Yggdrasil scheduled maintenance: 24-27 March 2026

HPC Announce
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Dear users,

We will be performing software and hardware maintenance on the Yggdrasil HPC cluster from 24 to 27 March 2026, starting at 08:00 +0100.

You’ll receive an email when the maintenance is finished. The cluster will be completely unavailable during this time, with no access whatsoever (not even to retrieve files).

We remember you that you our two other HPC clusters are available during the maintenance!

When submitting a job, make sure that the expected wall time (duration) doesn’t overlap with the start of the maintenance, or it will be scheduled after.

What will be done during this maintenance

  1. All compute nodes will be reinstalled with latest Rocky 9
  2. Upgrade BeeGFS to version 7.4.7
  3. Upgrade Slurm to version 25.11.3
  4. Update all servers to the latest security and bugfix releases.

During the maintenance period we are very busy and provide limited user support.

Thank you for your understanding.

Best regards,

The Baobab HPC Team

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Dear HPC users,

We are pleased to inform you that the maintenance on the Yggdrasil cluster has been successfully completed.

As of March 25th, 2026 at 11:30, full access to the system has been restored.

You may now resume your usual activities on the cluster.

Thank you for your patience and understanding during the maintenance period.

Best regards,
The Baobab HPC Team