5 citations · 5 across the 14 of their papers we have counts for
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Multigrid p-Robustness at Jacobi Speeds: Efficient Matrix-Free Implementation of Local p-Multigrid Solvers
Michał Wichrowski
Vertex-patch smoothers are essential for the robust convergence of geometric multigrid methods in high-order finite element applications, yet their adoption is traditionally hinder…
Local Solvers for High-Order Patch Smoothers via p-Multigrid
Michał Wichrowski
I propose a vertex patch smoother where local problems are solved inexactly by a nested, matrix-free p-multigrid, creating a multigrid-within-multigrid framework. A single iteratio…
A Geometric Multigrid Preconditioner for Discontinuous Galerkin Shifted Boundary Method
Michal Wichrowski
This paper introduces a geometric multigrid preconditioner for the Shifted Boundary Method (SBM) designed to solve PDEs on complex geometries. While SBM simplifies mesh generation…
Matrix-Free Methods for Finite-Strain Elasticity: Automatic Code Generation with No Performance Overhead
Michał Wichrowski, Mohsen Rezaee-Hajidehi, Jože Korelc +2
This study explores matrix-free tangent evaluations in finite-strain elasticity with the use of automatically-generated code for the quadrature-point level calculations. The code g…
Matrix-Free Ghost Penalty Evaluation via Tensor Product Factorization
Michał Wichrowski
We present a matrix-free approach for implementing ghost penalty stabilization in Cut Finite Element Methods (CutFEM). While matrix-free methods for CutFEM have been developed, the…