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Re: [Condor-users] Blocking Resources



Hi,

 

Is it possible to do the following using condor?

 

Block a few machines;

Use them for some jobs, say MPI jobs;

Release a subset (or) acquire more machines

Use them for some more jobs

Iterate like this before finally relinquishing all resources…

 

Can such a thing be possible with Condor?


You can do something pretty close to this with the parallel universe.

See the manual section "Condor's Dedicated Scheduling"

http://research.cs.wisc.edu/condor/manual/v7.8/3_12Setting_Up.html#SECTION004129000000000000000

for details on how to set this up.  The biggest difference from your request is that you can't release
a subset, you must release all of the machines allocated to your parallel job at once.  However, the
machines stay claimed by the schedd for a while, so if you release the machine, then request more within
a short time frame, the request should be serviced quickly.

-greg