The Telescope Array Middle Drum fluorescence detector simulation on GPUs

20th International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Abu-Zayyad, Tareq^1

Physics Department, University of Utah, Salt Lake City

UT

84112, United States^1

关键词: Atmospheric attenuation;    Fluorescence detector;    GPU accelerations;    Graphics Processing Unit (GPU);    Monte Carlo programs;    Physics simulation;    Realistic detectors;    Scientific calculations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/513/5/052001/pdf
DOI  :  10.1088/1742-6596/513/5/052001

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

In recent years, the Graphics Processing Unit (GPU) has been recognized and widely used as an accelerator for many scientific calculations. In general, problems amenable to parallelization are ones that benefit most from the use of GPUs. The Monte Carlo simulation of fluorescence detector response to air showers presents many opportunities for parallelization. In this paper we report on a Monte Carlo program used for the simulation of the Telescope Array Fluorescence Detector located at the Middle Drum site which uses GPU acceleration. All of the physics simulation from shower development, light production and atmospheric attenuation, as well as, the realistic detector optics and electronics simulations are done on the GPU. A detailed description of the code implementation is given, and results on the accuracy and performance of the simulation are presented as well. Improvements in computational throughput in excess of 50× are reported and the accuracy of the results is on par with the CPU implementation of the simulation.