An efficient deflation technique for the communication-avoiding conjugate gradient

zbMath1312.65040MaRDI QIDQ2341373

James Demmil, Nicholas Knight, Erin Claire Carson

Publication date: 24 April 2015

Published in: ETNA. Electronic Transactions on Numerical Analysis (Search for Journal in Brave)

Full work available at URL: http://www.emis.de/journals/ETNA/volumes/2011-2020/vol43/abstract_vol43_pp125-141.html

zbMATH Keywords

conjugate gradient methodsparse matricesdeflationpreconditionernumerical experimentKrylov subspace methodsiterative solversminimizing communication

Mathematics Subject Classification ID

Computational methods for sparse matrices (65F50) Iterative numerical methods for linear systems (65F10) Parallel numerical computation (65Y05) Complexity and performance of numerical algorithms (65Y20) Preconditioners for iterative methods (65F08)

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Avoiding Communication in Primal and Dual Block Coordinate Descent Methods ⋮ s-Step Enlarged Krylov Subspace Conjugate Gradient Methods

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