[Swift-user] Job bundles

Ben Clifford benc at hawaga.org.uk
Tue Nov 6 12:15:06 CST 2007

On Tue, 6 Nov 2007, Ioan Raicu wrote:

> 2) the LRM allows the partitioning of the SMP machine into smaller pieces; for
> example, with 8 processor node, if it lets you submit 8 jobs that only need 1
> processor, and it will launch 8 different jobs on the same node, then you are
> fine... the parallelism will be done automatically by the LRM, as long as you
> ask for only 1 process at a time; on the TG at least, I don't think this is
> how things work, and when you get a node, regardless of how many processors it
> has, you get full access to all processors, not just the ones you asked for.

PBS allows the specification of multiple processes per node, like this 
(grabbed from google)

> qsub -l walltime=15:00,nodes=1:ppn=1 script.pbs

It looks like abe runs PBS.

So I think you could specify a globus profile key in the sites.xml, 
perhaps something like this:

 <profile namespace="globus" key="ppn">8</profile>

I haven't tried this myself, but I'd be interested to hear your results.

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