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Persistent URL http://purl.org/net/epubs/work/63574
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Record Id 63574
Title MPGMRES : a generalized minimum residual method with multiple preconditioners
Abstract Standard Krylov subspace methods only allow the user to choose a single preconditioner, although in many situations there may be a number of possibilities. Here we describe an extension of GMRES that allows the use of more than one preconditioner. We make some theoretical observations, propose a practical algorithm, and present numerical results from problems in domain decomposition and PDE-constrained optimization. Our results illustrate the applicability and potential of the proposed approach.
Organisation STFC , SCI-COMP
Keywords iterative methods , preconditioning , linear systems , Krylov subspaces , GMRES
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Language English (EN)
Type Details URI(s) Local file(s) Year
Report RAL Preprints RAL-P-2012-004. 2012. RAL-P-2012-004.pdf 2012