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SIAMJO
2008

An Inexact SQP Method for Equality Constrained Optimization

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An Inexact SQP Method for Equality Constrained Optimization
We present an algorithm for large-scale equality constrained optimization. The method is based on a characterization of inexact sequential quadratic programming (SQP) steps that can ensure global convergence. Inexact SQP methods are needed for large-scale applications for which the iteration matrix cannot be explicitly formed or factored and the arising linear systems must be solved using iterative linear algebra techniques. We address how to determine when a given inexact step makes sufficient progress toward a solution of the nonlinear program, as measured by an exact penalty function. The method is globalized by a line search. An analysis of the global convergence properties of the algorithm and numerical results are presented. Key words. large-scale optimization, constrained optimization, sequential quadratic programming, inexact linear system solvers, Krylov subspace methods AMS subject classifications. 49M37, 65K05, 90C06, 90C30, 90C55
Richard H. Byrd, Frank E. Curtis, Jorge Nocedal
Added 14 Dec 2010
Updated 14 Dec 2010
Type Journal
Year 2008
Where SIAMJO
Authors Richard H. Byrd, Frank E. Curtis, Jorge Nocedal
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