Software: Apptainer - nthu-ioa/cluster GitHub Wiki

Apptainer is the open-source successor to Singularity. It can be used to run containerised images that can run on HPC systems using MPI and infiniband (with some care, see below).

See https://apptainer.org/.

We use Apptainer version 1.2.5-1.

The following links may be useful:

• https://apptainer.org/docs/user/main/mpi.html
• https://apptainer.org/docs/user/main/bind_paths_and_mounts.html
• https://apptainer.org/docs/admin/1.0/installation.html#filesystem-support-limitations

[!WARNING] Be very careful about using the rm command inside apptainer sessions (you should always be very careful about using rm anywhere). By default, apptainer mounts your \cluster\home folder directly. This is the actual folder, with your actual data in it. Is not a copy! If you delete this folder, you'll lose your data.

[!WARNING] --overlay does not work on the /lfs space. See https://apptainer.org/docs/admin/1.0/installation.html#lustre-gpfs.