@inbook{cfb285105ccd43da875caa2588ece1d2,
title = "Exadg: High-order discontinuous galerkin for the exa-scale",
abstract = "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 (SPPEXA). The main algorithmic components are the matrix-free evaluation of finite element and discontinuous Galerkin operators with sum factorization to reach a high node-level performance and parallel scalability, a massively parallel multigrid framework, and efficient multigrid smoothers. The algorithms have been applied in a computational fluid dynamics context. The software contributions of the project have led to a speedup by a factor 3 − 4 depending on the hardware. Our implementations are available via the deal.II finite element library.",
author = "Daniel Arndt and Niklas Fehn and Guido Kanschat and Katharina Kormann and Martin Kronbichler and Peter Munch and Wall, {Wolfgang A.} and Julius Witte",
note = "Publisher Copyright: {\textcopyright} The Author(s) 2020.",
year = "2020",
doi = "10.1007/978-3-030-47956-5_8",
language = "English",
series = "Lecture Notes in Computational Science and Engineering",
publisher = "Springer",
pages = "189--224",
booktitle = "Lecture Notes in Computational Science and Engineering",
}