Known issues

This page contains a list of known issues, and, if possible, workaround for them. For other kind of issues, please also check the HPC status page.

Unfortunately, setting up MFA for F-accounts turns out to be impossible. Instead, external collaborators should get an OEP (externall staff) identity via the HR department.

The Slurm scheduler has not been connected to a mail server and getting mail notifications is not possible. Because this caused emails from the RUG domain to be trapped by spam filters, we regrettably have no plans to enable email notifications in the future.

Interactive jobs, submitted as described on Interactive jobs, may not be using the software stack that was built for the CPU type of the allocated job, which could lead to application warnings or errors. In order to work around this, you can run unset SW_STACK_ARCH && module restore when the interactive job has started.

This seems to happen for jobs requesting a larger number of nodes, and only with mpirun. Please see this Intel MPI section for more information about using srun instead.

Due to a bug in the scheduler, OpenMPI 5 currently only works with mpirun (i.e. not with srun) on the parallel nodes. This will be fixed during the next Hábrók maintenance by upgrading the scheduler. This issue only affects (user installed) software built with these toolchains, and the few Hábrók modules using these toolchains (primarily R/4.4.2-gfbf-2024a and dependencies).

2025-07-01