First operational experience with the CMS run control system

Author

Bauer, Gerry ; Beccati, Barbara ; Behrens, Ulf ; Biery, Kurt ; Branson, James ; Bukowiec, Sebastian ; Cano, Eric ; Cheung, Harry ; Ciganek, Marek ; Cittolin, Sergio ; Perez, Jose Antonio Coarasa ; Deldicque, Christian ; Erhan, Samim ; Gigi, Dominique ; Gl

Author_Institution

Massachusetts Inst. of Technol., Cambridge, MA, USA

fYear

2010

fDate

24-28 May 2010

Firstpage

1

Lastpage

5

Abstract

The Run Control System of the Compact Muon Solenoid (CMS) experiment at CERN´s new Large Hadron Collider (LHC) controls the sub-detector and central data acquisition systems and the high-level trigger farm of the experiment. It manages around 10,000 applications that control custom hardware or handle the event building and the high-level trigger processing. The CMS Run Control System is a distributed Java system running on a set of Apache Tomcat servlet containers. Users interact with the system through a web browser. The paper presents the architecture of the CMS Run Control System and deals with operational aspects during the first phase of operation with colliding beams. In particular it focuses on performance, stability, integration with the CMS Detector Control System, integration with LHC status information and tools to guide the shifter.

Keywords

Java; control systems; data acquisition; high energy physics instrumentation computing; multiprocessing systems; network operating systems; online front-ends; transition radiation detectors; Apache Tomcat servlet containers; CERN; CMS detector control system; CMS run control system; Compact Muon Solenoid; LHC status information; Large Hadron Collider; central data acquisition system; control system integration; control system performance; control system stability; custom hardware; distributed Java system; event building handling; high level trigger farm; high level trigger processing; subdetector system; web browser; Clocks; Control systems; Data acquisition; Detectors; Frequency modulation; Java; Large Hadron Collider;

fLanguage

English

Publisher

ieee

Conference_Titel

Real Time Conference (RT), 2010 17th IEEE-NPSS

Conference_Location

Lisbon

Print_ISBN

978-1-4244-7108-9

Type

conf

DOI

10.1109/RTC.2010.5750362

Filename

5750362