[Ekhi-users] Ekhi SLURM configuration

[Inigo Aldazabal Mensa]

Hi all,

I just set up slurm accounting database, and as I expected (ahem) all
running and queued jobs were unaffected.

With this, Slurm is now taking into account all different factors
for the jobs' priorities, including the "fair-share" factor, i.e. your
job submission history with a decay half life of 7 days.

This will also allow us to setup different what is called Quality of
Services (Qos)  with different limits, weights, etc. (think of QoS as a
kind of partitions/queues). See an example at DIPC documentation;

http://dipc.ehu.es/cc/computing_resources/systems/atlas-edr/#qos-and-partitions

Now you can think on more elaborated schemes for the priorities, queues
etc. as this all has to be tuned, in case you find it necessary, of
course.

If interested, you can find more details about the Slurm
Multifactor Priority Plugin we are using at:

https://slurm.schedmd.com/priority_multifactor.html

Bests,

Iñgio


On Mon, 9 Nov 2020 19:38:16 +0100
Inigo Aldazabal Mensa <inigo.aldazabalm en ehu.eus> wrote:

> Hi all,
> 
> Finally other tasks preempted and made impossible for me to do the
> slurm changes in ekhi. I'd like to do it tomorrow or on Wednesday,
> I'll confirm you as it's done. As by my tests you should not notice
> anything regarding your running jobs, and your scripts will still work
> unchanged, at least by the moment. We'll later adjust priorities etc.
> 
> Bests,
> 
> Iñigo
> 
> On Wed, 4 Nov 2020 21:22:38 +0100 Inigo Aldazabal Mensa
> <inigo.aldazabalm en ehu.eus> wrote:
> 
> > Hi all,
> > 
> > I finally got to try Slurm job accounting changes in a test
> > environment and all jobs and user allocations seemed unaffected.
> > 
> > That being said, I'll like to be sure that you are not running any
> > important, deadline kind of job, just in case jobs get canceled,
> > even if they shouldn't.
> > 
> > So, if no one objects, my plan is to implement the changes in Slurm
> > next Monday the 9th. Speak now or forever hold your peace :-)
> > 
> > Bests,
> > 
> > Iñigo
> >   
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