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

int
main (void)
{
  int th_id;
  int nthreads;

  #pragma omp parallel private(th_id)
  {
    th_id = omp_get_thread_num ();
    printf ("Hello World from thread %d\n", th_id);

    #pragma omp barrier
    if (th_id == 0)
      {
	nthreads = omp_get_num_threads ();
	printf ("There are %d threads\n", nthreads);
      }
  }
  return EXIT_SUCCESS;
}