Using Slurm on Snowy

This page describes how to use Slurm on Snowy.

What is Slurm?

See the general page on Slurm here

What is Snowy?

See the general page on Snowy here

See Slurm troubleshooting how to fix Slurm errors.

sbatch (and interactive) on Snowy

sbatch (and interactive) work the same as on other clusters, the only difference is that one need specify one want to use the Snowy computer nodes.

Want to start an interactive job?

See how to start an interactive job on Snowy here

Here it is shown how to submit a job with:

• command-line Slurm parameters
• Slurm parameters in the script

sbatch a script with command-line Slurm parameters

The minimal command to use sbatch with command-line Slurm parameters is:

sbatch -A [project_code] -M snowy [script_filename]

where [project_code] is the project code, and [script_filename] the name of a bash script, for example:

sbatch -A uppmax2023-2-25 -M snowy my_script.sh

Forgot your Snowy project?

One can go to the SUPR NAISS pages to see one's projects,

An example of the Snowy project called 'UPPMAX 2023/2-25'

On the SUPR NAISS pages, projects are called 'UPPMAX [year]/[month]-[day]', for example, 'UPPMAX 2023/2-25'. The UPPMAX project name, as to be used on Snowy, has a slightly different name: the account name to use on Snowy is uppmax[year]-[month]-[day], for example, uppmax2023-2-25

What is in the script file?

The script file my_script.sh is a minimal example script. Such a minimal example script could be:

#!/bin/bash
echo "Hello"

Again, what is shown here is a minimal use of sbatch. See the general page on Slurm here.

sbatch a script with Slurm parameters in script

The minimal command to use sbatch with Slurm parameters in the script:

sbatch [script_filename]

where [script_filename] the name of a bash script, for example:

sbatch my_script.sh

The script must contain at least the following lines:

#SBATCH -A [project_code]
#SBATCH -M snowy

where [project_code] is the project code, for example:

#SBATCH -A uppmax2023-2-25
#SBATCH -M snowy

Forgot your Snowy project?

One can go to the SUPR NAISS pages to see one's projects,

An example of the Snowy project called 'UPPMAX 2023/2-25'

On the SUPR NAISS pages, projects are called 'UPPMAX [year]/[month]-[day]', for example, 'UPPMAX 2023/2-25'. The UPPMAX project name, as to be used on Snowy, has a slightly different name: the account name to use on Snowy is uppmax[year]-[month]-[day], for example, uppmax2023-2-25

A full example script would be:

#!/bin/bash
#SBATCH -A uppmax2023-2-25
#SBATCH -M snowy
echo "Hello"

Again, what is shown here is a minimal use of sbatch. See the general page on Slurm here.