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).

The 10th bwHPC Symposium will take place on September 25th and 26th, 2024 and will be hosted by the University of Freiburg. Registration and call for participation are now open.

The use of a second factor to secure logins to services is becoming increasingly mandatory. bwHPC currently uses time-based one-time passwords (TOTP) or Yubico OTP as a second factor for SSH logins. We have looked at some hardware security tokens for bwIDM/bwHPC that can be used instead of a mobile phone.

The initial partition of NEMO2, consisting of around 140 Milan nodes and 1000 terabytes (one petabyte) of high-speed storage space, has been ordered. A tender for a GPU partition and a second CPU partition will be opened in early 2024.