Multi-GPU numerical simulation of electromagnetic waves

Philippe Helluy 1, 2 Thomas Strub 1, 3
2 TONUS - TOkamaks and NUmerical Simulations
IRMA - Institut de Recherche Mathématique Avancée, Inria Nancy - Grand Est
Abstract : In this paper we present three-dimensional numerical simulations of electromagnetic waves. The Maxwell equations are solved by the Discontinuous Galerkin (DG) method. For achieving high performance, we exploit two levels of parallelism. The coarse grain parallelism is managed through MPI and a classical domain decomposition. The fine grain parallelism is managed with OpenCL in order to optimize the local computations on multicore processors or GPU's. We present several numerical experiments and performance comparisons.
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Submitted on : Tuesday, December 17, 2013 - 11:17:43 AM
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  • HAL Id : hal-00919702, version 1



Philippe Helluy, Thomas Strub. Multi-GPU numerical simulation of electromagnetic waves. ESAIM: Proceedings, EDP Sciences, 2014, 45, pp.199-208. ⟨hal-00919702⟩



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