A Cartesian FMM-accelerated Galerkin boundary integral Poisson-Boltzmann solver
A Cartesian FMM-accelerated Galerkin boundary integral Poisson-Boltzmann solver
复制标题
笛卡尔 FMM 加速伽辽金边界积分泊松-玻尔兹曼求解器
DOI:
10.1016/j.jcp.2023.111981
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发表时间:
2023
影响因子:
4.1
通讯作者:
Geng, Weihua
中科院分区:
文献类型:
--
作者:
Chen, Jiahui;Tausch, Johannes;Geng, Weihua
Abstract The Poisson-Boltzmann model is an effective and popular approach for modeling solvated biomolecules in continuum solvent with dissolved electrolytes. In this paper, we report our recent work in developing a Galerkin boundary integral method for solving the linear Poisson-Boltzmann (PB) equation. The solver has combined advantages in accuracy, efficiency, and memory usage as it applies a well-posed boundary integral formulation to circumvent many numerical difficulties associated with the PB equation and uses an O (N) Cartesian Fast Multipole Method (FMM) to accelerate the GMRES iteration. In addition, special numerical treatments such as adaptive FMM order, block diagonal preconditioners, Galerkin discretization, and Duffy's transformation are combined to improve the performance of the solver, which is validated on benchmark Kirkwood's sphere and a series of testing proteins.
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影响因子:
3.7
作者:
Lei Wang;R. Krasny;Svetlana Tlupova
通讯作者:
Lei Wang;R. Krasny;Svetlana Tlupova
影响因子:
5.6
作者:
Unwin, N
通讯作者:
Unwin, N
影响因子:
3.4
作者:
Dong, F;Vijayakumar, M;Zhou, HX
通讯作者:
Zhou, HX
影响因子:
4.1
作者:
Egan, Raphael;Gibou, Frederic
通讯作者:
Gibou, Frederic
DOI:
10.1016/j.cpc.2020.107742
发表时间:
2021-03
期刊:
Comput. Phys. Commun.
影响因子:
--
作者:
Jiahui Chen;Weihua Geng;D. Reynolds
通讯作者:
Jiahui Chen;Weihua Geng;D. Reynolds