Behrendt, J.

Karabowicz, R.

Montiel Gonzalez, A.

Schwarz, K.

GSI Repository

Annual activities in PandaGridR. Karabowicz1, J. Behrendt1, A. Montiel Gonza´lez1, and K. Schwarz11GSI, Darmstadt, GermanyAbstractPandaGrid, started as a project in 2005, and since thenproved itself to be a successful tool in large scale dataproduction for the Panda collaboration. The variety ofuse spans from individual jobs of more than 50 Panda-Grid users to massive physics simulation and reconstruc-tion for the Panda Technical Design Report. The passingyear stands for important changes in the structure of thePandaGrid.IntroductionThe single most defining event of 2012 was the with-drawal of the Glasgow University from the PandaGrid ac-tivities and movement of the Central Services to GSI andMonaLisa to Torino. The movement, although more chal-lenging than anticipated, consolidated and brought experi-ence to our GSI Grid group. In the course of last year 3 newsites joined PandaGrid: Mainz, SUT in Thailand and Talcain Chile. Currently we are in the process of integratingNorthwestern University, USA, as a new site. Altogetherthe infrastructure comprises 15 sites from 12 institutes in10 countries, see Fig. 1.Figure 1: Map of PandaGrid sites.Software and Middleware ToolsPandaGrid is based on AliEn [1], middleware developedand maintained by the ALICE Collaboration. The soft-ware for simulation and reconstruction, PandaRoot, baseson FairRoot [2], and is distributed on the Grid via built-in package management mechanism of AliEn. The systemsupervision and monitoring is provided by the MonaLisawebpage [3].Figure 2: PandaGrid usage.Testing and DevelopmentAs part of our obligation to the middleware developmentwe are testing and debugging the newest releases of AliEn.This year’s most important contributions included:• fixing the database structure description,• fixing the package manager,• migrating the communication message protocol fromSOAP to JSON,• implementing new fuctionalities.Numerous other issues have been reported to the AliEndevelopers. These changes helped keeping not only Panda-Grid stable, but also improved the original ALICE Gridperformance.ResultsThe PandaGrid running jobs in year 2012 are plotted inthe Figure 2 as a function of time.The close collaboration with the AliEn developmentgroup resulted in 2 PandaGrid Workshops in SUT, Thailandand Talca, Chile, where we focused on fixing and develop-ing AliEn as well as setup the new PandaGrid sites. In thecoming year we would like to focus on further consolidat-ing the existing infrastructure and integrating new sites.References[1] AliEn: http://alien2.cern.ch[2] FairRoot, M. Al-Turany et al, this report.[3] MonaLisa: http://serpiero.to.infn.itIT-08 GSI SCIENTIFIC REPORT 2012500

Annual activities in PandaGrid

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Annual activities in PandaGrid

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