[GE users] app that uses all cores on a host

cjf001 john.foley at motorola.com
Wed Aug 19 15:36:18 BST 2009


Guys -

Don't know if this is common or easy or not, but I figured I'd ask here
first....

I'm adding a new app to our cluster - Agilent's "Momentum". This simulator
just runs on a single host at a time (ie, no parallel environment), but
it's "smart" enough to use all the available CPUs and cores on the host
it's running on.

So, I think this is going to be a problem for SGE. It's going to think
it's assigning a job to 1 slot, when in reality it's going to use all
the slots on that host. Also, on the flip side, if there's a single slot
available on a multi-core host, it might assign the Momemtum job to that
slot, but then Momentum will take over all the cores and interfere with
the other jobs running there.

Is there a graceful way of handling this kind of app ? I'm using SGE6.2_u2.

     Thanks,

       John



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