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

The 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 pr...

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Veröffentlicht in:	Comput.Softw.Big Sci 2022-12, Vol.6 (1), Article 1
Hauptverfasser:	Adinolfi, M., Aiola, S., Akar, S., Albrecht, J., Amhis, Y., Archilli, F., Bassi, G., Boettcher, T., Boldyrev, A., Borghi, S., Rodriguez, A. Brea, Calefice, L., Gomez, M. Calvo, Pérez, D. H. Cámpora, Cardini, A., Chobanova, V., Coelho, J. A. B., Contu, A., Couturier, B., Craik, D. C., Currie, R., d’Argent, P., Derkach, D., Dordei, F., Dufour, L., Durante, P., Dzyuba, A., Esen, S., Filippov, S., Frank, M., Gandini, P., Golobardes, E., Graziani, G., Grillo, L., Hansmann-Menzemer, S., Hunter, R. J., Hushchyn, M., Jashal, B. K., Jones, C. R., Klaver, S., Krzemien, W., Lazzari, F., Gac, R. Le, Lopes, J. H., Lupato, A., Lupton, O., Lyu, X., Madejczyk, O., Marchand, J. F., Benito, C. Marin, Vidal, F. Martinez, Matev, R., Mazurek, M., Mitreska, B., Mu, H., Neufeld, N., Nolte, N. S., O’Hanlon, D., Oyanguren, A., Altarelli, M. Pepe, Petrucci, S., Pica, L., Pisani, F., Piucci, A., Polci, F., Prouve, C., Punzi, G., Trejo, R. I. Rabadan, Pernas, M. Ramos, Ratnikov, F., Reiss, F., Robbe, P., Ryzhikov, A., Santimaria, M., Saur, M., Schiller, M., Sciascia, B., Skidmore, N., Spradlin, P., Stahl, M., Stahl, S., Szabelski, A., Szumlak, T., Tou, D. Y., Tuci, G., Canudas, N. Valls, Gomez, R. Vazquez, Vecchi, S., Bruch, D. Vom, Wojton, T., Whitehead, M., Williams, M., Witek, M., Xie, Y., Xu, A., Yin, H., Zenaiev, O., Zhang, D., Zhang, L., Zhu, X.
Format:	Artikel
Sprache:	eng
Schlagworte:	Instrumentation and Detectors Original Article Particle and Nuclear Physics Physics Physics and Astronomy
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Zusammenfassung:	The 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.
ISSN:	2510-2036 2510-2044
DOI:	10.1007/s41781-021-00070-2