NEMO Power Maintenance

Published: 22 Feb 2022 by HPC Team Freiburg

Inspection of the data center power supply.

Date : 03.03.2022 6:00 - 18:00 CET

The complete NEMO cluster will be shut down. No computing is possible during the maintenance, so submit all jobs in time. Note that only jobs whose walltime fits into the time window until maintenance can start. Jobs that cannot start will only be processed afterwards. However, in the event of problems, the queue may have to be emptied. During maintenance the operating system of the cluster is updated.

Update 03.03.2022:

The maintenance of the uninterruptible power supply was successfully completed. In addition, firmware updates were applied to all Ethernet switches. On the NEMO worker nodes, the OS was updated to the latest version (security update March, CentOS 7.9, Rev. 17).

NEMO2 has officially launched, transitioning from a testing phase to full production with expanded hardware, including AMD Instinct MI300A and Nvidia L40A nodes. NEMO1 is being phased out, with limited resources available until May 31st. Users are encouraged to transition to NEMO2 and consult the wiki for details.

NEMO2 uses Miniforge for conda environments, offering a streamlined setup with conda-forge as the default repository. The Miniforge module auto-initializes conda, simplifying environment activation without modifying shell profiles.

The AMD Genoa, Machine Learning and AI partitions for NEMO2 were delivered on December 4th. The acceptance of the storage has been delayed, so that NEMO2 could not yet start this year. However, calculations with the Milan nodes in NEMO1 are still possible.