Difference between revisions of "BwUniCluster2.0/Maintenance/2023-03"
P Weisbrod (talk | contribs) (Created page with "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 ha...") |
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| − | The following changes |
+ | The following changes were 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 |
+ | The host key of the system has 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: |
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= Hardware = |
= Hardware = |
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| − | * All firmware versions on all components were upgraded |
+ | * All firmware versions on all components were upgraded. |
= Operating system = |
= Operating system = |
||
| − | * The operating system |
+ | * The operating system was 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 was updated |
+ | * The Mellanox OFED InfiniBand Stack was updated. |
= Compilers, Libaries and Runtime Environments = |
= Compilers, Libaries and Runtime Environments = |
||
| + | |||
| − | * The Intel Parallel Studio (Compiler, MKL, MPI) version 2019 modules were removed during the maintenance. |
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| − | * clang 9 and llvm 10 modules were removed |
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= Userspace tools = |
= Userspace tools = |
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| + | * pigz and pbzip are not supported anymore. Please use pzstd instead. |
||
= Software Modules = |
= Software Modules = |
||
| + | * The Lmod module system was upgraded. |
||
| + | |||
| + | * Old openmpi 4.0 modules were removed. Please use openmpi 4.1. |
||
= Batch system = |
= Batch system = |
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| − | * The Slurm version was upgraded to version |
+ | * The Slurm version was upgraded to version 23.02.0. |
| + | |||
| − | * Pyxis Plugin version was upgraded to 0.14.0 |
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| + | * The Slurm partitions have changed: |
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| + | ** multiple and multiple_il maximum number of nodes is now 80 |
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| + | ** the amount of available nodes in partition single has been increased |
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| + | ** the amount of available nodes in partition multiple has been decreased |
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= Storage = |
= Storage = |
||
| + | |||
| − | * Lustre client, BeeGFS client and Spectrum Scale client were updated |
||
| + | * Lustre client, BeeGFS client and Spectrum Scale client were updated. |
||
= Graphics stack = |
= Graphics stack = |
||
| − | * The NVIDIA driver was upgraded |
+ | * The NVIDIA driver was upgraded. |
| − | * Cuda 11.7 was installed |
||
= Containers = |
= Containers = |
||
| + | * Enroot was upgraded. |
||
| + | * Singularity was replaced with its successor Apptainer. (the command 'singularity' still works) |
||
= JupyterHub = |
= JupyterHub = |
||
| + | |||
| + | * Jupyterhub was upgraded to version 3.1.1 |
||
| + | |||
| + | * python3.9 is now used as the default |
||
| + | |||
| + | = Resource Limits on Login Nodes = |
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| + | |||
| + | * After the maintenance the following per-user limits apply (via cgroups): |
||
| + | ** 48 GB phyisical memory |
||
| + | ** 400% CPU cycles (100% equals 1 thread) |
||
Latest revision as of 14:39, 24 March 2023
The following changes were 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 has 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 |
Contents
1 Hardware
- All firmware versions on all components were upgraded.
2 Operating system
- The operating system was 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 was updated.
3 Compilers, Libaries and Runtime Environments
4 Userspace tools
- pigz and pbzip are not supported anymore. Please use pzstd instead.
5 Software Modules
- The Lmod module system was upgraded.
- Old openmpi 4.0 modules were removed. Please use openmpi 4.1.
6 Batch system
- The Slurm version was upgraded to version 23.02.0.
- The Slurm partitions have changed:
- multiple and multiple_il maximum number of nodes is now 80
- the amount of available nodes in partition single has been increased
- the amount of available nodes in partition multiple has been decreased
7 Storage
- Lustre client, BeeGFS client and Spectrum Scale client were updated.
8 Graphics stack
- The NVIDIA driver was upgraded.
9 Containers
- Enroot was upgraded.
- Singularity was replaced with its successor Apptainer. (the command 'singularity' still works)
10 JupyterHub
- Jupyterhub was upgraded to version 3.1.1
- python3.9 is now used as the default
11 Resource Limits on Login Nodes
- After the maintenance the following per-user limits apply (via cgroups):
- 48 GB phyisical memory
- 400% CPU cycles (100% equals 1 thread)
