Merge release-4-6 into master

[alexxy/gromacs.git] / src / gromacs / gmxlib / thread_mpi / once.c

diff --git a/src/gromacs/gmxlib/thread_mpi/once.c b/src/gromacs/gmxlib/thread_mpi/once.c
index a25c6db243452b4dfb844f14f57cc380e18b7d97..bee468ceea3fe522f374dbf7a0f633609eb369b8 100644 (file)
--- a/src/gromacs/gmxlib/thread_mpi/once.c
+++ b/src/gromacs/gmxlib/thread_mpi/once.c
@@ -137,7 +137,7 @@ void* tMPI_Once_wait(tMPI_Comm comm, void* (*function)(void*), void *param,
 
         tMPI_Atomic_memory_barrier_rel();
         /* signal that we're done */
-        tMPI_Atomic_fetch_add(&(cev->coll.current_sync), 1);
+        tMPI_Atomic_add_return(&(cev->coll.current_sync), 1);
         /* we need to keep being in sync */
         csync->syncs++;
     }