Exploring Numba and CuPy for GPU-Accelerated Monte Carlo Radiation Transport

Author:

Askar Tair12ORCID,Yergaliyev Argyn3ORCID,Shukirgaliyev Bekdaulet2456ORCID,Abdikamalov Ernazar23ORCID

Affiliation:

1. School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan

2. Energetic Cosmos Laboratory, Nazarbayev University, Astana 010000, Kazakhstan

3. Department of Physics, Nazarbayev University, Astana 010000, Kazakhstan

4. Heriot-Watt International Faculty, Zhubanov University, Aktobe 030000, Kazakhstan

5. Fesenkov Astrophysical Institute, Almaty 050020, Kazakhstan

6. Department of Computation and Data Science, Astana IT University, Astana 010000, Kazakhstan

Abstract

This paper examines the performance of two popular GPU programming platforms, Numba and CuPy, for Monte Carlo radiation transport calculations. We conducted tests involving random number generation and one-dimensional Monte Carlo radiation transport in plane-parallel geometry on three GPU cards: NVIDIA Tesla A100, Tesla V100, and GeForce RTX3080. We compared Numba and CuPy to each other and our CUDA C implementation. The results show that CUDA C, as expected, has the fastest performance and highest energy efficiency, while Numba offers comparable performance when data movement is minimal. While CuPy offers ease of implementation, it performs slower for compute-heavy tasks.

Funder

Science Committee of the Ministry of Science and Higher 268 Education of the Republic of Kazakhstan

Nazarbayev University Faculty Development Competitive Research Grant Program

Aerospace Committee of the Ministry of Digital Development, Innovations and Aerospace Industry of the Republic of Kazakhstan

Publisher

MDPI AG

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