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IEICE Transactions on Information and Systems
Vol. E95.D (2012) No. 12 pp. 2787-2795

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http://doi.org/10.1587/transinf.E95.D.2787

Special Section on Parallel and Distributed Computing and Networking

In this paper, we propose and discuss efficient GPU implementation techniques of absorbing boundary conditions (ABCs) for a 3D finite-difference time-domain (FDTD) electromagnetic field simulation for antenna design. In view of architectural nature of GPUs, the idea of a periodic boundary condition is introduced to implementation of perfect matched layers (PMLs) as well as a transformation technique of PML equations for partial boundaries. We also present efficient implementation method of a non-uniform grid. The evaluation results with a typical simulation model reveal that our proposed technique almost double the simulation performance and eventually achieve the 55.8% of the peak memory bandwidth of a target GPU.

Copyright © 2012 The Institute of Electronics, Information and Communication Engineers

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