text: // Copyright 2009-2019 NTESS. Under the terms
  // of Contract DE-NA0003525 with NTESS, the U.S.
  // Government retains certain rights in this software.
  //
  // Copyright (c) 2009-2019, NTESS
  // All rights reserved.
  //
  // Portions are copyright of other developers:
  // See the file CONTRIBUTORS.TXT in the top level directory
  // the distribution for more information.
  //
  // This file is part of the SST software package. For license
  // information, see the LICENSE file in the top level directory of the
  // distribution.
  
  #include <stdio.h>
  #include "mpi.h"
  
  int main(int argc, char* argv[]) {
  
  	MPI_Init(&argc, &argv);
  
  	int rank, npes;
  	MPI_Comm_rank(MPI_COMM_WORLD, &rank);
  	MPI_Comm_size(MPI_COMM_WORLD, &npes);
  
  	MPI_Barrier(MPI_COMM_WORLD);
  
  	if(rank == 0) {
  		printf("Hello World\n");
  	}
  
  	MPI_Barrier(MPI_COMM_WORLD);
  	MPI_Finalize();
  }
  