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PHYSLITE - a new reduced common data format for ATLAS

ATLAS is one of the main experiments at the Large Hadron Collider, with a diverse physics program covering precise measurements as well as new physics searches in countless final states, carried out by more than 2600 active authors. The High Luminosity LHC (HL-LHC) era brings unprecedented computing...

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Autores principales: Catmore, James, Elmsheuser, Johannes, Schaarschmidt, Jana, Heinrich, Lukas Alexander, Ozturk, Nurcan, Mete, Alaettin Serhan, Krumnack, Nils Erik
Lenguaje:eng
Publicado: 2023
Materias:
Acceso en línea:http://cds.cern.ch/record/2857821
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author Catmore, James
Elmsheuser, Johannes
Schaarschmidt, Jana
Heinrich, Lukas Alexander
Ozturk, Nurcan
Mete, Alaettin Serhan
Krumnack, Nils Erik
author_facet Catmore, James
Elmsheuser, Johannes
Schaarschmidt, Jana
Heinrich, Lukas Alexander
Ozturk, Nurcan
Mete, Alaettin Serhan
Krumnack, Nils Erik
author_sort Catmore, James
collection CERN
description ATLAS is one of the main experiments at the Large Hadron Collider, with a diverse physics program covering precise measurements as well as new physics searches in countless final states, carried out by more than 2600 active authors. The High Luminosity LHC (HL-LHC) era brings unprecedented computing challenges that call for novel approaches to reduce the amount of data and MC that is stored, while continuing the support for the rich physics program. With the beginning of LHC Run 3, ATLAS introduced a new common data format, PHYS, that replaces most of the individual formats that were used in Run 2, and therefore reduces the disk storage significantly. ATLAS also launched the prototype of another common format, PHYSLITE, that is about a third of the size of PHYS. PHYSLITE will be the main format for the HL-LHC, and aims to serve 80% of all physics analyses. To simplify analysis workloads and further reduce disk usage it is designed to largely replace user-defined analysis n-tuples and consequently contains pre-calibrated objects. PHYSLITE is also intended to support “columnar” data processing techniques, which for some analyses may have significant advantages over the traditional event-loop analysis style. The evolution of data formats, the design principles for PHYSLITE, techniques for file size reductions, and various forms of validations will be discussed.
id cern-2857821
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2023
record_format invenio
spelling cern-28578212023-05-05T18:57:03Zhttp://cds.cern.ch/record/2857821engCatmore, JamesElmsheuser, JohannesSchaarschmidt, JanaHeinrich, Lukas AlexanderOzturk, NurcanMete, Alaettin SerhanKrumnack, Nils ErikPHYSLITE - a new reduced common data format for ATLASParticle Physics - ExperimentATLAS is one of the main experiments at the Large Hadron Collider, with a diverse physics program covering precise measurements as well as new physics searches in countless final states, carried out by more than 2600 active authors. The High Luminosity LHC (HL-LHC) era brings unprecedented computing challenges that call for novel approaches to reduce the amount of data and MC that is stored, while continuing the support for the rich physics program. With the beginning of LHC Run 3, ATLAS introduced a new common data format, PHYS, that replaces most of the individual formats that were used in Run 2, and therefore reduces the disk storage significantly. ATLAS also launched the prototype of another common format, PHYSLITE, that is about a third of the size of PHYS. PHYSLITE will be the main format for the HL-LHC, and aims to serve 80% of all physics analyses. To simplify analysis workloads and further reduce disk usage it is designed to largely replace user-defined analysis n-tuples and consequently contains pre-calibrated objects. PHYSLITE is also intended to support “columnar” data processing techniques, which for some analyses may have significant advantages over the traditional event-loop analysis style. The evolution of data formats, the design principles for PHYSLITE, techniques for file size reductions, and various forms of validations will be discussed.ATL-SOFT-SLIDE-2023-158oai:cds.cern.ch:28578212023-05-04
spellingShingle Particle Physics - Experiment
Catmore, James
Elmsheuser, Johannes
Schaarschmidt, Jana
Heinrich, Lukas Alexander
Ozturk, Nurcan
Mete, Alaettin Serhan
Krumnack, Nils Erik
PHYSLITE - a new reduced common data format for ATLAS
title PHYSLITE - a new reduced common data format for ATLAS
title_full PHYSLITE - a new reduced common data format for ATLAS
title_fullStr PHYSLITE - a new reduced common data format for ATLAS
title_full_unstemmed PHYSLITE - a new reduced common data format for ATLAS
title_short PHYSLITE - a new reduced common data format for ATLAS
title_sort physlite - a new reduced common data format for atlas
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2857821
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AT elmsheuserjohannes physliteanewreducedcommondataformatforatlas
AT schaarschmidtjana physliteanewreducedcommondataformatforatlas
AT heinrichlukasalexander physliteanewreducedcommondataformatforatlas
AT ozturknurcan physliteanewreducedcommondataformatforatlas
AT metealaettinserhan physliteanewreducedcommondataformatforatlas
AT krumnacknilserik physliteanewreducedcommondataformatforatlas