// Compile with:
//
//    gcc -fopenmp hello.c

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


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

   /* make the values of nthreads and myid private to each thread */ 

#pragma omp parallel private (nthreads, myid) 
   { 
      /* ------------------------------
	 Every thread does this
	 ------------------------------ */
      myid = omp_get_thread_num(); 

      printf("Hello I am thread %d\n", myid);

      /* ------------------------------
	 Only thread 0 does this
	 ------------------------------ */
      if (myid == 0) 
      { 
         nthreads = omp_get_num_threads(); 
         printf("Number of threads = %d\n", nthreads);
      } 

   } 
   return 0; 
}