Upgrades for the CMS simulation

D. J. Lange, M. Hildreth, V. N. Ivantchenko, I. Osborne

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations


Over the past several years, the CMS experiment has made significant changes to its detector simulation application. The geometry has been generalized to include modifications being made to the CMS detector for 2015 operations, as well as model improvements to the simulation geometry of the current CMS detector and the implementation of a number of approved and possible future detector configurations. These include both completely new tracker and calorimetry systems. We have completed the transition to Geant4 version 10, we have made significant progress in reducing the CPU resources required to run our Geant4 simulation. These have been achieved through both technical improvements and through numerical techniques. Substantial speed improvements have been achieved without changing the physics validation benchmarks that the experiment uses to validate our simulation application for use in production. In this presentation, we will discuss the methods that we implemented and the corresponding demonstrated performance improvements deployed for our 2015 simulation application.

Original languageEnglish (US)
Article number012056
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - May 22 2015
Externally publishedYes
Event16th International Workshop on Advanced Computing and Analysis Techniques in Physics Research: Bridging Disciplines, ACAT 2014 - Prague, Czech Republic
Duration: Sep 1 2014Sep 5 2014

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


Dive into the research topics of 'Upgrades for the CMS simulation'. Together they form a unique fingerprint.

Cite this