#include "mpi.h"
#include "stdio.h"

int main(int argc, char *argv[]) 
{
  int numprocs, myrank; 
  MPI_Init(&argc,&argv);
  MPI_Comm_size( MPI_COMM_WORLD, &numprocs );
  MPI_Comm_rank( MPI_COMM_WORLD, &myrank );
  printf("Hello world! I'm node %d of %d allocated nodes \n", myrank, numprocs);
  MPI_Finalize();  
  return 0;
}