[slurm-users] [EXT] User association with partition and Qos

[Amjad Syed]

Hello me again

Just found out that when our slurmctld restarts all qos are gone.

I mean users who have association with the qos can not submit job with
sbatch, they get error as

sbatch: error: Batch job submission failed: Invalid qos specification


Do we need to make anymore changes in slurm.conf so that qos becomes
permanent ?

Amjad

On Fri, Aug 27, 2021 at 3:32 PM Amjad Syed <amjadcsu at gmail.com> wrote:

> Hi Sean,
>
> Thanks for the suggestion, seems to work now.
>
> Majid
>
> On Fri, Aug 27, 2021 at 12:56 PM Sean Crosby <scrosby at unimelb.edu.au>
> wrote:
>
>> Hi Amjad,
>>
>> Make sure you have qos in the config entry AccountingStorageEnforce
>>
>> e.g.
>>
>> AccountingStorageEnforce=associations,limits,qos,safe
>>
>> Sean
>>
>> ------------------------------
>> *From:* slurm-users <slurm-users-bounces at lists.schedmd.com> on behalf of
>> Amjad Syed <amjadcsu at gmail.com>
>> *Sent:* Friday, 27 August 2021 20:28
>> *To:* slurm-users at schedmd.com <slurm-users at schedmd.com>
>> *Subject:* [EXT] [slurm-users] User association with partition and Qos
>>
>> * External email: Please exercise caution *
>> ------------------------------
>> Hello all
>>
>> We are having an issue understanding user association and partition.
>>
>> Currently we have a partition with 30 GPU cards .
>>
>> We have defined a qos gpu-rtx that allows user to reserve 2 cards
>>
>> sacctmgr show qos gpu-rtx format=MaxTRESPU%60
>>
>>                                                    MaxTRESPU
>>
>>        -----------------------------------------------------
>>                                            cpu=96,gres/gpu=2
>>
>>
>>
>>
>> We have defined a user test that is assoc with this qos
>>
>>
>> sacctmgr show assoc user=test format=user,qos
>>
>>
>> Qos
>>
>> gpu-rtx
>>
>>
>>
>> Now we define another qos  gpu-rtx-reserved  that allows gpu=8
>>
>>
>> sacctmgr show qos gpu-rtx-reserved format=MaxTRESPU%60
>>
>>                                                    MaxTRESPU
>>
>>        -----------------------------------------------------
>>                                            cpu=192,gres/gpu=8
>>
>> User test is not associated with gpu-rtx-reserved qos. So he should not
>> be able to use more then gpu=2 .
>> Both of these qos are now in slurm.conf for the partition
>>
>> parrtitionName=gpu-rtx6000-2 State=UP Nodes=g[15-29] MaxNodes=9
>> MaxTime=168:00:00 DefMemPerCPU=3996 AllowQos=gpu-rtx,gpu-rtx-reserved
>>
>>
>>
>> But we found out that even though user is not assoc with gpu-rtx-reserved
>> if the user uses gpu-rtx-reserved  in his slurm script , he can reserve 8
>> gpu cards
>>
>>
>> So our question is , can the users assoc with one partition qos can use
>> the other qos in the partition  even if they are not associated with it .
>> or in other words , we can only define one partition qos and not more then
>> one.?
>>
>>
>> Hope i was able to explain ?
>>
>>
>> Any advice if we want partition to use more then one qos with different
>> limits and users associated with one qos should not use other qos ?
>>
>>
>> Majid
>>
>>
>>
>>
>>
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