[slurm-users] Add partition to existing user association

[Thekla Loizou]

Dear all,

I was wondering if there is a way to add a partition to an existing user
association.

For example if I have an association of user thekla to an account ops I
can set a qos for the existing association:

sacctmgr modify user thekla account=ops set qos=nosubmit
 Modified user associations...
  C = cyclamen   A = ops                  U = thekla

However, I cannot set a partition:

sacctmgr modify user thekla account=ops set partition=gpu
 Unknown option: partition=gpu
 Use keyword 'where' to modify condition

This is not possible?

The only solution I found to that is to delete the association and
create it again with the partition:

sacctmgr del user thekla account=ops

sacctmgr add user thekla account=ops partition=gpu

Thank you,

Thekla

[Dori Sajdak]

Hi Thekla,

When it comes to partitions, I believe you need to specify the cluster so in your example:

sacctmgr modify user thekla account=ops set partition=gpu where cluster=YourClusterName

QOS is not tied to a specific cluster but partitions are. That should work for you.

Dori

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[Thekla Loizou]

Dear Dori,

Thanks for your reply. Unfortunately this does not work either...

Best,

Thekla

[Loris Bennett]

Dear Thekla,

Disclaimer: Firstly, I find account management in Slurm confusing and
the documentation strangely unenlightening. Secondly, I don't make many
changes to things once users have been set up, so I have very little
experience of actually tweaking the accounting.

Despite my understanding of the documentation that you *can* modify the
partition of a user, I don't think this is actually the case. If I look
at the database, the user table has no column 'partition' whereas the
association table does.

So you might be able to modify the association, but you might also just
have to delete the association and recreate it with the desired
partitions. Or you might have to do something entirely different ...

Maybe people who do understand Slurm's account management can chip in.

Cheers,

Loris

--
Dr. Loris Bennett (Herr/Mr)
ZEDAT, Freie Universität Berlin Email loris....@fu-berlin.de

[Marcus Wagner]

Hi all,

an association is a triple (quadruple if you have several clusters) consisting of "user", "account" and "partition".
So, you need to add a association.

I'm not sure, how the accounting works, if no partition is set. We are always setting that triple, automatically during first submission to this triple.

Not all users / account are allowed to use all partitions. This is checked externally, and if the user is allowed to submit to a partition with a specific account, we add that triple with sacctmgr.


Best
Marcus

Dipl.-Inf. Marcus Wagner

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[Thekla Loizou]

Hi all,

I agree with both Marcus and Loris.

I am referring to modifying the association basically since when we
first created our associations we had only "user" and "account" and now
we also need to add the "partition".

My understanding from the documentation was that I would be able to
modify the association and add the partition but it seems that this is
not the case.

So I guess we will proceed with my original solution to delete all
associations consisting of "user" and "account" and create new ones

consisting of "user", "account" and "partition".

Regards,

Thekla