+++ /dev/null
-/* -*- Mode: C; -*- */
-/* Creator: Jeffrey Vetter (vetter3@llnl.gov) Thu Feb 24 2000 */
-
-#ifndef lint
-static char *rcsid =
- "$Header: /usr/gapps/asde/cvs-vault/umpire/tests/comm-simple.c,v 1.2 2000/12/04 19:09:45 bronis Exp $";
-#endif
-
-#include <stdio.h>
-#include <string.h>
-#include "mpi.h"
-
-#define buf_size 128
-
-int
-main (int argc, char **argv)
-{
- int nprocs = -1;
- int rank = -1;
- MPI_Comm comm = MPI_COMM_WORLD;
- char processor_name[128];
- int namelen = 128;
- MPI_Comm newcomm;
-
- /* init */
- MPI_Init (&argc, &argv);
- MPI_Comm_size (comm, &nprocs);
- MPI_Comm_rank (comm, &rank);
- MPI_Get_processor_name (processor_name, &namelen);
- printf ("(%d) is alive on %s\n", rank, processor_name);
- fflush (stdout);
-
- printf ("WARNING: doesn't really deadlock yet! work-in-progress.\n");
-
- MPI_Barrier (comm);
-
- {
- int color = rank % 2;
- int key = 1;
- int nrank;
- int nsize;
- int dat = 0;
-
- MPI_Comm_split (comm, color, key, &newcomm);
-
- MPI_Comm_size (newcomm, &nsize);
- MPI_Comm_rank (newcomm, &nrank);
- printf ("world task %p/%d/%d maps to new comm task %p/%d/%d\n",
- comm, nprocs, rank, newcomm, nsize, nrank);
-
- if (nrank == 0)
- {
- dat = 1000 + color;
- }
-
- MPI_Bcast (&dat, 1, MPI_INT, 0, newcomm);
-
- printf ("world task %p/%d/%d maps to new comm task %p/%d/%d --> %d\n",
- comm, nprocs, rank, newcomm, nsize, nrank, dat);
- }
-
- MPI_Barrier (comm);
-
- printf ("(%d) Finished normally\n", rank);
- MPI_Finalize ();
-}
-
-/* EOF */