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Surface-based GPU-friendly geometry modeling for detector simulation
/ Apostolakis, John (CERN) ; Cvijetic, Dusan (LPHE, Lausanne) ; Cosmo, Gabriele (CERN) ; Gheata, Andrei (CERN) ; Hahnfeld, Jonas (CERN) ; Stan, Eduard-George (Bucharest, IFIN-HH ; Bucharest, Polytechnic Inst.)
In a context where the high-energy physics community strives to enhance software to handle increased data throughput, detector simulation is evolving to take advantage of new performance opportunities. Given the intricacy of particle transport simulation, recent advancements, such as adapting to accelerator hardware, require a significant research and development effort.The feasibility of porting complex particle transport codes to GPUs has been already demonstrated by parallelizing the processing of tracks undergoing electromagnetic interactions. [...]
2024 - 8 p.
- Published in : EPJ Web Conf. 295 (2024) 03039
Fulltext: PDF;
In : 26th International Conference on Computing in High Energy & Nuclear Physics, Norfolk, Virginia, Us, 8 - 12 May 2023, pp.03039
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ROOT’s RNTuple I/O Subsystem: The Path to Production
/ Blomer, Jakob (CERN) ; Canal, Philippe (Fermilab) ; de Geus, Florine (CERN) ; Hahnfeld, Jonas (CERN) ; Naumann, Axel (CERN) ; Lopez-Gomez, Javier (CERN) ; Miotto, Giovanna Lazzari (CERN) ; Padulano, Vincenzo Eduardo (CERN)
The RNTuple I/O subsystem is ROOT’s future event data file format and access API. It is driven by the expected data volume increase at upcoming HEP experiments, e.g. [...]
FERMILAB-CONF-24-0690-CSAID.-
2024 - 7 p.
- Published in : EPJ Web Conf. 295 (2024) 06020
Fulltext: document - PDF; 5fef0b895aa1fd0f7fb49d3c87a67721 - PDF; External link: Fermilab Library Server
In : 26th International Conference on Computing in High Energy & Nuclear Physics, Norfolk, Virginia, Us, 8 - 12 May 2023, pp.06020
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Geant4 electromagnetic physics for Run3 and Phase2 LHC
/ Hahnfeld, Jonas (CERN) ; Ivanchenko, Vladimir (CERN ; Princeton U.) ; Novak, Mihaly (CERN) ; Pandola, Luciano (INFN, Catania) ; Sawkey, Daren (Varian Assoc., Palo Alto)
For the new Geant4 series 11.X, the electromagnetic (EM) physics sub-libraries were revised and reorganized in view of requirements for simulation of Phase-2 LHC experiments. EM physics simulation takes a significant fraction of the available CPU during massive production of Monte Carlo events for LHC experiments. [...]
2024 - 4 p.
- Published in : EPJ Web Conf. 295 (2024) 03018
Fulltext: PDF;
In : 26th International Conference on Computing in High Energy & Nuclear Physics, Norfolk, Virginia, Us, 8 - 12 May 2023, pp.03018
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Parallel Writing of Nested Data in Columnar Formats
/ Hahnfeld, Jonas (CERN ; Frankfurt U.) ; Blomer, Jakob (CERN) ; Kollegger, Thorsten (Frankfurt U.)
High Energy Physics (HEP) experiments, for example at the Large Hadron Collider (LHC) at CERN, store data at exabyte scale in sets of files. They use a binary columnar data format by the ROOT framework, that also transparently compresses the data. [...]
arXiv:2410.14239.-
2024-08-26 - 14 p.
- Published in : Lect. Notes Comput. Sci. 14802 (2024) 18-31
Fulltext: PDF;
In : 30th European Conference on Parallel and Distributed Processing (Euro-Par 2024), Madrid, Spain, 26 - 30 Aug 2024, pp.18-31
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Full Simulation of CMS for Run-3 and Phase-2
/ Srimanobhas, Norraphat (Chulalongkorn U.) ; Banerjee, Sunanda (Wisconsin U., Madison) ; Jonas Hahnfeld ; Ivantchenko, Vladimir (Princeton U.) ; Krammer, Natascha (Vienna, OAW) ; Muzaffar, Shahzad (CERN) ; Pedro, Kevin Jerome (Fermilab) ; Piparo, Danilo (CERN)
/CMS Collaboration
In this contribution we report status of the CMS Geant4 simulation and the prospects for Run-3 and Phase-2. Firstly, we report about our experience during the start of Run-3 with Geant4 10.7.2, the common software package DD4hep for geometry description, and VecGeom run time geometry library. [...]
CMS-CR-2023-152.-
Geneva : CERN, 2024 - 9 p.
- Published in : EPJ Web Conf. 295 (2024) 03017
Fulltext: PDF;
In : 26th International Conference on Computing in High Energy & Nuclear Physics, Norfolk, Virginia, Us, 8 - 12 May 2023
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Offloading electromagnetic shower transport to GPUs
/ Amadio, G. (CERN) ; Apostolakis, J. (CERN) ; Buncic, P. (CERN) ; Cosmo, G. (CERN) ; Dosaru, D. (Ecole Polytechnique, Lausanne) ; Gheata, A. (CERN) ; Hageboeck, S. (CERN) ; Hahnfeld, J. (CERN) ; Hodgkinson, M. (Sheffield U.) ; Morgan, B. (Liverpool U.) et al.
Making general particle transport simulation for high-energy physics (HEP) single-instruction-multiple-thread (SIMT) friendly, to take advantage of accelerator hardware, is an important alternative for boosting the throughput of simulation applications. To date, this challenge is not yet resolved, due to difficulties in mapping the complexity of Geant4 components and workflow to the massive parallelism features exposed by graphics processing units (GPU). [...]
arXiv:2209.15445.-
2023 - 7 p.
- Published in : J. Phys. : Conf. Ser. 2438 (2023) 012055
Fulltext: 2209.15445 - PDF; document - PDF;
In : 20th International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT 2021), Daejeon, Korea, 29 Nov - 3 Dec 2021, pp.012055
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HL-LHC Analysis With ROOT
/ Naumann, Axel (CERN) ; Canal, Philippe (Fermilab) ; Tejedor, Enric (CERN) ; Guiraud, Enrico (CERN) ; Moneta, Lorenzo (CERN) ; Bellenot, Bertrand (CERN) ; Couet, Olivier (CERN) ; Tadel, Alja Mrak (UC, San Diego) ; Tadel, Matevz (UC, San Diego) ; Linev, Sergey (Darmstadt, GSI) et al.
ROOT is high energy physics' software for storing and mining data in a statistically sound way, to publish results with scientific graphics. [...]
arXiv:2205.06121 ; FERMILAB-TM-2774-SCD.
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Fermilab Library Server - Fulltext - Fulltext
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ROOT for the HL-LHC: data format
/ Naumann, Axel (CERN) ; Canal, Philippe (Fermilab) ; Tejedor, Enric (CERN) ; Guiraud, Enrico (CERN) ; Moneta, Lorenzo (CERN) ; Bellenot, Bertrand (CERN) ; Couet, Olivier (CERN) ; Tadel, Alja Mrak (San Diego State U.) ; Tadel, Matevz ; Linev, Sergey (San Diego State U. ; Darmstadt, GSI) et al.
This document discusses the state, roadmap, and risks of the foundational components of ROOT with respect to the experiments at the HL-LHC (Run 4 and beyond). [...]
FERMILAB-FN-1165-SCD ; arXiv:2204.04557.
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Fermilab Library Server - Fulltext - Fulltext
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