[slurm-users] how to allocate high priority to low cpu and memory jobs

[z148x at arcor.de]

There aren't many mods in my slurm conf.

Since the priority/multifactor with PriorityWeightTres is already
active, it would be possible to take QOS.

Could you give a configuration example?
For example, jobs could occupy 1-128GB, i.e. categorization of ...16,
32, 64, 128 is necessary?
Two categories low and high would not be sufficient.


Many Thanks

Mike

On 28.01.22 09:21, Rémi Palancher wrote:
> ------- Original Message -------
> 
> Le mardi 25 janvier 2022 à 22:22, <z148x at arcor.de> a écrit :
> 
>> Dear all,
>>
>> how can I reverse the priority, so that jobs with high cpu and memory
>>
>> have a low priority?
>>
>> The Priority/Multifactor plugin it is possible to calculate high
>>
>> priority for high cpu and memory jobs.
>>
>> With PriorityFavorSmall, jobs with a lower cpu number have a high
>>
>> priority, but this only works for cpu, not memory.
> 
> Well, there are several options available for this use case, and the best choice mostly depends of your current configuration.
> 
> Additionnaly to Michael proposal with the partitions, you could also set up a QOS for low memory jobs, with a high priority and MaxTRESPerJob.
> 
> --
> Rémi Palancher
> Rackslab: Open Source Solutions for HPC Operations
> https://rackslab.io
>