#include #include "mpi.h" void main(int argc, char **argv) { int me, nprocs, namelen; char processor_name[MPI_MAX_PROCESSOR_NAME]; MPI_Init(&argc, &argv); MPI_Comm_size(MPI_COMM_WORLD, &nprocs); MPI_Comm_rank(MPI_COMM_WORLD, &me); MPI_Get_processor_name(processor_name, &namelen); printf("Hello World! I'm process %d of %d on %s\n", me, nprocs, processor_name); MPI_Finalize(); }