Study of MPI based on parallel MOM on PC clusters for EM-beam scattering by 2-D PEC rough surfaces

doi:10.1088/1674-1056/18/8/050

Abstract

Abstract This paper firstly applies the finite impulse response filter (FIR) theory combined with the fast Fourier transform (FFT) method to generate two-dimensional Gaussian rough surface. Using the electric field integral equation (EFIE), it introduces the method of moment (MOM) with RWG vector basis function and Galerkin's method to investigate the electromagnetic beam scattering by a two-dimensional PEC Gaussian rough surface on personal computer (PC) clusters. The details of the parallel conjugate gradient method (CGM) for solving the matrix equation are also presented and the numerical simulations are obtained through the message passing interface (MPI) platform on the PC clusters. It finds significantly that the parallel MOM supplies a novel technique for solving a two-dimensional rough surface electromagnetic-scattering problem. The influences of the root-mean-square height, the correlation length and the polarization on the beam scattering characteristics by two-dimensional PEC Gaussian rough surfaces are finally discussed.

Keywords: electromagnetic scattering rough surface beam parallel computing

Received: 30 December 2008
Revised: 13 February 2009
Accepted manuscript online:

PACS:	41.20.Jb	(Electromagnetic wave propagation; radiowave propagation)
	02.30.Uu	(Integral transforms)
	02.60.Cb	(Numerical simulation; solution of equations)
	02.60.Nm	(Integral and integrodifferential equations)
	02.70.Dh	(Finite-element and Galerkin methods)
	78.68.+m	(Optical properties of surfaces)

Fund: Project supported by the National Natural Science Foundation of China (Grant No 60571058) and the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No 20070701010).

Cite this article:

Ma Jun(麻军), Guo Li-Xin(郭立新), and Wang An-Qi(王安琪) Study of MPI based on parallel MOM on PC clusters for EM-beam scattering by 2-D PEC rough surfaces 2009 Chin. Phys. B 18 3431

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Study of MPI based on parallel MOM on PC clusters for EM-beam scattering by 2-D PEC rough surfaces

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