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Title Electromagnetic physics vectorization in the GeantV transport framework
Author(s) Amadio, Guilherme (CERN) ; Ananya (CERN) ; Apostolakis, John (CERN) ; Bandieramonte, Marilena (CERN ; U. Pittsburgh (main)) ; Behera, S P (Bhabha Atomic Res. Ctr.) ; Bhattacharyya, Abhijit (Bhabha Atomic Res. Ctr.) ; Brun, Rene (CERN) ; Canal, Philippe (Fermilab) ; Carminati, Federico (CERN) ; Cosmo, Gabriele (CERN) ; Drohan, Vitalji (CERN) ; Elvira, Victor Daniel (Fermilab) ; Genser, Krzysztof (Fermilab) ; Gheata, Andrei (CERN) ; Gheata, Mihaela (CERN ; Bucharest, Inst. Space Science) ; Goulas, Ilias (CERN) ; Hariri, Farah (CERN) ; Vladimir, Ivanchenko (CERN ; Tomsk State U.) ; Khattak, Gul Ruk (CERN) ; Konstantinov, Dmitri (CERN) ; Kumawat, Harpool (Bhabha Atomic Res. Ctr.) ; Lima, Jose Guilherme (Fermilab) ; Martinez Castro, Jesus (CIC, IPN) ; Mato, Pere (CERN) ; Mendez, Patricia (CERN) ; Miranda Aguillar, Aldo (CIC, IPN) ; Nikolics, Katalin (CERN) ; Novak, Mihaly (CERN) ; Orlova, Elena (CERN) ; Pedro, Kevin (Bhabha Atomic Res. Ctr.) ; Pokorski, Witold (CERN) ; Ribon, Alberto (CERN) ; Savin, Dmitry (CERN) ; Schmitz, Ryan (CERN) ; Sehgal, Raman (Bhabha Atomic Res. Ctr.) ; Shadura, Oksana (CERN ; U. Nebraska, Lincoln) ; Sharan, Shruti (CERN) ; Vallecorsa, Sofia (CERN) ; Wenzel, Sandro Christian (CERN) ; Jun, Soon Yung (Fermilab)
Publication 2019
Number of pages 11
In: EPJ Web Conf. 214 (2019) 02031
In: 23rd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2018, Sofia, Bulgaria, 9 - 13 Jul 2018, pp.02031
DOI 10.1051/epjconf/201921402031
Subject category Computing and Computers
Abstract The development of the GeantV Electromagnetic (EM) physics package has evolved following two necessary paths towards code modernization. A first phase required the revision of the main electromagnetic physics models and their implementation. The main objectives were to improve their accuracy, extend them to the new high-energy frontier posed by the Future Circular Collider (FCC) programme and allow a better adaptation to a multi-particle flow. Most of the EM physics models in GeantV have been reviewed from theoretical perspective and rewritten with vector-friendly implementations, being now available in scalar mode in the alpha release. The second phase consists of a thorough investigation on the possibility to vectorise the most CPU-intensive physics code parts, such as final state sampling. We have shown the feasibility of implementing electromagnetic physics models that take advantage of SIMD/SIMT architectures, thus obtaining gains in performance. After this phase, the time has come for the GeantV project to take a step forward towards the final proof of concept. This takes shape through the testing of the full simulation chain (transport + physics + geometry) running in vectorized mode. In this paper we will present the first benchmark results obtained after vectorizing a full set of electromagnetic physics models.
Copyright/License publication: © 2019-2024 The Authors (License: CC-BY-4.0)

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 ჩანაწერი შექმნილია 2019-11-16, ბოლოს შესწორებულია 2022-08-10


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