Pascal Hénon
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View article: Recycling Krylov Subspaces and Truncating Deflation Subspaces for Solving Sequence of Linear Systems
Recycling Krylov Subspaces and Truncating Deflation Subspaces for Solving Sequence of Linear Systems Open
This article presents deflation strategies related to recycling Krylov subspace methods for solving one or a sequence of linear systems of equations. Besides well-known strategies of deflation, Ritz-, and harmonic Ritz-based deflation, we …
View article: Enlarged GMRES for reducing communication
Enlarged GMRES for reducing communication Open
We propose a variant of the GMRES method for solving linear systems of equations with one or multiple right-hand sides.Our method is based on the idea of the enlarged Krylov subspace to reduce communication.It can be interpreted as a block…