A Comparison of CPU and GPU Implementations for the LHCb Experiment Run 3 Trigger

Aaij, R; Adinolfi, M; Aiola, S; Akar, S; Albrecht, J; Alexander, M; Amato, S; Amhis, Y; Archilli, F; Bala, M; Bassi, G; Bian, L; Blago, MP; Boettcher, T; Boldyrev, A; Borghi, S; Rodriguez, AB; Calefice, L; Gomez, MC; Pérez, DHC; Cardini, A; Cattaneo, M; Chobanova, V; Ciezarek, G; Vidal, XC; Cobbledick, JL; Coelho, JAB; Colombo, T; Contu, A; Couturier, B; Craik, DC; Currie, R; d’Argent, P; De Cian, M; Derkach, D; Dordei, F; Dorigo, M; Dufour, L; Durante, P; Dziurda, A; Dzyuba, A; Easo, S; Esen, S; Declara, PF; Filippov, S; Fitzpatrick, C; Frank, M; Gandini, P; Gligorov, VV; Golobardes, E; Graziani, G; Grillo, L; Günther, PA; Hansmann-Menzemer, S; Hennequin, AM; Henry, L; Hill, D; Hollitt, SE; Hu, J; Hulsbergen, W; Hunter, RJ; Hushchyn, M; Jashal, BK; Jones, CR; Klaver, S; Klimaszewski, K; Kopecna, R; Krzemien, W; Kucharczyk, M; Lane, R; Lazzari, F; Gac, RL; Li, P; Lopes, JH; Martinez, ML; Lupato, A; Lupton, O; Lyu, X; Machefert, F; Madejczyk, O; Malde, S; Marchand, JF; Mariani, S; Benito, CM; Santos, DM; Vidal, FM; Matev, R; Mazurek, M; Mitreska, B; Mitzel, DS; Morello, MJ; Mu, H; Muzzetto, P; Naik, P; Needham, M; Neri, N; Neufeld, N; Nolte, NS; O’Hanlon, D; Oyanguren, A

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Authors

Aaij, R

Adinolfi, M

Aiola, S

Akar, S

Albrecht, J

Alexander, M

Amato, S

Publication Date

2022-12

Journal Title

Computing and Software for Big Science

ISSN

2510-2036

Publisher

Springer Science and Business Media LLC

Volume

Issue

Language

Type

Article

This Version

VoR

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Citation

Aaij, R., Adinolfi, M., Aiola, S., Akar, S., Albrecht, J., Alexander, M., Amato, S., et al. (2022). A Comparison of CPU and GPU Implementations for the LHCb Experiment Run 3 Trigger. Computing and Software for Big Science, 6 (1) https://doi.org/10.1007/s41781-021-00070-2

Description

Funder: CERN (European Organization for Nuclear Research)

Abstract

AbstractThe Large Hadron Collider beauty (LHCb) experiment at CERN is undergoing an upgrade in preparation for the Run 3 data collection period at the Large Hadron Collider (LHC). As part of this upgrade, the trigger is moving to a full software implementation operating at the LHC bunch crossing rate. We present an evaluation of a CPU-based and a GPU-based implementation of the first stage of the high-level trigger. After a detailed comparison, both options are found to be viable. This document summarizes the performance and implementation details of these options, the outcome of which has led to the choice of the GPU-based implementation as the baseline.

Keywords

Original Article, Real-time, Heterogeneous, High-throughput, Parallel computing, High-level trigger, Software

Identifiers

s41781-021-00070-2, 70

External DOI: https://doi.org/10.1007/s41781-021-00070-2

This record's URL: https://www.repository.cam.ac.uk/handle/1810/332481

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Licence:

http://creativecommons.org/licenses/by/4.0/

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