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/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 2015 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.
*/
/*
* for i from 0 to nbA
* insert task handles[i] in STARPU_RW|STARPU_COMMUTE
* for j from 0 to nbA
* if i != j
insert task handles[i] in STARPU_RW|STARPU_COMMUTE, and handles[j] in STARPU_RW|STARPU_COMMUTE
*/
// @FUSE_STARPU
#include <starpu.h>
#include "../helper.h"
#include <vector>
#include <unistd.h>
#ifdef STARPU_QUICK_CHECK
#define SLEEP_SLOW 6000
#define SLEEP_FAST 1000
#elif !defined(STARPU_LONG_CHECK)
#define SLEEP_SLOW 60000
#define SLEEP_FAST 10000
#else
#define SLEEP_SLOW 600000
#define SLEEP_FAST 100000
#endif
static unsigned nb, nb_slow;
void callback(void * /*buffers*/[], void * /*cl_arg*/)
{
unsigned val;
val = STARPU_ATOMIC_ADD(&nb, 1);
FPRINTF(stdout,"callback in (%d)\n", val); fflush(stdout);
usleep(SLEEP_FAST);
val = STARPU_ATOMIC_ADD(&nb, -1);
FPRINTF(stdout,"callback out (%d)\n", val); fflush(stdout);
}
void callback_slow(void * /*buffers*/[], void * /*cl_arg*/)
{
unsigned val;
val = STARPU_ATOMIC_ADD(&nb_slow, 1);
FPRINTF(stdout,"callback_slow in (%d)\n", val); fflush(stdout);
usleep(SLEEP_SLOW);
val = STARPU_ATOMIC_ADD(&nb_slow, -1);
FPRINTF(stdout,"callback_slow out (%d)\n", val); fflush(stdout);
}
int main(int /*argc*/, char** /*argv*/)
{
int ret;
struct starpu_conf conf;
starpu_arbiter_t arbiter, arbiter2;
ret = starpu_conf_init(&conf);
STARPU_ASSERT(ret == 0);
//conf.ncpus = 1;//// 4
ret = starpu_init(&conf);
if (ret == -ENODEV) return STARPU_TEST_SKIPPED;
STARPU_ASSERT(ret == 0);
FPRINTF(stdout, "Max Thread %d\n", starpu_worker_get_count());
//////////////////////////////////////////////////////
starpu_codelet normalCodelete;
{
memset(&normalCodelete, 0, sizeof(normalCodelete));
normalCodelete.where = STARPU_CPU;
normalCodelete.cpu_funcs[0] = callback;
normalCodelete.nbuffers = 2;
normalCodelete.modes[0] = starpu_data_access_mode(STARPU_RW|STARPU_COMMUTE);
normalCodelete.modes[1] = starpu_data_access_mode(STARPU_RW|STARPU_COMMUTE);
normalCodelete.name = "normalCodelete";
}
starpu_codelet slowCodelete;
{
memset(&slowCodelete, 0, sizeof(slowCodelete));
slowCodelete.where = STARPU_CPU;
slowCodelete.cpu_funcs[0] = callback_slow;
slowCodelete.nbuffers = 1;
slowCodelete.modes[0] = starpu_data_access_mode (STARPU_RW|STARPU_COMMUTE);
slowCodelete.name = "slowCodelete";
}
//////////////////////////////////////////////////////
//////////////////////////////////////////////////////
///const int nbA = 3;
const int nbA = 10;
FPRINTF(stdout, "Nb A = %d\n", nbA);
std::vector<starpu_data_handle_t> handleA(nbA);
std::vector<int> dataA(nbA);
arbiter = starpu_arbiter_create();
arbiter2 = starpu_arbiter_create();
for(int idx = 0 ; idx < nbA ; ++idx)
{
dataA[idx] = idx;
}
for(int idxHandle = 0 ; idxHandle < nbA ; ++idxHandle)
{
starpu_variable_data_register(&handleA[idxHandle], 0, (uintptr_t)&dataA[idxHandle], sizeof(dataA[idxHandle]));
starpu_data_assign_arbiter(handleA[idxHandle], arbiter);
}
//////////////////////////////////////////////////////
//////////////////////////////////////////////////////
FPRINTF(stdout,"Submit tasks\n");
for(int idxHandleA1 = 0 ; idxHandleA1 < nbA ; ++idxHandleA1)
{
ret = starpu_task_insert(&slowCodelete,
(STARPU_RW|STARPU_COMMUTE), handleA[idxHandleA1],
0);
if (ret == -ENODEV) goto out;
for(int idxHandleA2 = 0 ; idxHandleA2 < nbA ; ++idxHandleA2)
{
if(idxHandleA1 != idxHandleA2)
{
ret = starpu_task_insert(&normalCodelete,
(STARPU_RW|STARPU_COMMUTE), handleA[idxHandleA1],
(STARPU_RW|STARPU_COMMUTE), handleA[idxHandleA2],
0);
if (ret == -ENODEV) goto out;
}
}
}
//////////////////////////////////////////////////////
FPRINTF(stdout,"Wait task\n");
starpu_task_wait_for_all();
//////////////////////////////////////////////////////
FPRINTF(stdout,"Release data\n");
for(int idxHandle = 0 ; idxHandle < nbA ; ++idxHandle)
{
starpu_data_unregister(handleA[idxHandle]);
}
//////////////////////////////////////////////////////
FPRINTF(stdout,"Proceed gain, with several arbiters\n");
for(int idxHandle = 0 ; idxHandle < nbA ; ++idxHandle)
{
starpu_variable_data_register(&handleA[idxHandle], 0, (uintptr_t)&dataA[idxHandle], sizeof(dataA[idxHandle]));
starpu_data_assign_arbiter(handleA[idxHandle], idxHandle%2?arbiter:arbiter2);
}
//////////////////////////////////////////////////////
//////////////////////////////////////////////////////
FPRINTF(stdout,"Submit tasks\n");
for(int idxHandleA1 = 0 ; idxHandleA1 < nbA ; ++idxHandleA1)
{
ret = starpu_task_insert(&slowCodelete,
(STARPU_RW|STARPU_COMMUTE), handleA[idxHandleA1],
0);
if (ret == -ENODEV) goto out;
for(int idxHandleA2 = 0 ; idxHandleA2 < nbA ; ++idxHandleA2)
{
if(idxHandleA1 != idxHandleA2)
{
ret = starpu_task_insert(&normalCodelete,
(STARPU_RW|STARPU_COMMUTE), handleA[idxHandleA1],
(STARPU_RW|STARPU_COMMUTE), handleA[idxHandleA2],
0);
if (ret == -ENODEV) goto out;
}
}
}
//////////////////////////////////////////////////////
FPRINTF(stdout,"Wait task\n");
out:
starpu_task_wait_for_all();
//////////////////////////////////////////////////////
FPRINTF(stdout,"Release data\n");
for(int idxHandle = 0 ; idxHandle < nbA ; ++idxHandle)
{
starpu_data_unregister(handleA[idxHandle]);
}
starpu_arbiter_destroy(arbiter);
starpu_arbiter_destroy(arbiter2);
//////////////////////////////////////////////////////
FPRINTF(stdout,"Shutdown\n");
starpu_shutdown();
return 0;
}
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