Speaker
Marco Rovere
(CERN)
Description
The Data Quality Monitoring (DQM) Software proved to be a central tool
in the CMS experiment. Its flexibility allowed its integration in
several environments: Online, for real-time detector monitoring;
Offline, for the final, fine-grained Data Certification;
Release-Validation, to constantly validate our reconstruction
software; in Monte Carlo productions. The central tool to deliver Data
Quality information is a web site for browsing data quality histograms
(DQMGUI). In this presentation we will illustrate the usage of the DQM
Software in the different environments, its integration in the CMS
Reconstruction Software Framework (CMSSW) and in all production
workflows, focusing in particular on its interplay with the ROOT
package. Special attention will also be dedicated to the DQMGUI server
design and features, especially the web-based interactive rendering.
We discuss the main technical challenges and our solutions to them,
with emphasis on functionality, long-term robustness and performance.
We will also report our experience in operating the DQM systems over
the past years, its limitations and our suggestions in the view of the
upcoming CMS upgrades during the LHC long shutdown.
Author
Marco Rovere
(CERN)
