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GPU Accelerated Adams-Bashforth Multirate Discontinuous Galerkin FEM Simulation of High-Frequency Electromagnetic Fields

Nico Godel, Steffen Schomann, Tim Warburton, Markus Clemens
Fac. of Electr. Eng., Helmut-Schmidt Univ., Hamburg, Germany
IEEE Transactions on Magnetics, Vol. 46, no. 8, pp. 2735-2738. Aug 2010

@article{godel2010gpu,

   title={GPU Accelerated Adams–Bashforth Multirate Discontinuous Galerkin FEM Simulation of High-Frequency Electromagnetic Fields},

   author={Godel, N. and Schomann, S. and Warburton, T. and Clemens, M.},

   journal={Magnetics, IEEE Transactions on},

   volume={46},

   number={8},

   pages={2735–2738},

   issn={0018-9464},

   year={2010},

   publisher={IEEE}

}

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A multirate Adams-Bashforth (AB) scheme for simulation of electromagnetic wave propagation using the discontinuous Galerkin finite element method (DG-FEM) is presented. The algorithm is adapted such that single-instruction multiple-thread (SIMT) characteristic for the implementation on a graphics processing unit (GPU) is preserved. A domain decomposition strategy respecting the multirate classification for computation on multiple GPUs is presented. Accuracy and performance is analyzed with help of suitable benchmarks.
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