+++ /dev/null
-/* -*- Mode: C; -*- */
-/* Creator: Bronis R. de Supinski (bronis@llnl.gov) Fri Mar 17 2000 */
-/* no-error.c -- do some MPI calls without any errors */
-
-#include <stdio.h>
-#include "mpi.h"
-
-#define buf_size 128
-
-int
-main (int argc, char **argv)
-{
- int nprocs = -1;
- int rank = -1;
- char processor_name[128];
- int namelen = 128;
- int buf0[buf_size];
- int buf1[buf_size];
- MPI_Status statuses[2];
- MPI_Request reqs[2];
-
- /* init */
- MPI_Init (&argc, &argv);
- MPI_Comm_size (MPI_COMM_WORLD, &nprocs);
- MPI_Comm_rank (MPI_COMM_WORLD, &rank);
- MPI_Get_processor_name (processor_name, &namelen);
- printf ("(%d) is alive on %s\n", rank, processor_name);
- fflush (stdout);
-
- MPI_Barrier (MPI_COMM_WORLD);
-
- /* this code is very similar to no-error-waitall-any_src.c */
- /* but deadlocks since task 2's send and recv are inverted... */
- if (nprocs < 3)
- {
- printf ("not enough tasks\n");
- }
- else if (rank == 0)
- {
- MPI_Irecv (buf0, buf_size, MPI_INT,
- MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &reqs[0]);
-
- MPI_Irecv (buf1, buf_size, MPI_INT,
- MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &reqs[1]);
-
- MPI_Waitall (2, reqs, statuses);
-
- MPI_Send (buf1, buf_size, MPI_INT, 1, 1, MPI_COMM_WORLD);
- }
- else if (rank == 1)
- {
- memset (buf0, 0, buf_size);
-
- MPI_Isend (buf0, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD, &reqs[0]);
-
- MPI_Isend (buf0, buf_size, MPI_INT, 2, 1, MPI_COMM_WORLD, &reqs[1]);
-
- MPI_Waitall (2, reqs, statuses);
-
- MPI_Send (buf0, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD);
-
- MPI_Recv (buf1, buf_size, MPI_INT, 0, 1, MPI_COMM_WORLD, statuses);
- }
- else if (rank == 2)
- {
- MPI_Recv (buf1, buf_size, MPI_INT, 1, 1, MPI_COMM_WORLD, statuses);
- }
-
- MPI_Barrier (MPI_COMM_WORLD);
-
- MPI_Finalize ();
- printf ("(%d) Finished normally\n", rank);
-}
-
-/* EOF */