--- /dev/null
+/* 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>
+
+
+int main(int argc, char **argv)
+{
+ int size, rank;
+ int root = 0;
+ int value;
+ double start_timer;
+
+ MPI_Init(&argc, &argv);
+ MPI_Comm_size(MPI_COMM_WORLD, &size);
+ MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+
+ start_timer = MPI_Wtime();
+
+ MPI_Barrier(MPI_COMM_WORLD);
+
+ MPI_Barrier(MPI_COMM_WORLD);
+ if (0 == rank) {
+ printf("... Barrier ....\n");
+ printf("Elapsed=%lf s\n", MPI_Wtime() - start_timer);
+ }
+
+ MPI_Finalize();
+ return 0;
+}