BwUniCluster2.0/Maintenance/2022-11

The following changes have been introduced during the maintenance interval between on 07.11.2022 (Monday) 08:00 and 10.11.2022 (Thursday) 17:00.

The host key of the system have not changed. 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

The following issue is known:

Due to the hardware configuration, there is currently an already known problem with OpenMPI on the nodes in the "multiple_il" partition. It manifests itself in the warning "No OpenFabrics connection schemes reported" when starting an MPI application and refers to the device "mlx5_2". This is an Ethernet port, which is not supposed to be used by OpenMPI. The warning is informative, we are working on suppressing this message.

Hardware

• All firmware versions on all components were upgraded

Operating system

• The operating system remains at RHEL 8.4 EUS

• The Mellanox OFED InfiniBand Stack was updated to version 5.5-2.1.7.0

Compilers, Libaries and Runtime Environments

• The Intel Parallel Studio (Compiler, MKL, MPI) version 2019 modules were removed during the maintenance.
• clang 9 and llvm 10 modules were removed

Batch system

• The Slurm version was upgraded to version 22.05.5
• Pyxis Plugin version was upgraded to 0.14.0

Storage

• Lustre client, BeeGFS client and Spectrum Scale client were updated

Graphics stack

• The NVIDIA driver was upgraded to version 515.65.07
• Cuda 11.7 was installed