Implementation of a GPU-Oriented Absorbing Boundary Condition for 3D-FDTD Electromagnetic Simulation

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著者

    • DOHI Keisuke
    • the Department of Science and Technology, Graduate School of Engineering, Nagasaki University
    • SHIBATA Yuichiro
    • the Division of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagasaki University
    • OGURI Kiyoshi
    • the Division of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagasaki University
    • FUJIMOTO Takafumi
    • the Division of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagasaki University

抄録

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

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.

収録刊行物

  • IEICE transactions on information and systems

    IEICE transactions on information and systems 95(12), 2787-2795, 2012-12-01

    電子情報通信学会

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各種コード

  • NII論文ID(NAID)
    10031161443
  • NII書誌ID(NCID)
    AA10826272
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09168532
  • データ提供元
    CJP書誌  IR  J-STAGE 
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