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Optimization of opportunistic utilization of the ATLAS High-Level Trigger farm for LHC Run 3
The ATLAS Trigger and Data Acquisition (TDAQ) High Level Trigger (HLT) computing farm contains 120,000 cores. These resources are critical for online selection and collection of collision data in the ATLAS experiment during LHC operation. Since 2013, during longer period of LHC inactivity these reso...
Autores principales: | , , , , |
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Lenguaje: | eng |
Publicado: |
2023
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/2857790 |
_version_ | 1780977584474947584 |
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author | Glushkov, Ivan Lee, Chris Di Girolamo, Alessandro Walker, Rodney Gottardo, Carlo Alberto |
author_facet | Glushkov, Ivan Lee, Chris Di Girolamo, Alessandro Walker, Rodney Gottardo, Carlo Alberto |
author_sort | Glushkov, Ivan |
collection | CERN |
description | The ATLAS Trigger and Data Acquisition (TDAQ) High Level Trigger (HLT) computing farm contains 120,000 cores. These resources are critical for online selection and collection of collision data in the ATLAS experiment during LHC operation. Since 2013, during longer period of LHC inactivity these resources are being used for offline event simulation via the "Simulation at Point One" project (Sim@P1). With the recent start of LHC Run 3 and the flat computing budget expected in the near future, finding ways to maximize the resource utilization efficiency is of paramount importance. Recent improvements in the ATLAS software stack can potentially allow the utilization of the Sim@P1 even during LHC operation for the duration of the LHC inter-fill gaps. While previous papers on the Sim@P1 project were emphasizing the technical implementation details, the current contribution is presenting results of a variety of tests that led to the optimal configuration of the job submission infrastructure which would allow the use of Sim@P1 during LHC Run 3. |
id | cern-2857790 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2023 |
record_format | invenio |
spelling | cern-28577902023-05-04T18:19:50Zhttp://cds.cern.ch/record/2857790engGlushkov, IvanLee, ChrisDi Girolamo, AlessandroWalker, RodneyGottardo, Carlo AlbertoOptimization of opportunistic utilization of the ATLAS High-Level Trigger farm for LHC Run 3Particle Physics - ExperimentThe ATLAS Trigger and Data Acquisition (TDAQ) High Level Trigger (HLT) computing farm contains 120,000 cores. These resources are critical for online selection and collection of collision data in the ATLAS experiment during LHC operation. Since 2013, during longer period of LHC inactivity these resources are being used for offline event simulation via the "Simulation at Point One" project (Sim@P1). With the recent start of LHC Run 3 and the flat computing budget expected in the near future, finding ways to maximize the resource utilization efficiency is of paramount importance. Recent improvements in the ATLAS software stack can potentially allow the utilization of the Sim@P1 even during LHC operation for the duration of the LHC inter-fill gaps. While previous papers on the Sim@P1 project were emphasizing the technical implementation details, the current contribution is presenting results of a variety of tests that led to the optimal configuration of the job submission infrastructure which would allow the use of Sim@P1 during LHC Run 3.ATL-SOFT-SLIDE-2023-150oai:cds.cern.ch:28577902023-05-04 |
spellingShingle | Particle Physics - Experiment Glushkov, Ivan Lee, Chris Di Girolamo, Alessandro Walker, Rodney Gottardo, Carlo Alberto Optimization of opportunistic utilization of the ATLAS High-Level Trigger farm for LHC Run 3 |
title | Optimization of opportunistic utilization of the ATLAS High-Level Trigger farm for LHC Run 3 |
title_full | Optimization of opportunistic utilization of the ATLAS High-Level Trigger farm for LHC Run 3 |
title_fullStr | Optimization of opportunistic utilization of the ATLAS High-Level Trigger farm for LHC Run 3 |
title_full_unstemmed | Optimization of opportunistic utilization of the ATLAS High-Level Trigger farm for LHC Run 3 |
title_short | Optimization of opportunistic utilization of the ATLAS High-Level Trigger farm for LHC Run 3 |
title_sort | optimization of opportunistic utilization of the atlas high-level trigger farm for lhc run 3 |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/2857790 |
work_keys_str_mv | AT glushkovivan optimizationofopportunisticutilizationoftheatlashighleveltriggerfarmforlhcrun3 AT leechris optimizationofopportunisticutilizationoftheatlashighleveltriggerfarmforlhcrun3 AT digirolamoalessandro optimizationofopportunisticutilizationoftheatlashighleveltriggerfarmforlhcrun3 AT walkerrodney optimizationofopportunisticutilizationoftheatlashighleveltriggerfarmforlhcrun3 AT gottardocarloalberto optimizationofopportunisticutilizationoftheatlashighleveltriggerfarmforlhcrun3 |