ovni/test/rt/nosv/parallel-tasks.c
Rodrigo Arias Mallo 3e5b949c4e Add nOS-V RT parallel task tests
The runtime tests check that we can submit and inline task (which must
emit a pause event before the nested task begins) and that we can run
parallel tasks.
2024-03-13 17:44:13 +01:00

66 lines
1.2 KiB
C

/* Copyright (c) 2023 Barcelona Supercomputing Center (BSC)
* SPDX-License-Identifier: GPL-3.0-or-later */
#include <nosv.h>
#include <nosv/affinity.h>
#include <stdatomic.h>
#include <unistd.h>
#include "compat.h"
#include "common.h"
#define NTASKS 200
#define DEGREE 100
atomic_int nr_completed_tasks;
nosv_task_t tasks[NTASKS];
nosv_task_t main_task;
static void
task_run(nosv_task_t task)
{
UNUSED(task);
sleep_us(5);
}
static void
task_comp(nosv_task_t task)
{
UNUSED(task);
int total = atomic_fetch_add(&nr_completed_tasks, 1);
if (total == NTASKS - 1) {
nosv_submit(main_task, NOSV_SUBMIT_UNLOCKED);
}
}
int
main(void)
{
nosv_init();
nosv_attach(&main_task, NULL, NULL, NOSV_ATTACH_NONE);
nosv_task_type_t task_type;
nosv_type_init(&task_type, task_run, NULL, task_comp, "task", NULL, NULL, NOSV_TYPE_INIT_NONE);
for (int t = 0; t < NTASKS; t++) {
nosv_create(&tasks[t], task_type, 0, NOSV_CREATE_PARALLEL);
nosv_set_task_degree(tasks[t], DEGREE);
nosv_submit(tasks[t], NOSV_SUBMIT_NONE);
}
nosv_pause(NOSV_PAUSE_NONE);
for (int t = 0; t < NTASKS; t++)
nosv_destroy(tasks[t], NOSV_DESTROY_NONE);
nosv_detach(NOSV_DETACH_NONE);
nosv_type_destroy(task_type, NOSV_TYPE_DESTROY_NONE);
nosv_shutdown();
return 0;
}