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Accelerated GPU Simulation of Compressible Flow by the Discontinuous Evolution Galerkin Method

Block B. J., Lukacova-Medvid’ova M., Virnau P., Yelash L.
Institute of Physics, University of Mainz, Staudingerweg 7, 55099 Mainz
European Phyisical Journal Special Topics, 2012

@article{block2012accelerated,

   title={Accelerated GPU Simulation of Compressible Flow by the Discontinuous Evolution Galerkin Method},

   author={Block B. J., Lukacova-Medvid’ova M., Virnau P., Yelash L.},

   year={2012}

}

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The aim of the present paper is to report on our recent results for GPU accelerated simulations of compressible flows. For numerical simulation the adaptive discontinuous Galerkin method with the multidimensional bicharacteristic based evolution Galerkin operator has been used. For time discretization we have applied the explicit third order Runge-Kutta method. Evaluation of the genuinely multidimensional evolution operator has been accelerated using the GPU implementation. We have obtained a speedup up to 30 (in comparison to a single CPU core) for the calculation of the evolution Galerkin operator on a typical discretization mesh consisting of 16384 mesh cells.
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