[slurm-users] How to set association factor in Multifactor Priority

[Marcus Boden]

Hi Jianwen,

yes, you can give different accounts or users specific extra-priorities.
You can set it via sacctmgr:
https://slurm.schedmd.com/sacctmgr.html#SECTION_GENERAL-SPECIFICATIONS-FOR-ASSOCIATION-BASED-ENTITIES
(scroll down to 'Priority')
Priority
    What priority will be added to a job's priority when using this
association. This is overridden if set directly on a user. Default is
the cluster's limit. To clear a previously set value use the modify
command with a new value of -1.

Best,
Marcus

On 9/24/20 4:35 AM, SJTU wrote:
> Hi,
> 
>     I found that a new "Association Factor" is introduced in 19.05 to be part of Job_priority calculation. Can I set it for each SLURM account so job priority can be differentiated based on job accounts?
> 
>       https://groups.google.com/g/slurm-users/c/nzF8jOPZI_w/m/vj2wkUryBgAJ <https://groups.google.com/g/slurm-users/c/nzF8jOPZI_w/m/vj2wkUryBgAJ>
>       https://slurm.schedmd.com/priority_multifactor.html#assoc <https://slurm.schedmd.com/priority_multifactor.html#assoc>
> 
>     Association Factor
>     Each association can be assigned an integer priority. The larger the number, the greater the job priority will be for jobs that request this association. This priority value is normalized to the highest priority of all the association to become the association factor.
> 
>     Job_priority =
> 	site_factor +
> 	(PriorityWeightAge) * (age_factor) +
> 	(PriorityWeightAssoc) * (assoc_factor) +
> 	(PriorityWeightFairshare) * (fair-share_factor) +
> 	(PriorityWeightJobSize) * (job_size_factor) +
> 	(PriorityWeightPartition) * (partition_factor) +
> 	(PriorityWeightQOS) * (QOS_factor) +
> 	SUM(TRES_weight_cpu * TRES_factor_cpu,
> 	    TRES_weight_<type> * TRES_factor_<type>,
> 	    ...)
> 	- nice_factor
> 
> 
> Thank you!
> 
> Jianwen
> 

-- 
Marcus Vincent Boden, M.Sc.
Arbeitsgruppe eScience, HPC-Team
Tel.:   +49 (0)551 201-2191, E-Mail: mboden at gwdg.de
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