Nonuniformly weighted Schwarz smoothers for spectral element multigrid

DOI10.1007/s10915-016-0345-zzbMath1371.65122arXiv1512.02390OpenAlexW2963867113MaRDI QIDQ2399153

Jörg Stiller

Publication date: 22 August 2017

Published in: Journal of Scientific Computing (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1512.02390

zbMATH Keywords

convergencespectral element methodSchwarz methodsconjugate gradient methodmultigrid methodPoisson equationnumerical experiment\(p\)-version finite element method

Mathematics Subject Classification ID

Multigrid methods; domain decomposition for boundary value problems involving PDEs (65N55) Spectral, collocation and related methods for boundary value problems involving PDEs (65N35) Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30) Iterative numerical methods for linear systems (65F10) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)

Related Items (8)

A spectral deferred correction method for incompressible flow with variable viscosity ⋮ Robust multigrid for high-order discontinuous Galerkin methods: a fast Poisson solver suitable for high-aspect ratio Cartesian grids ⋮ Hybrid multigrid methods for high-order discontinuous Galerkin discretizations ⋮ Scaling to the stars -- a linearly scaling elliptic solver for \(p\)-multigrid ⋮ Manycore Parallel Computing for a Hybridizable Discontinuous Galerkin Nested Multigrid Method ⋮ Fast tensor product Schwarz smoothers for high-order discontinuous Galerkin methods ⋮ A Performance Comparison of Continuous and Discontinuous Galerkin Methods with Fast Multigrid Solvers ⋮ Efficient high-order spectral element discretizations for building block operators of CFD

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