Research on GPU-accelerated algorithm in 3D finite difference neutron diffusion calculation method  

作　　者：徐琪 余纲林 王侃 孙嘉龙 

机构地区：[1]Department of Engineering Physics,Tsinghua University

出　　处：《Nuclear Science and Techniques》2014年第1期59-63,共5页核技术（英文）

基　　金：Supported by the 973 Program(No.2007CB209800);National Natural Science Foundation of China(No.11105080)

摘　　要：In this paper,the adaptability of the neutron diffusion numerical algorithm on GPUs was studied,and a GPUaccelerated multi-group 3D neutron diffusion code based on finite difference method was developed.The IAEA3D PWR benchmark problem was calculated in the numerical test.The results demonstrate both high efficiency and adequate accuracy of the GPU implementation for neutron diffusion equation.In this paper, the adaptability of the neutron diffusion numerical algorithm on GPUs was studied, and a GPU- accelerated multi-group 3D neutron diffusion code based on finite difference method was developed. The IAEA 3D PWR benchmark problem was calculated in the numerical test. The results demonstrate both high efficiency and adequate accuracy of the GPU implementation for neutron diffusion equation.

关 键 词：中子扩散方程 三维有限差分 GPU 加速算法 计算 国际原子能机构 有限差分法 数值算法 

分 类 号：TL329[核科学技术—核技术及应用]