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<p class="MsoNormal">Hi:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The below might be a starting point. There could be syntax or core<o:p></o:p></p>
<p class="MsoNormal">concept errors :).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">- Make two partitions. Both of them contain all nodes of interest:<o:p></o:p></p>
<p class="MsoNormal"> bigger_p<o:p></o:p></p>
<p class="MsoNormal"> smaller_p<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">- Make two reservations, like<o:p></o:p></p>
<p class="MsoNormal"> scontrol create reservationname=20core_res Partition=bigger_p CoreCnt=20<o:p></o:p></p>
<p class="MsoNormal"> scontrol create reservationname=16core_res Partition=smaller_p CoreCnt=16<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">- Tell the users, or job_submit.lua, to have 'bigger_p' jobs<o:p></o:p></p>
<p class="MsoNormal"> request '20core_res', and 'smaller_p' jobs request '16core_res'<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For ACL and/or granular resource limit control, you could make<o:p></o:p></p>
<p class="MsoNormal">bigger_qos and smaller_qos, and define those as 'QOS' in the matching<o:p></o:p></p>
<p class="MsoNormal">PartitionName entries. Then add whatever ACL or limits you want to<o:p></o:p></p>
<p class="MsoNormal">those QOSes. Or use the PartitionName entries if the available<o:p></o:p></p>
<p class="MsoNormal">options suffice.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:black">-- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Paul Brunk, system administrator</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:black">Georgia Advanced Resource Computing Center<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Enterprise IT Svcs, the University of Georgia<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">On 2/11/22, 10:48 AM, "slurm-users" <slurm-users-bounces@lists.schedmd.com> wrote:<o:p></o:p></p>
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<p class="MsoNormal">[EXTERNAL SENDER - PROCEED CAUTIOUSLY]<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I see at <a href="https://slurm.schedmd.com/cons_res_share.html">
https://slurm.schedmd.com/cons_res_share.html</a> that there are some ways to share a node between partitions but I don't see how to specify a set number of cores to each partition. Is this possible? If I have some nodes with 36 cores, is there a way to make
16 of them be in one partition and 20 be in the other?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Steve<o:p></o:p></p>
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