Speaker
Dr
Raja Nandakumar
(Rutherford Appleton Laboratory)
Description
The worldwide computing grid is essential to the LHC experiments in analysing the
data collected by the detectors. Within LHCb, the computing model aims to simulate
data at Tier-2 grid sites as well as non-grid resources. The reconstruction,
stripping and analysis of the produced LHCb data will primarily place at the Tier-1
centres. The computing data challenge DC06 started in May 2006 with the primary aims
being to exercise the LHCb computing model and to produce events which will be used
for analyses in the forthcoming LHCb physics book. This paper gives an overview of
the LHCb computing model and addresses the challenges and experiences during DC06.
The management of the production of Monte Carlo data on the LCG was done using the
DIRAC workload management system which in turn uses the WLCG infrastructure and
middleware. We shall report on the amount of data simulated during DC06, including
the performance of the sites used. The paper will also summarise the experience
gained during DC06, in particular the distribution of data to the Tier-1 sites and
the access to this data.
| Submitted on behalf of Collaboration (ex, BaBar, ATLAS) | LHCb |
|---|
Author
Dr
Raja Nandakumar
(Rutherford Appleton Laboratory)
Co-authors
Adria Casajus
(Universitat de Barcelona)
Andrei Tsaregorotsev
(Université d'Aix - Marseille II)
Andrew Cameron Smith
(University of Edinburgh)
Andrew Pickford
(University of Glasgow)
Angelo Carbone
(Italian National Institute of Nuclear Physics (INFN-Bologna), Italian INFN National Center for Telematics and Informatics (CNAF))
Besma M'charek
(Vrije Universiteit, Amsterdam)
Carmine Cioffi
(University of Oxford)
Cedric Potterat
(LPHE-IPEP, Lausanne)
Daniela Bortolotti
(Università & INFN, Bologna)
Davide Perego
(Universita degli Studi di Milano Bicocca, Milano)
Gennady Kuznetsov
(Rutherford Appleton Laboratory)
Gianluca Castellani
(CERN)
Joel Closier
(CERN)
Johan Blouw
(Physikalisches Institut, Heidelberg)
Marco Adinolfi
(H. H. Wills Physics Laboratory, Bristol)
Marcos Seco Miguelez
(Universidad de Santiago de Compostela)
Marianne Bargiotti
(CERN)
Nick Brook
(University of Bristol)
Philippe Charpentier
(CERN)
Ricardo Graciani Diaz
(Universitat de Barcelona)
Roberto Santinelli
(CERN)
Roland Bernet
(Universität Zürich)
Sergio Gomez
(Universitat de Barcelona)
Stuart Paterson
(CERN)
