PC集群系統(tǒng)中MPI并行矩量法研究
Study of Parallel MoM on PC Clusters
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摘要: 針對復(fù)雜環(huán)境的電磁兼容分析中計算量過大、耗時太長的障礙,該文組建了一個高性能PC集群系統(tǒng),以 此為硬件平臺研究了MPI并行環(huán)境下的并行矩量法。論文首先給出了與并行共軛梯度法求解矩陣方程對應(yīng)的矩量 法矩陣的棋盤塊劃分方式,然后詳細地討論了并行共軛梯度算法求解矩量法矩陣方程的并行實現(xiàn)。作為應(yīng)用實例計 算了某飛行器模型的散射特性,并測試了在PC集群系統(tǒng)中本文并行矩量法程序的性能。
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關(guān)鍵詞:
- 電磁散射; PC群集系統(tǒng); 并行計算; 矩量法
Abstract: Prohibitive computation resources and too much time are needed for EMC analysis of complicated EM environment. To overcome this drawback, a parallel algorithm that combined MoM with MPI functions is studied in this paper. The tessellation scheme is employed for parallel filling the impedance matrix and parallel conjugate gradient method is used to solve the matrix equation. The performance of the parallel code on PC clusters is analyzed and numerical results show its efficiency. -
Rao S M, Wilton D R, Glisson A W. Electromagnetic scattering by surfaces of arbitrary shape. IEEE Trans. on Antennas Propagat., 1982, AP-30(5): 409 - 418.[2]Shen Xianneng. Application of massively parallel architecture to computational electromagnetics. Tech. Report of Syracuse University, 1994.[3]張玉,蘇濤,翟會清,梁昌洪.PC群集系統(tǒng)中并行矩量法研究.電子學報,2003,31(9):1368-1371.[4]都志輝,高性能計算并行編程技術(shù)[M].北京:清華大學出版社,2001:192-204. -
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