Re: [HTCondor-users] sanity check on preemption

["Pezzarossi, Gianni" <gpezza2@xxxxxxxxxxxx>]

Like so:

StateTimer = (time() - EnteredCurrentState)
DAY = 86400
PREEMPTION_REQUIREMENTS = $(StateTimer) > (2 * $(DAY)) && RemoteUserPrio > SubmittorPrio * 1.2

And I'm 80% sure the job wasn't matching the slots. I guess the other question, suppose a job request is less than a slot, as in 4cpu/32G RAM and there is a slot with 8cpu/64G would it consider that a match?

-------------------------------------
Gianni Pezzarossi
Computational System Analyst
User Services:Research
Engineering IT Shared Services
University of Illinois @ Urbana-Champaign

-----Original Message-----
From: HTCondor-users <htcondor-users-bounces@xxxxxxxxxxx> On Behalf Of Todd L Miller
Sent: Wednesday, July 1, 2020 8:44 AM
To: HTCondor-Users Mail List <htcondor-users@xxxxxxxxxxx>
Subject: Re: [HTCondor-users] sanity check on preemption

> A job would not preempt by evicting a job, destroying partitioned slot, 
> and creating a new partitioned slot of a different size to match the new 
> job.

 	We tend to call the slot that was created as a result of dividing 
a partitionable slot a 'dynamic slot', but yes, you're generally right.

> For some context, I enabled preemption on a cluster with partitionable 
> slots with a PREEMPTION_REQUIREMENTS that looks if a job was running 
> longer than 48 hours and priority is 20% higher. However, there are jobs 
> that keep running after the 48 hour mark even when there are queued jobs 
> waiting to run.

 	I assume you've verified that (a) the queued jobs match the slots 
on which the >48 hour jobs are running and (b) that the owner of the 
queued jobs in fact has a priority that's 20% higher?  (How does your 
PREEMPTION_REQUIREMENTS determine that?)

- ToddM
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