/* File:     mpi_output.c
 *
 * Purpose:  A program in which multiple MPI processes try to print 
 *           a message.
 *
 * Compile:  mpicc -g -Wall -o mpi_output mpi_output.c
 * Usage:    mpiexec -n<number of processes> ./mpi_output
 *
 * Input:    None
 * Output:   A message from each process
 *
 * IPP:      Section 3.3.1  (pp. 97 and ff.)
 */
#include <stdio.h>
#include <mpi.h> 

int main(void) {
   int my_rank, comm_sz;

   MPI_Init(NULL, NULL); 
   MPI_Comm_size(MPI_COMM_WORLD, &comm_sz); 
   MPI_Comm_rank(MPI_COMM_WORLD, &my_rank); 

   printf("Proc %d of %d > Does anyone have a toothpick?\n",
         my_rank, comm_sz);

   MPI_Finalize();
   return 0;
}  /* main */