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On 05/02/14 09:27, Lyn Gerner wrote:

> You might check out the Weight parameter in the Node section of the
>  slurm.conf documentation.  I believe you could just give the fat nodes
> a higher node weight than the thinner nodes, to achieve your goal.

We use it to ensure that our Xeon Phi nodes are allocated after nodes
that don't have them, and that our 512GB nodes are allocated after the
256GB nodes.   Of course the 1 node that has both Xeon Phi AND 512GB is
very heavily weighted against. :-)

Here's the snippet from our slurm.conf (you can see from the Gres and
RealMemory directives which are which):

NodeName=barcoo[001-058] NodeAddr=barcoo[001-058] RealMemory=250000 Weight=2
NodeName=barcoo[059-060] NodeAddr=barcoo[059-060] RealMemory=500000 Weight=1000
NodeName=barcoo061       NodeAddr=barcoo061       RealMemory=500000 Gres=mic:2 
Weight=100000
NodeName=barcoo[062-070] NodeAddr=barcoo[062-070] RealMemory=250000 Gres=mic:2 
Weight=100

cheers,
Chris
- -- 
 Christopher Samuel        Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: sam...@unimelb.edu.au Phone: +61 (0)3 903 55545
 http://www.vlsci.org.au/      http://twitter.com/vlsci

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