[slurm-users] TimeLimit parameter

[Brian Andrus]

With regards to the lua scripting, yes, you can modify a job and set the 
time limit to something if it is not appropriate.
Treydock has one that does exactly that (among other things) at 
https://gist.github.com/treydock/b964c5599fd057b0aa6a#file-job_submit-lua

You will have to distill the parts you need out of it.

Brian Andrus

On 12/3/2021 2:11 AM, Gestió Servidors wrote:
>
> Hi,
>
> Answering between lines...
>
> > Hi;
>
> >
>
> > The EnforcePartLimits parameter in slurm.conf, should be set to ALL 
> or ANY
>
> > to enforce time limit for partition.
>
> >
>
> > Regards.
>
> >
>
> > Ahmet M.
>
> I have not configured "EnforcePartLimits" in my slurm.conf file, so I 
> suppose that my SLURM is running with "default" value "NO", so my job 
> will be accept and remain queued until the partition limits are 
> altered (as SLURM documentation says and me too ;) )
>
> >I look at it this way (so it makes sense):
>
> >
>
> >It goes into a pending state because it is possible for the time to 
> become available (you could just run a command that increases the
>
> >timelimit) so it is waiting for that to happen. This is useful 
> because you may have some users have a job that does indeed need to go 
> that long, but they have to let you know to allow it to happen.
>
> >
>
> >If you do not want ANY jobs to queue up if they are asking for more 
> time than is available, you can add some code to the job_submit.lua
>
> >
>
> >Here is a snippet from mine:
>
> >
>
> >?? if time_limit > part_max_time then
>
> > ?????? slurm.log_info("job from uid %d with request for more than
>
> >max_time: Denying.",job_desc.user_id)
>
> > ?????? slurm.log_user("You cannot request more than %s minutes in 
> partition %s!!", part_max_time, partition)  ?????? return 
> slurm.ESLURM_INVALID_TIME_LIMIT  ?? end>
>
> >
>
> >The time_limit, part_max_time and partition variables are mapped from 
> job_desc and part_list
>
> >
>
> >Brian Andrus
>
> I think solution modifying “lua” script is a good solution. Could I do 
> something like this?
>
> if time_limit > part_max_time then
>
> slurm.log_info("job from uid %d with request for more than max_time: 
> Reconfiguring your job.",job_desc.user_id)
>
> slurm.log_user("You cannot request more than %s minutes in partition 
> %s!!", part_max_time, partition)
>
> time_limit=part_max_time
>
> end
>
> return slurm.ESLURM_INVALID_TIME_LIMIT
>
> In other words: if a user submits a jobs with TimeLimit bigger than 
> partition TimeLimit, assign partition TimeLimit to his/her job.
>
> Thanks.
>
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