Architecture of a distributed real-time system to control large high-energy physics experiments
C. Gaspar, B.J. Franek, J.J. Schwarz · Scalable Computing Practice and Experience · 2001
The control of a large high energy physics experiment involves multiple domains with different requirements (some parts have to work in real time, some are safety critical, others have to be user-friendly). Usually these domains are engineered separately. In order to increase the operating efficiency and the reliability and maintainability of the system, Delphi project at CERN took a global approach in the design of the complete experiment control. This approach allowed for the interconnection of the various domains and led to a high degree of automation and an homogeneous interface to the full control system. This paper describes an architecture and a development framework that can handle the different and sometimes contradictory requirements of the different parts of the experiment's online system.