22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

ATLAS Computing: From Commissioning to 7TeV Data

24 Jul 2010, 10:05
Salle 252A ()

Salle 252A

Parallel Session Talk 13 - Advances in Instrumentation and Computing for HEP 13 - Advances in Instrumentation and Computing for HEP


Graeme Andrew Stewart (University of Glasgow)


In this paper we summarise ATLAS operations from the STEP09 campaign in June 2009 through to ATLAS taking data in the first 7 TeV collisions at the LHC in 2010. We describe the lessons which were learned from the STEP09 challenge, both in proving which parts of the system were in good shape, but also in highlighting those areas which required improvement. We then describe the experience of ATLAS computing operations during the first LHC data taking era. The ATLAS experiment has successfully recorded, reconstructed, distributed and analysed millions of collision events delivered by the LHC at an unprecedent centre-of-mass energy of 7 TeV. The involved large-scale data processing operations, both the prompt reconstruction at Tier0 and the subsequent reprocessing campaigns in the Tier1 sites in the Grid, worked remarkably well.

Primary author

Michel Lefebvre (University of Victoria)

Presentation Materials