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Numerical Linear Algebra with Applications
Article . 2022 . Peer-reviewed
License: CC BY
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Article . 2023
Data sources: zbMATH Open
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Article . 2023
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High‐order multigrid strategies for hybrid high‐order discretizations of elliptic equations

High-order multigrid strategies for hybrid high-order discretizations of elliptic equations.
Authors: Daniele A. Di Pietro; Pierre Matalon; Paul Mycek; Ulrich Rüde;

High‐order multigrid strategies for hybrid high‐order discretizations of elliptic equations

Abstract

AbstractThis study compares various multigrid strategies for the fast solution of elliptic equations discretized by the hybrid high‐order method. Combinations of ‐, ‐, and ‐coarsening strategies are considered, combined with diverse intergrid transfer operators. Comparisons are made experimentally on 2D and 3D test cases, with structured and unstructured meshes, and with nested and non‐nested hierarchies. Advantages and drawbacks of each strategy are discussed for each case to establish simplified guidelines for the optimization of the time to solution.

Keywords

Multigrid methods; domain decomposition for boundary value problems involving PDEs, coarsening strategy, elliptic partial differential equation, Numerical solution of discretized equations for boundary value problems involving PDEs, hybrid high-order, multigrid

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Top 10%
Average
Average
hybrid