kupl_in_parallel

Check whether the current thread is in the parallel domain.

Interface Definition

bool kupl_in_parallel();

Return Value

true: in the parallel domain
false: not in the parallel domain

Examples

#include <stdio.h>
#include <assert.h>
#include "kupl.h"

static void task_int_parallel(kupl_nd_range_t *nd_range, void *args, int tid, int tnum)
{
    bool in_parallel = kupl_in_parallel();
    assert(in_parallel == true);
}

int main()
{
    kupl_parallel_for_desc_t desc = {
        .field_mask = KUPL_PARALLEL_FOR_DESC_FIELD_DEFAULT,
        .range = nullptr,
        .egroup = nullptr,
        .concurrency = 4,
        .policy = KUPL_LOOP_POLICY_STATIC
    };
    kupl_parallel_for(&desc, task_int_parallel, nullptr);
}

The preceding example demonstrates the process of enabling the parallel domain and checking whether the current thread is in the parallel domain.
The kupl_in_parallel function is called within the parallel domain, so true is returned.

Parent topic: Multi-threaded Programming Functions