CERN Accelerating science

CMS Note
Report number	CMS-CR-2020-021
Title	CMS Experience with Adoption of the Community supported DD4hep Toolkit
Author(s)	Vuosalo, Carl Onni Urho (Wisconsin U., Madison) ; Banerjee, Sunanda (Fermilab) ; Frank, Markus (CERN) ; Ivanchenko, Vladimir (CERN ; Tomsk State U.) ; Lo Meo, Sergio (ENEA, Bologna ; INFN, Bologna) ; Osborne, Ianna (Princeton U., Chem. Eng. Dept. ; Princeton U.) ; Vargas Hernandez, Andres (Catholic U.)
Collaboration	CMS Collaboration
Publication	2020
Imprint	27 Jan 2020
Number of pages	7
In:	EPJ Web Conf. 245 (2020) 02032
In:	24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019, pp.02032
DOI	10.1051/epjconf/202024502032
Subject category	Detectors and Experimental Techniques ; Computing and Computers
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	DD4hep is an open-source software toolkit that provides comprehensive and complete generic detector descriptions for high energy physics (HEP) detectors. The Compact Muon Solenoid collaboration (CMS) has recently evaluated and adopted DD4hep to replace its custom detectordescription software. CMS has demanding software requirements as a very large, long-running experiment that must support legacy geometries and study many possible upgraded detector designs of a constantly evolving detector that will be taking data for many years to come. CMS has chosenDD4hep since it is a high-quality, community-supported solution that will benefit from continuing modernization and maintenance. This presentation will discuss the issues of DD4hep adoption, the advantages and disadvantages of the various design choices, performance results, and the integration of the plugin systems from CMS and Gaudi, another open-source software framework. Recommendations about DD4hep based upon the CMS use cases will also be presented.
Copyright/License	© 2020-2024 The Authors (License: CC-BY-4.0)

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