[mpich-commits] [mpich] MPICH primary repository branch, master, updated. v3.2-410-gee2f295

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http://git.mpich.org/mpich.git/commitdiff/ee2f29508c93d5b37a979c0b0820a5401b6b69f8

commit ee2f29508c93d5b37a979c0b0820a5401b6b69f8
Author: Ken Raffenetti <raffenet at mcs.anl.gov>
Date:   Tue Aug 30 12:52:42 2016 -0500

    Add CH4 info to README and RELEASE_NOTES
    
    Signed-off-by: Pavan Balaji <balaji at anl.gov>

diff --git a/README.vin b/README.vin
index c845b17..5b0a2bf 100644
--- a/README.vin
+++ b/README.vin
@@ -397,8 +397,9 @@ relevant Makefiles.
 =================================
 
 The communication mechanisms in MPICH are called "devices". MPICH
-supports ch3 (default), as well as many third-party devices that are
-released and maintained by other institutes.
+supports ch3 (default) and ch4 (experimental), as well as many
+third-party devices that are released and maintained by other
+institutes.
 
                    *************************************
 
@@ -577,6 +578,57 @@ channel can be configured using the following option:
 
   --with-device=ch3:sock
 
+
+ch4 device
+**********
+The ch4 device contains different network and shared memory modules
+for communication. We currently support the ofi and ucx network
+modules, and posix shared memory module.
+
+ofi network module
+```````````````````
+The ofi netmod provides support for the OFI network programming interface.
+To enable, configure with the following option:
+
+  --with-device=ch4:ofi
+
+If the OFI include files and libraries are not in the normal search paths,
+you can specify them with the following options:
+
+  --with-libfabric-include= and --with-libfabric-lib=
+
+... or the if lib/ and include/ are in the same directory, you can use
+the following option:
+
+  --with-libfabric=
+
+ucx network module
+``````````````````
+The ucx netmod provides support for the Unified Communication X
+library. It can be built with the following configure option:
+
+  --with-device=ch4:ucx
+
+If the UCX include files and libraries are not in the normal search paths,
+you can specify them with the following options:
+
+  --with-ucx-include= and --with-ucx-lib=
+
+... or the if lib/ and include/ are in the same directory, you can use
+the following option:
+
+  --with-ucx=
+
+By default, the UCX library throws warnings when the system does not
+enable certain features that might hurt performance.  These are
+important warnings that might cause performance degradation on your
+system.  But you might need root privileges to fix some of them.  If
+you would like to disable such warnings, you can set the UCX log level
+to "error" instead of the default "warn" by using:
+
+  UCX_LOG_LEVEL=error
+  export UCX_LOG_LEVEL
+
 -------------------------------------------------------------------------
 
 5. Alternate Process Managers
diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index b3d7b1e..be423d0 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -2,6 +2,17 @@
                         KNOWN ISSUES
 ----------------------------------------------------------------------
 
+### CH4 preview
+
+ * Build Issues
+   - CH4 will not build with "--enable-strict".
+   - CH4 will not build with Solaris compilers.
+
+ * Test failures
+   - CH4 will not currently pass 100% of the testsuite.
+   - Test failures differ based on experimental setup and network
+     support built in.
+
 ### Solaris compilers
 
  * Compilation on solaris will freeze when MPICH is configured with 

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

Summary of changes:
 README.vin    |   56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 RELEASE_NOTES |   11 +++++++++++
 2 files changed, 65 insertions(+), 2 deletions(-)


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