Parallel implementation of extended node patch preconditioner for electromagnetic 3D full-wave FEM problem

Author

Murayama, Toshio ; Nishikawa, Kenzo ; Yoshimura, Shinobu

Author_Institution

Production Group, Sony Corp., Tokyo, Japan

fYear

2010

fDate

9-12 May 2010

Firstpage

1

Lastpage

1

Abstract

A novel extended node patch preconditioner is efficiently implemented in parallel and used to calculate time-harmonic full-wave electromagnetic problems. A multicolor ordering of the preconditioner based on a block Gauss-Seidel iteration is employed. Possible conflicts in updating the residual in parallel calculations due to a geometrical overlap among the sub-blocks are suitably solved by careful ordering without deteriorating the convergence. Numerical results show the robustness of our proposed preconditioner and efficiency of its parallel implementation.

Keywords

computational electromagnetics; electromagnetic wave propagation; finite element analysis; iterative methods; block Gauss-Seidel iteration; electromagnetic 3D full-wave FEM problem; extended node patch preconditioner; time-harmonic full-wave electromagnetic problem; Convergence; Electromagnetic scattering; Finite element methods; Gaussian processes; Matrix decomposition; Null space; Production systems; Robustness; Technological innovation; Yarn;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on

Conference_Location

Chicago, IL

Print_ISBN

978-1-4244-7059-4

Type

conf

DOI

10.1109/CEFC.2010.5481459

Filename

5481459