1. Highly-parallelized simulation of a pixelated LArTPC on a GPU
- Author
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Abed Abud, A, Abi, B, Acciarri, R, Acero, MA, Adames, MR, Adamov, G, Adamowski, M, Adams, D, Adinolfi, M, Adriano, C, Aduszkiewicz, A, Aguilar, J, Ahmad, Z, Ahmed, J, Aimard, B, Akbar, F, Allison, K, Alonso Monsalve, S, Alrashed, M, Alt, C, Alton, A, Alvarez, R, Amedo, P, Anderson, J, Andrade, DA, Andreopoulos, C, Andreotti, M, Andrews, MP, Andrianala, F, Andringa, S, Anfimov, N, Anicézio Campanelli, WL, Ankowski, A, Antoniassi, M, Antonova, M, Antoshkin, A, Antusch, S, Aranda-Fernandez, A, Arellano, L, Arnold, LO, Arroyave, MA, Asaadi, J, Ashkenazi, A, Asquith, L, Aurisano, A, Aushev, V, Autiero, D, Ayala-Torres, M, Azfar, F, Back, A, Back, H, Back, JJ, Bagaturia, I, Bagby, L, Balashov, N, Balasubramanian, S, Baldi, P, Baldini, W, Baller, B, Bambah, B, Barao, F, Barenboim, G, Barham Alzás, P, Barker, GJ, Barkhouse, W, Barnes, C, Barr, G, Barranco Monarca, J, Barros, A, Barros, N, Barrow, JL, Basharina-Freshville, A, Bashyal, A, Basque, V, Batchelor, C, Battat, JBR, Battisti, F, Bay, F, Bazetto, MCQ, Bazo Alba, JLL, Beacom, JF, Bechetoille, E, Behera, B, Belchior, E, Bellantoni, L, Bellettini, G, Bellini, V, Beltramello, O, Benekos, N, Benitez Montiel, C, Benjamin, D, Bento Neves, F, Berger, J, Berkman, S, Bernardini, P, Berner, RM, Bersani, A, Bertolucci, S, Betancourt, M, Betancur Rodríguez, A, and Apollo - University of Cambridge Repository
- Subjects
Bioengineering ,5106 Nuclear and Plasma Physics ,51 Physical Sciences - Abstract
The rapid development of general-purpose computing on graphics processing units (GPGPU) is allowing the implementation of highly-parallelized Monte Carlo simulation chains for particle physics experiments. This technique is particularly suitable for the simulation of a pixelated charge readout for time projection chambers, given the large number of channels that this technology employs. Here we present the first implementation of a full microphysical simulator of a liquid argon time projection chamber (LArTPC) equipped with light readout and pixelated charge readout, developed for the DUNE Near Detector. The software is implemented with an end-to-end set of GPU-optimized algorithms. The algorithms have been written in Python and translated into CUDA kernels using Numba, a just-in-time compiler for a subset of Python and NumPy instructions. The GPU implementation achieves a speed up of four orders of magnitude compared with the equivalent CPU version. The simulation of the current induced on 10^3 pixels takes around 1 ms on the GPU, compared with approximately 10 s on the CPU. The results of the simulation are compared against data from a pixel-readout LArTPC prototype.
- Published
- 2023