Thread: MPI in C

I'm not sure how many ppl know about mpi, but ill ask anyway...

Ive written a piece of code below where im receiving messages from the master processor ie. 0, and i want to stop receiving when i get the stoprecievemsg. Its pretty simple and it works but is there a way to speed this up? I think my program is lagging because of the way im recieving

Code:

/* Retrieve a digit from master */
       	MPI_Recv(&token, 1, MPI_INT, 0, DEFAULT_TAG, MPI_COMM_WORLD, &status);

		/* Until we recieve a stop msg, keep recieving and summing the recieved digits */
		while (token != stopRecieveMsg) {
			
			recieveSum = recieveSum + token;	
       		MPI_Recv(&token, 1, MPI_INT, 0, DEFAULT_TAG, MPI_COMM_WORLD, &status);
		}