Simple Job

Every SLURM job consists of a job submission file. A job submission file contains a list of commands that run your program and a set of resource (nodes, walltime, queue) requests. The resource requests can appear in the job submission file or can be specified at submit-time as shown below.

This simple example submits the job submission file hello.sub to the accountname account on Bell and requests a single node:

#!/bin/bash
# FILENAME: hello.sub

# Show this ran on a compute node by running the hostname command.
hostname

echo "Hello World"

sbatch -A accountname --nodes=1 --ntasks=1 --cpus-per-task=1 --time=00:01:00 hello.sub 
Submitted batch job 3521

For a real job you would replace echo "Hello World" with a command, or sequence of commands, that run your program.

After your job finishes running, the ls command will show a new file in your directory, the .out file:

ls -l
hello.sub
slurm-3521.out

The file slurm-3521.out contains the output and errors your program would have written to the screen if you had typed its commands at a command prompt:

cat slurm-3521.out 


bell-a001.rcac.purdue.edu

Hello World

You should see the hostname of the compute node your job was executed on. Following should be the "Hello World" statement.

Back to the Generic SLURM Jobs section