Algebraic multigrid preconditioning of the Hessian in optimization constrained by a partial differential equation
Algebraic multigrid preconditioning of the Hessian in optimization constrained by a partial differential equation
复制标题
偏微分方程约束优化中 Hessian 的代数多重网格预处理
DOI:
10.1002/nla.2333
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发表时间:
2020
影响因子:
4.3
通讯作者:
Drăgănescu, Andrei
中科院分区:
文献类型:
--
作者:
Barker, Andrew T.;Drăgănescu, Andrei
We construct an algebraic multigrid (AMG) based preconditioner for the reduced Hessian of a linear‐quadratic optimization problem constrained by an elliptic partial differential equation. While the preconditioner generalizes a geometric multigrid preconditioner introduced in earlier works, its construction relies entirely on a standard AMG infrastructure built for solving the forward elliptic equation, thus allowing for it to be implemented using a variety of AMG methods and standard packages. Our analysis establishes a clear connection between the quality of the preconditioner and the AMG method used. The proposed strategy has a broad and robust applicability to problems with unstructured grids, complex geometry, and varying coefficients. The method is implemented using the Hypre package and several numerical examples are presented.
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影响因子:
2.1
作者:
Biros, George;Dogan, Guenay
通讯作者:
Dogan, Guenay
影响因子:
1.9
作者:
W. Hackbusch
通讯作者:
W. Hackbusch
影响因子:
4.3
作者:
S. MacLachlan;Luke N. Olson
通讯作者:
S. MacLachlan;Luke N. Olson
影响因子:
4.3
作者:
M. Brezina;P. Vanek;P. Vassilevski
通讯作者:
M. Brezina;P. Vanek;P. Vassilevski
DOI:
10.1090/s0025-5718-08-02100-5
发表时间:
2008
期刊:
Math. Comput.
影响因子:
--
作者:
Andrei Draganescu;T. Dupont
通讯作者:
T. Dupont