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/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 2011, 2012 Centre National de la Recherche Scientifique
*
* 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.
*/
#include <starpu_mpi.h>
#include <starpu_mpi_datatype.h>
#include <math.h>
#include "helper.h"
void func_cpu(void *descr[], __attribute__ ((unused)) void *_args)
{
int *x0 = (int *)STARPU_VARIABLE_GET_PTR(descr[0]);
int *x1 = (int *)STARPU_VARIABLE_GET_PTR(descr[1]);
*x0 += 1;
*x1 *= *x1;
}
struct starpu_codelet mycodelet =
{
.where = STARPU_CPU,
.cpu_funcs = {func_cpu, NULL},
.nbuffers = 2,
.modes = {STARPU_RW, STARPU_RW}
};
int main(int argc, char **argv)
{
int rank, size, err;
int x[2];
int ret, i;
starpu_data_handle_t data_handles[2];
int values[2];
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_initialize_extended(&rank, &size);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_initialize_extended");
if (rank == 0)
{
x[0] = 11;
starpu_variable_data_register(&data_handles[0], 0, (uintptr_t)&x[0], sizeof(x[0]));
starpu_variable_data_register(&data_handles[1], -1, (uintptr_t)NULL, sizeof(x[1]));
}
else if (rank == 1)
{
x[1] = 12;
starpu_variable_data_register(&data_handles[0], -1, (uintptr_t)NULL, sizeof(x[0]));
starpu_variable_data_register(&data_handles[1], 0, (uintptr_t)&x[1], sizeof(x[1]));
}
else
{
starpu_variable_data_register(&data_handles[0], -1, (uintptr_t)NULL, sizeof(x[0]));
starpu_variable_data_register(&data_handles[1], -1, (uintptr_t)NULL, sizeof(x[1]));
}
starpu_data_set_rank(data_handles[0], 0);
starpu_data_set_tag(data_handles[0], 0);
starpu_data_set_rank(data_handles[1], 1);
starpu_data_set_tag(data_handles[1], 1);
err = starpu_mpi_insert_task(MPI_COMM_WORLD, &mycodelet,
STARPU_RW, data_handles[0], STARPU_RW, data_handles[1],
STARPU_EXECUTE_ON_DATA, data_handles[1],
0);
assert(err == 0);
starpu_task_wait_for_all();
for(i=0 ; i<2 ; i++)
{
starpu_mpi_get_data_on_node_detached(MPI_COMM_WORLD, data_handles[i], 0, NULL, NULL);
if (rank == 0) {
starpu_data_acquire(data_handles[i], STARPU_R);
values[i] = *((int *)starpu_mpi_handle_to_ptr(data_handles[i]));
}
}
FPRINTF(stderr, "[%d][local ptr] VALUES: %d %d\n", rank, values[0], values[1]);
ret = 0;
if (rank == 0 && (values[0] != 12 || values[1] != 144))
ret = EXIT_FAILURE;
starpu_mpi_shutdown();
starpu_shutdown();
return ret;
}
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