0 
+process 14 binding: 0 1 0 1 0 1 0 1 
+process 15 binding: 1 0 1 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread:4.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread:8.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.numa.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.socket.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.core:4.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.board.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.core.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.core:2.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.core:4.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 1 0 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread:2.out
new file mode 100644
index 0000000..6ab904f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 0 0 
+process 2 binding: 0 1 0 0 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 0 
+process 4 binding: 0 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 0 0 1 0 
+process 6 binding: 0 0 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 0 0 
+process 10 binding: 0 1 0 0 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 0 
+process 12 binding: 0 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 0 0 1 0 
+process 14 binding: 0 0 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread:4.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
+process 9 binding: 0 1 0 0 0 0 0 0 
+process 10 binding: 0 0 1 0 0 0 0 0 
+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread:8.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
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+process 8 binding: 1 0 0 0 0 0 0 0 
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+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.numa.out
new file mode 100644
index 0000000..f9ac915
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 0 1 0 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 0 0 
+process 3 binding: 0 0 0 0 0 0 1 0 
+process 4 binding: 0 1 0 0 0 0 0 0 
+process 5 binding: 0 0 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 0 1 0 0 
+process 7 binding: 0 0 0 0 0 0 0 1 
+process 8 binding: 1 0 0 0 0 0 0 0 
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+process 10 binding: 0 0 0 0 1 0 0 0 
+process 11 binding: 0 0 0 0 0 0 1 0 
+process 12 binding: 0 1 0 0 0 0 0 0 
+process 13 binding: 0 0 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 0 1 0 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.socket.out
new file mode 100644
index 0000000..8212b98
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 0 0 0 0 0 0 
+process 1 binding: 0 1 0 0 0 0 0 0 
+process 2 binding: 0 0 1 0 0 0 0 0 
+process 3 binding: 0 0 0 1 0 0 0 0 
+process 4 binding: 0 0 0 0 1 0 0 0 
+process 5 binding: 0 0 0 0 0 1 0 0 
+process 6 binding: 0 0 0 0 0 0 1 0 
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+process 11 binding: 0 0 0 1 0 0 0 0 
+process 12 binding: 0 0 0 0 1 0 0 0 
+process 13 binding: 0 0 0 0 0 1 0 0 
+process 14 binding: 0 0 0 0 0 0 1 0 
+process 15 binding: 0 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.board.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
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+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 0 1 0 
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+process 13 binding: 0 0 0 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.core.out
new file mode 100644
index 0000000..03e44c6
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
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+process 4 binding: 0 1 0 1 0 0 0 0 
+process 5 binding: 0 0 0 1 0 1 0 0 
+process 6 binding: 0 0 0 0 0 1 0 1 
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+process 12 binding: 0 1 0 1 0 0 0 0 
+process 13 binding: 0 0 0 1 0 1 0 0 
+process 14 binding: 0 0 0 0 0 1 0 1 
+process 15 binding: 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.core:2.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
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+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.core:4.out
new file mode 100644
index 0000000..08a3c94
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 1 0 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 1 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 1 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 0 1 0 
+process 7 binding: 0 0 0 0 0 1 0 1 
+process 8 binding: 1 0 1 0 0 0 0 0 
+process 9 binding: 0 1 0 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 1 0 
+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 1 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 0 1 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread.out
new file mode 100644
index 0000000..03e44c6
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 1 0 1 0 0 0 
+process 2 binding: 0 0 0 0 1 0 1 0 
+process 3 binding: 0 1 0 0 0 0 1 0 
+process 4 binding: 0 1 0 1 0 0 0 0 
+process 5 binding: 0 0 0 1 0 1 0 0 
+process 6 binding: 0 0 0 0 0 1 0 1 
+process 7 binding: 1 0 0 0 0 0 0 1 
+process 8 binding: 1 0 1 0 0 0 0 0 
+process 9 binding: 0 0 1 0 1 0 0 0 
+process 10 binding: 0 0 0 0 1 0 1 0 
+process 11 binding: 0 1 0 0 0 0 1 0 
+process 12 binding: 0 1 0 1 0 0 0 0 
+process 13 binding: 0 0 0 1 0 1 0 0 
+process 14 binding: 0 0 0 0 0 1 0 1 
+process 15 binding: 1 0 0 0 0 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread:2.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 0 1 0 
+process 6 binding: 0 1 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 1 0 1 
+process 8 binding: 1 0 1 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 1 0 
+process 10 binding: 0 1 0 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread:4.out
new file mode 100644
index 0000000..08a3c94
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 1 0 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 1 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 1 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 0 1 0 
+process 7 binding: 0 0 0 0 0 1 0 1 
+process 8 binding: 1 0 1 0 0 0 0 0 
+process 9 binding: 0 1 0 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 1 0 
+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 1 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 0 1 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread:8.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 0 1 0 
+process 6 binding: 0 1 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 1 0 1 
+process 8 binding: 1 0 1 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 1 0 
+process 10 binding: 0 1 0 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.numa.out
new file mode 100644
index 0000000..a6bf2e4
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 0 0 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 0 0 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 0 0 0 1 0 1 0 
+process 6 binding: 0 1 0 1 0 0 0 0 
+process 7 binding: 0 0 0 0 0 1 0 1 
+process 8 binding: 1 0 1 0 0 0 0 0 
+process 9 binding: 0 0 0 0 1 0 1 0 
+process 10 binding: 0 1 0 1 0 0 0 0 
+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 0 0 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 0 0 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.socket.out
new file mode 100644
index 0000000..08a3c94
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:2.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 0 0 0 0 
+process 1 binding: 0 1 0 1 0 0 0 0 
+process 2 binding: 0 0 0 0 1 0 1 0 
+process 3 binding: 0 0 0 0 0 1 0 1 
+process 4 binding: 1 0 1 0 0 0 0 0 
+process 5 binding: 0 1 0 1 0 0 0 0 
+process 6 binding: 0 0 0 0 1 0 1 0 
+process 7 binding: 0 0 0 0 0 1 0 1 
+process 8 binding: 1 0 1 0 0 0 0 0 
+process 9 binding: 0 1 0 1 0 0 0 0 
+process 10 binding: 0 0 0 0 1 0 1 0 
+process 11 binding: 0 0 0 0 0 1 0 1 
+process 12 binding: 1 0 1 0 0 0 0 0 
+process 13 binding: 0 1 0 1 0 0 0 0 
+process 14 binding: 0 0 0 0 1 0 1 0 
+process 15 binding: 0 0 0 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.board.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.core.out
new file mode 100644
index 0000000..04289b2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 1 0 1 0 1 0 
+process 2 binding: 0 1 0 1 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 1 0 
+process 4 binding: 0 1 0 1 0 1 0 1 
+process 5 binding: 1 0 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 0 1 0 1 
+process 7 binding: 1 0 1 0 1 0 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 1 0 1 0 1 0 
+process 10 binding: 0 1 0 1 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 1 0 
+process 12 binding: 0 1 0 1 0 1 0 1 
+process 13 binding: 1 0 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 0 1 0 1 
+process 15 binding: 1 0 1 0 1 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.core:2.out
new file mode 100644
index 0000000..338dd81
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 1 0 1 0 
+process 2 binding: 0 1 0 1 0 1 0 1 
+process 3 binding: 1 0 1 0 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 1 0 1 0 
+process 6 binding: 0 1 0 1 0 1 0 1 
+process 7 binding: 1 0 1 0 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 1 0 1 0 
+process 10 binding: 0 1 0 1 0 1 0 1 
+process 11 binding: 1 0 1 0 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 1 0 1 0 
+process 14 binding: 0 1 0 1 0 1 0 1 
+process 15 binding: 1 0 1 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.core:4.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread.out
new file mode 100644
index 0000000..04289b2
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 1 0 1 0 1 0 
+process 2 binding: 0 1 0 1 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 1 0 
+process 4 binding: 0 1 0 1 0 1 0 1 
+process 5 binding: 1 0 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 0 1 0 1 
+process 7 binding: 1 0 1 0 1 0 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 1 0 1 0 1 0 
+process 10 binding: 0 1 0 1 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 1 0 
+process 12 binding: 0 1 0 1 0 1 0 1 
+process 13 binding: 1 0 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 0 1 0 1 
+process 15 binding: 1 0 1 0 1 0 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread:2.out
new file mode 100644
index 0000000..338dd81
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 1 0 1 0 
+process 2 binding: 0 1 0 1 0 1 0 1 
+process 3 binding: 1 0 1 0 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 1 0 1 0 
+process 6 binding: 0 1 0 1 0 1 0 1 
+process 7 binding: 1 0 1 0 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 1 0 1 0 
+process 10 binding: 0 1 0 1 0 1 0 1 
+process 11 binding: 1 0 1 0 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 1 0 1 0 
+process 14 binding: 0 1 0 1 0 1 0 1 
+process 15 binding: 1 0 1 0 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread:4.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread:8.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.numa.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.socket.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:4.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.hwthread:8.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.board.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.core.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.core:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.core:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread:2.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread:4.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread:8.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.numa.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.socket.out
new file mode 100644
index 0000000..6fbbe47
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.numa.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 1 1 1 1 1 1 1 
+process 1 binding: 1 1 1 1 1 1 1 1 
+process 2 binding: 1 1 1 1 1 1 1 1 
+process 3 binding: 1 1 1 1 1 1 1 1 
+process 4 binding: 1 1 1 1 1 1 1 1 
+process 5 binding: 1 1 1 1 1 1 1 1 
+process 6 binding: 1 1 1 1 1 1 1 1 
+process 7 binding: 1 1 1 1 1 1 1 1 
+process 8 binding: 1 1 1 1 1 1 1 1 
+process 9 binding: 1 1 1 1 1 1 1 1 
+process 10 binding: 1 1 1 1 1 1 1 1 
+process 11 binding: 1 1 1 1 1 1 1 1 
+process 12 binding: 1 1 1 1 1 1 1 1 
+process 13 binding: 1 1 1 1 1 1 1 1 
+process 14 binding: 1 1 1 1 1 1 1 1 
+process 15 binding: 1 1 1 1 1 1 1 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.board.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.board.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.board.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.core.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.core.out
new file mode 100644
index 0000000..9f36647
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.core.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 1 0 1 0 1 0 1 0 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 1 0 1 0 1 0 1 0 
+process 4 binding: 0 1 0 1 0 1 0 1 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 0 1 0 1 0 1 0 1 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 1 0 1 0 1 0 1 0 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 1 0 1 0 1 0 1 0 
+process 12 binding: 0 1 0 1 0 1 0 1 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 0 1 0 1 0 1 0 1 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.core:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.core:2.out
new file mode 100644
index 0000000..793a69e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.core:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 1 0 1 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 1 0 1 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 1 0 1 0 1 0 1 0 
+process 6 binding: 0 1 0 1 0 1 0 1 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 1 0 1 0 1 0 1 0 
+process 10 binding: 0 1 0 1 0 1 0 1 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 1 0 1 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 1 0 1 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.core:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.core:4.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.core:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread.out
new file mode 100644
index 0000000..9f36647
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 1 0 1 0 1 0 1 0 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 1 0 1 0 1 0 1 0 
+process 4 binding: 0 1 0 1 0 1 0 1 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 0 1 0 1 0 1 0 1 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 1 0 1 0 1 0 1 0 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 1 0 1 0 1 0 1 0 
+process 12 binding: 0 1 0 1 0 1 0 1 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 0 1 0 1 0 1 0 1 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread:2.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread:2.out
new file mode 100644
index 0000000..793a69e
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread:2.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 1 0 1 0 1 0 1 0 
+process 2 binding: 0 1 0 1 0 1 0 1 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 1 0 1 0 1 0 1 0 
+process 6 binding: 0 1 0 1 0 1 0 1 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 1 0 1 0 1 0 1 0 
+process 10 binding: 0 1 0 1 0 1 0 1 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 1 0 1 0 1 0 1 0 
+process 14 binding: 0 1 0 1 0 1 0 1 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread:4.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread:4.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread:4.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread:8.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread:8.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.hwthread:8.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.numa.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.numa.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.numa.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.socket.out b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.socket.out
new file mode 100644
index 0000000..c97689f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/expected.topo4.socket.socket.out
@@ -0,0 +1,16 @@
+process 0 binding: 1 0 1 0 1 0 1 0 
+process 1 binding: 0 1 0 1 0 1 0 1 
+process 2 binding: 1 0 1 0 1 0 1 0 
+process 3 binding: 0 1 0 1 0 1 0 1 
+process 4 binding: 1 0 1 0 1 0 1 0 
+process 5 binding: 0 1 0 1 0 1 0 1 
+process 6 binding: 1 0 1 0 1 0 1 0 
+process 7 binding: 0 1 0 1 0 1 0 1 
+process 8 binding: 1 0 1 0 1 0 1 0 
+process 9 binding: 0 1 0 1 0 1 0 1 
+process 10 binding: 1 0 1 0 1 0 1 0 
+process 11 binding: 0 1 0 1 0 1 0 1 
+process 12 binding: 1 0 1 0 1 0 1 0 
+process 13 binding: 0 1 0 1 0 1 0 1 
+process 14 binding: 1 0 1 0 1 0 1 0 
+process 15 binding: 0 1 0 1 0 1 0 1 
diff --git a/test/mpi/impls/hydra/binding_reference/topo1.xml b/test/mpi/impls/hydra/binding_reference/topo1.xml
new file mode 100644
index 0000000..82a4402
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/topo1.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE topology SYSTEM "hwloc.dtd">
+<topology>
+  <object type="Machine" os_index="0" cpuset="0x000000ff" complete_cpuset="0x0000ffff" online_cpuset="0x0000ffff" allowed_cpuset="0x0000ffff" nodeset="0x00000001" complete_nodeset="0x00000001" allowed_nodeset="0x00000001">
+    <info name="CPUModel" value="Intel(R) Core(TM) i7-4960HQ CPU @ 2.60GHz"/>
+    <info name="Backend" value="Darwin"/>
+    <info name="OSName" value="Darwin"/>
+    <info name="OSRelease" value="13.0.2"/>
+    <info name="OSVersion" value="Darwin Kernel Version 13.0.2: Sun Sep 29 19:38:57 PDT 2013; root:xnu-2422.75.4~1/RELEASE_X86_64"/>
+    <info name="HostName" value="snowflake.local"/>
+    <info name="Architecture" value="x86_64"/>
+    <info name="Backend" value="x86"/>
+    <object type="NUMANode" os_index="0" cpuset="0x000000ff" complete_cpuset="0x000000ff" online_cpuset="0x000000ff" allowed_cpuset="0x000000ff" nodeset="0x00000001" complete_nodeset="0x00000001" allowed_nodeset="0x00000001" local_memory="17179869184">
+      <page_type size="4096" count="0"/>
+      <object type="Cache" os_index="0" cpuset="0x000000ff" complete_cpuset="0x000000ff" online_cpuset="0x000000ff" allowed_cpuset="0x000000ff" nodeset="0x00000001" complete_nodeset="0x00000001" allowed_nodeset="0x00000001" cache_size="6291456" depth="3" cache_linesize="64" cache_associativity="0" cache_type="0">
+        <object type="Cache" os_index="0" cpuset="0x00000003" complete_cpuset="0x00000003" online_cpuset="0x00000003" allowed_cpuset="0x00000003" nodeset="0x00000001" complete_nodeset="0x00000001" allowed_nodeset="0x00000001" cache_size="262144" depth="2" cache_linesize="64" cache_associativity="8" cache_type="0">
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+              <object type="Core" os_index="0" cpuset="0x00000003" complete_cpuset="0x00000003" online_cpuset="0x00000003" allowed_cpuset="0x00000003" nodeset="0x00000001" complete_nodeset="0x00000001" allowed_nodeset="0x00000001">
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+        <object type="Cache" os_index="1" cpuset="0x0000000c" complete_cpuset="0x0000000c" online_cpuset="0x0000000c" allowed_cpuset="0x0000000c" nodeset="0x00000001" complete_nodeset="0x00000001" allowed_nodeset="0x00000001" cache_size="262144" depth="2" cache_linesize="64" cache_associativity="8" cache_type="0">
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diff --git a/test/mpi/impls/hydra/binding_reference/topo2.xml b/test/mpi/impls/hydra/binding_reference/topo2.xml
new file mode 100644
index 0000000..c61aff8
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/topo2.xml
@@ -0,0 +1,150 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE topology SYSTEM "hwloc.dtd">
+<topology>
+  <object type="Machine" os_level="-1" os_index="0" cpuset="0x0000ffff" complete_cpuset="0x0000ffff" online_cpuset="0x0000ffff" allowed_cpuset="0x0000ffff" nodeset="0x00000003" complete_nodeset="0x00000003" allowed_nodeset="0x00000003">
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+    <info name="DMIProductName" value="X8DTU"/>
+    <info name="DMIProductVersion" value="1234567890"/>
+    <info name="DMIBoardVendor" value="Supermicro"/>
+    <info name="DMIBoardName" value="X8DTU"/>
+    <info name="DMIBoardVersion" value="1234567890"/>
+    <info name="DMIBoardAssetTag" value="To Be Filled By O.E.M."/>
+    <info name="DMIChassisVendor" value="Supermicro"/>
+    <info name="DMIChassisType" value="17"/>
+    <info name="DMIChassisVersion" value="1234567890"/>
+    <info name="DMIChassisAssetTag" value="To Be Filled By O.E.M."/>
+    <info name="DMIBIOSVendor" value="American Megatrends Inc."/>
+    <info name="DMIBIOSVersion" value="1.1    "/>
+    <info name="DMIBIOSDate" value="10/05/2009"/>
+    <info name="DMISysVendor" value="Supermicro"/>
+    <info name="Backend" value="Linux"/>
+    <info name="OSName" value="Linux"/>
+    <info name="OSRelease" value="3.5.0-30-generic"/>
+    <info name="OSVersion" value="#51~precise1-Ubuntu SMP Wed May 15 08:48:19 UTC 2013"/>
+    <info name="HostName" value="stomp"/>
+    <info name="Architecture" value="x86_64"/>
+    <distances nbobjs="2" relative_depth="1" latency_base="10.000000">
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+      <latency value="2.000000"/>
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+          <object type="PCIDev" os_level="-1" os_index="4097" name="Intel Corporation 82576 Gigabit Network Connection" pci_busid="0000:01:00.1" pci_type="0200 [8086:10c9] [00d9:0000] 01" pci_link_speed="0.000000">
+            <info name="PCIVendor" value="Intel Corporation"/>
+            <info name="PCIDevice" value="82576 Gigabit Network Connection"/>
+            <object type="OSDev" os_level="-1" name="eth1" osdev_type="2">
+              <info name="Address" value="00:30:48:df:bc:43"/>
+            </object>
+          </object>
+        </object>
+        <object type="Bridge" os_level="-1" os_index="480" name="Intel Corporation 82801 PCI Bridge" bridge_type="1-1" depth="0" bridge_pci="0000:[07-07]" pci_busid="0000:00:1e.0" pci_type="0604 [8086:244e] [0000:0000] 90" pci_link_speed="0.000000">
+          <info name="PCIVendor" value="Intel Corporation"/>
+          <info name="PCIDevice" value="82801 PCI Bridge"/>
+          <object type="PCIDev" os_level="-1" os_index="28688" name="Matrox Electronics Systems Ltd. MGA G200eW WPCM450" pci_busid="0000:07:01.0" pci_type="0300 [102b:0532] [00d9:0000] 0a" pci_link_speed="0.000000">
+            <info name="PCIVendor" value="Matrox Electronics Systems Ltd."/>
+            <info name="PCIDevice" value="MGA G200eW WPCM450"/>
+          </object>
+        </object>
+        <object type="PCIDev" os_level="-1" os_index="498" name="Intel Corporation 82801JI (ICH10 Family) 4 port SATA IDE Controller #1" pci_busid="0000:00:1f.2" pci_type="0101 [8086:3a20] [00d9:0000] 00" pci_link_speed="0.000000">
+          <info name="PCIVendor" value="Intel Corporation"/>
+          <info name="PCIDevice" value="82801JI (ICH10 Family) 4 port SATA IDE Controller #1"/>
+        </object>
+        <object type="PCIDev" os_level="-1" os_index="501" name="Intel Corporation 82801JI (ICH10 Family) 2 port SATA IDE Controller #2" pci_busid="0000:00:1f.5" pci_type="0101 [8086:3a26] [00d9:0000] 00" pci_link_speed="0.000000">
+          <info name="PCIVendor" value="Intel Corporation"/>
+          <info name="PCIDevice" value="82801JI (ICH10 Family) 2 port SATA IDE Controller #2"/>
+        </object>
+      </object>
+    </object>
+    <object type="NUMANode" os_level="-1" os_index="1" cpuset="0x0000f0f0" complete_cpuset="0x0000f0f0" online_cpuset="0x0000f0f0" allowed_cpuset="0x0000f0f0" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002" local_memory="12884901888">
+      <page_type size="4096" count="3145728"/>
+      <page_type size="2097152" count="0"/>
+      <object type="Socket" os_level="-1" os_index="1" cpuset="0x0000f0f0" complete_cpuset="0x0000f0f0" online_cpuset="0x0000f0f0" allowed_cpuset="0x0000f0f0" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002">
+        <object type="Cache" os_level="-1" cpuset="0x0000f0f0" complete_cpuset="0x0000f0f0" online_cpuset="0x0000f0f0" allowed_cpuset="0x0000f0f0" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002" cache_size="8388608" depth="3" cache_linesize="64" cache_associativity="16">
+          <object type="Cache" os_level="-1" cpuset="0x00001010" complete_cpuset="0x00001010" online_cpuset="0x00001010" allowed_cpuset="0x00001010" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002" cache_size="262144" depth="2" cache_linesize="64" cache_associativity="8">
+            <object type="Cache" os_level="-1" cpuset="0x00001010" complete_cpuset="0x00001010" online_cpuset="0x00001010" allowed_cpuset="0x00001010" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+              <object type="Core" os_level="-1" os_index="0" cpuset="0x00001010" complete_cpuset="0x00001010" online_cpuset="0x00001010" allowed_cpuset="0x00001010" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002">
+                <object type="PU" os_level="-1" os_index="4" cpuset="0x00000010" complete_cpuset="0x00000010" online_cpuset="0x00000010" allowed_cpuset="0x00000010" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002"/>
+                <object type="PU" os_level="-1" os_index="12" cpuset="0x00001000" complete_cpuset="0x00001000" online_cpuset="0x00001000" allowed_cpuset="0x00001000" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002"/>
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+          <object type="Cache" os_level="-1" cpuset="0x00002020" complete_cpuset="0x00002020" online_cpuset="0x00002020" allowed_cpuset="0x00002020" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002" cache_size="262144" depth="2" cache_linesize="64" cache_associativity="8">
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+              <object type="Core" os_level="-1" os_index="1" cpuset="0x00002020" complete_cpuset="0x00002020" online_cpuset="0x00002020" allowed_cpuset="0x00002020" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002">
+                <object type="PU" os_level="-1" os_index="5" cpuset="0x00000020" complete_cpuset="0x00000020" online_cpuset="0x00000020" allowed_cpuset="0x00000020" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002"/>
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+          <object type="Cache" os_level="-1" cpuset="0x00004040" complete_cpuset="0x00004040" online_cpuset="0x00004040" allowed_cpuset="0x00004040" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002" cache_size="262144" depth="2" cache_linesize="64" cache_associativity="8">
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+              <object type="Core" os_level="-1" os_index="2" cpuset="0x00004040" complete_cpuset="0x00004040" online_cpuset="0x00004040" allowed_cpuset="0x00004040" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002">
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+          <object type="Cache" os_level="-1" cpuset="0x00008080" complete_cpuset="0x00008080" online_cpuset="0x00008080" allowed_cpuset="0x00008080" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002" cache_size="262144" depth="2" cache_linesize="64" cache_associativity="8">
+            <object type="Cache" os_level="-1" cpuset="0x00008080" complete_cpuset="0x00008080" online_cpuset="0x00008080" allowed_cpuset="0x00008080" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+              <object type="Core" os_level="-1" os_index="3" cpuset="0x00008080" complete_cpuset="0x00008080" online_cpuset="0x00008080" allowed_cpuset="0x00008080" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002">
+                <object type="PU" os_level="-1" os_index="7" cpuset="0x00000080" complete_cpuset="0x00000080" online_cpuset="0x00000080" allowed_cpuset="0x00000080" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002"/>
+                <object type="PU" os_level="-1" os_index="15" cpuset="0x00008000" complete_cpuset="0x00008000" online_cpuset="0x00008000" allowed_cpuset="0x00008000" nodeset="0x00000002" complete_nodeset="0x00000002" allowed_nodeset="0x00000002"/>
+              </object>
+            </object>
+          </object>
+        </object>
+      </object>
+    </object>
+  </object>
+</topology>
diff --git a/test/mpi/impls/hydra/binding_reference/topo3.xml b/test/mpi/impls/hydra/binding_reference/topo3.xml
new file mode 100644
index 0000000..8792484
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/topo3.xml
@@ -0,0 +1,144 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE topology SYSTEM "hwloc.dtd">
+<topology>
+  <object type="Machine" os_level="-1" os_index="0" cpuset="0x000000ff" complete_cpuset="0x000000ff" online_cpuset="0x000000ff" allowed_cpuset="0x000000ff" local_memory="8467828736">
+    <page_type size="4096" count="2067341"/>
+    <page_type size="2097152" count="0"/>
+    <info name="DMIProductName" value="H8QM8"/>
+    <info name="DMIProductVersion" value="1234567890"/>
+    <info name="DMIBoardVendor" value="Supermicro"/>
+    <info name="DMIBoardName" value="H8QM8"/>
+    <info name="DMIBoardVersion" value="1234567890"/>
+    <info name="DMIBoardAssetTag" value="To Be Filled By O.E.M."/>
+    <info name="DMIChassisVendor" value="To Be Filled By O.E.M."/>
+    <info name="DMIChassisType" value="3"/>
+    <info name="DMIChassisVersion" value="To Be Filled By O.E.M."/>
+    <info name="DMIChassisAssetTag" value="To Be Filled By O.E.M."/>
+    <info name="DMIBIOSVendor" value="American Megatrends Inc."/>
+    <info name="DMIBIOSVersion" value="080014 "/>
+    <info name="DMIBIOSDate" value="08/21/2006"/>
+    <info name="DMISysVendor" value="Supermicro"/>
+    <info name="Backend" value="Linux"/>
+    <info name="OSName" value="Linux"/>
+    <info name="OSRelease" value="3.2.0-31-generic-pae"/>
+    <info name="OSVersion" value="#50-Ubuntu SMP Fri Sep 7 16:39:45 UTC 2012"/>
+    <info name="HostName" value="octopus"/>
+    <info name="Architecture" value="i686"/>
+    <object type="Socket" os_level="-1" os_index="0" cpuset="0x00000003" complete_cpuset="0x00000003" online_cpuset="0x00000003" allowed_cpuset="0x00000003">
+      <object type="Cache" os_level="-1" cpuset="0x00000001" complete_cpuset="0x00000001" online_cpuset="0x00000001" allowed_cpuset="0x00000001" cache_size="1048576" depth="2" cache_linesize="64" cache_associativity="16">
+        <object type="Cache" os_level="-1" cpuset="0x00000001" complete_cpuset="0x00000001" online_cpuset="0x00000001" allowed_cpuset="0x00000001" cache_size="65536" depth="1" cache_linesize="64" cache_associativity="2">
+          <object type="Core" os_level="-1" os_index="0" cpuset="0x00000001" complete_cpuset="0x00000001" online_cpuset="0x00000001" allowed_cpuset="0x00000001">
+            <object type="PU" os_level="-1" os_index="0" cpuset="0x00000001" complete_cpuset="0x00000001" online_cpuset="0x00000001" allowed_cpuset="0x00000001"/>
+          </object>
+        </object>
+      </object>
+      <object type="Cache" os_level="-1" cpuset="0x00000002" complete_cpuset="0x00000002" online_cpuset="0x00000002" allowed_cpuset="0x00000002" cache_size="1048576" depth="2" cache_linesize="64" cache_associativity="16">
+        <object type="Cache" os_level="-1" cpuset="0x00000002" complete_cpuset="0x00000002" online_cpuset="0x00000002" allowed_cpuset="0x00000002" cache_size="65536" depth="1" cache_linesize="64" cache_associativity="2">
+          <object type="Core" os_level="-1" os_index="1" cpuset="0x00000002" complete_cpuset="0x00000002" online_cpuset="0x00000002" allowed_cpuset="0x00000002">
+            <object type="PU" os_level="-1" os_index="1" cpuset="0x00000002" complete_cpuset="0x00000002" online_cpuset="0x00000002" allowed_cpuset="0x00000002"/>
+          </object>
+        </object>
+      </object>
+    </object>
+    <object type="Socket" os_level="-1" os_index="1" cpuset="0x0000000c" complete_cpuset="0x0000000c" online_cpuset="0x0000000c" allowed_cpuset="0x0000000c">
+      <object type="Cache" os_level="-1" cpuset="0x00000004" complete_cpuset="0x00000004" online_cpuset="0x00000004" allowed_cpuset="0x00000004" cache_size="1048576" depth="2" cache_linesize="64" cache_associativity="16">
+        <object type="Cache" os_level="-1" cpuset="0x00000004" complete_cpuset="0x00000004" online_cpuset="0x00000004" allowed_cpuset="0x00000004" cache_size="65536" depth="1" cache_linesize="64" cache_associativity="2">
+          <object type="Core" os_level="-1" os_index="0" cpuset="0x00000004" complete_cpuset="0x00000004" online_cpuset="0x00000004" allowed_cpuset="0x00000004">
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+      <object type="Cache" os_level="-1" cpuset="0x00000008" complete_cpuset="0x00000008" online_cpuset="0x00000008" allowed_cpuset="0x00000008" cache_size="1048576" depth="2" cache_linesize="64" cache_associativity="16">
+        <object type="Cache" os_level="-1" cpuset="0x00000008" complete_cpuset="0x00000008" online_cpuset="0x00000008" allowed_cpuset="0x00000008" cache_size="65536" depth="1" cache_linesize="64" cache_associativity="2">
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+    <object type="Socket" os_level="-1" os_index="2" cpuset="0x00000030" complete_cpuset="0x00000030" online_cpuset="0x00000030" allowed_cpuset="0x00000030">
+      <object type="Cache" os_level="-1" cpuset="0x00000010" complete_cpuset="0x00000010" online_cpuset="0x00000010" allowed_cpuset="0x00000010" cache_size="1048576" depth="2" cache_linesize="64" cache_associativity="16">
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+      <object type="Cache" os_level="-1" cpuset="0x00000020" complete_cpuset="0x00000020" online_cpuset="0x00000020" allowed_cpuset="0x00000020" cache_size="1048576" depth="2" cache_linesize="64" cache_associativity="16">
+        <object type="Cache" os_level="-1" cpuset="0x00000020" complete_cpuset="0x00000020" online_cpuset="0x00000020" allowed_cpuset="0x00000020" cache_size="65536" depth="1" cache_linesize="64" cache_associativity="2">
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+    <object type="Socket" os_level="-1" os_index="3" cpuset="0x000000c0" complete_cpuset="0x000000c0" online_cpuset="0x000000c0" allowed_cpuset="0x000000c0">
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+        <object type="Cache" os_level="-1" cpuset="0x00000040" complete_cpuset="0x00000040" online_cpuset="0x00000040" allowed_cpuset="0x00000040" cache_size="65536" depth="1" cache_linesize="64" cache_associativity="2">
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+          </object>
+        </object>
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+      <object type="Cache" os_level="-1" cpuset="0x00000080" complete_cpuset="0x00000080" online_cpuset="0x00000080" allowed_cpuset="0x00000080" cache_size="1048576" depth="2" cache_linesize="64" cache_associativity="16">
+        <object type="Cache" os_level="-1" cpuset="0x00000080" complete_cpuset="0x00000080" online_cpuset="0x00000080" allowed_cpuset="0x00000080" cache_size="65536" depth="1" cache_linesize="64" cache_associativity="2">
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+      </object>
+    </object>
+    <object type="Bridge" os_level="-1" os_index="0" bridge_type="0-1" depth="0" bridge_pci="0000:[00-07]">
+      <object type="PCIDev" os_level="-1" os_index="64" name="NVIDIA Corporation MCP55 IDE" pci_busid="0000:00:04.0" pci_type="0101 [10de:036e] [00de:0084] a1" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="NVIDIA Corporation"/>
+        <info name="PCIDevice" value="MCP55 IDE"/>
+        <object type="OSDev" os_level="-1" name="sr0" osdev_type="0"/>
+      </object>
+      <object type="PCIDev" os_level="-1" os_index="80" name="NVIDIA Corporation MCP55 SATA Controller" pci_busid="0000:00:05.0" pci_type="0101 [10de:037f] [00de:0084] a3" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="NVIDIA Corporation"/>
+        <info name="PCIDevice" value="MCP55 SATA Controller"/>
+        <object type="OSDev" os_level="-1" name="sda" osdev_type="0"/>
+        <object type="OSDev" os_level="-1" name="sdb" osdev_type="0"/>
+      </object>
+      <object type="PCIDev" os_level="-1" os_index="81" name="NVIDIA Corporation MCP55 SATA Controller" pci_busid="0000:00:05.1" pci_type="0101 [10de:037f] [00de:0084] a3" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="NVIDIA Corporation"/>
+        <info name="PCIDevice" value="MCP55 SATA Controller"/>
+        <object type="OSDev" os_level="-1" name="sdc" osdev_type="0"/>
+      </object>
+      <object type="PCIDev" os_level="-1" os_index="82" name="NVIDIA Corporation MCP55 SATA Controller" pci_busid="0000:00:05.2" pci_type="0101 [10de:037f] [00de:0084] a3" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="NVIDIA Corporation"/>
+        <info name="PCIDevice" value="MCP55 SATA Controller"/>
+      </object>
+      <object type="Bridge" os_level="-1" os_index="96" name="NVIDIA Corporation MCP55 PCI bridge" bridge_type="1-1" depth="1" bridge_pci="0000:[01-01]" pci_busid="0000:00:06.0" pci_type="0604 [10de:0370] [0000:0000] a2" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="NVIDIA Corporation"/>
+        <info name="PCIDevice" value="MCP55 PCI bridge"/>
+        <object type="PCIDev" os_level="-1" os_index="4112" name="Advanced Micro Devices, Inc. [AMD/ATI] ES1000" pci_busid="0000:01:01.0" pci_type="0300 [1002:515e] [0002:005e] 02" pci_link_speed="0.000000">
+          <info name="PCIVendor" value="Advanced Micro Devices, Inc. [AMD/ATI]"/>
+          <info name="PCIDevice" value="ES1000"/>
+          <object type="OSDev" os_level="-1" name="controlD64" osdev_type="1"/>
+          <object type="OSDev" os_level="-1" name="card0" osdev_type="1"/>
+        </object>
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+    <object type="Bridge" os_level="-1" os_index="1" bridge_type="0-1" depth="0" bridge_pci="0000:[08-0a]">
+      <object type="Bridge" os_level="-1" os_index="32800" name="Advanced Micro Devices, Inc. [AMD] AMD-8132 PCI-X Bridge" bridge_type="1-1" depth="1" bridge_pci="0000:[0a-0a]" pci_busid="0000:08:02.0" pci_type="0604 [1022:7458] [0000:0000] 12" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="Advanced Micro Devices, Inc. [AMD]"/>
+        <info name="PCIDevice" value="AMD-8132 PCI-X Bridge"/>
+        <object type="PCIDev" os_level="-1" os_index="41008" name="Intel Corporation 82546GB Gigabit Ethernet Controller" pci_busid="0000:0a:03.0" pci_type="0200 [8086:1079] [00d9:007a] 03" pci_link_speed="0.000000">
+          <info name="PCIVendor" value="Intel Corporation"/>
+          <info name="PCIDevice" value="82546GB Gigabit Ethernet Controller"/>
+          <object type="OSDev" os_level="-1" name="eth0" osdev_type="2">
+            <info name="Address" value="00:30:48:57:8f:26"/>
+          </object>
+        </object>
+        <object type="PCIDev" os_level="-1" os_index="41009" name="Intel Corporation 82546GB Gigabit Ethernet Controller" pci_busid="0000:0a:03.1" pci_type="0200 [8086:1079] [00d9:007a] 03" pci_link_speed="0.000000">
+          <info name="PCIVendor" value="Intel Corporation"/>
+          <info name="PCIDevice" value="82546GB Gigabit Ethernet Controller"/>
+          <object type="OSDev" os_level="-1" name="eth1" osdev_type="2">
+            <info name="Address" value="00:30:48:57:8f:27"/>
+          </object>
+        </object>
+      </object>
+    </object>
+  </object>
+</topology>
diff --git a/test/mpi/impls/hydra/binding_reference/topo4.xml b/test/mpi/impls/hydra/binding_reference/topo4.xml
new file mode 100644
index 0000000..c1ef17f
--- /dev/null
+++ b/test/mpi/impls/hydra/binding_reference/topo4.xml
@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE topology SYSTEM "hwloc.dtd">
+<topology>
+  <object type="Machine" os_level="-1" os_index="0" cpuset="0x000000ff" complete_cpuset="0x000000ff" online_cpuset="0x000000ff" allowed_cpuset="0x000000ff" local_memory="33740599296">
+    <page_type size="4096" count="8237451"/>
+    <page_type size="2097152" count="0"/>
+    <info name="DMIProductName" value="X7DBU"/>
+    <info name="DMIProductVersion" value="0123456789"/>
+    <info name="DMIBoardVendor" value="Supermicro"/>
+    <info name="DMIBoardName" value="X7DBU"/>
+    <info name="DMIBoardVersion" value="PCB Version"/>
+    <info name="DMIBoardAssetTag" value=" "/>
+    <info name="DMIChassisVendor" value="Supermicro"/>
+    <info name="DMIChassisType" value="1"/>
+    <info name="DMIChassisVersion" value="0123456789"/>
+    <info name="DMIChassisAssetTag" value=" "/>
+    <info name="DMIBIOSVendor" value="Phoenix Technologies LTD"/>
+    <info name="DMIBIOSVersion" value="2.1a"/>
+    <info name="DMIBIOSDate" value="12/20/2008"/>
+    <info name="DMISysVendor" value="Supermicro"/>
+    <info name="Backend" value="Linux"/>
+    <info name="OSName" value="Linux"/>
+    <info name="OSRelease" value="3.2.0-31-generic"/>
+    <info name="OSVersion" value="#50-Ubuntu SMP Fri Sep 7 16:16:45 UTC 2012"/>
+    <info name="HostName" value="crush"/>
+    <info name="Architecture" value="x86_64"/>
+    <object type="Socket" os_level="-1" os_index="0" cpuset="0x00000055" complete_cpuset="0x00000055" online_cpuset="0x00000055" allowed_cpuset="0x00000055">
+      <object type="Cache" os_level="-1" cpuset="0x00000005" complete_cpuset="0x00000005" online_cpuset="0x00000005" allowed_cpuset="0x00000005" cache_size="6291456" depth="2" cache_linesize="64" cache_associativity="24">
+        <object type="Cache" os_level="-1" cpuset="0x00000001" complete_cpuset="0x00000001" online_cpuset="0x00000001" allowed_cpuset="0x00000001" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+          <object type="Core" os_level="-1" os_index="0" cpuset="0x00000001" complete_cpuset="0x00000001" online_cpuset="0x00000001" allowed_cpuset="0x00000001">
+            <object type="PU" os_level="-1" os_index="0" cpuset="0x00000001" complete_cpuset="0x00000001" online_cpuset="0x00000001" allowed_cpuset="0x00000001"/>
+          </object>
+        </object>
+        <object type="Cache" os_level="-1" cpuset="0x00000004" complete_cpuset="0x00000004" online_cpuset="0x00000004" allowed_cpuset="0x00000004" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+          <object type="Core" os_level="-1" os_index="1" cpuset="0x00000004" complete_cpuset="0x00000004" online_cpuset="0x00000004" allowed_cpuset="0x00000004">
+            <object type="PU" os_level="-1" os_index="2" cpuset="0x00000004" complete_cpuset="0x00000004" online_cpuset="0x00000004" allowed_cpuset="0x00000004"/>
+          </object>
+        </object>
+      </object>
+      <object type="Cache" os_level="-1" cpuset="0x00000050" complete_cpuset="0x00000050" online_cpuset="0x00000050" allowed_cpuset="0x00000050" cache_size="6291456" depth="2" cache_linesize="64" cache_associativity="24">
+        <object type="Cache" os_level="-1" cpuset="0x00000010" complete_cpuset="0x00000010" online_cpuset="0x00000010" allowed_cpuset="0x00000010" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+          <object type="Core" os_level="-1" os_index="2" cpuset="0x00000010" complete_cpuset="0x00000010" online_cpuset="0x00000010" allowed_cpuset="0x00000010">
+            <object type="PU" os_level="-1" os_index="4" cpuset="0x00000010" complete_cpuset="0x00000010" online_cpuset="0x00000010" allowed_cpuset="0x00000010"/>
+          </object>
+        </object>
+        <object type="Cache" os_level="-1" cpuset="0x00000040" complete_cpuset="0x00000040" online_cpuset="0x00000040" allowed_cpuset="0x00000040" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+          <object type="Core" os_level="-1" os_index="3" cpuset="0x00000040" complete_cpuset="0x00000040" online_cpuset="0x00000040" allowed_cpuset="0x00000040">
+            <object type="PU" os_level="-1" os_index="6" cpuset="0x00000040" complete_cpuset="0x00000040" online_cpuset="0x00000040" allowed_cpuset="0x00000040"/>
+          </object>
+        </object>
+      </object>
+    </object>
+    <object type="Socket" os_level="-1" os_index="1" cpuset="0x000000aa" complete_cpuset="0x000000aa" online_cpuset="0x000000aa" allowed_cpuset="0x000000aa">
+      <object type="Cache" os_level="-1" cpuset="0x0000000a" complete_cpuset="0x0000000a" online_cpuset="0x0000000a" allowed_cpuset="0x0000000a" cache_size="6291456" depth="2" cache_linesize="64" cache_associativity="24">
+        <object type="Cache" os_level="-1" cpuset="0x00000002" complete_cpuset="0x00000002" online_cpuset="0x00000002" allowed_cpuset="0x00000002" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+          <object type="Core" os_level="-1" os_index="0" cpuset="0x00000002" complete_cpuset="0x00000002" online_cpuset="0x00000002" allowed_cpuset="0x00000002">
+            <object type="PU" os_level="-1" os_index="1" cpuset="0x00000002" complete_cpuset="0x00000002" online_cpuset="0x00000002" allowed_cpuset="0x00000002"/>
+          </object>
+        </object>
+        <object type="Cache" os_level="-1" cpuset="0x00000008" complete_cpuset="0x00000008" online_cpuset="0x00000008" allowed_cpuset="0x00000008" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+          <object type="Core" os_level="-1" os_index="1" cpuset="0x00000008" complete_cpuset="0x00000008" online_cpuset="0x00000008" allowed_cpuset="0x00000008">
+            <object type="PU" os_level="-1" os_index="3" cpuset="0x00000008" complete_cpuset="0x00000008" online_cpuset="0x00000008" allowed_cpuset="0x00000008"/>
+          </object>
+        </object>
+      </object>
+      <object type="Cache" os_level="-1" cpuset="0x000000a0" complete_cpuset="0x000000a0" online_cpuset="0x000000a0" allowed_cpuset="0x000000a0" cache_size="6291456" depth="2" cache_linesize="64" cache_associativity="24">
+        <object type="Cache" os_level="-1" cpuset="0x00000020" complete_cpuset="0x00000020" online_cpuset="0x00000020" allowed_cpuset="0x00000020" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+          <object type="Core" os_level="-1" os_index="2" cpuset="0x00000020" complete_cpuset="0x00000020" online_cpuset="0x00000020" allowed_cpuset="0x00000020">
+            <object type="PU" os_level="-1" os_index="5" cpuset="0x00000020" complete_cpuset="0x00000020" online_cpuset="0x00000020" allowed_cpuset="0x00000020"/>
+          </object>
+        </object>
+        <object type="Cache" os_level="-1" cpuset="0x00000080" complete_cpuset="0x00000080" online_cpuset="0x00000080" allowed_cpuset="0x00000080" cache_size="32768" depth="1" cache_linesize="64" cache_associativity="8">
+          <object type="Core" os_level="-1" os_index="3" cpuset="0x00000080" complete_cpuset="0x00000080" online_cpuset="0x00000080" allowed_cpuset="0x00000080">
+            <object type="PU" os_level="-1" os_index="7" cpuset="0x00000080" complete_cpuset="0x00000080" online_cpuset="0x00000080" allowed_cpuset="0x00000080"/>
+          </object>
+        </object>
+      </object>
+    </object>
+    <object type="Bridge" os_level="-1" os_index="0" bridge_type="0-1" depth="0" bridge_pci="0000:[00-08]">
+      <object type="Bridge" os_level="-1" os_index="32" name="Intel Corporation 5000 Series Chipset PCI Express x8 Port 2-3" bridge_type="1-1" depth="1" bridge_pci="0000:[01-05]" pci_busid="0000:00:02.0" pci_type="0604 [8086:25f7] [0000:0000] b1" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="Intel Corporation"/>
+        <info name="PCIDevice" value="5000 Series Chipset PCI Express x8 Port 2-3"/>
+        <object type="Bridge" os_level="-1" os_index="4096" name="Intel Corporation 6311ESB/6321ESB PCI Express Upstream Port" bridge_type="1-1" depth="2" bridge_pci="0000:[02-04]" pci_busid="0000:01:00.0" pci_type="0604 [8086:3500] [0000:0000] 01" pci_link_speed="0.000000">
+          <info name="PCIVendor" value="Intel Corporation"/>
+          <info name="PCIDevice" value="6311ESB/6321ESB PCI Express Upstream Port"/>
+          <object type="Bridge" os_level="-1" os_index="8224" name="Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E3" bridge_type="1-1" depth="3" bridge_pci="0000:[04-04]" pci_busid="0000:02:02.0" pci_type="0604 [8086:3518] [0000:0000] 01" pci_link_speed="0.000000">
+            <info name="PCIVendor" value="Intel Corporation"/>
+            <info name="PCIDevice" value="6311ESB/6321ESB PCI Express Downstream Port E3"/>
+            <object type="PCIDev" os_level="-1" os_index="16384" name="Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper)" pci_busid="0000:04:00.0" pci_type="0200 [8086:1096] [00d9:0096] 01" pci_link_speed="0.000000">
+              <info name="PCIVendor" value="Intel Corporation"/>
+              <info name="PCIDevice" value="80003ES2LAN Gigabit Ethernet Controller (Copper)"/>
+              <object type="OSDev" os_level="-1" name="eth0" osdev_type="2">
+                <info name="Address" value="00:30:48:c8:29:7e"/>
+              </object>
+            </object>
+            <object type="PCIDev" os_level="-1" os_index="16385" name="Intel Corporation 80003ES2LAN Gigabit Ethernet Controller (Copper)" pci_busid="0000:04:00.1" pci_type="0200 [8086:1096] [00d9:0096] 01" pci_link_speed="0.000000">
+              <info name="PCIVendor" value="Intel Corporation"/>
+              <info name="PCIDevice" value="80003ES2LAN Gigabit Ethernet Controller (Copper)"/>
+              <object type="OSDev" os_level="-1" name="eth1" osdev_type="2">
+                <info name="Address" value="00:30:48:c8:29:7f"/>
+              </object>
+            </object>
+          </object>
+        </object>
+      </object>
+      <object type="Bridge" os_level="-1" os_index="480" name="Intel Corporation 82801 PCI Bridge" bridge_type="1-1" depth="1" bridge_pci="0000:[08-08]" pci_busid="0000:00:1e.0" pci_type="0604 [8086:244e] [0000:0000] d9" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="Intel Corporation"/>
+        <info name="PCIDevice" value="82801 PCI Bridge"/>
+        <object type="PCIDev" os_level="-1" os_index="32784" name="Advanced Micro Devices, Inc. [AMD/ATI] ES1000" pci_busid="0000:08:01.0" pci_type="0300 [1002:515e] [00d9:0080] 02" pci_link_speed="0.000000">
+          <info name="PCIVendor" value="Advanced Micro Devices, Inc. [AMD/ATI]"/>
+          <info name="PCIDevice" value="ES1000"/>
+          <object type="OSDev" os_level="-1" name="controlD64" osdev_type="1"/>
+          <object type="OSDev" os_level="-1" name="card0" osdev_type="1"/>
+        </object>
+      </object>
+      <object type="PCIDev" os_level="-1" os_index="497" name="Intel Corporation 631xESB/632xESB IDE Controller" pci_busid="0000:00:1f.1" pci_type="0101 [8086:269e] [00d9:0080] 09" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="Intel Corporation"/>
+        <info name="PCIDevice" value="631xESB/632xESB IDE Controller"/>
+        <object type="OSDev" os_level="-1" name="sr0" osdev_type="0"/>
+      </object>
+      <object type="PCIDev" os_level="-1" os_index="498" name="Intel Corporation 631xESB/632xESB SATA AHCI Controller" pci_busid="0000:00:1f.2" pci_type="0106 [8086:2681] [00d9:0080] 09" pci_link_speed="0.000000">
+        <info name="PCIVendor" value="Intel Corporation"/>
+        <info name="PCIDevice" value="631xESB/632xESB SATA AHCI Controller"/>
+        <object type="OSDev" os_level="-1" name="sda" osdev_type="0"/>
+      </object>
+    </object>
+  </object>
+</topology>
diff --git a/test/mpi/impls/hydra/dummy.c b/test/mpi/impls/hydra/dummy.c
new file mode 100644
index 0000000..7eeb76f
--- /dev/null
+++ b/test/mpi/impls/hydra/dummy.c
@@ -0,0 +1,11 @@
+/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
+/*
+ *  (C) 2013 by Argonne National Laboratory.
+ *      See COPYRIGHT in top-level directory.
+ */
+/* */
+
+int main( int argc, char *argv[] )
+{
+    return 0;
+}
diff --git a/test/mpi/impls/hydra/proc_binding.sh.in b/test/mpi/impls/hydra/proc_binding.sh.in
new file mode 100755
index 0000000..ee512bd
--- /dev/null
+++ b/test/mpi/impls/hydra/proc_binding.sh.in
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+HYDRA_TOPO_DEBUG=1
+export HYDRA_TOPO_DEBUG
+
+if test -f dummy; then
+    errors=0
+
+    for topo in topo1 topo2 topo3 topo4 ; do
+	export HWLOC_XMLFILE=@top_srcdir@/impls/hydra/binding_reference/$topo.xml
+	for bind in hwthread hwthread:2 hwthread:4 hwthread:8 core core:2 core:4 socket numa board ; do
+	    for map in hwthread hwthread:2 hwthread:4 hwthread:8 core core:2 core:4 socket numa board ; do
+		@MPIEXEC@ -bind-to $bind -map-by $map -n 16 ./dummy | sort -k2n > actual.${topo}.${bind}.${map}.out
+		diff @top_srcdir@/impls/hydra/binding_reference/expected.${topo}.${bind}.${map}.out \
+		    actual.${topo}.${bind}.${map}.out
+		if test "$?" != "0" ; then
+		    echo "ERROR $topo $bind $map"
+		    errors=1
+		else
+		    rm actual.${topo}.${bind}.${map}.out
+		fi
+	    done
+	done
+    done
+
+    if test "$errors" = "0"; then
+	echo " No Errors"
+	exit 0
+    fi
+else
+    echo "run make to build required dummy executable"
+    exit 1
+fi

http://git.mpich.org/mpich.git/commitdiff/774b7c814855a8766c0e9980b94199ab3bf4f796

commit 774b7c814855a8766c0e9980b94199ab3bf4f796
Author: Ken Raffenetti <raffenet at mcs.anl.gov>
Date:   Mon Jan 27 13:58:34 2014 -0600

    make topology debugging output more reliable
    
    Output processor affinity info as a single string. This should prevent
    mangled lines in the debugging output in most cases.
    
    Signed-off-by: Pavan Balaji <balaji at mcs.anl.gov>

diff --git a/src/pm/hydra/tools/topo/hwloc/topo_hwloc.c b/src/pm/hydra/tools/topo/hwloc/topo_hwloc.c
index be8978f..6e8bd58 100644
--- a/src/pm/hydra/tools/topo/hwloc/topo_hwloc.c
+++ b/src/pm/hydra/tools/topo/hwloc/topo_hwloc.c
@@ -10,6 +10,7 @@
 #include "topo_hwloc.h"
 
 #define MAP_LENGTH      (5)
+#define DBG_STR_LENGTH  (128)
 
 struct HYDT_topo_hwloc_info HYDT_topo_hwloc_info = { 0 };
 
@@ -456,15 +457,17 @@ HYD_status HYDT_topo_hwloc_bind(int idx)
 
         /* For debugging, print the binding bitmaps but don't actually bind. */
         if (HYDT_topo_info.debug) {
-            int i;
+            int i, cur;
+            char binding[DBG_STR_LENGTH];
 
-            HYDU_dump_noprefix(stdout, "process %d binding: ", idx);
+            cur = HYDU_snprintf(binding, DBG_STR_LENGTH, "process %d binding: ", idx);
 
             for (i = 0; i < HYDT_topo_hwloc_info.total_num_pus; i++)
-                HYDU_dump_noprefix(stdout, "%d ",
-                                   hwloc_bitmap_isset(HYDT_topo_hwloc_info.bitmap[id], i));
+                cur += HYDU_snprintf(&binding[cur], DBG_STR_LENGTH - cur + 1, "%d ",
+                                     hwloc_bitmap_isset(HYDT_topo_hwloc_info.bitmap[id], i));
 
-            HYDU_dump_noprefix(stdout, "\n");
+            HYDU_snprintf(&binding[cur], DBG_STR_LENGTH - cur + 1, "\n");
+            HYDU_dump_noprefix(stdout, "%s", binding);
         }
         else {
             hwloc_set_cpubind(topology, HYDT_topo_hwloc_info.bitmap[id], 0);

-----------------------------------------------------------------------

Summary of changes:
 src/pm/hydra/tools/topo/hwloc/topo_hwloc.c         |   13 +-
 test/mpi/.gitignore                                |    2 +
 test/mpi/configure.ac                              |    3 +
 test/mpi/impls/Makefile.am                         |    2 +-
 test/mpi/impls/hydra/Makefile.am                   |   13 ++
 .../expected.topo1.board.board.out                 |   16 ++
 .../expected.topo1.board.core.out                  |   16 ++
 .../expected.topo1.board.core:2.out                |   16 ++
 .../expected.topo1.board.core:4.out                |   16 ++
 .../expected.topo1.board.hwthread.out              |   16 ++
 .../expected.topo1.board.hwthread:2.out            |   16 ++
 .../expected.topo1.board.hwthread:4.out            |   16 ++
 .../expected.topo1.board.hwthread:8.out            |   16 ++
 .../expected.topo1.board.numa.out                  |   16 ++
 .../expected.topo1.board.socket.out                |   16 ++
 .../expected.topo1.core.board.out                  |   16 ++
 .../binding_reference/expected.topo1.core.core.out |   16 ++
 .../expected.topo1.core.core:2.out                 |   16 ++
 .../expected.topo1.core.core:4.out                 |   16 ++
 .../expected.topo1.core.hwthread.out               |   16 ++
 .../expected.topo1.core.hwthread:2.out             |   16 ++
 .../expected.topo1.core.hwthread:4.out             |   16 ++
 .../expected.topo1.core.hwthread:8.out             |   16 ++
 .../binding_reference/expected.topo1.core.numa.out |   16 ++
 .../expected.topo1.core.socket.out                 |   16 ++
 .../expected.topo1.core:2.board.out                |   16 ++
 .../expected.topo1.core:2.core.out                 |   16 ++
 .../expected.topo1.core:2.core:2.out               |   16 ++
 .../expected.topo1.core:2.core:4.out               |   16 ++
 .../expected.topo1.core:2.hwthread.out             |   16 ++
 .../expected.topo1.core:2.hwthread:2.out           |   16 ++
 .../expected.topo1.core:2.hwthread:4.out           |   16 ++
 .../expected.topo1.core:2.hwthread:8.out           |   16 ++
 .../expected.topo1.core:2.numa.out                 |   16 ++
 .../expected.topo1.core:2.socket.out               |   16 ++
 .../expected.topo1.core:4.board.out                |   16 ++
 .../expected.topo1.core:4.core.out                 |   16 ++
 .../expected.topo1.core:4.core:2.out               |   16 ++
 .../expected.topo1.core:4.core:4.out               |   16 ++
 .../expected.topo1.core:4.hwthread.out             |   16 ++
 .../expected.topo1.core:4.hwthread:2.out           |   16 ++
 .../expected.topo1.core:4.hwthread:4.out           |   16 ++
 .../expected.topo1.core:4.hwthread:8.out           |   16 ++
 .../expected.topo1.core:4.numa.out                 |   16 ++
 .../expected.topo1.core:4.socket.out               |   16 ++
 .../expected.topo1.hwthread.board.out              |   16 ++
 .../expected.topo1.hwthread.core.out               |   16 ++
 .../expected.topo1.hwthread.core:2.out             |   16 ++
 .../expected.topo1.hwthread.core:4.out             |   16 ++
 .../expected.topo1.hwthread.hwthread.out           |   16 ++
 .../expected.topo1.hwthread.hwthread:2.out         |   16 ++
 .../expected.topo1.hwthread.hwthread:4.out         |   16 ++
 .../expected.topo1.hwthread.hwthread:8.out         |   16 ++
 .../expected.topo1.hwthread.numa.out               |   16 ++
 .../expected.topo1.hwthread.socket.out             |   16 ++
 .../expected.topo1.hwthread:2.board.out            |   16 ++
 .../expected.topo1.hwthread:2.core.out             |   16 ++
 .../expected.topo1.hwthread:2.core:2.out           |   16 ++
 .../expected.topo1.hwthread:2.core:4.out           |   16 ++
 .../expected.topo1.hwthread:2.hwthread.out         |   16 ++
 .../expected.topo1.hwthread:2.hwthread:2.out       |   16 ++
 .../expected.topo1.hwthread:2.hwthread:4.out       |   16 ++
 .../expected.topo1.hwthread:2.hwthread:8.out       |   16 ++
 .../expected.topo1.hwthread:2.numa.out             |   16 ++
 .../expected.topo1.hwthread:2.socket.out           |   16 ++
 .../expected.topo1.hwthread:4.board.out            |   16 ++
 .../expected.topo1.hwthread:4.core.out             |   16 ++
 .../expected.topo1.hwthread:4.core:2.out           |   16 ++
 .../expected.topo1.hwthread:4.core:4.out           |   16 ++
 .../expected.topo1.hwthread:4.hwthread.out         |   16 ++
 .../expected.topo1.hwthread:4.hwthread:2.out       |   16 ++
 .../expected.topo1.hwthread:4.hwthread:4.out       |   16 ++
 .../expected.topo1.hwthread:4.hwthread:8.out       |   16 ++
 .../expected.topo1.hwthread:4.numa.out             |   16 ++
 .../expected.topo1.hwthread:4.socket.out           |   16 ++
 .../expected.topo1.hwthread:8.board.out            |   16 ++
 .../expected.topo1.hwthread:8.core.out             |   16 ++
 .../expected.topo1.hwthread:8.core:2.out           |   16 ++
 .../expected.topo1.hwthread:8.core:4.out           |   16 ++
 .../expected.topo1.hwthread:8.hwthread.out         |   16 ++
 .../expected.topo1.hwthread:8.hwthread:2.out       |   16 ++
 .../expected.topo1.hwthread:8.hwthread:4.out       |   16 ++
 .../expected.topo1.hwthread:8.hwthread:8.out       |   16 ++
 .../expected.topo1.hwthread:8.numa.out             |   16 ++
 .../expected.topo1.hwthread:8.socket.out           |   16 ++
 .../expected.topo1.numa.board.out                  |   16 ++
 .../binding_reference/expected.topo1.numa.core.out |   16 ++
 .../expected.topo1.numa.core:2.out                 |   16 ++
 .../expected.topo1.numa.core:4.out                 |   16 ++
 .../expected.topo1.numa.hwthread.out               |   16 ++
 .../expected.topo1.numa.hwthread:2.out             |   16 ++
 .../expected.topo1.numa.hwthread:4.out             |   16 ++
 .../expected.topo1.numa.hwthread:8.out             |   16 ++
 .../binding_reference/expected.topo1.numa.numa.out |   16 ++
 .../expected.topo1.numa.socket.out                 |   16 ++
 .../expected.topo1.socket.board.out                |   16 ++
 .../expected.topo1.socket.core.out                 |   16 ++
 .../expected.topo1.socket.core:2.out               |   16 ++
 .../expected.topo1.socket.core:4.out               |   16 ++
 .../expected.topo1.socket.hwthread.out             |   16 ++
 .../expected.topo1.socket.hwthread:2.out           |   16 ++
 .../expected.topo1.socket.hwthread:4.out           |   16 ++
 .../expected.topo1.socket.hwthread:8.out           |   16 ++
 .../expected.topo1.socket.numa.out                 |   16 ++
 .../expected.topo1.socket.socket.out               |   16 ++
 .../expected.topo2.board.board.out                 |   16 ++
 .../expected.topo2.board.core.out                  |   16 ++
 .../expected.topo2.board.core:2.out                |   16 ++
 .../expected.topo2.board.core:4.out                |   16 ++
 .../expected.topo2.board.hwthread.out              |   16 ++
 .../expected.topo2.board.hwthread:2.out            |   16 ++
 .../expected.topo2.board.hwthread:4.out            |   16 ++
 .../expected.topo2.board.hwthread:8.out            |   16 ++
 .../expected.topo2.board.numa.out                  |   16 ++
 .../expected.topo2.board.socket.out                |   16 ++
 .../expected.topo2.core.board.out                  |   16 ++
 .../binding_reference/expected.topo2.core.core.out |   16 ++
 .../expected.topo2.core.core:2.out                 |   16 ++
 .../expected.topo2.core.core:4.out                 |   16 ++
 .../expected.topo2.core.hwthread.out               |   16 ++
 .../expected.topo2.core.hwthread:2.out             |   16 ++
 .../expected.topo2.core.hwthread:4.out             |   16 ++
 .../expected.topo2.core.hwthread:8.out             |   16 ++
 .../binding_reference/expected.topo2.core.numa.out |   16 ++
 .../expected.topo2.core.socket.out                 |   16 ++
 .../expected.topo2.core:2.board.out                |   16 ++
 .../expected.topo2.core:2.core.out                 |   16 ++
 .../expected.topo2.core:2.core:2.out               |   16 ++
 .../expected.topo2.core:2.core:4.out               |   16 ++
 .../expected.topo2.core:2.hwthread.out             |   16 ++
 .../expected.topo2.core:2.hwthread:2.out           |   16 ++
 .../expected.topo2.core:2.hwthread:4.out           |   16 ++
 .../expected.topo2.core:2.hwthread:8.out           |   16 ++
 .../expected.topo2.core:2.numa.out                 |   16 ++
 .../expected.topo2.core:2.socket.out               |   16 ++
 .../expected.topo2.core:4.board.out                |   16 ++
 .../expected.topo2.core:4.core.out                 |   16 ++
 .../expected.topo2.core:4.core:2.out               |   16 ++
 .../expected.topo2.core:4.core:4.out               |   16 ++
 .../expected.topo2.core:4.hwthread.out             |   16 ++
 .../expected.topo2.core:4.hwthread:2.out           |   16 ++
 .../expected.topo2.core:4.hwthread:4.out           |   16 ++
 .../expected.topo2.core:4.hwthread:8.out           |   16 ++
 .../expected.topo2.core:4.numa.out                 |   16 ++
 .../expected.topo2.core:4.socket.out               |   16 ++
 .../expected.topo2.hwthread.board.out              |   16 ++
 .../expected.topo2.hwthread.core.out               |   16 ++
 .../expected.topo2.hwthread.core:2.out             |   16 ++
 .../expected.topo2.hwthread.core:4.out             |   16 ++
 .../expected.topo2.hwthread.hwthread.out           |   16 ++
 .../expected.topo2.hwthread.hwthread:2.out         |   16 ++
 .../expected.topo2.hwthread.hwthread:4.out         |   16 ++
 .../expected.topo2.hwthread.hwthread:8.out         |   16 ++
 .../expected.topo2.hwthread.numa.out               |   16 ++
 .../expected.topo2.hwthread.socket.out             |   16 ++
 .../expected.topo2.hwthread:2.board.out            |   16 ++
 .../expected.topo2.hwthread:2.core.out             |   16 ++
 .../expected.topo2.hwthread:2.core:2.out           |   16 ++
 .../expected.topo2.hwthread:2.core:4.out           |   16 ++
 .../expected.topo2.hwthread:2.hwthread.out         |   16 ++
 .../expected.topo2.hwthread:2.hwthread:2.out       |   16 ++
 .../expected.topo2.hwthread:2.hwthread:4.out       |   16 ++
 .../expected.topo2.hwthread:2.hwthread:8.out       |   16 ++
 .../expected.topo2.hwthread:2.numa.out             |   16 ++
 .../expected.topo2.hwthread:2.socket.out           |   16 ++
 .../expected.topo2.hwthread:4.board.out            |   16 ++
 .../expected.topo2.hwthread:4.core.out             |   16 ++
 .../expected.topo2.hwthread:4.core:2.out           |   16 ++
 .../expected.topo2.hwthread:4.core:4.out           |   16 ++
 .../expected.topo2.hwthread:4.hwthread.out         |   16 ++
 .../expected.topo2.hwthread:4.hwthread:2.out       |   16 ++
 .../expected.topo2.hwthread:4.hwthread:4.out       |   16 ++
 .../expected.topo2.hwthread:4.hwthread:8.out       |   16 ++
 .../expected.topo2.hwthread:4.numa.out             |   16 ++
 .../expected.topo2.hwthread:4.socket.out           |   16 ++
 .../expected.topo2.hwthread:8.board.out            |   16 ++
 .../expected.topo2.hwthread:8.core.out             |   16 ++
 .../expected.topo2.hwthread:8.core:2.out           |   16 ++
 .../expected.topo2.hwthread:8.core:4.out           |   16 ++
 .../expected.topo2.hwthread:8.hwthread.out         |   16 ++
 .../expected.topo2.hwthread:8.hwthread:2.out       |   16 ++
 .../expected.topo2.hwthread:8.hwthread:4.out       |   16 ++
 .../expected.topo2.hwthread:8.hwthread:8.out       |   16 ++
 .../expected.topo2.hwthread:8.numa.out             |   16 ++
 .../expected.topo2.hwthread:8.socket.out           |   16 ++
 .../expected.topo2.numa.board.out                  |   16 ++
 .../binding_reference/expected.topo2.numa.core.out |   16 ++
 .../expected.topo2.numa.core:2.out                 |   16 ++
 .../expected.topo2.numa.core:4.out                 |   16 ++
 .../expected.topo2.numa.hwthread.out               |   16 ++
 .../expected.topo2.numa.hwthread:2.out             |   16 ++
 .../expected.topo2.numa.hwthread:4.out             |   16 ++
 .../expected.topo2.numa.hwthread:8.out             |   16 ++
 .../binding_reference/expected.topo2.numa.numa.out |   16 ++
 .../expected.topo2.numa.socket.out                 |   16 ++
 .../expected.topo2.socket.board.out                |   16 ++
 .../expected.topo2.socket.core.out                 |   16 ++
 .../expected.topo2.socket.core:2.out               |   16 ++
 .../expected.topo2.socket.core:4.out               |   16 ++
 .../expected.topo2.socket.hwthread.out             |   16 ++
 .../expected.topo2.socket.hwthread:2.out           |   16 ++
 .../expected.topo2.socket.hwthread:4.out           |   16 ++
 .../expected.topo2.socket.hwthread:8.out           |   16 ++
 .../expected.topo2.socket.numa.out                 |   16 ++
 .../expected.topo2.socket.socket.out               |   16 ++
 .../expected.topo3.board.board.out                 |   16 ++
 .../expected.topo3.board.core.out                  |   16 ++
 .../expected.topo3.board.core:2.out                |   16 ++
 .../expected.topo3.board.core:4.out                |   16 ++
 .../expected.topo3.board.hwthread.out              |   16 ++
 .../expected.topo3.board.hwthread:2.out            |   16 ++
 .../expected.topo3.board.hwthread:4.out            |   16 ++
 .../expected.topo3.board.hwthread:8.out            |   16 ++
 .../expected.topo3.board.numa.out                  |   16 ++
 .../expected.topo3.board.socket.out                |   16 ++
 .../expected.topo3.core.board.out                  |   16 ++
 .../binding_reference/expected.topo3.core.core.out |   16 ++
 .../expected.topo3.core.core:2.out                 |   16 ++
 .../expected.topo3.core.core:4.out                 |   16 ++
 .../expected.topo3.core.hwthread.out               |   16 ++
 .../expected.topo3.core.hwthread:2.out             |   16 ++
 .../expected.topo3.core.hwthread:4.out             |   16 ++
 .../expected.topo3.core.hwthread:8.out             |   16 ++
 .../binding_reference/expected.topo3.core.numa.out |   16 ++
 .../expected.topo3.core.socket.out                 |   16 ++
 .../expected.topo3.core:2.board.out                |   16 ++
 .../expected.topo3.core:2.core.out                 |   16 ++
 .../expected.topo3.core:2.core:2.out               |   16 ++
 .../expected.topo3.core:2.core:4.out               |   16 ++
 .../expected.topo3.core:2.hwthread.out             |   16 ++
 .../expected.topo3.core:2.hwthread:2.out           |   16 ++
 .../expected.topo3.core:2.hwthread:4.out           |   16 ++
 .../expected.topo3.core:2.hwthread:8.out           |   16 ++
 .../expected.topo3.core:2.numa.out                 |   16 ++
 .../expected.topo3.core:2.socket.out               |   16 ++
 .../expected.topo3.core:4.board.out                |   16 ++
 .../expected.topo3.core:4.core.out                 |   16 ++
 .../expected.topo3.core:4.core:2.out               |   16 ++
 .../expected.topo3.core:4.core:4.out               |   16 ++
 .../expected.topo3.core:4.hwthread.out             |   16 ++
 .../expected.topo3.core:4.hwthread:2.out           |   16 ++
 .../expected.topo3.core:4.hwthread:4.out           |   16 ++
 .../expected.topo3.core:4.hwthread:8.out           |   16 ++
 .../expected.topo3.core:4.numa.out                 |   16 ++
 .../expected.topo3.core:4.socket.out               |   16 ++
 .../expected.topo3.hwthread.board.out              |   16 ++
 .../expected.topo3.hwthread.core.out               |   16 ++
 .../expected.topo3.hwthread.core:2.out             |   16 ++
 .../expected.topo3.hwthread.core:4.out             |   16 ++
 .../expected.topo3.hwthread.hwthread.out           |   16 ++
 .../expected.topo3.hwthread.hwthread:2.out         |   16 ++
 .../expected.topo3.hwthread.hwthread:4.out         |   16 ++
 .../expected.topo3.hwthread.hwthread:8.out         |   16 ++
 .../expected.topo3.hwthread.numa.out               |   16 ++
 .../expected.topo3.hwthread.socket.out             |   16 ++
 .../expected.topo3.hwthread:2.board.out            |   16 ++
 .../expected.topo3.hwthread:2.core.out             |   16 ++
 .../expected.topo3.hwthread:2.core:2.out           |   16 ++
 .../expected.topo3.hwthread:2.core:4.out           |   16 ++
 .../expected.topo3.hwthread:2.hwthread.out         |   16 ++
 .../expected.topo3.hwthread:2.hwthread:2.out       |   16 ++
 .../expected.topo3.hwthread:2.hwthread:4.out       |   16 ++
 .../expected.topo3.hwthread:2.hwthread:8.out       |   16 ++
 .../expected.topo3.hwthread:2.numa.out             |   16 ++
 .../expected.topo3.hwthread:2.socket.out           |   16 ++
 .../expected.topo3.hwthread:4.board.out            |   16 ++
 .../expected.topo3.hwthread:4.core.out             |   16 ++
 .../expected.topo3.hwthread:4.core:2.out           |   16 ++
 .../expected.topo3.hwthread:4.core:4.out           |   16 ++
 .../expected.topo3.hwthread:4.hwthread.out         |   16 ++
 .../expected.topo3.hwthread:4.hwthread:2.out       |   16 ++
 .../expected.topo3.hwthread:4.hwthread:4.out       |   16 ++
 .../expected.topo3.hwthread:4.hwthread:8.out       |   16 ++
 .../expected.topo3.hwthread:4.numa.out             |   16 ++
 .../expected.topo3.hwthread:4.socket.out           |   16 ++
 .../expected.topo3.hwthread:8.board.out            |   16 ++
 .../expected.topo3.hwthread:8.core.out             |   16 ++
 .../expected.topo3.hwthread:8.core:2.out           |   16 ++
 .../expected.topo3.hwthread:8.core:4.out           |   16 ++
 .../expected.topo3.hwthread:8.hwthread.out         |   16 ++
 .../expected.topo3.hwthread:8.hwthread:2.out       |   16 ++
 .../expected.topo3.hwthread:8.hwthread:4.out       |   16 ++
 .../expected.topo3.hwthread:8.hwthread:8.out       |   16 ++
 .../expected.topo3.hwthread:8.numa.out             |   16 ++
 .../expected.topo3.hwthread:8.socket.out           |   16 ++
 .../expected.topo3.numa.board.out                  |   16 ++
 .../binding_reference/expected.topo3.numa.core.out |   16 ++
 .../expected.topo3.numa.core:2.out                 |   16 ++
 .../expected.topo3.numa.core:4.out                 |   16 ++
 .../expected.topo3.numa.hwthread.out               |   16 ++
 .../expected.topo3.numa.hwthread:2.out             |   16 ++
 .../expected.topo3.numa.hwthread:4.out             |   16 ++
 .../expected.topo3.numa.hwthread:8.out             |   16 ++
 .../binding_reference/expected.topo3.numa.numa.out |   16 ++
 .../expected.topo3.numa.socket.out                 |   16 ++
 .../expected.topo3.socket.board.out                |   16 ++
 .../expected.topo3.socket.core.out                 |   16 ++
 .../expected.topo3.socket.core:2.out               |   16 ++
 .../expected.topo3.socket.core:4.out               |   16 ++
 .../expected.topo3.socket.hwthread.out             |   16 ++
 .../expected.topo3.socket.hwthread:2.out           |   16 ++
 .../expected.topo3.socket.hwthread:4.out           |   16 ++
 .../expected.topo3.socket.hwthread:8.out           |   16 ++
 .../expected.topo3.socket.numa.out                 |   16 ++
 .../expected.topo3.socket.socket.out               |   16 ++
 .../expected.topo4.board.board.out                 |   16 ++
 .../expected.topo4.board.core.out                  |   16 ++
 .../expected.topo4.board.core:2.out                |   16 ++
 .../expected.topo4.board.core:4.out                |   16 ++
 .../expected.topo4.board.hwthread.out              |   16 ++
 .../expected.topo4.board.hwthread:2.out            |   16 ++
 .../expected.topo4.board.hwthread:4.out            |   16 ++
 .../expected.topo4.board.hwthread:8.out            |   16 ++
 .../expected.topo4.board.numa.out                  |   16 ++
 .../expected.topo4.board.socket.out                |   16 ++
 .../expected.topo4.core.board.out                  |   16 ++
 .../binding_reference/expected.topo4.core.core.out |   16 ++
 .../expected.topo4.core.core:2.out                 |   16 ++
 .../expected.topo4.core.core:4.out                 |   16 ++
 .../expected.topo4.core.hwthread.out               |   16 ++
 .../expected.topo4.core.hwthread:2.out             |   16 ++
 .../expected.topo4.core.hwthread:4.out             |   16 ++
 .../expected.topo4.core.hwthread:8.out             |   16 ++
 .../binding_reference/expected.topo4.core.numa.out |   16 ++
 .../expected.topo4.core.socket.out                 |   16 ++
 .../expected.topo4.core:2.board.out                |   16 ++
 .../expected.topo4.core:2.core.out                 |   16 ++
 .../expected.topo4.core:2.core:2.out               |   16 ++
 .../expected.topo4.core:2.core:4.out               |   16 ++
 .../expected.topo4.core:2.hwthread.out             |   16 ++
 .../expected.topo4.core:2.hwthread:2.out           |   16 ++
 .../expected.topo4.core:2.hwthread:4.out           |   16 ++
 .../expected.topo4.core:2.hwthread:8.out           |   16 ++
 .../expected.topo4.core:2.numa.out                 |   16 ++
 .../expected.topo4.core:2.socket.out               |   16 ++
 .../expected.topo4.core:4.board.out                |   16 ++
 .../expected.topo4.core:4.core.out                 |   16 ++
 .../expected.topo4.core:4.core:2.out               |   16 ++
 .../expected.topo4.core:4.core:4.out               |   16 ++
 .../expected.topo4.core:4.hwthread.out             |   16 ++
 .../expected.topo4.core:4.hwthread:2.out           |   16 ++
 .../expected.topo4.core:4.hwthread:4.out           |   16 ++
 .../expected.topo4.core:4.hwthread:8.out           |   16 ++
 .../expected.topo4.core:4.numa.out                 |   16 ++
 .../expected.topo4.core:4.socket.out               |   16 ++
 .../expected.topo4.hwthread.board.out              |   16 ++
 .../expected.topo4.hwthread.core.out               |   16 ++
 .../expected.topo4.hwthread.core:2.out             |   16 ++
 .../expected.topo4.hwthread.core:4.out             |   16 ++
 .../expected.topo4.hwthread.hwthread.out           |   16 ++
 .../expected.topo4.hwthread.hwthread:2.out         |   16 ++
 .../expected.topo4.hwthread.hwthread:4.out         |   16 ++
 .../expected.topo4.hwthread.hwthread:8.out         |   16 ++
 .../expected.topo4.hwthread.numa.out               |   16 ++
 .../expected.topo4.hwthread.socket.out             |   16 ++
 .../expected.topo4.hwthread:2.board.out            |   16 ++
 .../expected.topo4.hwthread:2.core.out             |   16 ++
 .../expected.topo4.hwthread:2.core:2.out           |   16 ++
 .../expected.topo4.hwthread:2.core:4.out           |   16 ++
 .../expected.topo4.hwthread:2.hwthread.out         |   16 ++
 .../expected.topo4.hwthread:2.hwthread:2.out       |   16 ++
 .../expected.topo4.hwthread:2.hwthread:4.out       |   16 ++
 .../expected.topo4.hwthread:2.hwthread:8.out       |   16 ++
 .../expected.topo4.hwthread:2.numa.out             |   16 ++
 .../expected.topo4.hwthread:2.socket.out           |   16 ++
 .../expected.topo4.hwthread:4.board.out            |   16 ++
 .../expected.topo4.hwthread:4.core.out             |   16 ++
 .../expected.topo4.hwthread:4.core:2.out           |   16 ++
 .../expected.topo4.hwthread:4.core:4.out           |   16 ++
 .../expected.topo4.hwthread:4.hwthread.out         |   16 ++
 .../expected.topo4.hwthread:4.hwthread:2.out       |   16 ++
 .../expected.topo4.hwthread:4.hwthread:4.out       |   16 ++
 .../expected.topo4.hwthread:4.hwthread:8.out       |   16 ++
 .../expected.topo4.hwthread:4.numa.out             |   16 ++
 .../expected.topo4.hwthread:4.socket.out           |   16 ++
 .../expected.topo4.hwthread:8.board.out            |   16 ++
 .../expected.topo4.hwthread:8.core.out             |   16 ++
 .../expected.topo4.hwthread:8.core:2.out           |   16 ++
 .../expected.topo4.hwthread:8.core:4.out           |   16 ++
 .../expected.topo4.hwthread:8.hwthread.out         |   16 ++
 .../expected.topo4.hwthread:8.hwthread:2.out       |   16 ++
 .../expected.topo4.hwthread:8.hwthread:4.out       |   16 ++
 .../expected.topo4.hwthread:8.hwthread:8.out       |   16 ++
 .../expected.topo4.hwthread:8.numa.out             |   16 ++
 .../expected.topo4.hwthread:8.socket.out           |   16 ++
 .../expected.topo4.numa.board.out                  |   16 ++
 .../binding_reference/expected.topo4.numa.core.out |   16 ++
 .../expected.topo4.numa.core:2.out                 |   16 ++
 .../expected.topo4.numa.core:4.out                 |   16 ++
 .../expected.topo4.numa.hwthread.out               |   16 ++
 .../expected.topo4.numa.hwthread:2.out             |   16 ++
 .../expected.topo4.numa.hwthread:4.out             |   16 ++
 .../expected.topo4.numa.hwthread:8.out             |   16 ++
 .../binding_reference/expected.topo4.numa.numa.out |   16 ++
 .../expected.topo4.numa.socket.out                 |   16 ++
 .../expected.topo4.socket.board.out                |   16 ++
 .../expected.topo4.socket.core.out                 |   16 ++
 .../expected.topo4.socket.core:2.out               |   16 ++
 .../expected.topo4.socket.core:4.out               |   16 ++
 .../expected.topo4.socket.hwthread.out             |   16 ++
 .../expected.topo4.socket.hwthread:2.out           |   16 ++
 .../expected.topo4.socket.hwthread:4.out           |   16 ++
 .../expected.topo4.socket.hwthread:8.out           |   16 ++
 .../expected.topo4.socket.numa.out                 |   16 ++
 .../expected.topo4.socket.socket.out               |   16 ++
 test/mpi/impls/hydra/binding_reference/topo1.xml   |   59 ++++++++
 test/mpi/impls/hydra/binding_reference/topo2.xml   |  150 ++++++++++++++++++++
 test/mpi/impls/hydra/binding_reference/topo3.xml   |  144 +++++++++++++++++++
 test/mpi/impls/hydra/binding_reference/topo4.xml   |  128 +++++++++++++++++
 test/mpi/impls/hydra/dummy.c                       |   11 ++
 test/mpi/impls/hydra/proc_binding.sh.in            |   33 +++++
 411 files changed, 6952 insertions(+), 6 deletions(-)
 create mode 100644 test/mpi/impls/hydra/Makefile.am
 create mode 100644 test/mpi/impls/hydra/binding_reference/expected.topo1.board.board.out
 create mode 100644 test/mpi/impls/hydra/binding_reference/expected.topo1.board.core.out
 create mode 100644 test/mpi/impls/hydra/binding_reference/expected.topo1.board.core:2.out
 create mode 100644 test/mpi/impls/hydra/binding_reference/expected.topo1.board.core:4.out
 create mode 100644 test/mpi/impls/hydra/binding_reference/expected.topo1.board.hwthread.out
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