New operator assistance features in the CMS Run Control System
Name
Andre_2017_J._Phys.__Conf._Ser._898_032028.pdf
Description
Published version
Size
1.46 MB
Format
Adobe PDF
Checksum (MD5)
78b487ff590b485c85a7ce30568902fd
Author(s)
Andre, J-M
Behrens, U
Branson, J
Brummer, P
Chaze, O
Cittolin, S
Contescu, C
Craigs, B G
Darlea, G-L
Deldicque, C
Date Issued
October 2017
Journal
Journal of Physics: Conference Series
Publisher
IOP Publishing
Citation
Andre, J. M. et al. "New operator assistance features in the CMS Run Control System." Journal of Physics: Conference Series 898 (October 2017): 032028 © IOP Publishing Ltd
Version
Final published version
Abstract
During Run-1 of the LHC, many operational procedures have been automated in the run control system of the Compact Muon Solenoid (CMS) experiment. When detector high voltages are ramped up or down or upon certain beam mode changes of the LHC, the DAQ system is automatically partially reconfigured with new parameters. Certain types of errors such as errors caused by single-event upsets may trigger an automatic recovery procedure. Furthermore, the top-level control node continuously performs cross-checks to detect sub-system actions becoming necessary because of changes in configuration keys, changes in the set of included front-end drivers or because of potential clock instabilities. The operator is guided to perform the necessary actions through graphical indicators displayed next to the relevant command buttons in the user interface. Through these indicators, consistent configuration of CMS is ensured. However, manually following the indicators can still be inefficient at times. A new assistant to the operator has therefore been developed that can automatically perform all the necessary actions in a streamlined order. If additional problems arise, the new assistant tries to automatically recover from these. With the new assistant, a run can be started from any state of the sub-systems with a single click. An ongoing run may be recovered with a single click, once the appropriate recovery action has been selected. We review the automation features of CMS Run Control and discuss the new assistant in detail including first operational experience.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 3.0 unported license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/1742-6596/898/3/032028
