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Preconditioned generalized minimal residual iterative scheme for perfectly matched layer terminated applications

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2 Author(s)
Botros, Y.Y. ; Radiation Lab., Michigan Univ., Ann Arbor, MI, USA ; Volakis, J.L.

The anisotropic and active properties of the perfectly matched layer (PML) absorbers significantly deteriorate the finite-element method (FEM) system condition and as a result, convergence of the iterative solver is substantially affected. To address this issue, we examine the generalized minimal residual (GMRES) solver for solving finite-element systems terminated with PML. A strong approximate inverse preconditioner (AIPC) is coupled with a GMRES solver to speed up convergence and consequently reduce the overall CPU time

Published in:

Microwave and Guided Wave Letters, IEEE  (Volume:9 ,  Issue: 2 )

Date of Publication:

Feb 1999

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