期刊文献+

基于MPI实现粗糙地面电磁散射并行FDTD计算 被引量:2

EM Scattering at Rough Surface by Using Parallel FDTD Algorithm
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摘要 提出了在由微机互连构成的机群(COW)并行计算系统上应用信息传递的方式实现粗糙地面散射并行FDTD算法。综合考虑了区域分割和负载平衡因素,并详细分析了子区域在普通网格和吸收边界处与相邻子区域的场值的数据传递,提高了二维粗糙地面FDTD并行计算效率。解决了在计算电大尺寸粗糙地面散射时产生的内存不足和计算耗时长等瓶颈问题。理论分析和数值计算结果验证了该算法的正确性;当计算电大尺寸的粗糙地面散射时,并行效率提升明显,即当参与计算的处理器数量达到6个时,并行效率仍然可以保持在90%以上。 This paper introduced a strategy for parallel implementation of the FDTD algorithm used in COW(Cluster of Workstation)parallel computing system and MPI parallel environment.By using region division,load balance and message passing with two neighboring sub-domains.The theoretic analysis and parallel computing results show that: It is feasible to this parallel FDTD algorithm.When analysising of large-scale electromagnetic scattering problem at rough surface,it could obtain a better speedup rate computing efficiency.
出处 《微波学报》 CSCD 北大核心 2010年第4期19-23,共5页 Journal of Microwaves
基金 国家高技术发展计划项目
关键词 并行计算 时域有限差分 粗糙地面 电磁散射 信息传递接口(MPI) Parallel computation Finite difference time domain Rough surface Electromagnetic scattering Message passing interface
作者简介 齐国雷 男,1982年生,硕士,助理工程师,2005年毕业于信息工程大学信息工程学院,主要研究领域为电磁场数值计算、并行计算。E-majl:lazer1222@sina.com 胡浩 女,1982年生,硕士,助理工程师,主要研究领域为高性能计算。 周东方 男,1963年生,博士,教授,博士生导师,主要研究领域为高功率微波技术,微波网络均衡技术等。
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共引文献48

同被引文献16

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