CERN Accelerating science

Article
Report number arXiv:2105.04031 ; LHCb-DP-2021-003
Title A Comparison of CPU and GPU implementations for the LHCb Experiment Run 3 Trigger
Author(s)

Aaij, R. (NIKHEF, Amsterdam) ; Adinolfi, M. (Bristol U.) ; Aiola, S. (INFN, Milan) ; Akar, S. (Cincinnati U.) ; Albrecht, J. (Dortmund U.) ; Alexander, M. (Glasgow U.) ; Amato, S. (UFRJ, Rio de Janeiro) ; Amhis, Y. (IJCLab, Orsay) ; Archilli, F. (Heidelberg U.) ; Bala, M. (NCBJ, Swierk) ; Bassi, G. (INFN, Pisa) ; Bian, L. (WIT, Wuhan) ; Blago, M.P. (CERN) ; Boettcher, T. (MIT) ; Boldyrev, A. (Higher Sch. of Economics, Moscow) ; Borghi, S. (Manchester U.) ; Rodriguez, A. Brea (Santiago de Compostela U., IGFAE) ; Calefice, L. (Dortmund U. ; Paris U., VI-VII) ; Gomez, M. Calvo (Ramon Llull U., Barcelona) ; Perez, D.H. Campora (Maastricht U. ; CERN) ; Cardini, A. (INFN, Cagliari) ; Cattaneo, M. (CERN) ; Chobanova, V. (Santiago de Compostela U., IGFAE) ; Ciezarek, G. (CERN) ; Vidal, X. Cid (Santiago de Compostela U., IGFAE) ; Cobbledick, J.L. (Manchester U.) ; Coelho, J.A. B. (IJCLab, Orsay) ; Colombo, T. (CERN) ; Contu, A. (INFN, Cagliari) ; Couturier, B. (CERN) ; Craik, D.C. (MIT) ; Currie, R. (Edinburgh U.) ; d'Argent, P. (CERN) ; De Cian, M. (Ecole Polytechnique, Lausanne) ; Derkach, D. (Higher Sch. of Economics, Moscow) ; Dordei, F. (INFN, Cagliari) ; Dorigo, M. (ICC, Barcelona U. ; INFN, Trieste) ; Dufour, L. (CERN) ; Durante, P. (CERN) ; Dziurda, A. (Cracow, INP) ; Dzyuba, A. (St. Petersburg, INP) ; Easo, S. (Rutherford) ; Esen, S. (Paris U., VI-VII) ; Declara, P. Fernandez (CERN) ; Filippov, S. (Moscow, INR) ; Fitzpatrick, C. (Manchester U.) ; Frank, M. (CERN) ; Gandini, P. (INFN, Milan) ; Gligorov, V.V. (Paris U., VI-VII) ; Golobardes, E. (Ramon Llull U., Barcelona) ; Graziani, G. (INFN, Florence) ; Grillo, L. (Manchester U.) ; Günther, P.A. (Heidelberg U.) ; Hansmann-Menzemer, S. (Heidelberg U.) ; Hennequin, A.M. (CERN) ; Henry, L. (INFN, Milan ; Valencia U., IFIC) ; Hill, D. (Ecole Polytechnique, Lausanne) ; Hollitt, S.E. (Dortmund U.) ; Hu, J. (Heidelberg U.) ; Hulsbergen, W. (NIKHEF, Amsterdam) ; Hunter, R.J. (Warwick U.) ; Hushchyn, M. (Higher Sch. of Economics, Moscow) ; Jashal, B.K. (Valencia U., IFIC) ; Jones, C.R. (Cambridge U.) ; Klaver, S. (NIKHEF, Amsterdam) ; Klimaszewski, K. (NCBJ, Swierk) ; Kopecna, R. (Heidelberg U.) ; Krzemien, W. (NCBJ, Swierk) ; Kucharczyk, M. (Cracow, INP) ; Lane, R. (Bristol U.) ; Lazzari, F. (INFN, Pisa ; Siena U.) ; Le Gac, R. (Marseille, CPPM) ; Li, P. (Heidelberg U.) ; Lopes, J.H. (UFRJ, Rio de Janeiro) ; Martinez, M. Lucio (NIKHEF, Amsterdam) ; Lupato, A. (Manchester U.) ; Lupton, O. (Warwick U.) ; Lyu, X. (Beijing, GUCAS) ; Machefert, F. (IJCLab, Orsay) ; Madejczyk, O. (AGH-UST, Cracow) ; Malde, S. (Oxford U.) ; Marchand, J.F. (Annecy, LAPP) ; Mariani, S. (INFN, Florence ; U. Florence (main) ; CERN) ; Benito, C. Marin (CERN) ; Santos, D. Martinez (Santiago de Compostela U., IGFAE) ; Vidal, F. Martinez (Valencia U., IFIC) ; Matev, R. (CERN) ; Mazurek, M. (CERN) ; Mitreska, B. (Manchester U.) ; Mitzel, D.S. (CERN) ; Morello, M.J. (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Mu, H. (Tsinghua U., Beijing) ; Muzzetto, P. (INFN, Cagliari ; CERN) ; Naik, P. (Bristol U.) ; Needham, M. (Edinburgh U.) ; Neri, N. (INFN, Milan ; Milan U.) ; Neufeld, N. (CERN) ; Nolte, N.S. (Dortmund U. ; CERN) ; O'Hanlon, D. (Bristol U.) ; Oyanguren, A. (Valencia U., IFIC) ; Altarelli, M. Pepe (CERN) ; Petrucci, S. (Edinburgh U.) ; Petruzzo, M. (INFN, Milan) ; Pica, L. (INFN, Pisa ; Pisa U.) ; Pisani, F. (CERN) ; Piucci, A. (Heidelberg U.) ; Polci, F. (Paris U., VI-VII) ; Poluektov, A. (Marseille, CPPM) ; Polycarpo, E. (UFRJ, Rio de Janeiro) ; Prouve, C. (Santiago de Compostela U., IGFAE) ; Punzi, G. (ICC, Barcelona U. ; Pisa U.) ; Quagliani, R. (Paris U., VI-VII) ; Rabadan Trejo, R.I. (Marseille, CPPM) ; Ramos Pernas, M. (Warwick U.) ; Rangel, M.S. (UFRJ, Rio de Janeiro) ; Ratnikov, F. (Oxford U. ; Higher Sch. of Economics, Moscow) ; Raven, G. (Nikhef, Amsterdam ; Vrije U., Amsterdam) ; Reiss, F. (Paris U., VI-VII) ; Renaudin, V. (Oxford U.) ; Robbe, P. (IJCLab, Orsay) ; Ryzhikov, A. (Higher Sch. of Economics, Moscow) ; Santimaria, M. (Frascati) ; Saur, M. (Dortmund U.) ; Schiller, M. (Glasgow U.) ; Schwemmer, R. (CERN) ; Sciascia, B. (Frascati) ; Solomin, A. (Bristol U. ; SINP, Moscow) ; Suljik, F. (Oxford U.) ; Skidmore, N. (Manchester U.) ; Sokoloff, M.D. (Cincinnati U.) ; Spradlin, P. (Glasgow U.) ; Stahl, M. (Cincinnati U.) ; Stahl, S. (CERN) ; Stevens, H. (Dortmund U.) ; Sun, L. (WIT, Wuhan) ; Szabelski, A. (NCBJ, Swierk) ; Szumlak, T. (AGH-UST, Cracow) ; Szymanski, M. (CERN) ; Tou, D.Y. (Paris U., VI-VII) ; Tuci, G. (ICC, Barcelona U. ; Pisa U.) ; Usachov, A. (NIKHEF, Amsterdam) ; Valls Canudas, N. (ICC, Barcelona U.) ; Vazquez Gomez, R. (Santiago de Compostela U., IGFAE) ; Vecchi, S. (INFN, Ferrara) ; Vesterinen, M. (Warwick U.) ; Vilasis-Cardona, X. (Ramon Llull U., Barcelona) ; Vom Bruch, D. (Marseille, CPPM) ; Wang, Z. (Zurich U.) ; Wojton, T. (Cracow, INP) ; Whitehead, M. (Bristol U.) ; Williams, M. (MIT ; Melbourne U.) ; Witek, M. (Cracow, INP) ; Xie, Y. (CCNU, Wuhan, Inst. Part. Phys.) ; Xu, A. (Peking U., SKLNPT) ; Yin, H. (CCNU, Wuhan, Inst. Part. Phys.) ; Zdybal, M. (Cracow, INP) ; Zenaiev, O. (CERN) ; Zhang, D. (CCNU, Wuhan, Inst. Part. Phys.) ; Zhang, L. (Tsinghua U., Beijing) ; Zhu, X. (Tsinghua U., Beijing)

Publication 2021-12-22
Imprint 2021-05-09
Number of pages 30
Note 30 pages, 15 figures, 8 tables
In: Comput. Softw. Big Sci. 6, 1 (2022) pp.1
DOI 10.1007/s41781-021-00070-2 (publication)
Subject category physics.ins-det ; Detectors and Experimental Techniques
Accelerator/Facility, Experiment CERN LHC ; LHCb
Abstract The LHCb experiment at CERN is undergoing an upgrade in preparation for the Run 3 data taking period of the LHC. As part of this upgrade the trigger is moving to a fully 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.
Copyright/License preprint: © 2021-2025 CERN (License: CC BY 4.0)
publication: © 2021-2025 The Author(s) (License: CC-BY-4.0)



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 Record created 2021-05-12, last modified 2024-08-17


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