Andreeva, J. and Anjum, A. and Barrass, T. and Bonacorsi, D. and Bunn, J. and Capiluppi, P. and Corvo, M. and Darmenov, N. and De Filippis, N. and Donno, F. and Donvito, G. and Eulisse, G. and Fanfani, A. and Fanzago, F. and Filine, A. and Grandi, C. and Hernandez, J. M. and Innocente, V. and Jan, A. and Lacapara, S. and Legrand, I. and Metson, S. and Newman, H. and Newbold, D. and Pierro, A. and Silvestris, L. and Steenberg, C. and Stockinger, H. and Taylor, L. and Thomas, M. and Tuura, L. and Wildish, T. and Van Lingen, F. (2005) Distributed Computing Grid Experiences in CMS. IEEE Transactions on Nuclear Science, 52 (4). pp. 884-890. ISSN 0018-9499. http://resolver.caltech.edu/CaltechAUTHORS:ANDieeetns05
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The CMS experiment is currently developing a computing system capable of serving, processing and archiving the large number of events that will be generated when the CMS detector starts taking data. During 2004 CMS undertook a large scale data challenge to demonstrate the ability of the CMS computing system to cope with a sustained data-taking rate equivalent to 25% of startup rate. Its goals were: to run CMS event reconstruction at CERN for a sustained period at 25 Hz input rate; to distribute the data to several regional centers; and enable data access at those centers for analysis. Grid middleware was utilized to help complete all aspects of the challenge. To continue to provide scalable access from anywhere in the world to the data, CMS is developing a layer of software that uses Grid tools to gain access to data and resources, and that aims to provide physicists with a user friendly interface for submitting their analysis jobs. This paper describes the data challenge experience with Grid infrastructure and the current development of the CMS analysis system.
|Additional Information:||© 2005 IEEE. Reprinted with permission. Manuscript received November 15, 2004; revised March 24, 2005.|
|Subject Keywords:||Data flow analysis, data management, data processing, distributed computing, distributed information systems, high energy physics|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||18 Jan 2006|
|Last Modified:||26 Dec 2012 08:44|
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