2025-09-01 — Upgrade finished

During the summer holidays of 2025, we upgraded our CalcUA clusters to Rocky Linux 9.
The upgrade includes the following changes (see below):

  • new versions of kernel packages, drivers, and system installed user packages
  • Slurm updated to version 25.05
  • only toolchain versions 2023a and above will be available

Users will need to:

  • start using modules from 2023a or above
  • recompiling your code and/or recreating your (virtual) environments
  • check that their code still runs
  • update job scripts (if needed)

For more information please check our Upgrade to Rocky Linux 9 webpage.
Note: the free test period (under reservation rocky9) ended September 1, 2025.

For questions and problems, please contact us via e-mail: hpc@uantwerpen.be.

2025-07-01 — Upgrade to Rocky Linux 9

​During the summer holidays, we have planned an upgrade of our clusters to Rocky Linux 9.
The migration timeline is planned starting July 2025 'till mid-September 2025.

Changes include:

  • new versions of kernel packages, drivers, and system installed user packages
  • update of Slurm to version 25.05 (already finished)
  • only toolchain versions 2023a and above will be available

Users will need to:

  • start using modules from 2023a or above
  • reompile their code and/or recreate their (virtual) environments
  • check that their code still runs
  • update job scripts (if needed)

During July and August 2025, there is a free test period for jobs running within the rocky9 reservation (which contains nodes that have already been upgraded).

For more information please check our Upgrade to Rocky Linux 9 webpage.