FLEXI: A high order discontinuous Galerkin framework for hyperbolic–parabolic conservation laws

N Krais, A Beck, T Bolemann, H Frank, D Flad… - … & Mathematics with …, 2021 - Elsevier
High order (HO) schemes are attractive candidates for the numerical solution of multiscale
problems occurring in fluid dynamics and related disciplines. Among the HO discretization …

Fast matrix-free evaluation of discontinuous Galerkin finite element operators

M Kronbichler, K Kormann - ACM Transactions on Mathematical …, 2019 - dl.acm.org
We present an algorithmic framework for matrix-free evaluation of discontinuous Galerkin
finite element operators. It relies on fast quadrature with sum factorization on quadrilateral …

Multigrid for matrix-free high-order finite element computations on graphics processors

M Kronbichler, K Ljungkvist - ACM Transactions on Parallel Computing …, 2019 - dl.acm.org
This article presents matrix-free finite-element techniques for efficiently solving partial
differential equations on modern many-core processors, such as graphics cards. We …

A matrix–free high–order solver for the numerical solution of cardiac electrophysiology

PC Africa, M Salvador, P Gervasio, L Dede… - Journal of …, 2023 - Elsevier
We propose a matrix–free solver for the numerical solution of the cardiac electrophysiology
model consisting of the monodomain nonlinear reaction–diffusion equation coupled with a …

[PDF][PDF] ExaDG: High-order discontinuous Galerkin for the exa-scale

D Arndt, N Fehn, G Kanschat, K Kormann… - Software for exascale …, 2020 - library.oapen.org
This text presents contributions to efficient high-order finite element solvers in the context of
the project ExaDG, part of the DFG priority program 1648 Software for Exascale Computing …

A weakly compressible hybridizable discontinuous Galerkin formulation for fluid–structure interaction problems

A La Spina, M Kronbichler, M Giacomini… - Computer Methods in …, 2020 - Elsevier
A scheme for the solution of fluid–structure interaction (FSI) problems with weakly
compressible flows is proposed in this work. A novel hybridizable discontinuous Galerkin …

[HTML][HTML] GALÆXI: Solving complex compressible flows with high-order discontinuous Galerkin methods on accelerator-based systems

M Kurz, D Kempf, MP Blind, P Kopper… - Computer Physics …, 2025 - Elsevier
This work presents GALÆXI as a novel, energy-efficient flow solver for the simulation of
compressible flows on unstructured hexahedral meshes leveraging the parallel computing …

[HTML][HTML] GPU-based matrix-free finite element solver exploiting symmetry of elemental matrices

U Kiran, SS Gautam, D Sharma - Computing, 2020 - Springer
Matrix-free solvers for finite element method (FEM) avoid assembly of elemental matrices
and replace sparse matrix-vector multiplication required in iterative solution method by an …

High-order matrix-free incompressible flow solvers with GPU acceleration and low-order refined preconditioners

M Franco, JS Camier, J Andrej, W Pazner - Computers & Fluids, 2020 - Elsevier
We present a matrix-free flow solver for high-order finite element discretizations of the
incompressible Navier-Stokes and Stokes equations with GPU acceleration. For high …

Implicit two-derivative deferred correction time discretization for the discontinuous Galerkin method

J Zeifang, J Schütz - Journal of Computational Physics, 2022 - Elsevier
In this paper, we use an implicit two-derivative deferred correction time discretization
approach and combine it with a spatial discretization of the discontinuous Galerkin spectral …