Although in the last years the BiCGStab has been employed with success to handle large linear systems arising from the RWG MoM discretization of electromagnetic scattering problems formulated by EFIE, its nested version, the N-BiCGstab, has received little attention. In this work, an analysis of its performances is presented. It demonstrates that N-BiCGStab is, at least in the examined cases, faster and more robust than the standard BiCGStab coupled with diagonal or ILU preconditioning.

Nested BICGSTAB Complex Linear Systems Arising from Discretization of EFIE

G. ANGIULLI
;
CALCAGNO S;A. SGRO'
2012-01-01

Abstract

Although in the last years the BiCGStab has been employed with success to handle large linear systems arising from the RWG MoM discretization of electromagnetic scattering problems formulated by EFIE, its nested version, the N-BiCGstab, has received little attention. In this work, an analysis of its performances is presented. It demonstrates that N-BiCGStab is, at least in the examined cases, faster and more robust than the standard BiCGStab coupled with diagonal or ILU preconditioning.
2012
Krylov Subspace Methods;
Electromagnetic Scattering;
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12318/1231
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact