[slurm-users] clarification on slurm scheduler and the "nice" parameter

mercan ahmet.mercan at uhem.itu.edu.tr
Tue Apr 14 13:56:55 UTC 2020


Hi;

Did you restart slurmctld after changing 
"PriorityType=priority/multifactor"?

Also your nice values are too small. It is not unix nice. Its range is 
+/-2147483645, and it race with other priority factors at priority 
factor formula. Look priority factor formula at 
https://slurm.schedmd.com/priority_multifactor.html

Because of that, I think you should test with very high numbers for low 
priority nice such as --nice 100000.

Regards;

Ahmet M.


14.04.2020 16:18 tarihinde Matteo F yazdı:
> Hello Lyn, thanks for your reply.
> I checked my configuration; the PriorityType was set to 
> "PriorityType=priority/basic" initially, so my tests refer to that 
> configuration.
> After you post, I set it to "PriorityType=priority/multifactor" and 
> ran the tests again: the results are the same.
> I was hoping to find a quick fix but it seems that I need to dig into 
> the docs and play with the "factors".
> Matteo



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