#include <stdio.h>
#include <unistd.h>
#include <limits.h>
#include "mpi.h"
int main(int argc, char** argv) {
  int me, nproc;                
  char hostname[PATH_MAX];  
  MPI_Init(&argc, &argv);
  MPI_Comm_rank(MPI_COMM_WORLD, &me);
  MPI_Comm_size(MPI_COMM_WORLD, &nproc);
  if(gethostname(hostname, PATH_MAX) == 0){
    printf("I'm clone %d out of %d total located @ %s\n", 
           me, nproc, hostname);
    } else {
      printf("I'm a lost clone %d out of %d total!\n", 
             me, nproc);
    }
  MPI_Finalize();
  return 0;
}