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Preparing the track reconstruction in ATLAS for a high multiplicity future

Langenberg, Robert ; Morley, Anthony ; Salzburger, Andreas ; Elsing, Markus ; Eldik, Niels van ; Mashinistov, Ruslan

Journal of physics. Conference series, 2014-01, Vol.513 (2), p.22018-6 [Periódico revisado por pares]

Bristol: IOP Publishing

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Título:
Preparing the track reconstruction in ATLAS for a high multiplicity future
Autor: Langenberg, Robert ; Morley, Anthony ; Salzburger, Andreas ; Elsing, Markus ; Eldik, Niels van ; Mashinistov, Ruslan
Assuntos: Algorithms ; ATLAS experiment ; Central processing units ; Computational aspects ; Core components ; Design engineering ; Design optimization ; High multiplicity ; Interface complexity ; Maintainability ; Modules ; Nuclear physics ; Optimization ; Physics ; Reconstruction ; Reconstruction algorithms ; Removing algorithms ; Track reconstruction ; Tracking ; Vector processing (computers)
É parte de: Journal of physics. Conference series, 2014-01, Vol.513 (2), p.22018-6
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The track reconstruction algorithms of the ATLAS experiment have demonstrated excellent performance in all of the data delivered so far by the LHC. The expected large increase in the number of interactions per bunch crossing introduces new challenges both in the computational aspects and physics performance of the algorithms. With the aim of taking advantage of modern CPU design and optimizing memory and CPU usage in the reconstruction algorithms a number of projects are being pursued. These include rationalization of the event data model, vectorization of the core components of the algorithms, and removing algorithm bottlenecks by using modern code analysis tools. Recent results of the advances made in these ongoing projects indicate up to three-fold speedup in the optimized modules while in some modules the code size could be reduced by up to 97% leading to higher readability, maintainability and decreased interface complexity.
Editor: Bristol: IOP Publishing
Idioma: Inglês

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Preparing the track reconstruction in ATLAS for a high multiplicity future

Langenberg, Robert ; Morley, Anthony ; Salzburger, Andreas ; Elsing, Markus ; Eldik, Niels van ; Mashinistov, Ruslan

Bristol: IOP Publishing

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