Heidelberg 2022 – scientific programme

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T: Fachverband Teilchenphysik

T 25: Data Analysis, Information Technology and Artificial Intelligence

T 25.7: Talk

Monday, March 21, 2022, 17:55–18:10, T-H38

Columnar data analysis with ATLAS analysis formats — •Nikolai Hartmann — Ludwig-Maximilians-Universität München

Future analysis of ATLAS data will involve new small-sized analysis formats to cope with the increased storage needs. The smallest of these, named DAOD_PHYSLITE, has calibrations already applied to allow fast downstream analysis and avoid the need for further analysis-specific intermediate formats. This allows for application of the “columnar analysis” paradigm where operations are applied on a per-array instead of a per-event basis. This presentation shows the latest developments of tools within the scientific python ecosystem and discusses a prototype analysis for testing both on single Machines as well as Analysis Facilities or similar scale-out systems.