Operational experience with the new ATLAS HLT framework for LHC Run 3

Athena is the software framework used in the ATLAS experiment throughout the data processing path, from the software trigger system through offline event reconstruction to physics analysis. For Run 3 data taking (which started in 2022) the framework has been reimplemented into a multi-threaded frame...

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Bibliographic Details
Published in:EPJ Web of conferences 2024-01, Vol.295, p.2021
Main Author: Poreba, Aleksandra
Format: Article
Language:English
Subjects:
Data processing
Software
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Summary:Athena is the software framework used in the ATLAS experiment throughout the data processing path, from the software trigger system through offline event reconstruction to physics analysis. For Run 3 data taking (which started in 2022) the framework has been reimplemented into a multi-threaded framework. The ATLAS High Level Trigger (HLT) system has also been updated to rely to a greater extent than in Run 2 (data taking between 2015-2018) on common solutions between online and offline software. We present the now operational new HLT system, report on how the system was tested, commissioned and optimised. In addition, we show developments that have been made in tools that are used to monitor and configure the HLT, some of which are designed from scratch for Run 3.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/202429502021