CMS software architecture - Software framework, services and persistency in high level trigger, reconstruction and analysis

V. Innocente, L. Silvestris, D. Stickland

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

This paper describes the design of a resilient and flexible software architecture that has been developed to satisfy the data processing requirements of a large HEP experiment, CMS, currently being constructed at the LHC machine at CERN. We describe various components of a software framework that allows integration of physics modules and which can be easily adapted for use in different processing environments both real-time (online trigger) and offline (event reconstruction and analysis). Features such as the mechanisms for scheduling algorithms, configuring the application and managing the dependences among modules are described in detail. In particular, a major effort has been placed on providing a service for managing persistent data and the experience using a commercial ODBMS (Objectivity/DB) is therefore described in detail.

Original languageEnglish (US)
Pages (from-to)31-44
Number of pages14
JournalComputer Physics Communications
Volume140
Issue number1-2
DOIs
StatePublished - Oct 15 2001

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • General Physics and Astronomy

Keywords

  • C++
  • CMS
  • Event reconstruction
  • HEP
  • LHC
  • Object oriented
  • ODBMS
  • Software architecture

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