Parallel discontinuous Galerkin unstructured mesh solvers for the calculation of 3D heterogeneous wave propagation problems

Stephane Lanteri 1 Marc Bernacki 2 Loula Fezoui 1 Serge Piperno 3
1 CAIMAN - Scientific computing, modeling and numerical analysis
CRISAM - Inria Sophia Antipolis - Méditerranée , ENPC - École des Ponts ParisTech, CNRS - Centre National de la Recherche Scientifique : UMR6621
Abstract : We discuss the parallel performances of discontinuous Galerkin solvers designed on unstructured tetrahedral meshes for the calculation of three-dimensional heterogeneous electromagnetic and aeroacoustic wave propagation problems. An explicit leap-frog time-scheme along with centered numerical fluxes are used in the proposed discontinuous Galerkin time-domain (DGTD) methods. The schemes introduced are genuinely non-dissipative, in order to achieve a discrete equivalent of the energy conservation. Parallelization of these schemes is based on a standard strategy that combines mesh partitioning and a message passing programming model. The resulting parallel solvers are applied and evaluated on several large-scale, homogeneous and heterogeneous, wave propagation problems.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-01858316
Contributeur : Marc Bernacki <>
Soumis le : lundi 20 août 2018 - 13:46:06
Dernière modification le : lundi 12 novembre 2018 - 11:02:54

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Stephane Lanteri, Marc Bernacki, Loula Fezoui, Serge Piperno. Parallel discontinuous Galerkin unstructured mesh solvers for the calculation of 3D heterogeneous wave propagation problems. Distributed Computing and its Applications in Business, Engineering and Sciences (DCABES), Aug 2005, Greenwich, United Kingdom. ⟨10.1016/j.apm.2005.06.015⟩. ⟨hal-01858316⟩

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