+++ /dev/null
-/* -*- Mode: C; -*- */
-/* Creator: Jeffrey Vetter (j-vetter@llnl.gov) Mon Nov 1 1999 */
-/* lost-request.c -- overwrite a request and essentially lose a synch point */
-
-#ifndef lint
-static char *rcsid =
- "$Header: /usr/gapps/asde/cvs-vault/umpire/tests/no-error-persistent-all-completions.c,v 1.1 2002/01/14 18:58:06 bronis Exp $";
-#endif
-
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-#include "mpi.h"
-
-#define BUF_SIZE 128
-#define NUM_COMPLETION_MECHANISMS 8
-
-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;
- int buf[BUF_SIZE * 2];
- int i, j, k, index, outcount, flag;
- int indices[2];
- MPI_Request aReq[2];
- MPI_Status aStatus[2];
-
- /* 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);
-
- if (rank == 0) {
- /* set up persistent sends... */
- MPI_Send_init (&buf[0], BUF_SIZE, MPI_INT, 1, 0, comm, &aReq[0]);
- MPI_Send_init (&buf[BUF_SIZE], BUF_SIZE, MPI_INT, 1, 1, comm, &aReq[1]);
-
- /* initialize the send buffers */
- for (i = 0; i < BUF_SIZE; i++) {
- buf[i] = i;
- buf[BUF_SIZE + i] = BUF_SIZE - 1 - i;
- }
- }
-
- for (k = 0; k < (NUM_COMPLETION_MECHANISMS * 2); k++) {
- if (rank == 1) {
- /* zero out the receive buffers */
- bzero (buf, sizeof(int) * BUF_SIZE * 2);
- }
-
- MPI_Barrier(MPI_COMM_WORLD);
-
- if (rank == 0) {
- /* start the persistent sends... */
- if (k % 2) {
- MPI_Startall (2, &aReq[0]);
- }
- else {
- for (j = 0; j < 2; j++) {
- MPI_Start (&aReq[j]);
- }
- }
-
- /* complete the sends */
- switch (k/2) {
- case 0:
- /* use MPI_Wait */
- for (j = 0; j < 2; j++) {
- MPI_Wait (&aReq[j], &aStatus[j]);
- }
- break;
-
- case 1:
- /* use MPI_Waitall */
- MPI_Waitall (2, aReq, aStatus);
- break;
-
- case 2:
- /* use MPI_Waitany */
- for (j = 0; j < 2; j++) {
- MPI_Waitany (2, aReq, &index, aStatus);
- }
- break;
-
- case 3:
- /* use MPI_Waitsome */
- j = 0;
- while (j < 2) {
- MPI_Waitsome (2, aReq, &outcount, indices, aStatus);
- j += outcount;
- }
- break;
-
- case 4:
- /* use MPI_Test */
- for (j = 0; j < 2; j++) {
- flag = 0;
- while (!flag) {
- MPI_Test (&aReq[j], &flag, &aStatus[j]);
- }
- }
- break;
-
- case 5:
- /* use MPI_Testall */
- flag = 0;
- while (!flag) {
- MPI_Testall (2, aReq, &flag, aStatus);
- }
- break;
-
- case 6:
- /* use MPI_Testany */
- for (j = 0; j < 2; j++) {
- flag = 0;
- while (!flag) {
- MPI_Testany (2, aReq, &index, &flag, aStatus);
- }
- }
- break;
-
- case 7:
- /* use MPI_Testsome */
- j = 0;
- while (j < 2) {
- outcount = 0;
- while (!outcount) {
- MPI_Testsome (2, aReq, &outcount, indices, aStatus);
- }
- j += outcount;
- }
- break;
-
- default:
- assert (0);
- break;
- }
- }
- else if (rank == 1) {
- /* set up receives for all of the sends */
- for (j = 0; j < 2; j++) {
- MPI_Irecv (&buf[j * BUF_SIZE], BUF_SIZE,
- MPI_INT, 0, j, comm, &aReq[j]);
- }
- /* complete all of the receives... */
- MPI_Waitall (2, aReq, aStatus);
- }
- }
-
- MPI_Barrier(MPI_COMM_WORLD);
-
- if (rank == 0) {
- /* free the persistent requests */
- for (i = 0 ; i < 2; i++) {
- MPI_Request_free (&aReq[i]);
- }
- }
-
- MPI_Finalize ();
- printf ("(%d) Finished normally\n", rank);
-}
-
-/* EOF */
