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<body><div style="font-size:16px;">Hi All.<br></div>
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<div style="font-size:16px;">I'm having some trouble finding appropriate section of the documentation to change slurm resource allocation policy. <br></div>
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<div style="font-size:16px;">We have configured CPU and memory as consumable resources, and our nodes can run multiple jobs as long as there are CPU memory available. <br></div>
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<div style="font-size:16px;">What I want is for Slurm to spread jobs across all available servers in a partition instead of loading up few servers while others are idling. <br></div>
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<div style="font-size:16px;">For example, I have a partition nav which has 5 compute nodes(node[1-5]) dedicated to it. <br></div>
<div style="font-size:16px;">when users submit 3 jobs to nav partition, each requesting 1 CPU core and 1 GB of memory, SLURM schedules all the jobs in node1 because it has enough CPU cores and memory to satisfy job requirements. nodes - 2,3,4,5 are idle. <br></div>
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<div style="font-size:16px;">What I want instead is for slurm to schedule job1 to node1, job2 to node2, job3 to node3.. and then in the future if there are more jobs than there are nodes, slurm must utilise the rest of resources available in node1.<br></div>
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<div style="font-size:16px;">Why? <br></div>
<div style="font-size:16px;">A small group that is using this partition is concerned that all their jobs get scheduled on the same node, and they need to share network bandwidth, and bandwidth to local disk. If they were spread out instead, they could use better bandwidth. <br></div>
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<div style="font-size:16px;">Appreciate any advice how I can make this happen. <br></div>
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<div style="font-size:16px;">Thanks,<br></div>
<div id="sig56753105"><div class="signature"> Aravindh Sampathkumar<br></div>
<div class="signature"> aravindh@fastmail.com<br></div>
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