Shintaro Iwasaki
5ef6367f73
Specifically, this patch makes the following changes. build scripts: - master_top_srcdir -> main_top_srcdir Git: - "master" -> "main" branch (variable names and comments) global structures and variables: - MPIR_ThreadInfo.master_thread -> MPIR_ThreadInfo.main_thread - struct PMIMaster -> struct PMIMain - PMI2_Connect_comm_t.isMaster -> PMI2_Connect_comm_t.isMain names of tests: - spawntest_master -> spawntest_parent - taskmaster -> taskmanager - th_taskmaster -> th_taskmanager` comments and names of temporary/local variables: - master -> main, parent, server, ... - slave -> child, worker, client, ...
137 linhas
4.0 KiB
C
137 linhas
4.0 KiB
C
/*
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* Copyright (C) by Argonne National Laboratory
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* See COPYRIGHT in top-level directory
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*/
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/*
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* Run concurrent sends to different target processes. Stresses an
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* implementation that permits concurrent sends to different targets.
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*
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* By turning on verbose output, some simple performance data will be output.
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*
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* Use nonblocking sends, and have a single thread complete all I/O.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "mpi.h"
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#include "mpitest.h"
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#include "mpithreadtest.h"
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/* This is the main test routine */
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#define MAX_CNT 660000
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/*#define MAX_LOOP 200 */
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#define MAX_LOOP 10
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#define MAX_NTHREAD 128
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static int ownerWaits = 0;
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static int nthreads = -1;
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MTEST_THREAD_RETURN_TYPE run_test_send(void *arg);
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MTEST_THREAD_RETURN_TYPE run_test_send(void *arg)
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{
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int cnt, j, *buf, wsize, tag;
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int thread_num = (int) (long) arg;
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double t;
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static MPI_Request r[MAX_NTHREAD];
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/* Create the buf just once to avoid finding races in malloc instead
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* of the MPI library */
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buf = (int *) malloc(MAX_CNT * sizeof(int));
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MTEST_VG_MEM_INIT(buf, MAX_CNT * sizeof(int));
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MTestPrintfMsg(1, "buf address %p (size %d)\n", buf, MAX_CNT * sizeof(int));
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MPI_Comm_size(MPI_COMM_WORLD, &wsize);
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if (wsize >= MAX_NTHREAD)
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wsize = MAX_NTHREAD;
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/* Sanity check */
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if (nthreads != wsize - 1)
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fprintf(stderr, "Panic wsize = %d nthreads = %d\n", wsize, nthreads);
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for (cnt = 1, tag = 1; cnt < MAX_CNT; cnt = 2 * cnt, tag++) {
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/* Wait for all senders to be ready */
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MTest_thread_barrier(nthreads);
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t = MPI_Wtime();
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for (j = 0; j < MAX_LOOP; j++) {
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MTest_thread_barrier(nthreads);
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MPI_Isend(buf, cnt, MPI_INT, thread_num, tag, MPI_COMM_WORLD, &r[thread_num - 1]);
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if (ownerWaits) {
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MPI_Wait(&r[thread_num - 1], MPI_STATUS_IGNORE);
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} else {
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/* Wait for all threads to start the sends */
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MTest_thread_barrier(nthreads);
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if (thread_num == 1) {
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MPI_Waitall(wsize - 1, r, MPI_STATUSES_IGNORE);
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}
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}
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}
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t = MPI_Wtime() - t;
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if (thread_num == 1)
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MTestPrintfMsg(1, "buf size %d: time %f\n", cnt * sizeof(int), t / MAX_LOOP);
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}
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MTest_thread_barrier(nthreads);
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free(buf);
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return (MTEST_THREAD_RETURN_TYPE) NULL;
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}
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void run_test_recv(void);
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void run_test_recv(void)
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{
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int cnt, j, *buf, tag;
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MPI_Status status;
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double t;
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for (cnt = 1, tag = 1; cnt < MAX_CNT; cnt = 2 * cnt, tag++) {
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buf = (int *) malloc(cnt * sizeof(int));
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MTEST_VG_MEM_INIT(buf, cnt * sizeof(int));
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t = MPI_Wtime();
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for (j = 0; j < MAX_LOOP; j++)
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MPI_Recv(buf, cnt, MPI_INT, 0, tag, MPI_COMM_WORLD, &status);
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t = MPI_Wtime() - t;
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free(buf);
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}
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}
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int main(int argc, char **argv)
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{
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int i, pmode, nprocs, rank;
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int errs = 0, err;
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MTest_Init_thread(&argc, &argv, MPI_THREAD_MULTIPLE, &pmode);
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if (pmode != MPI_THREAD_MULTIPLE) {
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fprintf(stderr, "Thread Multiple not supported by the MPI implementation\n");
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MPI_Abort(MPI_COMM_WORLD, -1);
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}
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MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
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MPI_Comm_rank(MPI_COMM_WORLD, &rank);
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if (nprocs < 2) {
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fprintf(stderr, "Need at least two processes\n");
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MPI_Abort(MPI_COMM_WORLD, 1);
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}
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if (nprocs > MAX_NTHREAD)
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nprocs = MAX_NTHREAD;
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MPI_Barrier(MPI_COMM_WORLD);
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if (rank == 0) {
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err = MTest_thread_barrier_init();
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if (err) {
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fprintf(stderr, "Could not create thread barrier\n");
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MPI_Abort(MPI_COMM_WORLD, 1);
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}
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nthreads = nprocs - 1;
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for (i = 1; i < nprocs; i++)
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MTest_Start_thread(run_test_send, (void *) (long) i);
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MTest_Join_threads();
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MTest_thread_barrier_free();
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} else if (rank < MAX_NTHREAD) {
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run_test_recv();
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}
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MTest_Finalize(errs);
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return MTestReturnValue(errs);
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}
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