hello_mpi.c
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			#include <mpi.h>
			#include <stdio.h>

			int main(int argc, char* argv[])
			{
			int size, rank, resultlen;
			char name[MPI_MAX_PROCESSOR_NAME];

			/* Initialize MPI */
			MPI_Init(&argc, &argv);
			MPI_Comm_rank(MPI_COMM_WORLD, &rank);
			MPI_Comm_size(MPI_COMM_WORLD, &size);
			MPI_Get_processor_name(name, &resultlen);

			/* printf("Hello world, I am rank %d of size %d\n", rank, size); */
			printf("Hello world: I am task rank %d, running on node '%s'\n", rank, name);

			/* Synchronize MPI processes */
			MPI_Barrier(MPI_COMM_WORLD);

			MPI_Finalize();
			return 0;
			}

rSCUSINGMPI/ex2/hello_mpi.c0a29d6b2b27bmaster