+++ /dev/null
-/* -*- Mode: C; -*- */
-/* Creator: Bronis R. de Supinski (bronis@llnl.gov) Thu Nov 30 2000 */
-/* persistent3.c -- do some MPI persistent calls */
-/* including freeing an active request - the effect of which */
-/* is implementation dependent - usually a detected error */
-/* in this test, the error is made in only task rank 0... */
-
-#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_Request aReq[2], free_req;
- MPI_Status aStatus[2];
-
- MPI_Status status;
-
- /* 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);
-
- if (nprocs < 2) {
- printf ("not enough tasks\n");
- }
- else {
- if (rank == 0) {
- memset (buf0, 0, buf_size);
-
- MPI_Send_init (buf0, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD, &aReq[0]);
- MPI_Recv_init (buf1, buf_size, MPI_INT, 1, 0, MPI_COMM_WORLD, &aReq[1]);
-
- MPI_Start (&aReq[0]);
- MPI_Start (&aReq[1]);
-
- MPI_Waitall (2, aReq, aStatus);
-
- memset (buf0, 1, buf_size);
-
- MPI_Startall (2, aReq);
-
- /* free an active request... */
- free_req = aReq[1];
- MPI_Request_free (&free_req);
-
- MPI_Waitall (2, aReq, aStatus);
- }
- else if (rank == 1) {
- memset (buf1, 1, buf_size);
-
- MPI_Recv_init (buf0, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD, &aReq[0]);
- MPI_Send_init (buf1, buf_size, MPI_INT, 0, 0, MPI_COMM_WORLD, &aReq[1]);
-
- MPI_Start (&aReq[0]);
- MPI_Start (&aReq[1]);
-
- MPI_Waitall (2, aReq, aStatus);
-
- memset (buf1, 0, buf_size);
-
- MPI_Startall (2, aReq);
-
- MPI_Waitall (2, aReq, aStatus);
- }
- }
-
- MPI_Barrier (MPI_COMM_WORLD);
-
- MPI_Request_free (&aReq[0]);
-
- MPI_Finalize ();
- printf ("(%d) Finished normally\n", rank);
-}
-
-/* EOF */