[slurm-users] [External] Is it possible to set a default QOS per partition?

[Stack Korora]

On 3/1/21 4:26 PM, Prentice Bisbal wrote:
> Two things:
>
> 1. So your users are okay with specifying a partition, but specifying 
> a QOS is a bridge too far?

*sigh* Yeah. It's been requested several times. I can't defend it, but 
if it makes them happy...then they will find something else to complain 
about. (kidding... mostly :-D )

>
> 2. Have your job_submit.lua script filter the jobs into the correct 
> QOS. You can check the partition and set the QOS accordingly.
>
> First, you need to have this set in your slurm.conf:
>
> JobSubmitPlugins=job_submit/lua
>
> But I'm pretty sure that's the default setting.
>
> Since it looks like your partitions and corresponding QOSes have the 
> same names, you can just add this line to the slurm_job_submit 
> function body in your job_submit.lua script:
>
>   job_desc.qos = job_desc.partition
>
> And voila! Problem solved.
>
> After editing job_submit.lua, you'll need to restart slurmctld for the 
> changes to take effect. Also, it's a good idea to 'tail -f' 
> slurmctld.log while restarting - any errors with the syntax will be 
> printed there, and if there's any errors in that file, slumctld won't 
> start. 

Thank you! A great idea. I will give this a try.

~Stack~