The characteristic basis function method (CBFM) was developed as an algorithm to accelerate the analysis based on direct matrix solver. In CBFM, the optimum block size greatly influences the overall analysis time. In this paper, we propose a guideline for setting the optimal block size that can be applied to every algorithm based on CBFM. Rough estimation of the optimal block size is LB rough 0.05 N6/29 , and the exact optimal block size can be determined through preprocessing based on rough estimation. Numerical results of electromagnetic scattering problems are shown to demonstrate the performance of the proposed method.
Bibliographical noteFunding Information:
Manuscript received October 25, 2017; revised March 22, 2018; accepted July 5, 2018. Date of publication July 26, 2018; date of current version October 4, 2018. This work was supported by Agency for Defense Development. (Corresponding author: Jong-Gwan Yook.) C.-S. Park, Y.-R. Jeong, and J.-G. Yook are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, South Korea (e-mail: firstname.lastname@example.org). I.-P. Hong is with the School of Information and Communication Engineering, Kongju National University, Gongju 331-717, South Korea. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TAP.2018.2860047
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering