[gridengine users] "Packing" jobs on nodes

James Gladden gladden at chem.washington.edu
Fri Jun 3 16:19:23 UTC 2011


Yup - been there, done that.  On all my execution hosts I have set 
"slots" to 8 since they are 8 core machines.  The command "qhost -F 
slots" does indeed tell me the number of currently available slots on 
each host - 8 for an empty node, zero for a fully occupied node, or 
something in between as the case may be.  This actually relates to 
another thread regarding preventing over-subscription when an execution 
host serves multiple cluster queues.

So have you actually observed job packing to work on your cluster(s)?


On 6/3/2011 7:35 AM, CB wrote:
> Hi James,
> I jumped in this thread later but I'm not sure if you already made the
> following change. This configuration change is necessary to make
> GridEngine to pack your job on a node.
> You need to add the following in your exechost configuration:
> complex_values   slots=<Nslots>
> If you execute the following command, it will show whether it is added or not.
> qhost -F slots
> Regards,
> - Chansup
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