diff --git a/mpi_info/.gitignore b/mpi_info/.gitignore new file mode 100644 index 0000000000000000000000000000000000000000..6a2477a90d0827c04224437dcd21467272f5eabc --- /dev/null +++ b/mpi_info/.gitignore @@ -0,0 +1,2 @@ +mpi_info + diff --git a/mpi_info/Makefile b/mpi_info/Makefile new file mode 100644 index 0000000000000000000000000000000000000000..6f776f48f41fb049dbad26bf91b10a75458b7e86 --- /dev/null +++ b/mpi_info/Makefile @@ -0,0 +1,2 @@ +mpi_info: mpi_info.c + mpicc -o $@ $< diff --git a/mpi_info/load_modules.sh b/mpi_info/load_modules.sh new file mode 100755 index 0000000000000000000000000000000000000000..6cfb6e00d742f914aeda22b63ec9845272d754d4 --- /dev/null +++ b/mpi_info/load_modules.sh @@ -0,0 +1,5 @@ +#!/bin/bash + +module purge +module load spack git gcc/7.3.0 openmpi + diff --git a/mpi_info/mpi_info.c b/mpi_info/mpi_info.c new file mode 100644 index 0000000000000000000000000000000000000000..2df42b6a36ebf8947651913e181cc591b5313383 --- /dev/null +++ b/mpi_info/mpi_info.c @@ -0,0 +1,14 @@ +#include "mpi.h" +#include <stdio.h> + +int main(int argc, char *argv[]) { + int numtasks, rank, length; + char hostname[MPI_MAX_PROCESSOR_NAME]; + + MPI_Init(&argc, &argv); + MPI_Comm_size(MPI_COMM_WORLD, &numtasks); + MPI_Comm_rank(MPI_COMM_WORLD, &rank); + MPI_Get_processor_name(hostname, &length); + printf("Number of tasks = %d, rank = %d, running on %s\n", numtasks, rank, hostname); + MPI_Finalize(); +}