X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/025965074dbe4c1b04466cc260260470f28b7472..6de9090dd8692387ae343c587b26915f9922d7bd:/examples/smpi/bcast.c

diff --git a/examples/smpi/bcast.c b/examples/smpi/bcast.c
index 002061c1e4..72ad419524 100644
--- a/examples/smpi/bcast.c
+++ b/examples/smpi/bcast.c
@@ -1,25 +1,40 @@
+/* Copyright (c) 2009. The SimGrid Team.
+ * All rights reserved.                                                     */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
 #include <stdio.h>
 #include <mpi.h>
 
-#define INIT_VALUE 3
-#define TARGET_VALUE 42
-
-int main (int argc, char **argv) {
+int main(int argc, char **argv)
+{
   int size, rank;
-  int value = INIT_VALUE;
+  int value = 3;
+  double start_timer;
+  int quiet = 0;
+
   MPI_Init(&argc, &argv);
   MPI_Comm_size(MPI_COMM_WORLD, &size);
   MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+
+  if (argc > 1 && !strcmp(argv[1], "-q"))
+    quiet = 1;
+
+  start_timer = MPI_Wtime();
+
   if (0 == rank) {
-    value = TARGET_VALUE;
+    value = 17;
   }
-  fprintf(stderr,"node %d has value %d before broadcast\n", rank, value);
   MPI_Bcast(&value, 1, MPI_INT, 0, MPI_COMM_WORLD);
-  fprintf(stderr,"node %d has value %d after broadcast\n", rank, value);
-  if (value != TARGET_VALUE) {
-	  fprintf(stderr,"node %d don't have the target value after broadcast!!\n", rank);
-	  exit(1);
+  if (value != 17) {
+    printf("node %d has value %d after broadcast\n", rank, value);
   }
+
+  MPI_Barrier(MPI_COMM_WORLD);
+  if (0 == rank && !quiet)
+    printf("Elapsed time on rank %d: %lf s\n", rank,
+           MPI_Wtime() - start_timer);
   MPI_Finalize();
   return 0;
 }