--- /dev/null
+#include "xbt/log.h"
+#include <stdio.h>
+#include <mpi.h>
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(MM_mpi, "Messages for this SMPI test");
+
+int main(int argc, char ** argv)
+{
+ size_t err;
+ size_t M = 8*1024;
+ size_t N = 32*1024;
+
+ MPI_Init(&argc, &argv);
+
+ double *a = malloc(sizeof(double) * M);
+ double *b = malloc(sizeof(double) * N);
+
+ // A broadcast
+ err = MPI_Bcast(a, M, MPI_DOUBLE, 0, MPI_COMM_WORLD);
+ if (err != MPI_SUCCESS) {
+ perror("Error Bcast A\n"); MPI_Finalize(); exit(-1);
+ }
+
+// Uncommenting this barrier fixes it!
+// MPI_Barrier(MPI_COMM_WORLD);
+
+ // Another broadcast
+ err = MPI_Bcast(b, N, MPI_DOUBLE, 0, MPI_COMM_WORLD );
+ if (err != MPI_SUCCESS) {
+ perror("Error Bcast B\n"); MPI_Finalize(); exit(-1);
+ }
+
+ // Commenting out this barrier fixes it!!
+ MPI_Barrier(MPI_COMM_WORLD);
+
+ MPI_Finalize();
+ free(a);
+ free(b);
+ return 0;
+}
