An Efficient Domain Decomposition Parallel Scheme for Leapfrog ADI-FDTD Method

An Efficient Domain Decomposition Parallel Scheme for Leapfrog ADI-FDTD Method
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Leapfrog ADI-FDTD方法的高效域分解并行方案

DOI:
10.1109/tap.2016.2647587
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发表时间:
2017-01
影响因子:
5.7
通讯作者:
R. S. Chen
R. S. Chen
中科院分区:
计算机科学2区
文献类型:
--
作者:
H.G. Bao;R. S. Chen

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针对无条件稳定时域有限差分法(FDTD),提出了一种灵活、通用的区域分解并行格式。采用蛙跳交替方向隐式FDTD(ADI-FDTD)方法消除了Courant-Friedrichs-Lewy稳定性条件的限制。所提出的区域分解并行实现的蛙跳ADI-FDTD方法是更灵活的进程分配,需要较少的数据通信。在每个时间步引入一个缓冲区来解耦相邻子域之间的相互作用。电磁仿真证明了所提出的方法的适用性,准确性和效率。
A flexible and universal domain decomposition parallel scheme is proposed for the unconditionally stable finite-difference time-domain (FDTD) method. The leapfrog alternating direction implicit FDTD (ADI-FDTD) method is employed to eliminate the restriction of the Courant–Friedrichs–Lewy stability condition. The proposed domain decomposition parallel implementation of the leapfrog ADI-FDTD method is more flexible with process allocation and requires fewer data communications. A buffer region is introduced to decouple the interactions between neighboring subdomains at each time step. Electromagnetic simulations are presented to demonstrate the applicability, accuracy, and efficiency of the proposed method.
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