A new adaptive restart for GMRES(m) method

Linjie Zhang, Takashi Nodera

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

GMRES(m) is a Krylov subspace method for solving nonsymmetric linear systems of equations. The difficulty of this method lies in choosing the appropriate restart cycle m. We propose a new strategy for the adaptive restart for GMRES(m) which is based on using the difference of the Ritz and harmonic Ritz values. We also report on numerical experiments which show that this new approach is both effective and robust.

Original languageEnglish
Pages (from-to)C409-C425
JournalANZIAM Journal
Volume46
Issue number5 ELECTRONIC SUPPL.
Publication statusPublished - 2004 Dec 1

ASJC Scopus subject areas

  • Mathematics (miscellaneous)

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