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/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 2013, 2014 CNRS
*
* 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.h>
#define FPRINTF(ofile, fmt, ...) do { if (!getenv("STARPU_SSILENT")) {fprintf(ofile, fmt, ## __VA_ARGS__); }} while(0)
void dummy_small_kernel(void *descr[], void *cl_arg)
{
int nb_data;
int i;
starpu_codelet_unpack_args(cl_arg, &nb_data);
assert(nb_data == 1);
FPRINTF(stderr, "Number of data: %d\n", nb_data);
for(i=0 ; i<nb_data; i++)
{
int *val = (int *)STARPU_VARIABLE_GET_PTR(descr[i]);
assert(*val == 42);
}
}
void dummy_big_kernel(void *descr[], void *cl_arg)
{
int nb_data;
int i;
starpu_codelet_unpack_args(cl_arg, &nb_data);
assert(nb_data == 9);
FPRINTF(stderr, "Number of data: %d\n", nb_data);
for(i=0 ; i<nb_data; i++)
{
int *val = (int *)STARPU_VARIABLE_GET_PTR(descr[i]);
assert(*val == 42);
}
}
static struct starpu_codelet dummy_small_cl =
{
.cpu_funcs = {dummy_small_kernel},
.cpu_funcs_name = {"dummy_small_kernel"},
.modes = {STARPU_RW},
.nbuffers = 1
};
struct starpu_codelet dummy_big_cl =
{
.cpu_funcs = {dummy_big_kernel},
.cpu_funcs_name = {"dummy_big_kernel"},
.nbuffers = STARPU_NMAXBUFS+1
};
int main(int argc, char **argv)
{
starpu_data_handle_t handle;
struct starpu_data_descr *descrs;
int ret;
int val=42;
int i;
struct starpu_task *task, *task2;
ret = starpu_init(NULL);
if (ret == -ENODEV) return 77;
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
starpu_variable_data_register(&handle, STARPU_MAIN_RAM, (uintptr_t)&val, sizeof(int));
task = starpu_task_create();
task->synchronous = 1;
task->cl = &dummy_small_cl;
starpu_codelet_pack_args(&task->cl_arg, &task->cl_arg_size,
STARPU_VALUE, &(task->cl->nbuffers), sizeof(task->cl->nbuffers),
0);
task->dyn_handles = malloc(sizeof(*task->dyn_handles));
task->dyn_handles[0] = handle;
task->cl_arg_free = 1;
ret = starpu_task_submit(task);
if (ret == -ENODEV) goto enodev;
STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_submit");
task2 = starpu_task_create();
task2->synchronous = 1;
task2->cl = &dummy_big_cl;
task2->cl_arg_free = 1;
starpu_codelet_pack_args(&task2->cl_arg, &task2->cl_arg_size,
STARPU_VALUE, &(task2->cl->nbuffers), sizeof(task2->cl->nbuffers),
0);
task2->dyn_handles = malloc(task2->cl->nbuffers * sizeof(*(task2->dyn_handles)));
task2->dyn_modes = malloc(task2->cl->nbuffers * sizeof(*(task2->dyn_modes)));
for(i=0 ; i<task2->cl->nbuffers ; i++)
{
task2->dyn_handles[i] = handle;
task2->dyn_modes[i] = STARPU_RW;
}
ret = starpu_task_submit(task2);
if (ret == -ENODEV) goto enodev;
STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_submit");
ret = starpu_task_insert(&dummy_small_cl,
STARPU_VALUE, &(dummy_small_cl.nbuffers), sizeof(dummy_small_cl.nbuffers),
STARPU_RW, handle,
0);
if (ret == -ENODEV) goto enodev;
STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_insert");
ret = starpu_task_wait_for_all();
STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_wait_for_all");
descrs = malloc(dummy_big_cl.nbuffers * sizeof(struct starpu_data_descr));
for(i=0 ; i<dummy_big_cl.nbuffers ; i++)
{
descrs[i].handle = handle;
descrs[i].mode = STARPU_RW;
}
ret = starpu_task_insert(&dummy_big_cl,
STARPU_VALUE, &(dummy_big_cl.nbuffers), sizeof(dummy_big_cl.nbuffers),
STARPU_DATA_MODE_ARRAY, descrs, dummy_big_cl.nbuffers,
0);
if (ret == -ENODEV) goto enodev;
STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_insert");
ret = starpu_task_wait_for_all();
STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_wait_for_all");
free(descrs);
starpu_data_unregister(handle);
starpu_shutdown();
return EXIT_SUCCESS;
enodev:
starpu_data_unregister(handle);
starpu_shutdown();
return 77;
}
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