starpu-max/mpi/examples/benchs/burst.c

/* StarPU --- Runtime system for heterogeneous multicore architectures.
 *
 * Copyright (C) 2020       Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
 *
 * StarPU is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or (at
 * your option) any later version.
 *
 * StarPU is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * See the GNU Lesser General Public License in COPYING.LGPL for more details.
 */

/*
 * This test sends simultaneously many communications, with various configurations.
 *
 * Global purpose is to run with trace recording, to watch the behaviour of communications.
 */

#include <starpu_mpi.h>
#include "helper.h"
#include "burst_helper.h"

void parse_args(int argc, char **argv)
{
	int i;
	for (i = 1; i < argc; i++)
	{
		if (strcmp(argv[i], "-nreqs") == 0)
		{
			burst_nb_requests = atoi(argv[++i]);
		}
		else if (strcmp(argv[i], "-help") == 0 || strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-h") == 0)
		{
			fprintf(stderr,"Usage: %s [-nreqs nreqs]\n", argv[0]);
			fprintf(stderr,"Currently selected: %d requests in each burst\n", burst_nb_requests);
			exit(EXIT_SUCCESS);
		}
		else
		{
			fprintf(stderr,"Unrecognized option %s\n", argv[i]);
			exit(EXIT_FAILURE);
		}
	}
}

int main(int argc, char **argv)
{
	int ret, rank, other_rank;

	parse_args(argc, argv);

	ret = starpu_mpi_init_conf(&argc, &argv, 1, MPI_COMM_WORLD, NULL);
	STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init_conf");

	starpu_mpi_comm_rank(MPI_COMM_WORLD, &rank);

	burst_init_data(rank);

	burst_all(rank);

	/* Clear up */
	burst_free_data(rank);

	starpu_mpi_shutdown();

	return 0;
}