mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-26 23:54:01 +00:00
d076a13c1d
This patch is required in order to make python-mpi4py tests pass. It is also a bug in the openmpi implementation to see full discussion see https://www.open-mpi.org/community/lists/users/2015/11/28030.php
31 lines
1.2 KiB
Diff
31 lines
1.2 KiB
Diff
commit 4ee20ba31dd64b8f899447cdad78ec2379acfce7
|
|
Author: Gilles Gouaillardet <gilles@rist.or.jp>
|
|
Date: Tue Nov 10 08:59:03 2015 +0900
|
|
|
|
fix NBC_Copy for legitimate zero size messages
|
|
|
|
(back ported from commit open-mpi/ompi@0bd765eddd33e3d4ac18ec644c60a5c160cb48dc)
|
|
(back ported from commit open-mpi/ompi@9a70765f27fdf17e70e1a115754fef7e5f16132a)
|
|
|
|
diff --git a/ompi/mca/coll/libnbc/nbc_internal.h b/ompi/mca/coll/libnbc/nbc_internal.h
|
|
index bf2f1cb..81be8cc 100644
|
|
--- a/ompi/mca/coll/libnbc/nbc_internal.h
|
|
+++ b/ompi/mca/coll/libnbc/nbc_internal.h
|
|
@@ -501,7 +501,14 @@ static inline int NBC_Copy(void *src, int srccount, MPI_Datatype srctype, void *
|
|
} else {
|
|
/* we have to pack and unpack */
|
|
res = MPI_Pack_size(srccount, srctype, comm, &size);
|
|
- if (MPI_SUCCESS != res || 0 == size) { printf("MPI Error in MPI_Pack_size() (%i:%i)\n", res, size); return (MPI_SUCCESS == res) ? MPI_ERR_SIZE : res;}
|
|
+ if (MPI_SUCCESS != res) {
|
|
+ printf ("MPI Error in MPI_Pack_size() (%i:%i)", res, size);
|
|
+ return res;
|
|
+ }
|
|
+
|
|
+ if (0 == size) {
|
|
+ return OMPI_SUCCESS;
|
|
+ }
|
|
packbuf = malloc(size);
|
|
if (NULL == packbuf) { printf("Error in malloc()\n"); return res; }
|
|
pos=0;
|
|
|