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 …

Acceleration of tensor-product operations for high-order finite element methods

K Świrydowicz, N Chalmers… - … Journal of High …, 2019 - journals.sagepub.com
This article is devoted to graphics processing unit (GPU) kernel optimization and
performance analysis of three tensor-product operations arising in finite element methods …

GPU-accelerated discontinuous Galerkin methods on hybrid meshes

J Chan, Z Wang, A Modave, JF Remacle… - Journal of …, 2016 - Elsevier
We present a time-explicit discontinuous Galerkin (DG) solver for the time-domain acoustic
wave equation on hybrid meshes containing vertex-mapped hexahedral, wedge, pyramidal …

HipBone: A performance-portable graphics processing unit-accelerated C++ version of the NekBone benchmark

N Chalmers, A Mishra, D McDougall… - … Journal of High …, 2023 - journals.sagepub.com
We present hipBone, an open-source performance-portable proxy application for the
Nek5000 (and NekRS) computational fluid dynamics applications. HipBone is a fully GPU …

The implementation of spectral element method in a CAE system for the solution of elasticity problems on hybrid curvilinear meshes

D Konovalov, A Vershinin… - … and Simulation in …, 2017 - Wiley Online Library
Modern high‐performance computing systems allow us to explore and implement new
technologies and mathematical modeling algorithms into industrial software systems of …

Hybrid multigrid methods for high-order discontinuous Galerkin discretizations

N Fehn, P Munch, WA Wall, M Kronbichler - Journal of Computational …, 2020 - Elsevier
The present work develops hybrid multigrid methods for high-order discontinuous Galerkin
discretizations of elliptic problems, which are, for example, a key ingredient of …

A GPU-accelerated continuous and discontinuous Galerkin non-hydrostatic atmospheric model

DS Abdi, LC Wilcox, TC Warburton… - … Journal of High …, 2019 - journals.sagepub.com
We present a Graphics Processing Unit (GPU)-accelerated nodal discontinuous Galerkin
method for the solution of the three-dimensional Euler equations that govern the motion and …

A scalable and robust vertex-star relaxation for high-order FEM

PD Brubeck, PE Farrell - arXiv preprint arXiv:2107.14758, 2021 - arxiv.org
Pavarino proved that the additive Schwarz method with vertex patches and a low-order
coarse space gives a $ p $-robust solver for symmetric and coercive problems. However, for …

Non-periodic homogenization of 3-D elastic media for the seismic wave equation

P Cupillard, Y Capdeville - Geophysical Journal International, 2018 - academic.oup.com
Because seismic waves have a limited frequency spectrum, the velocity structure of the
Earth that can be extracted from seismic records has a limited resolution. As a consequence …