Preparing ATLAS reconstruction software for LHC's Run 2

21st International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Mitrevski, Jovan^1

Excellence Cluster Universe, Ludwig-Maximilians-Universität Munchen, Boltzmannstraße 2, Garching

85748, Germany^1

关键词: ATLAS experiment;    Computing budget;    Execution time;    Reconstruction algorithms;    Reconstruction software;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/664/7/072034/pdf
DOI  :  10.1088/1742-6596/664/7/072034

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

In order to maximize the physics potential of the ATLAS experiment during LHC's Run 2, the reconstruction software has been updated. Flat computing budgets required a factor of three improved execution time, while the new xAOD data format forced changes in the reconstruction algorithms. Physics performance was also made better. This paper presents an overview of the improvements made to the reconstruction software during the long shutdown of the LHC.