[gridengine users] Kicking off servers via Grid Engine

Jesse Becker beckerjes at mail.nih.gov
Tue Apr 3 17:03:03 UTC 2012


How about using a prologue script to setup your environment before
running the job?  


On Tue, Apr 03, 2012 at 12:56:47PM -0400, Earl Lazarus wrote:
>Our environment is a linux cluster with 4 CPUs per machine.  We are changing the architecture of a Monte Carlo simulation that we routinely run via Grid Engine.  In the new paradigm, each instance will need to communicate via sockets with an "Environment Server" running on the host where the sim executes.  We need to kick off these environment servers prior to submitting the simulation jobs.  These servers are basically inactive unless queried by one of the sims.  We also want to allow the environment servers to run possibly for days or weeks at a time as they are low impact.
>
>However, what I really want to do is kick off an environment server on a host and not have it count against the "slot count" for that host.  There will be instances where I might need 4 different environment servers running on each host.  Unfortunately that would occupy all of my slots and NONE of my simulations would ever run!!
>
>I have seen the concept of "Parallel Environments" in the SGE User Manual, but the explanation is pretty much worthless.
>
>Bottom line...I need to pre-position some executables on each host without consuming slots.   Note that I tried to kick them off in a script of the form:
>
>sppe &
>exit
>
>but Grid Engine monitors jobs placed in the background and kills them!
>
>The possibility of avoiding Grid Engine entirely and kicking them off with rsh/ssh is something we want to avoid.
>
>earl

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-- 
Jesse Becker
NHGRI Linux support (Digicon Contractor)
:(){ :&:};:



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