[torqueusers] policy not working as expected?
brandor5 at gmail.com
Wed Mar 7 08:34:46 MST 2012
I posted this to mauiusers a couple of days ago but have seen no reply.
We are bringing up a new system and are running into an issue with maui.
We want jobs to behave like this. A user requests a number of nodes
regardless of ppn and gets that number of nodes (nodes=6:ppn=1). At the
same time, we want only one job to be running on a node at one time. So
that user would get 6 nodes and no other jobs would be able to run on those
nodes while that job is running. Even though that user is only using 1 of
the available cores.
We expected the following two config changes to make this happen.
While only one job will run on a node like we want, but (using the example
above) all 6 cores of that node are getting used, instead of using 1 core
on 6 different nodes.
Interestingly, the following nodes=1:ppn=1 gives me 1 core from 1 node.
nodes=1:ppn=(2-6) gives me 6 cores.
Something to be aware of, when I say node, I mean numa node.
What are we missing?
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