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 language | English (US) |
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Pages (from-to) | 31-44 |
Number of pages | 14 |
Journal | Computer Physics Communications |
Volume | 140 |
Issue number | 1-2 |
DOIs | |
State | Published - 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