Comparison of CPML implementations for the GPU-accelerated FDTD solver

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Abstract

Three distinctively different implementations of convolutional perfectly matched layer for the FDTD method on CUDA enabled graphics processing units are presented. All implementations store ad- ditional variables only inside the convolutional perfectly matched lay- ers, and the computational speeds scale according to the thickness of these layers. The merits of the different approaches are discussed, and a comparison of computational performance is made using complex real-life benchmarks.

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Toivanen, J. I., Stefanski, T. P., Kuster, N., & Chavannes, N. (2011). Comparison of CPML implementations for the GPU-accelerated FDTD solver. Progress In Electromagnetics Research M, 19, 61–75. https://doi.org/10.2528/PIERM11061002

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