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

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4 Author(s)
Gödel, N. ; Fac. of Electr. Eng., Helmut-Schmidt Univ., Hamburg, Germany ; Schomann, S. ; Warburton, T. ; Clemens, M.

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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Magnetics, IEEE Transactions on  (Volume:46 ,  Issue: 8 )