omp_workers.c

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

int main(int argc, char* argv[])
{
    int i,x,y,z=5;
    printf("Before threads do work:\n");
#pragma omp parallel    num_threads(3) shared(z) private(i,x,y)
    {
        printf(" thread %d is working\n",omp_get_thread_num());
        x=y=1;
        if (omp_get_thread_num()==1) {
            z=10;x=4;
        }
        for ( i=0; i<2; i++) {
            printf(" thread %d is doing more work. x+y+z=%i\n",omp_get_thread_num(),x+y+z);
        }
    }
    printf("After threads do work\n");
    return 0;
}

Two Runs