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Batch Scheduling Workshop HEPiX Karlsruhe May 12 th /13 th 2005 Tony.Cass@ CERN .ch

Batch Scheduling Workshop HEPiX Karlsruhe May 12 th /13 th 2005 Tony.Cass@ CERN .ch. Why?. Local batch schedulers use a great deal of information to share out resources amongst competing users and maintain high levels of resource usage.

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Batch Scheduling Workshop HEPiX Karlsruhe May 12 th /13 th 2005 Tony.Cass@ CERN .ch

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  1. Batch Scheduling WorkshopHEPiX KarlsruheMay 12th/13th 2005Tony.Cass@CERN.ch

  2. Why? • Local batch schedulers use a great deal of information to share out resources amongst competing users and maintain high levels of resource usage. • Grid scheduling is very simplistic, routing jobs to a site with an idle CPU (perhaps with the right data available). • How do we bridge the gap? • Question by LHCC member at gLite demo, Tuesday: • “If there is an urgent analysis, how does gLite send this to a special job queue?”

  3. Sessions • Thursday AM • Description of how different local schedulers are used at HEP sites. • What are the common queue management features? • Thursday PM • What is the impact of today’s simplistic Grid scheduling? • How do local and Grid-level scheduler developers see the future? • Friday • Discussion • Can/how do we move towards better Grid scheduling? • Can we define common HEP environment variables to ease transfer of jobs between sites?

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