Search Results for author: Paul Häusner

Found 3 papers, 3 papers with code

Learning incomplete factorization preconditioners for GMRES

1 code implementation12 Sep 2024 Paul Häusner, Aleix Nieto Juscafresa, Jens Sjölund

Incomplete factorization methods are one of the most commonly applied algebraic preconditioners for sparse linear equation systems and are able to speed up the convergence of Krylov subspace methods.

Graph Neural Network

Neural incomplete factorization: learning preconditioners for the conjugate gradient method

1 code implementation25 May 2023 Paul Häusner, Ozan Öktem, Jens Sjölund

The convergence of the conjugate gradient method for solving large-scale and sparse linear equation systems depends on the spectral properties of the system matrix, which can be improved by preconditioning.

Computational Efficiency

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