#include <stdio.h>
#include "mpi.h"
/************************************************************
This is a simple send/receive program in MPI
************************************************************/
int main(argc,argv)
int argc;
char *argv[];
{
    	int myid;
    	int tag,source,destination,count;
    	int buffer;
    	MPI_Status status;
	MPI_Init(&argc,&argv);
	MPI_Comm_rank(MPI_COMM_WORLD,&myid);
	tag=1234;
    	source=0;
    	destination=1;
    	count=1;
    	if(myid == source){
         buffer=5678;
    	 MPI_Send(&buffer,count,MPI_INT,destination,tag,MPI_COMM_WORLD);
         printf("processor %d  sent %d\n",myid,buffer);
   	 }
        if(myid == destination){
 	 MPI_Recv(&buffer,count,MPI_INT,source,tag,MPI_COMM_WORLD,&status);
         printf("processor %d  got %d\n",myid,buffer);
        }
	MPI_Finalize();
}