Fast interior point solution of quadratic programming problems arising from PDE-constrained optimization.

Fast interior point solution of quadratic programming problems arising from PDE-constrained optimization.
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DOI:
10.1007/s00211-017-0892-8
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发表时间:
2017
影响因子:
2.1
通讯作者:
Gondzio J
Gondzio J
中科院分区:
数学2区
文献类型:
--
作者:
Pearson JW;Gondzio J

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Interior point methods provide an attractive class of approaches for solving linear, quadratic and nonlinear programming problems, due to their excellent efficiency and wide applicability. In this paper, we consider PDE-constrained optimization problems with bound constraints on the state and control variables, and their representation on the discrete level as quadratic programming problems. To tackle complex problems and achieve high accuracy in the solution, one is required to solve matrix systems of huge scale resulting from Newton iteration, and hence fast and robust methods for these systems are required. We present preconditioned iterative techniques for solving a number of these problems using Krylov subspace methods, considering in what circumstances one may predict rapid convergence of the solvers in theory, as well as the solutions observed from practical computations.
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发表时间: 2009-01-01
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