Browse > Article
http://dx.doi.org/10.6109/jkiice.2022.26.2.181

An algebraic multigrids based prediction of a numerical solution of Poisson-Boltzmann equation for a generation of deep learning samples  

Shin, Kwang-Seong (Department of Digital Content Engineering, Wonkwang University)
Jo, Gwanghyun (Department of Mathematics, Kunsan National University)
Abstract
Poisson-Boltzmann equation (PBE) is used to model problems arising from various disciplinary including bio-pysics and colloid chemistry. Therefore, to predict a numerical solution of PBE is an important issue. The authors proposed deep learning based methods to solve PBE while the computational time to generate finite element method (FEM) solutions were bottlenecks of the algorithms. In this work, we shorten the generation time of FEM solutions in two directions. First, we experimentally find certain penalty parameter in a bilinear form. Second, we applied algebraic multigrids methods to the algebraic system so that condition number is bounded regardless of the meshsize. In conclusion, we have reduced computation times to solve algebraic systems for PBE. We expect that algebraic multigrids methods can be further employed in various disciplinary to generate deep learning samples.
Keywords
Algebraic multigrid methods; Poisson boltzmann equation; Uniform grids; Immersed finite element method;
Citations & Related Records
연도 인용수 순위
  • Reference
1 G. Borlesk and Y. C. Zhou, "Enriched gradient recovery for interface solutions of the Poisson-Boltzmann equation," Journal of Computational Physics, vol. 421, Article ID: 109725, Nov. 2020.
2 V. Ramm, J. H. Chaudry, and C. D. Cooper, "Efficient mesh refinement for the Poisson-Boltzmann equation with boundary elements," Journal of Computational Chemistry, vol. 42, no. 12, pp. 855-869, Mar. 2021.   DOI
3 S. Wang, E. Alexov, and S. Zhao, "On regularization of charge singularities in solving the Poisson-Boltzmann equation with a smooth solute-solvent boundary," Mathematical Biosciences and Engineering, vol. 18, no. 2, pp. 1370-1405, Jun. 2021.   DOI
4 I. Kwon and D. Y. Kwak, "Discontinuous bubble immersed finite element method for Poisson-Boltzmann equation," Communications in Computational Physics, vol. 25, no. 3, pp. 928-946, Aug. 2019.
5 I. Kwon, D. Y. Kwak, and G. Jo, "Discontinuous bubble immersed finite element method for Poisson-Boltzmann-Nernst-Plank model," Journal of Computational Physics, vol. 438, Article ID: 110370, Aug. 2021.
6 K. In, G. Jo, and K. S. Shin, "A deep neural netwok based on ResNet for predicting solutions of Poisson-Boltzmann eequation," Electronics, vol. 10, no. 21, pp. 2627, Oct. 2021.   DOI
7 J. Xu and L. Zikatanov, "Algebraic multigrid methods," Acta numerica, vol. 26, pp. 591-721, May. 2017.   DOI
8 S. H. Chou, D. Y. Kwak, and K. T. Wee, "Optimal convergence analysis of an immersed interface finite element method," Advances in Computational Mathematics, vol. 33, no. 2, pp. 149-168, Mar. 2009.   DOI