linux-kernel-module-cheat/kernel_module/user/openmp.c

#include <omp.h>
#include <stdio.h>
#include <stdlib.h>

int main () {
	int nthreads, tid;
#pragma omp parallel private(nthreads, tid)
	{
		tid = omp_get_thread_num();
		printf("Hello World from thread = %d\n", tid);
		if (tid == 0) {
			nthreads = omp_get_num_threads();
			printf("Number of threads = %d\n", nthreads);
		}
	}
	return EXIT_SUCCESS;
}