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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* (C) 2001 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include <stdio.h>
#include "mpi.h"
int main(int argc, char **argv)
{
int rc, flag, vval, size;
void *v;
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &size);
rc = MPI_Attr_get(MPI_COMM_WORLD, MPI_UNIVERSE_SIZE, &v, &flag);
if (rc) {
fprintf(stderr, "MPI_UNIVERSE_SIZE missing\n");
MPI_Abort(MPI_COMM_WORLD, 1);
}
else {
/* MPI_UNIVERSE_SIZE need not be set */
if (flag) {
vval = *(int *) v;
if (vval < 5) {
fprintf(stderr, "MPI_UNIVERSE_SIZE = %d, less than expected (%d)\n", vval,
size);
MPI_Abort(MPI_COMM_WORLD, 1);
}
}
}
MPI_Finalize();
printf(" No errors\n");
return 0;
}
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