AliEn: ALICE Environment on the GRID


AliEn is the GRID middleware used by the ALICE collaboration. It provides all the components that are needed to manage the distributed resources. AliEn is used for all the computing workflows of the experiment: Montecarlo production, data replication and reconstruction and organixed or chaotic user analysis. Moreover, AliEn is also being used by other experiments like PANDA and CBM.

The main components of AliEn are a centralized file and metadata catalogue, a job execution model and file replication model. These three components have been evolving over the last 10 years to make sure that the satisfy the computing requirements of the experiment, which keep increasing every year.

This contribution will present the current status of the AliEn components, with special emphasis on the latest development, in particular data handling. We will also outline the future development plans.




Pablo Saiz


ZHU, Jianlin (Central China Normal University (CN)) SCHREINER, Steffen (Technische Universitaet Darmstadt (DE)) GRIGORAS, Costin (CERN) GRIGORAS, Alina Gabriela (CERN) BETEV, Latchezar (CERN) CARMINATI, Federico (CERN) PORTER, Jeff (Lawrence Berkeley National Lab. (US)) MONTIEL GONZALEZ, Almudena Del Rocio (GSI - Gesellschaft fuer Schwerionen forschung (GSI)) BAGNASCO, Stefano (I.N.F.N. TORINO) GOYAL, Dushyant (LNM Institute of Information Technology (IN)) ABRAMYAN, Armenuhi (Yerevan Physics Institute) BANERJEE, Subho Sankar (LNM Institute of Information Technology) MANUKYAN, Narine (A.I. Alikhanyan National Scientific Laboratory (AM))


Distributed Processing and Analysis on Grids and Clouds

Presentation type




-- PabloSaiz - 28-Oct-2011

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Topic revision: r1 - 2011-10-28 - PabloSaiz
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