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<p class="MsoNormal">(originally posted at <a href="https://bugs.schedmd.com/show_bug.cgi?id=10322">
https://bugs.schedmd.com/show_bug.cgi?id=10322</a>)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">There are some great tools for assigning discounts or penalties to jobs before they are allocated resources (QOS.UsageFactor, Partition.TRESBillingWeights, etc.).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">But what if I want to change the cost of a job <b>after the fact</b>? I might want to avoid penalizing users who spent their allocated resources on jobs which failed due to reasons outside their control (hardware failure, parallel FS glitch,
etc.). Or I might want to charge extra for jobs which require node reboots to cleanup afterwards. Either way, I want to be able to adjust how the job affects their current fairshare priority for queued jobs.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Are there any existing solutions for this?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The only solutions I've found so far are:<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">'sacctmgr modify ... set RawUsage=0' - obviously this is too big of a hammer. I only want to edit a single job, and I might want to *increase* the usage for the job - not decrease
it.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">For clusters using "banking" (limits on TRESMins and PriorityDecayHalfLife=0), you can essentially accomplish this by editing the limit after the fact (increasing the limit for a refund,
decreasing it for a penalty). See <a href="https://github.com/jcftang/slurm-bank/blob/master/src/sbank-refund">
https://github.com/jcftang/slurm-bank/blob/master/src/sbank-refund</a>, for example. But we don't use that accounting strategy at our site. And that seems a little sketchy anyway since you’d need to remember to reset the limits back to their intended values
at each usage reset.<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The official answer I got on the bug is “I don't think what you are looking for is possible with Slurm at the moment.”
<b>I’m posting here in hopes that someone else has a creative solution?</b> How do y’all handle this?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks!<o:p></o:p></p>
<p class="MsoNormal">Luke<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Search keywords: priority bump refund penalty accounting<o:p></o:p></p>
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