Speaker
Pablo Saiz
(CERN)
Description
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.
Summary
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.
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Primary author
Pablo Saiz
(CERN)
Co-authors
Alina Gabriela Grigoras
(CERN)
Almudena Del Rocio Montiel Gonzalez
(GSI - Gesellschaft fuer Schwerionen forschung (GSI))
Armenuhi Abramyan
(Yerevan Physics Institute)
Costin Grigoras
(CERN)
Dushyant Goyal
(LNM Institute of Information Technology (IN))
Mr
Federico Carminati
(CERN)
Jeff Porter
(Lawrence Berkeley National Lab. (US))
Jianlin Zhu
(Central China Normal University (CN))
Latchezar Betev
(CERN)
Narine Manukyan
(A.I. Alikhanyan National Scientific Laboratory (AM))
Dr
Stefano Bagnasco
(I.N.F.N. TORINO)
Steffen Schreiner
(Technische Universitaet Darmstadt (DE))
Subho Sankar Banerjee
(LNM Institute of Information Technology)
