Difference: BatchDetails (5 vs. 6)

Revision 62013-01-16 - WilliamSeligman

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META TOPICPARENT name="Condor"

Details of running condor at Nevis

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Use the vanilla environment

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Unless you've specifically used the condor_compile command to compile your programs, you must submit your jobs in the "vanilla" universe. Any program that uses shared libraries cannot use condor_compile, and this includes most of the physics software at Nevis. Therefore, you are almost certainly required to have the following line in a command script:
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Unless you've specifically used the condor_compile command to compile your programs, you must submit your jobs in the "vanilla" universe. Any program that uses shared libraries cannot use condor_compile, and this includes most of the physics software at Nevis. Therefore, you are almost certainly required to have the following line in a command script:
 
universe = vanilla
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  The condor system is most efficient when it's handling a large number of small jobs. Long jobs tend to clog up the queues, and prevent others from doing their work.
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As of Feb-2010, there is no system that gives some groups or users higher priority than others. However, condor comes with a default scheme for adjusting user priorities; here are the details.
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As of Feb-2010, there is no system that gives some groups or users higher priority than others. However, condor comes with a default scheme for adjusting user priorities; here are the details.
  The practical upshots of condor's default priority scheme:
  • If you use condor a lot, other users will tend to get higher priority when they submit jobs.
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  • If you have a large number of jobs to submit, the slower machine can chug away at a couple of them while the rest are waiting to execute on the faster processors.
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The best way to tell Condor that you'd prefer your job to execute on the faster machines is to use the Rank attribute in your submit file:
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The best way to tell Condor that you'd prefer your job to execute on the faster machines is to use the Rank attribute in your submit file:
 
Rank = Mips
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With all that said, if you want to restrict your job to the faster machines, you can try a statement like the following in your submit file:
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With all that said, if you want to restrict your job to the faster machines, you can try a statement like the following in your submit file:
 
Requirements = (Mips > 2000) 

This would restrict your job to the fastest processors on the cluster.

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 condor_status -long slot1@batch04
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Another clue can come from using condor_q. If you have a job held with an ID of 44.20:
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Another clue can come from using condor_q. If you have a job held with an ID of 44.20:
 
condor_q -analyze 44.20
 
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