The ISC wiki - infra:howto https://wiki.isc-vs.ch/ 2026-07-24T03:02:11+00:00 The ISC wiki https://wiki.isc-vs.ch/ https://wiki.isc-vs.ch/lib/exe/fetch.php?media=logo.png text/html 2025-03-03T10:24:15+00:00 Anonymous (anonymous@undisclosed.example.com) apptainer_sample https://wiki.isc-vs.ch/doku.php?id=infra:howto:apptainer_sample&rev=1740997455&do=diff How-to create a simple apptainer container Consider the case where you need to create a working python3 distrib with pytorch installed for running a script using GPU resources on ChaCha or DISCO. On those machines, we use Apptainer for the containers and this documentation describes how to create, customize and run images using Apptainer. Launching Apptainer tasks using Slurm is defined elsewhere. text/html 2026-03-11T10:25:42+00:00 Anonymous (anonymous@undisclosed.example.com) runjob https://wiki.isc-vs.ch/doku.php?id=infra:howto:runjob&rev=1773224742&do=diff How to run a job on our computational ressources Introduction The rationale for this procedure is to ensure data security, to keep visibility on the cluster usage and prevent maxing out cluster resources. Apptainer makes the container safe for all the other users : unlike Docker that needs to be run as root to be able to use GPUs, Apptainer is made for HPC usage, which prevents your container or the containers for other researchers to read your files, or erase them. text/html 2025-05-16T11:55:53+00:00 Anonymous (anonymous@undisclosed.example.com) slurm_sample https://wiki.isc-vs.ch/doku.php?id=infra:howto:slurm_sample&rev=1747396553&do=diff How-to create a simple SLURM job Make sure you already have an Apptainer container ready to use at this stage You should have your container ready in the Apptainer file format : for examples here, application.sif To run your job via SLURM, it is best to create a text/html 2024-12-12T14:22:19+00:00 Anonymous (anonymous@undisclosed.example.com) start https://wiki.isc-vs.ch/doku.php?id=infra:howto:start&rev=1734013339&do=diff How To : * How to run a job on our computational ressources * How-to create a simple apptainer container * How-to create a simple SLURM job