// gcc -std=c99 -fopenmp hello_omp.c -o hello_omp

#include <omp.h> // New header!
#include <stdio.h>

int main(){

     int threads = 100;
     int id = 100;

#pragma omp parallel
     {
	  threads = omp_get_num_threads();
	  id = omp_get_thread_num();
	  printf("Hello from thread %d of %d\n",id,threads);
     }

     return 0;
}