BwUniCluster3.0: Difference between revisions

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[[File:BwUniCluster_2.0_Feb2020_1024x423.jpg|right|frameless|thumb|alt=bwUniCluster2.0 |upright=1| bwUniCluster 2.0 ]]

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The '''bwUniCluster 3.0+KIT-GFA-HPC 3''' is the joint high-performance computer system of Baden-Württemberg's Universities and Universities of Applied Sciences for '''general purpose and teaching''' and located at the Scientific Computing Center (SCC) at Karlsruhe Institute of Technology (KIT). The bwUniCluster 3.0 complements the four bwForClusters and their dedicated scientific areas.
The '''bwUniCluster 3.0+KIT-GFA-HPC 3''' is the joint high-performance computer system of Baden-Württemberg's Universities and Universities of Applied Sciences for '''general purpose and teaching''' and located at the Scientific Computing Center (SCC) at Karlsruhe Institute of Technology (KIT). The bwUniCluster 3.0 complements the four bwForClusters and their dedicated scientific areas.
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[[File:DSCF6485_rectangled_perspective.jpg|center|600px|frameless|alt=bwUniCluster3.0 |upright=1| bwUniCluster 3.0 ]]



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## bwUniCluster: Maintenance Section ##
## bwUniCluster: Maintenance Section ##
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## Please also update status on the main wiki page and on https://wiki.bwhpc.de/e/Status
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| style="padding:8px; background:#FFE856; font-size:120%; font-weight:bold; text-align:left" | Next maintenance
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| style="padding:8px; background:#ff8c00; font-size:120%; font-weight:bold; text-align:left" | Scheduled Downtime: Shutdown of all HPC Clusters: 23.11.2026 – 04.12.2026
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<p>From 23 November 2026 until 4 December 2026 (expected), the computing center building (449.3) at KIT Campus North will be completely disconnected from the power grid due to mandatory inspections and maintenance work on the electrical infrastructure. This will affect all HPC systems operated at KIT. The following clusters will be unavailable during this period:</p>
Due to regular maintenance work the HPC System bwUnicluster 2 will not be available from


<ul>
21.05.2024 at 08:30 AM until 24.05.2024 at 15:00 AM
<li>bwUniCluster 3.0</li>
<li>HoreKa 2</li>
<li>HoreKa</li>
<li>HAICORE@KIT</li>
<li>Future Technologies Partition</li>
</ul>



<p>During this period, access to your data will not be possible. Compute jobs will not run while the systems are offline. Workspace expiration and automatic deletion will be suspended for the duration of the downtime; therefore, no ws_extend request is required.</p>

<p>To avoid additional service interruptions in the near future, we will combine this building-related outage with our own maintenance activities, including operating system updates, software upgrades, file system maintenance, completion of the final phase of the power busbar upgrade, and preparations of the rack infrastructure for the planned GPU-based expansion of the HPC systems in 2027.
</p>

<p>Once the maintenance work has been completed, the HPC systems will be brought back into operation one cluster at a time. The restart of all systems is planned to be completed by 4 December 2026.
</p>


Please see the [[BwUniCluster2.0/Maintenance/2024-05|maintenance]] page for more information about planned upgrades and other changes
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| style="padding:8px; background:#FFE856; font-size:120%; font-weight:bold; text-align:left" | Transition bwUniCluster 2.0 to &rarr; bwUniCluster 3.0
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<br>
To ensure that you can use the new system successfully and set up your working environment with ease, the following points should be noted.
To ensure that you can use the new system successfully and set up your working environment with ease, the following points should be noted.

== Registration ==
All users who already have an entitlement on bwUniCluster 2.0 are authorized to access bwUniCluster 3.0. The user only needs to '''register for the new service''' at https://bwidm.scc.kit.edu .


== Changes ==
== Changes ==
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bwUniCluster 3.0 features a completely new file system. '''There is no automatic migration of user data!'''
bwUniCluster 3.0 features a completely new file system. '''There is no automatic migration of user data!'''
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<br>
The file systems of the old system and the login nodes will remain in operation for a period of '''3 months''' after the new system goes live (till July 6, 2025).
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In order to move data that is still needed, and possibly user software, from the old HOME directory to the new HOME directory, or to new workspaces, instructions are provided here: [[BwUniCluster3.0/Data_Migration_Guide#Migration_of_Data|Data Migration Guide]]
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In order to move data that is still needed, user software, and user specific settings from the old HOME directory to the new HOME directory, or to new workspaces, instructions are provided here: [[BwUniCluster3.0/Data_Migration_Guide#Migration_of_Data|Data Migration Guide]]
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* Access: [[Registration/bwUniCluster|Registration]], [[Registration/Deregistration|Deregistration]]
* Access: [[Registration/bwUniCluster|Registration]], [[Registration/Deregistration|Deregistration]], [[BwUniCluster3.0/Policies|Policies]]
* [[BwUniCluster3.0/Login|Login]]
* [[BwUniCluster3.0/Login|Login]]
** [[BwUniCluster3.0/Login/Client|SSH Clients]]
*
** [[BwUniCluster3.0/Login/Data_Transfer|Data Transfer]]
* [[BwUniCluster3.0/Hardware_and_Architecture|Hardware and Architecture]]
* [[BwUniCluster3.0/Hardware_and_Architecture|Hardware and Architecture]]
** [[BwUniCluster3.0/Hardware_and_Architecture#Compute_resources|Compute Resources]]
** [[BwUniCluster3.0/Hardware_and_Architecture#Compute_Resources|Compute Resources]]
** [[BwUniCluster3.0/Hardware_and_Architecture#File_Systems|File Systems]]
** [[BwUniCluster3.0/Hardware_and_Architecture#File_Systems|File Systems]]
* [[BwUniCluster3.0/Software|Cluster Specific Software]]
* [[BwUniCluster3.0/Software|Cluster Specific Software]]

Latest revision as of 19:25, 29 October 2026

The bwUniCluster 3.0+KIT-GFA-HPC 3 is the joint high-performance computer system of Baden-Württemberg's Universities and Universities of Applied Sciences for general purpose and teaching and located at the Scientific Computing Center (SCC) at Karlsruhe Institute of Technology (KIT). The bwUniCluster 3.0 complements the four bwForClusters and their dedicated scientific areas.

bwUniCluster3.0



Scheduled Downtime: Shutdown of all HPC Clusters: 23.11.2026 – 04.12.2026

From 23 November 2026 until 4 December 2026 (expected), the computing center building (449.3) at KIT Campus North will be completely disconnected from the power grid due to mandatory inspections and maintenance work on the electrical infrastructure. This will affect all HPC systems operated at KIT. The following clusters will be unavailable during this period:

  • bwUniCluster 3.0
  • HoreKa 2
  • HoreKa
  • HAICORE@KIT
  • Future Technologies Partition


During this period, access to your data will not be possible. Compute jobs will not run while the systems are offline. Workspace expiration and automatic deletion will be suspended for the duration of the downtime; therefore, no ws_extend request is required.

To avoid additional service interruptions in the near future, we will combine this building-related outage with our own maintenance activities, including operating system updates, software upgrades, file system maintenance, completion of the final phase of the power busbar upgrade, and preparations of the rack infrastructure for the planned GPU-based expansion of the HPC systems in 2027.

Once the maintenance work has been completed, the HPC systems will be brought back into operation one cluster at a time. The restart of all systems is planned to be completed by 4 December 2026.



Training & Support
User Documentation
Cluster Funding
  • Please acknowledge bwUniCluster 3.0 in your publications.
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