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Type: Artigo de periódico
Title: A safeguard approach to detect stagnation of GMRES(m) with applications in Newton-Krylov methods
Author: Gomes-Ruggiero, MA
Lopes, VLR
Toledo-Benavides, JV
Abstract: Restarting GMRES, a linear solver frequently used in numerical schemes, is known to suffer from stagnation. In this paper, a simple strategy is proposed to detect and avoid stagnation, without modifying the standard GMRES code. Numerical tests with the proposed modified GMRES(m) procedure for solving linear systems and also as part of an inexact Newton procedure, demonstrate the efficiency of this strategy.
Subject: linear systems
restarting GMRES
inexact Newton method
nonlinear systems
Country: Brasil
Editor: Soc Brasileira Matematica Aplicada & Computacional
Rights: aberto
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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