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Evolution of the energy efficiency of LHCb’s real-time processing
/ Aaij, Roel (NIKHEF, Amsterdam) ; Cámpora Pérez, Daniel Hugo (Maastricht U.) ; Colombo, Tommaso (CERN) ; Fitzpatrick, Conor (Manchester U.) ; Gligorov, Vladimir Vava (Paris U., VI-VII) ; Hennequin, Arthur (CERN ; LIP6, Paris) ; Neufeld, Niko (CERN) ; Nolte, Niklas (MIT) ; Schwemmer, Rainer (CERN) ; Vom Bruch, Dorothea (Marseille, CPPM)
The upgraded LHCb detector, due to start datataking in 2022, will have to process an average data rate of 4~TB/s in real time. Because LHCb's physics objectives require that the full detector information for every LHC bunch crossing is read out and made available for real-time processing, this bandwidth challenge is equivalent to that of the ATLAS and CMS HL-LHC software read-out, but deliverable five years earlier. [...]
arXiv:2106.07701.-
2021 - 9 p.
- Published in : EPJ Web Conf. 251 (2021) 04009
Fulltext: 2106.07701 - PDF; document - PDF;
In : 25th International Conference on Computing in High-Energy and Nuclear Physics (CHEP), Online, Online, 17 - 21 May 2021, pp.04009
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Supervision of the ATLAS High Level Trigger System
/ Wheeler, S. (Alberta U.) ; Flammer, J. (CERN) ; Meessen, C. (Marseille, CPPM) ; Qian, Z. (Marseille, CPPM) ; Touchard, F. (Marseille, CPPM) ; Negri, France A. (Pavia U. ; INFN, Pavia) ; Zobernig, H. (Wisconsin U., Madison)
The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter. [...]
hep-ex/0305093; CHEP-2003-TUGT009; ATL-DAQ-2003-010; ATL-DAQ-2003-010.-
Geneva : CERN, 2003 - 6 p.
- Published in : eConf: C0303241 (2003) , pp. TUGT009
Access to fulltext: daq-2003-010 - PDF; daq-2003-010_chep_talk - PDF; Fulltext: PDF; External links: Fulltext; Proceedings write-up on eConf
In : 2003 Conference for Computing in High-Energy and Nuclear Physics, La Jolla, CA, USA, 24 - 28 Mar 2003, pp.TUGT009
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The Level-0 Muon Trigger for the LHCb Experiment
/ Aslanides, E. (Marseille, CPPM) ; Cachemiche, J.P. (Marseille, CPPM) ; Cogan, J. (Marseille, CPPM) ; Dinkespiler, B. (Marseille, CPPM) ; Favard, S. (Marseille, CPPM) ; Duval, P.Y. (Marseille, CPPM) ; Le Gac, R. (Marseille, CPPM) ; Leroy, O. (Marseille, CPPM) ; Liotard, P.L. (Marseille, CPPM) ; Marin, F. (Marseille, CPPM) et al.
A very compact architecture has been developed for the first level Muon Trigger of the LHCb experiment that processes 40 millions of proton-proton collisions per second. For each collision, it receives 3.2 kBytes of data and it finds straight tracks within a 1.2 microseconds latency. [...]
arXiv:0705.0310.-
2007 - 33 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 579 (2007) 989-1004
Fulltext: PDF; External link: Fulltext
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Tracking on GPU at LHCb’s fully software trigger
/ Scarabotto, Alessandro (Centre National de la Recherche Scientifique (FR))
The LHCb experiment will use a fully software-based trigger to collect data from 2022 on, at an event rate of 30 MHz. During the first stage of the High-Level Trigger (HLT1), a partial track reconstruction, using efficient parallelisation techniques on GPU cards, is performed. [...]
LHCb-PROC-2022-011; CERN-LHCb-PROC-2022-011.-
Geneva : CERN, 2022 - mult.p.
Fulltext: PDF;
In : Connecting The Dots 2022, Princeton, United States Of America, 31 May - 2 Jun 2022
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