/* -*- 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;

}