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Created February 26, 2018 16:36
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Simple MPI test program
#include <mpi.h>
#include <stdio.h>
int main(int argc, char **argv)
MPI_Init(&argc, &argv);
// Get the number of processes
int world_size;
MPI_Comm_size(MPI_COMM_WORLD, &world_size);
// Get the rank of the process
int world_rank;
MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);
// Get the name of the processor
char processor_name[MPI_MAX_PROCESSOR_NAME];
int name_len;
MPI_Get_processor_name(processor_name, &name_len);
// Print off a hello world message
printf("Hello world from processor %s, rank %d"
" out of %d processors\n",
processor_name, world_rank, world_size);
// Finalize the MPI environment.
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