BwUniCluster2.0/Maintenance/2023-03
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The following changes will be introduced during the maintenance interval between on 20.03.2023 (Monday) 08:30 and 24.03.2023 (Friday) 15:00.
The host key of the system will not change. You should not receive any warnings by your SSH client(s), but if there should be a warning or if you want to check that you are connecting to the correct system, you can verify the key hashes using the following list:
| Algorithm | Hash (SHA256) | Hash (MD5) |
|---|---|---|
| RSA | p6Ion2YKZr5cnzf6L6DS1xGnIwnC1BhLbOEmDdp7FA0 | 59:2a:67:44:4a:d7:89:6c:c0:0d:74:ba:3c:c4:63:6d |
| ECDSA | k8l1JnfLf1y1Qi55IQmo11+/NZx06Rbze7akT5R7tE8 | 85:d4:d9:97:e0:f0:43:30:6e:66:8e:d0:b6:9b:85:d1 |
| ED25519 | yEe5nJ5hZZ1YbgieWr+phqRZKYbrV7zRe8OR3X03cn0 | 42:d2:0d:ab:87:48:fc:1d:5d:b3:7c:bf:22:c3:5f:b7 |
Hardware
- All firmware versions on all components will be upgraded.
Operating system
- The operating system will be upgraded from RHEL 8.4 EUS to RHEL 8.6 EUS. We recommend to re-compile all applications after the upgrade.
- The Mellanox OFED InfiniBand Stack will be updated.
Compilers, Libaries and Runtime Environments
Userspace tools
- The hpc-workspace tools will be updated to version 1.4.0.
Software Modules
- The Lmod module system will be upgraded.
- Old openmpi 4.0 modules will be removed. Please use openmpi 4.1.
Batch system
- The Slurm version will be upgraded to version 23.02.0.
Storage
- Lustre client, BeeGFS client and Spectrum Scale client will be updated.
Graphics stack
- The NVIDIA driver will be upgraded.
Containers
- Enroot will be upgraded.
- Singularity will be replaced with its successor Apptainer. (the command 'singularity' will still work)
JupyterHub
- Jupyterhub will be upgraded to version 3.1.1
- python3.9 will used as the default