#include “mpi.h”

main (argc, argv)
int argc;
char **argv;
{
	char message [20];
	int myrank;
	MPI_STATUS status;
	MPI_Init (&argc, &argv);
	MPI_Comm_rank (MPI_COMM_WORLD, &myrank);
	if (myrank==0)
	{
		strcpy(message,”Hello, there!”);
		MPI_Send (message, strlen(message), MPI_CHAR, 1,99, 			MPI_COMM_WORLD);
	}
	else
	{
		MPI_Recv (message, 20, MPI_CHAR, 0,99, 					MPI_COMM_WORLD, &status);
		printf (“received: %s \n”, message);
	}
	MPI_Finalize ();
}