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ABSTRACT

The adoption of a central database of MC events is motivated by simulation needs which are specific to the high energy physics domain. In general, the correct MC simulation of complex processes requires a rather sophisticated expertise. Often, different physics groups in various experimental collaborations approach the same experts and authors of MC generators, respectively, in order to generate MC samples for a particular physics process. Having these events stored in a public place along with the corresponding documentation, allows for direct cross checks of the performances on reference samples, and prevents possible waste of precious human and computing resources.

MAIN LCG MCDB FEATURES

  • Powerful WEB interface with Content Management System for the authors of event samples and their users
  • SQL structure of event sample documentation
  • Power SQL/XML based search engine
  • CASTOR as the native storage for the MC samples
  • Direct uploading of multiple files from AFS / CASTOR / GRID to LCG MCDB
  • Direct downloading of files from LCG MCDB with WEB / CASTOR / GRID paths (URI)
  • Flexible and reliable authorization system based on CERN AFS/Kerberos logins or LCG GRID certificates
  • BackUp of samples and SQL information
  • API to collaboration software (in progress)
  • HEPML. Unified events format and automatic parsing of event samples from different MC generators (in progress)

details are in hep-ph/0604120 pages 200-204 and in http://mcdb.cern.ch

-- Main.doudko - 16 Jul 2006

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Topic revision: r1 - 2006-07-16 - LevDudko
 
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