Sample MPI Batch Script
This is an example script for a multi-node MPI job on Olivia’s CPU
nodes, using the NRIS/CPU (for the CPU compute nodes). If you want
to run instead on the GPU accelerator nodes, use NRIS/GPU instead.
(To run in other job types, please read Job Scripts on Olivia.
#!/bin/bash
#SBATCH --account=nnXXXXk # Your project
#SBATCH --job-name=Mandelbrot_MPI # A name for your MPI job
#SBATCH --time=0-0:05:00 # Total maximum runtime (e.g., 5 minutes)
#SBATCH --nodes=1 # Number of nodes to use
#SBATCH --ntasks-per-node=128 # Number of tasks per node
#SBATCH --cpus-per-task=1 # 1 CPU core per MPI task (adjust if using hybrid MPI/OpenMP)
#SBATCH --mem-per-cpu=3G # Amount of CPU memory per CPU core
#SBATCH --partition=normal # Run on the normal CPU partition
#SBATCH --output=my-job-name-%j.out # Sets name of output file (%j is replaced by job ID)
#SBATCH --error=my-job-name-%j.err # Sets name of error file (%j is replaced by job ID)
# Prevent silent errors
set -errext -nounset -o pipefail
# Load necessary modules for OpenMPI. Change to NRIS/GPU if on the accel partition
module load NRIS/CPU
module load OpenMPI
# Run your MPI application
srun ./my_mpi_program
Download the script: