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I am a systems administrator for a computing cluster.</div>
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We have around 24 nodes available, recently adding a whole new updated cluster with upgraded nodes.</div>
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We use an interactive node that will randomly select from our list of computing nodes to complete the job. We would like to find a way to select from our list of old nodes first, before using the newer ones. We tried using weight and assigned each of the old
nodes a lower weight than the new nodes, but in testing the new nodes were still assigned, even if the old nodes were available.</div>
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Is there any way to configure this in the line that configures the interactive node in slurm.conf, for example: </div>
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PartitionName=interactive-cpu Nodes=node[1-17] weight =10 node[18-24] weight=50</div>
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Or is there a way to create subpartitions where we could put the older nodes into a partition within this one?</div>
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Thank you for any feedback.</div>
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