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

#define THREADS 8

/* the function called for each thread */
void worker() {
    /* get our thread id */
    int id = omp_get_thread_num();

    /* we start to work */
    printf("Thread %d starting!\n", id);

    /* simulate the threads taking slightly different amounts of time by sleeping
     * for our thread id seconds */
    sleep(id);
    printf("Thread %d is done its work!\n", id);


    /* a barrier */
#pragma omp barrier


    printf("Thread %d is past the barrier!\n", id); 
}

int main() {
    /* have all the threads run worker */
# pragma omp parallel num_threads(THREADS)
    worker();

    return 0;
}