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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi Folks,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We have a simple small slurm cluster set up to facilitate a fair usage of the computing resources in our group. Simple in the sense that users only run exclusive jobs on single nodes so far. For fairness, we have set <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>MaxSubmitJobsPerUser=2<o:p></o:p></b></p><p class=MsoNormal><b>MaxJobsPerUser=2<o:p></o:p></b></p><p class=MsoNormal><b><o:p> </o:p></b></p><p class=MsoNormal>I would however like to change the policy in the following way:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Each user can submit as many jobs as he/she wants<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Only two nodes can be used by a single user at any given time, also enabling mpi jobs on up to two nodes<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>3)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Each job that a user has in the queue while being over the limit in 2) will be at the very last position in the queue<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>1)/2) are easy enough, I just get rid of <b>MaxSubmitJobsPerUser </b>and<b> </b>set <b>MaxTRESPerUser=”node=2”</b>. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have not come up with a good way to implement 3) though, I would like the following behavior:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>A)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>User X submits two jobs (Id 1 and 2) requiring two nodes each, #1 will start, #2 will be held back (QOSMaxNodePerUserLimit)<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>B)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Assume all nodes are taken now<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>C)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>User Y has no running or queued jobs and submits a job (Id #3)<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='mso-list:Ignore'>D)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Job #1 finishes, freeing up resources<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Current behavior: Job #2 starts, as it was submitted earlier<o:p></o:p></p><p class=MsoNormal>What I want: Job #3 should start first as User Y was not over their QOS limit while User X was at the time of submission<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My thinking: In this way, users could submit as many jobs as they want (which they would like for convenience reasons) without getting unfair precedence over others.<o:p></o:p></p><p class=MsoNormal>We want to distribute our resources as equally as possible.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Is something like this possible to achieve, does anyone have an idea how this could be done? I am happy to hear your thoughts<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Cheers,<o:p></o:p></p><p class=MsoNormal>Florian<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>