MPI_Startall: avoid returning MPI_ERR_REQUEST on NULL requests and co…

…unt = 0 Signed-off-by: Mikhail Kurnosov <[email protected]>
open-mpi · Dec 26, 2023 · 554a397 · 554a397
1 parent e5dbcf8
commit 554a397
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ompi/mpi/c/startall.c b/ompi/mpi/c/startall.c
@@ -59,7 +59,7 @@ int MPI_Startall(int count, MPI_Request requests[])
     if ( MPI_PARAM_CHECK ) {
         int rc = MPI_SUCCESS;
         OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
-        if (NULL == requests) {
+        if ((NULL == requests) && (0 != count)) {
             rc = MPI_ERR_REQUEST;
         } else if (count < 0) {
             rc = MPI_ERR_ARG;