GPU Implementation and Optimization of 3D FDTD Algorithm
SONG Qingzeng
ZHANG Erlu
HAN Dong
LV Huayang
WU Jigang
Abstract：FDTD algorithm is a very extensive numerical method for the electromagnetic field ,which has good accuracy and flexibility ,and has become a powerful tool for solving various electromagnetic problems .The rapid development of semi‐conductor technology makes the computational performance of the CPU has made progress in leaps and bounds ,but until now on the CPU computing time of FDTD method is still very time consuming ,which greatly limits the FDTD method in various engineering fields of applications .The FDTD algorithm on the GPU is realized and optimized ,so as to improve the calcula‐tion efficiency of the FDTD method ,save the simulation time .Experimental results show that the serial program is executed on the relative Xeon Intel processor ,and the maximum of GPU can get 166 times speedup .According to the roofline model , the performance of the GPU reaches 89% of the theoretical value .
Keywords：FDTD algorithmCUDARoofline modelGPU
Publication Date：2015-01-01
Pages：6( 1775-1779,1823 )