[Mauiusers] Advice On Configuration of Two Independent Clusters With Single Maui Instance

Gareth.Williams at csiro.au Gareth.Williams at csiro.au
Tue Aug 31 16:59:41 MDT 2010


> -----Original Message-----
> From: Jan Erik Sundermann [mailto:j.sundermann at gmail.com] 
> Sent: Tuesday, 31 August 2010 7:22 PM
> To: mauiusers at supercluster.org
> Subject: [Mauiusers] Advice On Configuration of Two 
> Independent Clusters With Single Maui Instance
> 
> Hi
> 
> we have a cluster of nodes which is split into two independent sets of
> nodes. Each node set is accessible via a specific queue in torque. The
> mapping (queue<->node) is done with node attributes in
> /var/spool/pbs/server_priv/nodes, e.g. "set queue myQueueA
> resources_default.neednodes = mynodeA" and "set queue myQueueB
> resources_default.neednodes = mynodeB".
> 
> We observe the following problem: If many high priority jobs are
> waiting for execution in myQueueA, low priority jobs sent to myQueueB
> are blocked by maui even if the subcluster B is empty. I would expect
> maui to handle jobs sent to queue A and queue B independently but in
> our configuration this doesn't seem to be the case.
> 
> Do you have some advice on how to configure maui in a more 
> efficient way?
> 
> 
> Cheers
> Jan Erik

Hi Jan,

You might be able to use MAXIJOB to have maui look further down the list of queued jobs (by decreasing the number of jobs it will consider at any time for a given queue or user).

Good luck,

Gareth


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