SMuK 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 151: Exp. Methods IV

T 151.5: Vortrag

Donnerstag, 23. März 2023, 18:30–18:45, WIL/C129

Geant4 Optimizations in ATLAS — •Mustafa Schmidt for the ATLAS collaboration — Bergische Universität Wuppertal

Production of Monte-Carlo simulations for ATLAS usually require large amount of computation time and result in huge memory consumption. In order to minimize the required resources, a dedicated Geant4 optimization task force works on optimizing the performance of the integrated Geant4 version in the ATLAS offline software framework Athena. After being founded in 2020, many optimizations have been implemented, mainly related to improvements of various physics lists, stepping parameters, and detector descriptions.

Recent developments cover a Woodcock tracking algorithm for improving the CPU time for photons in the calorimeter, and a proposal for a particle killer that stops propagating unimportant secondary particles in ATLAS. In addition, a Geant4 toolkit called FullSimLight has been developed which can run with various geometries including the most recent ATLAS detector geometry description. It contains many useful tools, such as a clash detection or a generator for geantino maps of the imported geometry. This talk covers the current status of the ongoing projects as well as an overview of future work packages.