#include <stdlib.h>
#include <stdio.h>
#include "mpi.h"

int main( int argc, char *argv[]) 
{
    int my_rank, numprocs;
    int dest, tag, source;
    MPI_Status status;

    MPI_Init(&argc,&argv);
    MPI_Comm_rank(MPI_COMM_WORLD,&my_rank);
    MPI_Comm_size(MPI_COMM_WORLD,&numprocs);

    printf("Hello world from process %d\n",my_rank);

    MPI_Finalize();
    return 0;
}