helloWorld5.c

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

int main(int argc, char *argv[]) {


  
#pragma omp parallel
  {
#ifdef _OPENMP
  int my_threadNum = omp_get_thread_num();
  int numThreads = omp_get_num_threads();
#else
  int my_threadNum = 0;
  int numThreads = 1;
#endif

  printf("Hello world from thread %d of %d\n",my_threadNum, numThreads);
  }

 return 0;
}