=== Containers ===
We have enabled [https://apptainer.org/docs/admin/main/user_namespace.html user User namespaces] to support the operation of are disabled on login nodes for security reasons, which means that Apptainerwill (probably) not work. We recommend that you make a habit of testing Apptainers test containers on compute nodes rather than login nodes, in case we have to disable user namespaces using <code>srun</code> or <code>salloc</code>; Apptainer should work there. For more on login nodes without notice for security reasons<code>srun</code> or <code>salloc</code> see [https://docs.alliancecan.ca/wiki/Running_jobs#Interactive_jobs Interactive jobs].
== Job scheduling ==