Brandon Potter
145 строки
4.0 KiB
C++
145 строки
4.0 KiB
C++
/*
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* Copyright 2011 Sandia Corporation. Under the terms of Contract
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* DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government
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* retains certain rights in this software.
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*
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* Copyright (c) 2017 Intel Corporation. All rights reserved.
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* This software is available to you under the BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* broadcast [0...num_pes]
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*
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* usage: bcast {-v|h}
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*
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* Loop - roc_shmem_broadcast_all() with increasing data amount.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <roc_shmem/roc_shmem.hpp>
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using namespace rocshmem;
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#define START_BCAST_SIZE 16
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#define BCAST_INCR 1024
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int main(int argc, char *argv[]) {
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int i, Verbose = 0;
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int mpe, num_pes, loops = 10, cloop;
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char *pgm;
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long *dst, *src;
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int nBytes = START_BCAST_SIZE;
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int nLongs = 0;
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long *pSync;
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roc_shmem_init();
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mpe = roc_shmem_my_pe();
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num_pes = roc_shmem_n_pes();
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if (num_pes == 1) {
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printf("%s: Requires number of PEs > 1\n", argv[0]);
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roc_shmem_finalize();
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return 0;
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}
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if (sizeof(long) != 8) {
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printf("Test assumes 64-bit long (%zd)\n", sizeof(long));
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roc_shmem_global_exit(1);
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return 0;
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}
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if ((pgm = strrchr(argv[0], '/'))) {
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pgm++;
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} else {
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pgm = argv[0];
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}
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if (argc > 1) {
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if (strncmp(argv[1], "-v", 3) == 0) {
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Verbose = 1;
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} else if (strncmp(argv[1], "-h", 3) == 0) {
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fprintf(stderr, "usage: %s {-v(verbose)|h(help)}\n", pgm);
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roc_shmem_finalize();
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exit(1);
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}
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}
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pSync = (long *)roc_shmem_malloc(ROC_SHMEM_BCAST_SYNC_SIZE);
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for (i = 0; i < ROC_SHMEM_BCAST_SYNC_SIZE; i += 1) {
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pSync[i] = ROC_SHMEM_SYNC_VALUE;
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}
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if (mpe == 0 && Verbose) {
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fprintf(stderr, "%d loops\n", loops);
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}
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for (cloop = 1; cloop <= loops; cloop++) {
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nLongs = nBytes / sizeof(long);
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dst = (long *)roc_shmem_malloc(nBytes * 2);
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if (!dst) {
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fprintf(stderr, "[%d] roc_shmem_malloc(%d) failed %s\n", mpe, nBytes,
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strerror(errno));
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return 0;
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}
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memset((void *)dst, 0, nBytes);
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src = &dst[nLongs];
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for (i = 1; i < nLongs; i++) {
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src[i] = i + 1;
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}
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roc_shmem_barrier_all();
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roc_shmem_ctx_long_broadcast(ROC_SHMEM_CTX_DEFAULT, dst, src, nLongs, 1, 0,
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0, num_pes, pSync);
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for (i = 0; i < nLongs; i++) {
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/* the root node shouldn't have the result into dst (cf specification).*/
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if (1 != mpe && dst[i] != src[i]) {
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fprintf(stderr, "[%d] dst[%d] %ld != expected %ld\n", mpe, i, dst[i],
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src[i]);
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roc_shmem_global_exit(1);
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} else if (1 == mpe && dst[i] != 0) {
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fprintf(stderr, "[%d] dst[%d] %ld != expected 0\n", mpe, i, dst[i]);
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roc_shmem_global_exit(1);
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}
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}
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roc_shmem_barrier_all();
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roc_shmem_free(dst);
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if (Verbose && mpe == 0)
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fprintf(stderr, "loop %2d Bcast %d, Done.\n", cloop, nBytes);
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nBytes += BCAST_INCR;
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}
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roc_shmem_finalize();
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return 0;
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}
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