/* 

   hellosmp.c 
   
   Fork a number of threads using #pragma omp parallel. Each thread gets
   it thread-id, then prints its thread-id and says hello.
   
 */ 


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



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


  int thread_id; 
  
  //if the number of threads is not set, pragma omp parallel gives the
  //default
  //omp_set_num_threads(4); 
  

  //#pragma omp parallel  private(thread_id) num_threads(4)
#pragma omp parallel  private(thread_id)
  {
    thread_id = omp_get_thread_num(); 
    printf("I am thread %d. Hello world!\n", thread_id); 
 }
  
  return 0; 
}