Scalability and interoperability within glideinWMS

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Physicists have access to thousands of CPUs in grid federations such as OSG and EGEE. With the start-up of the LHC, it is essential for individuals or groups of users to wrap together available resources from multiple sites across multiple grids under a higher user-controlled layer in order to provide a homogeneous pool of available resources. One such system is glideinWMS, which is based on the Condor batch system. A general discussion of glideinWMS can be found elsewhere. Here, we focus on recent advances in extending its reach: scalability and integration of heterogeneous compute elements. We demonstrate that the new ... continued below

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9 pages

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Bradley, D.; /Wisconsin U., Madison; Sfiligoi, I.; /Fermilab; Padhi, S.; /UC, San Diego et al. January 1, 2010.

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Physicists have access to thousands of CPUs in grid federations such as OSG and EGEE. With the start-up of the LHC, it is essential for individuals or groups of users to wrap together available resources from multiple sites across multiple grids under a higher user-controlled layer in order to provide a homogeneous pool of available resources. One such system is glideinWMS, which is based on the Condor batch system. A general discussion of glideinWMS can be found elsewhere. Here, we focus on recent advances in extending its reach: scalability and integration of heterogeneous compute elements. We demonstrate that the new developments exceed the design goal of over 10,000 simultaneous running jobs under a single Condor schedd, using strong security protocols across global networks, and sustaining a steady-state job completion rate of a few Hz. We also show interoperability across heterogeneous computing elements achieved using client-side methods. We discuss this technique and the challenges in direct access to NorduGrid and CREAM compute elements, in addition to Globus based systems.

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9 pages

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  • Journal Name: J.Phys.Conf.Ser.219:062036,2010; Conference: Prepared for 17th International Conference on Computing in High Energy and Nuclear Physics (CHEP 09), Prague, Czech Republic, 21-27 Mar 2009

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  • Report No.: FERMILAB-CONF-10-258-CD
  • Grant Number: AC02-07CH11359
  • DOI: 10.1088/1742-6596/219/6/062036 | External Link
  • Office of Scientific & Technical Information Report Number: 986995
  • Archival Resource Key: ark:/67531/metadc1014081

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  • January 1, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 24, 2017, 3:04 p.m.

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Bradley, D.; /Wisconsin U., Madison; Sfiligoi, I.; /Fermilab; Padhi, S.; /UC, San Diego et al. Scalability and interoperability within glideinWMS, article, January 1, 2010; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc1014081/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.