[torquedev] Job array feature request
csamuel at vpac.org
Fri Nov 16 12:28:52 MST 2007
I'm on the plane from Reno to LA talking to some of the Matlab DCE
developers (Jos & Edric who are copied in on this email) who
integrate to various queuing systems such as PBS, LSF, etc.
They asked about job array support and said that they have a couple of
features that they'd really like from job array support in Torque.
Not having played with job arrays yet I don't know if these are
already working or in the works so I thought I'd ask first.. :-)
1) Non-contiguous job arrays.
In a Matlab DCE job the job array index has meaning and so for systems
that only support contiguous arrays they have to do a hack to map the
job array index back to the Matlab DCE index.
The syntax that LSF uses for this and could be a good guide for Torque
is to use dashes to separate contiguous sections and then commas for
non contiguous parts.
2) Single task job arrays.
They would also really like to have the ability to submit a job array
with a single user specified index so that they don't need to special
case these. One issue they have with PBSPro at the moment is that it
requires a job array to have at least 2 elements.
Jos, Edric, please feel free to jump in and correct any mistakes
above - the list is pretty low traffic so don't be afraid to
participate either.. :-)
Christopher Samuel - (03) 9925 4751 - Systems Manager
The Victorian Partnership for Advanced Computing
P.O. Box 201, Carlton South, VIC 3053, Australia
VPAC is a not-for-profit Registered Research Agency
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