[slurm-users] Assigning a QOS to a partition?

[Prentice Bisbal]

Miguel,

Thanks for the reply. I've already thought about doing that, but I was 
hoping there was an easier, "more universal" way of doing that. Right 
now, I have a rather long job_submit.lua, which has made making changes 
in my environment cumbersome, so I'm trying to minimize my reliance on 
job_submit.lua as much as possible.

It looks like the best way to do this to use sacctmgr to make "general" 
the default QOS, which I just did.

Prentice

On 1/30/19 6:48 AM, Miguel Gila wrote:
> Hi Prentice,
>
> You could add something like this to your job_submit.lua
>
> QOS_DEBUG                     = ’system_debug'
> PARTITION_DEBUG               = ‘debug'
> [...]
> function slurm_job_submit(job_desc, part_list, submit_uid)
>   -- ------------------------ DEBUG/QOS -------------------------------
> if (job_desc.partition) and (job_desc.partition == PARTITION_DEBUG) then
>   slurm.log_info("::slurm_job_submit partition DEBUG. Original QOS: 
> %s, new QOS: %s”, job_desc.qos, QOS_DEBUG)
>   job_desc.qos=QOS_DEBUG
>   slurm.log_user(“Setting QoS=%s for this job.”,QOS_DEBUG)
> end
> [...]
>
> Hope this helps.
>
> Miguel
>
>> On 29 Jan 2019, at 16:27, Prentice Bisbal <pbisbal at pppl.gov 
>> <mailto:pbisbal at pppl.gov>> wrote:
>>
>> How does one assign a QOS to a partition? This is mentioned several 
>> different places in the Slurm documentation, but nowhere does it 
>> explain exactly how to do this.
>>
>> You can assign a QOS to a partition in slurm.conf like this:
>>
>> PartitionName=mypartition Nodes=node[001-100] QOS=myqos
>>
>> But that doesn't seem to really do much. And the explanation for 
>> defining a QOS in a partition definition, while rather vague, seems 
>> to state as much:
>>
>>
>>> *QOS*
>>>     Used to extend the limits available to a QOS on a partition.
>>>     Jobs will not be associated to this QOS outside of being
>>>     associated to the partition. They will still be associated to
>>>     their requested QOS. By default, no QOS is used. *NOTE:* If a
>>>     limit is set in both the Partition's QOS and the Job's QOS the
>>>     Partition QOS will be honored unless the Job's QOS has the
>>>     *OverPartQOS* flag set in which the Job's QOS will have priority. 
>>>
>>
>> If I want to have every job that requests the partition "mypartition" 
>> use the QOS "myqos", how do I do that?
>>
>> Also, can someone please explain to me the explanation of the QOS 
>> field in the partition definition I quoted above?
>>
>> -- 
>> Prentice
>
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