[mpich-commits] [mpich] MPICH primary repository branch, master, updated. v3.0.4-411-g27f6340

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http://git.mpich.org/mpich.git/commitdiff/27f6340573fe2e7bc0f2a387ab791fa95ec1479d

commit 27f6340573fe2e7bc0f2a387ab791fa95ec1479d
Author: Pavan Balaji <balaji at mcs.anl.gov>
Date:   Wed Jul 31 10:51:54 2013 -0500

    Error in the buffer attached to dynamic windows.
    
    In MPICH, Win_attach/detach are essentially no-ops.  The actual
    accumulate calls don't actually check if the actual buffer is attached
    or not.  This is technically a user error.  The win_dynamic_acc test
    had a wrong buffer attached, but was still passing because of this
    reason.  This patch only corrects the test program.
    
    Thanks to Michael Raymond @ SGI for reporting the error.
    
    Signed-off-by: Xin Zhao <xinzhao3 at illinois.edu>

diff --git a/test/mpi/rma/win_dynamic_acc.c b/test/mpi/rma/win_dynamic_acc.c
index ebb0a35..ee9f725 100644
--- a/test/mpi/rma/win_dynamic_acc.c
+++ b/test/mpi/rma/win_dynamic_acc.c
@@ -34,7 +34,7 @@ int main(int argc, char **argv) {
                   MPI_COMM_WORLD);
 
     MPI_Win_create_dynamic(MPI_INFO_NULL, MPI_COMM_WORLD, &dyn_win);
-    MPI_Win_attach(dyn_win, &one, sizeof(int));
+    MPI_Win_attach(dyn_win, &val, sizeof(int));
 
     for (i = 0; i < ITER; i++) {
             MPI_Win_fence(MPI_MODE_NOPRECEDE, dyn_win);
@@ -50,7 +50,7 @@ int main(int argc, char **argv) {
         printf("%d -- Got %d, expected %d\n", rank, val, ITER);
     }
 
-    MPI_Win_detach(dyn_win, &one);
+    MPI_Win_detach(dyn_win, &val);
     MPI_Win_free(&dyn_win);
 
     MPI_Reduce(&errors, &all_errors, 1, MPI_INT, MPI_SUM, 0, MPI_COMM_WORLD);

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

Summary of changes:
 test/mpi/rma/win_dynamic_acc.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)


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