基于协同计算的FDTD区域分解并行算法研究  

Study on the Algorithm of FDTD and Domain Decomposition Based on Collaboration Computing

作　　者：冯圆[1,2] 唐晓斌[1] 龚晓燕 

机构地区：[1]中国电子科学研究院,北京100041 [2]空军预警学院,湖北武汉430019 [3]火箭军指挥学院,湖北武汉430013

出　　处：《山东农业大学学报（自然科学版）》2017年第6期858-863,共6页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：国家高技术研究发展计划(863计划)课题:复杂电磁环境数值模拟(2012AA01A308);国家安全重大基础研究课题:电磁协同计算理论与方法研究(613206)

摘　　要：本文针对传统的并行算法对电大尺寸的三维开域问题求解时,存储量和计算量偏大等问题,添加了区域分解方法,使用Despres传输条件依虚拟边界划分子区域,对三维问题进行分解,从而实现基于协同计算平台的FDTD区域分解并行算法。通过对三维金属导体方块测试其算法的准确性,并以16×18个伞形阵列天线为例,进行辐射特性计算。通过测试在相同CPU核数条件下,不同与相同维度虚拟拓扑的并行性能,实现算法的效率优化。Considering the large size 3D open domain problem solving storage and calculated amount is too large in thetraditional parallel algorithm, this paper added a domain decomposition method, the Despres transmission condition is usedto divide the molecular region of the virtual boundary and decompose the 3d problem to realize the parallel algorithm ofFDTD regional decomposition based on collaborative computing platform. By testing the algorithmic veracity of the threedimensional metal conductor block, the radiation characteristics are calculated by taking 16×18 umbrella array antennas as anexample. The algorithmic efficiency was optimized under the same CPU kernel number by testing the parallel performance ofvirtual topology in different and identical dimensions.

关 键 词：区域分解 FDTD 协同计算 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]