// Try compile with:
//
//     gcc -o hello1  openMP01.c                (No parallel effect)
//     gcc -o hello2  -fopenmp openMP01.c       (Parallel effect)
//
// export OMP_NUM_THREADS=8


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


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

   #pragma omp parallel num_threads(6)   

// Default: use environment variable OMP_NUM_THREADS
// #pragma omp parallel

   { 
      /* -----------------------------------------------
	 Code block execued by parallel threads....
	 Every thread does this
	 ----------------------------------------------- */
      printf("Hello World !!!\n");
   } 

   return 0; 
}