CUDA-based four-path method with application to the EM scattering of a two-layer canopy

作     者：Jiang, Wang-Qiang Zhang, Min Chen, Hui Lu, Yong-Ge 

作者机构：Xidian Univ Sch Sci Xian 710071 Peoples R China Sci & Technol Electromagnet Scattering Lab Beijing 100854 Peoples R China 

出 版 物：《WAVES IN RANDOM AND COMPLEX MEDIA》 (无规介质波)

年 卷 期：2011年第21卷第3期

页      面：529-541页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China National Pre-research Foundation Foundation of the Science and Technology on Electromagnetic Scattering Laboratory 

主　　题：ELECTROMAGNETIC wave scattering FOREST canopies PARALLEL computers COMPUTER architecture GRAPHICS processing units (Computers) COMPUTER simulation MONTE Carlo method GRAPH algorithms 

摘      要：The long-term goal of this paper is to develop a robust simulator to study the EM scattering from vegetation. In an effort to overwhelm the intensive computational burden results from large sampling numbers, we decided to utilize the Graphics Processing Unit (GPU), which has been greatly developed in recent years. In this paper, Compute Unified Device Architecture (CUDA) is combined with the four-path method to predict the EM scattering properties from scatterers which are sampled by using the Monte Carlo method in a two-layer canopy model. Obviously, a speedup of 77.8 times could be readily obtained in comparison with the original serial algorithm on a Core(TM) i5 CPU with the help of a GTS250 GPU as a coprocessor.