X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/d5b29830df70e823202e384a7655e4371193ecd7..996be9435416557e2c1b20cbf462848b475d168d:/teshsuite/smpi/coll-allreduce/coll-allreduce.c

diff --git a/teshsuite/smpi/coll-allreduce/coll-allreduce.c b/teshsuite/smpi/coll-allreduce/coll-allreduce.c
index 45eeb9c8e5..a15eb6060b 100644
--- a/teshsuite/smpi/coll-allreduce/coll-allreduce.c
+++ b/teshsuite/smpi/coll-allreduce/coll-allreduce.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2009-2010, 2013-2014. The SimGrid Team.
+/* Copyright (c) 2009-2010, 2013-2018. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
@@ -10,11 +10,6 @@
 #include <errno.h>
 #include "mpi.h"
 
-#ifndef EXIT_SUCCESS
-#define EXIT_SUCCESS 0
-#define EXIT_FAILURE 1
-#endif
-
 int main(int argc, char *argv[])
 {
   int rank;
@@ -29,7 +24,7 @@ int main(int argc, char *argv[])
   MPI_Comm_rank(MPI_COMM_WORLD, &rank);
   MPI_Comm_size(MPI_COMM_WORLD, &size);
   if (maxlen > 1)
-    mult = size;
+    mult = maxlen > size ? size : maxlen;
   int* sb = (int *) xbt_malloc(size *maxlen * sizeof(int));
   int* rb = (int *) xbt_malloc(size *maxlen * sizeof(int));
 
@@ -42,7 +37,6 @@ int main(int argc, char *argv[])
   for (i = 0; i < size *mult; i++)
     printf("%d ", sb[i]);
   printf("]\n");
-
   status = MPI_Allreduce(sb, rb, size *maxlen, MPI_INT, MPI_SUM, MPI_COMM_WORLD);
 
   printf("[%d] rcvbuf=[", rank);
@@ -50,11 +44,9 @@ int main(int argc, char *argv[])
     printf("%d ", rb[i]);
   printf("]\n");
 
-  if (rank == 0) {
-    if (status != MPI_SUCCESS) {
-      printf("all_to_all returned %d\n", status);
-      fflush(stdout);
-    }
+  if (rank == 0 && status != MPI_SUCCESS) {
+    printf("all_to_all returned %d\n", status);
+    fflush(stdout);
   }
   xbt_free(sb);
   xbt_free(rb);