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hpc:faq [2025/06/12 08:36] – [Account] Adrien Alberthpc:faq [2025/10/28 14:40] (current) – [Storage] Adrien Albert
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 +??? If multiple PIs jointly purchase computing resources on the Baobab cluster, who receives the invoice?
 +
 +!!! When several Principal Investigators (PIs) collaborate to acquire computing resources on the Baobab cluster, the invoice will be sent to the designated contact person of the group associated with the partition named private_xxx, where xxx is the name of the partition. This person acts as the reference for the group and is responsible for managing the billing and communication related to the shared resources.
 +
 +It is up to the PIs involved to agree among themselves on how the computing hours are distributed. The Baobab team does not manage internal allocations within shared purchases.
  
 ??? I'm a PI, I tried to use OpenXDmoD to see the past usage of my group without success ??? I'm a PI, I tried to use OpenXDmoD to see the past usage of my group without success
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-??? How can I check usage on more than one partition?+??? With OpenXDmoD how can I check usage on more than one partition?
 !!! Unfortunately, it seems that you need to do this operation for each partition separately. !!! Unfortunately, it seems that you need to do this operation for each partition separately.
  
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-??? I'm organising a course and we need some HPC resources for the students. Do we have to pay for it?+??? I'm organizing a course and we need some HPC resources for the students. Do we have to pay for it?
 !!! The Baobab service is free for courses as long as the usage is low and for a defined period of time. Check [[hpc:hpc_clusters#use_baobab_for_teaching|How our clusters work]]. !!! The Baobab service is free for courses as long as the usage is low and for a defined period of time. Check [[hpc:hpc_clusters#use_baobab_for_teaching|How our clusters work]].
  
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 !!!  * If you have a non student account (Phd, postdoc, researcher), your account will expire at the same time your contract expire at UNIGE. Right now, there is a grace period after the end of your contract of around 6 months. !!!  * If you have a non student account (Phd, postdoc, researcher), your account will expire at the same time your contract expire at UNIGE. Right now, there is a grace period after the end of your contract of around 6 months.
   * If you have an outsider account, you need to check the expiration date you received when you filled the invitation.   * If you have an outsider account, you need to check the expiration date you received when you filled the invitation.
-  * If you have an unige student account, you can check the expiration date with the ''chage'' command:+  * If you have an UNIGE student account, you can check the expiration date with the ''chage'' command:
 <code> <code>
 (baobab)-[yourusername@login2 ~]$ chage -l yourusername (baobab)-[yourusername@login2 ~]$ chage -l yourusername
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 If you need to store a large amount of data, consider using the "Academic NAS" service, which you can find here: Academic NAS. If you need to store a large amount of data, consider using the "Academic NAS" service, which you can find here: Academic NAS.
 +
 +??? How can I request for a shared directory
 +!!!A shared directory is a directory with access permissions granted to a specific group for sharing data.
 +Since June 2025, all new shared directories must use groups declared in the Active Directory of UNIGE.
 +
 +To request a shared directory please fill the [[https://dw.unige.ch/openentry.html?tid=hpc | HPC form]] on DW.
  
 ??? How can I access to a shared directory? ??? How can I access to a shared directory?
 !!! To access a **shared directory**, you need to be added to the appropriate group. !!! To access a **shared directory**, you need to be added to the appropriate group.
  
-Please send an email to [[hpc@unige.ch]] including relevant information (Uusername, Group, private_partion etc...) with the responsible person for the share or partition in CC. The responsible person **must** approve the modification.+For shared directories using a group from Active Directory (groups beginning with GG or GL - example: GL_S_SCIENCES_POSY_LET, please contact your CI (Correspondant Informatique) or use the [[https://dw.unige.ch/openentry.html?tid=adaccess|ADaccess form]] on DW. 
 + 
 +For old group (share_XXX, private_XXX), please send an email to [[hpc@unige.ch]] including relevant information (Uusername, Group, private_partion etc...) with the responsible person for the share or partition in CC. The responsible person **must** approve the modification.
  
 ??? How can I copy data from one cluster to another one? ??? How can I copy data from one cluster to another one?
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 ??? I want to run several time the same job with different parameters ??? I want to run several time the same job with different parameters
 !!!In that case you can use the **job arrays** feature of SLURM. Please, have a look at the documentation [[hpc:slurm#job_array|Job array]] !!!In that case you can use the **job arrays** feature of SLURM. Please, have a look at the documentation [[hpc:slurm#job_array|Job array]]
 +
 +??? Is the nodes from my partition in use?
 +!!! You can't just check with the partition name as the node may be in use by another partition such as shared-cpu. Here is an example to check the usage of your comput nodes:
 +<code>
 +squeue -w $(sinfo --noheader --partition <to be replaced by partition-name> --format="%n" | nodeset -f)
 +</code>
  
  
hpc/faq.1749717369.txt.gz · Last modified: by Adrien Albert