ovni/test/rt/nosv/barrier.c

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2024-03-15 19:54:37 +01:00
/* Copyright (c) 2024 Barcelona Supercomputing Center (BSC)
* SPDX-License-Identifier: GPL-3.0-or-later */
#define _DEFAULT_SOURCE
#include <nosv.h>
#include <nosv/affinity.h>
#include <stdatomic.h>
#include <unistd.h>
#include "common.h"
#include "compat.h"
#define NTASKS 200
atomic_int ncompleted = 0;
nosv_task_t tasks[NTASKS];
nosv_barrier_t barrier;
static void
task_body(nosv_task_t task)
{
UNUSED(task);
if (nosv_barrier_wait(barrier) != 0)
die("nosv_barrier_wait failed");
}
static void
task_done(nosv_task_t task)
{
UNUSED(task);
atomic_fetch_add(&ncompleted, 1);
}
int
main(void)
{
nosv_init();
nosv_task_type_t task_type;
nosv_type_init(&task_type, task_body, NULL, task_done, "task", NULL, NULL, 0);
if (nosv_barrier_init(&barrier, NOSV_BARRIER_NONE, NTASKS) != 0)
die("nosv_barrier_init failed");
for (int i = 0; i < NTASKS; i++)
nosv_create(&tasks[i], task_type, 0, 0);
for (int i = 0; i < NTASKS; i++)
nosv_submit(tasks[i], 0);
while (atomic_load(&ncompleted) != NTASKS)
sleep_us(1000);
for (int i = 0; i < NTASKS; i++)
nosv_destroy(tasks[i], 0);
if (nosv_barrier_destroy(barrier) != 0)
die("nosv_barrier_destroy failed");
nosv_type_destroy(task_type, 0);
nosv_shutdown();
return 0;
}