[slurm-users] MaxTime only for a user

[Loris Bennett]

Ole Holm Nielsen <Ole.H.Nielsen at fysik.dtu.dk> writes:

> On 2/25/21 11:17 AM, Diego Zuccato wrote:
>> Il 25/02/21 11:00, Ole Holm Nielsen ha scritto:
>>
>>> I think so, please see https://slurm.schedmd.com/resource_limits.html
>>> and look for the MaxWallDurationPerJob limit.  You have to set that
>>> limit on the user's association.
>> IIUC the limit in the assoc can't override the one in the partition.
>> So the definition will have to be reversed: set the partition limit to
>> the max allowed (1h) and limit all users except one in the assoc.
>
> You are right!  According to the resource_limits page the limits have a
> specified precedence.  But now I see that there is an exception listed:
>
>> Note: The precedence order specified above is respected except for the
>> following limits: Max[Time|Wall], [Min|Max]Nodes. For these limits, even if
>> the job is enforced with QOS and/or Association limits, it can't go over the
>> limit imposed at Partition level, even if it listed at the bottom. So the
>> default for these 3 types of limits is that they are upper bound by the
>> Partition one. This Partition level bound can be ignored if the respective QOS
>> PartitionTimeLimit and/or Partition[Max|Min]Nodes flags are set, then the job
>> would be enforced the limits imposed at QOS and/or association level
>> respecting the order above. 

Thanks for pointing that out, Ole.  So I should be able to stop a user
from submitting jobs by setting, say, MaxTime to 0, which is rather
neater than tweaking the QOS.

Cheers,

Loris

-- 
Dr. Loris Bennett (Hr./Mr.)
ZEDAT, Freie Universität Berlin         Email loris.bennett at fu-berlin.de