Difference between revisions of "Category:BwUniCluster 2.0"

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[[File:BwUniCluster_2.0_Feb2020.jpg|center|border|550px|Close-up of bwUniCluster by Robert Barthel, copyright: KIT (SCC)]]
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[[File:BwUniCluster_2.0_Feb2020.jpg|center|border|550px|Close-up of bwUniCluster by Simon Raffeiner, Copyright: KIT (SCC)]]
 
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| style="text-align:center; color:#000;vertical-align:middle;" |<span style="font-size:80%">Close-up of bwUniCluster © KIT (SCC)</span>
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The modern bwUniCluster 2.0 system consists of more than 840 SMP nodes with 64-bit Intel Xeon processors. It provides the universities of the state of Baden-Württemberg with general compute resources and can be used free of charge by the staff of all universities in Baden-Württemberg. Users who currently have access to bwUniCluster will automatically also have access to bwUniCluster 2.0. There is no need to apply for new entitlements or to re-register.
  
The modern bwUniCluster 2.0 system consists of more than 840 SMP nodes with 64-bit Intel Xeon processors. It provides the universities of the state of Baden-Württemberg with general compute resources and can be used free of charge by the staff of all universities in Baden-Württemberg. Users who currently have access to bwUniCluster will automatically also have access to bwUniCluster 2.0. There is no need to apply for new entitlements or to re-register.
   
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|{{yellow}}| MPI/Software issues
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|{{Red}}| Overview: Currrently enforced security measures
  
 
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After the [[BwUniCluster_2.0_Maintenance/2020-10|last maintenance]] there are currently some issues with Intel MPI and the default settings of a few software modules offered on the cluster. Further information be found [[BwUniCluster_2.0_Maintenance/2020-10/Software Issues|here]].
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Due to a security breach the following restrictions are currently being enforced:
  
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* A service password has to be set via the [https://bwidm.scc.kit.edu bwIDM] system. The passwords valid at the home institutions can no longer be used.
  
   
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* Access is limited to IP addresses from within the campus networks of the respective home institutions of our current users. If you are outside of one of these networks (e.g. in your home office), a VPN connection to your home institution has to be established first (see e.g. [https://www.scc.kit.edu/dienste/openvpn.php] for the KIT).
  
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|{{Red}}| New security measures
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On 13.08.2020 at 10 AM the following changes to the security policies will take effect:
   
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* For authentication, the use of a second factor (2-factor authentication) in addition to the service password will be mandatory. [[BwUniCluster 2.0 User Access/2FA Tokens|You can find the user documentation for this function here]].
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* SSH keys have been deactivated.
  
   
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* The use of SSH keys will be possible again. However, these can no longer be managed via the authorized_keys files, but only centrally via bwIDM. [[BwUniCluster 2.0 User Access/SSH Keys|You can find the user documentation for this function here]].
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* Direct SSH logins on the compute nodes are not possible.
  
   
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The following restrictions still apply:
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* The "SUID bit" cannot be used for files and directories.
  
   
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* Access is limited to IP addresses from within the campus networks of the respective home institutions of our current users. If you are outside of one of these networks (e.g. in your home office), a VPN connection to your home institution has to be established first (see e.g. [https://www.scc.kit.edu/dienste/openvpn.php] for the KIT).
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Most of the restrictions mentioned above are planned to be lifted soon.
  
 
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* bwUniCluster [[BwUniCluster_2.0_User_Access|Registration and Login]]
  
* bwUniCluster [[BwUniCluster_2.0_User_Access|Registration and Login]]
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* Registration [[bwUniCluster_2.0_Contact_and_Support|trouble issues]] & [[BwUniCluster_2.0_User_Access#Deregistration|Deregistration]]
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* Registration [[bwUniCluster 2.0 Support|trouble issues]] & [[BwUniCluster_2.0_User_Access#Deregistration|Deregistration]]
 
* [[First_Steps_on_bwHPC_cluster|First steps on bwUniCluster]]
  
* [[First_Steps_on_bwHPC_cluster|First steps on bwUniCluster]]
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* [[Jupyter_at_SCC|Access with Jupyter]]
 
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Revision as of 14:35, 10 November 2020


Close-up of bwUniCluster by Simon Raffeiner, Copyright: KIT (SCC)
Close-up of bwUniCluster © KIT (Simon Raffeiner/SCC)

On 17.03.2020, the Steinbuch Centre for Computing (SCC) at Karlsruhe Institute of Technology (KIT) commissioned a new parallel computer system called "bwUniCluster 2.0+GFB-HPC" as a state service within the bwHPC framework. The bwUniCluster 2.0 replaces the predecessor system bwUniCluster and also includes the additional compute nodes which were procured as an extension to the bwUniCluster in November 2016.

The modern bwUniCluster 2.0 system consists of more than 840 SMP nodes with 64-bit Intel Xeon processors. It provides the universities of the state of Baden-Württemberg with general compute resources and can be used free of charge by the staff of all universities in Baden-Württemberg. Users who currently have access to bwUniCluster will automatically also have access to bwUniCluster 2.0. There is no need to apply for new entitlements or to re-register.


MPI/Software issues

After the last maintenance there are currently some issues with Intel MPI and the default settings of a few software modules offered on the cluster. Further information be found here.


New security measures

On 13.08.2020 at 10 AM the following changes to the security policies will take effect:

The following restrictions still apply:

  • Access is limited to IP addresses from within the campus networks of the respective home institutions of our current users. If you are outside of one of these networks (e.g. in your home office), a VPN connection to your home institution has to be established first (see e.g. [1] for the KIT).


Access


Software
Hardware
Batch/Compute Jobs
bwHPC Best Practice Guides / FAQs
Miscellaneous




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