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88 lines
2.4 KiB
88 lines
2.4 KiB
5 years ago
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// Copyright (C) 2004, 2009 International Business Machines and others.
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// All Rights Reserved.
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// This code is published under the Eclipse Public License.
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//
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// $Id: IpConvCheck.hpp 1861 2010-12-21 21:34:47Z andreasw $
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//
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// Authors: Carl Laird, Andreas Waechter IBM 2004-08-13
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#ifndef __IPCONVCHECK_HPP__
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#define __IPCONVCHECK_HPP__
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#include "IpAlgStrategy.hpp"
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namespace Ipopt
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{
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/** Base class for checking the algorithm
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* termination criteria.
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*/
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class ConvergenceCheck : public AlgorithmStrategyObject
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{
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public:
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/**@name Constructors/Destructors */
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//@{
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/** Constructor */
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ConvergenceCheck()
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{}
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/** Default destructor */
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virtual ~ConvergenceCheck()
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{}
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//@}
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/** Convergence return enum */
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enum ConvergenceStatus {
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CONTINUE,
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CONVERGED,
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CONVERGED_TO_ACCEPTABLE_POINT,
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MAXITER_EXCEEDED,
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CPUTIME_EXCEEDED,
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DIVERGING,
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USER_STOP,
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FAILED
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};
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/** overloaded from AlgorithmStrategyObject */
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virtual bool InitializeImpl(const OptionsList& options,
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const std::string& prefix) = 0;
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/** Pure virtual method for performing the convergence test. If
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* call_intermediate_callback is true, the user callback method
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* in the NLP should be called in order to see if the user
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* requests an early termination. */
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virtual ConvergenceStatus
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CheckConvergence(bool call_intermediate_callback = true) = 0;
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/** Method for testing if the current iterate is considered to
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* satisfy the "accptable level" of accuracy. The idea is that
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* if the desired convergence tolerance cannot be achieved, the
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* algorithm might stop after a number of acceptable points have
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* been encountered. */
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virtual bool CurrentIsAcceptable()=0;
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private:
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/**@name Default Compiler Generated Methods
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* (Hidden to avoid implicit creation/calling).
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* These methods are not implemented and
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* we do not want the compiler to implement
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* them for us, so we declare them private
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* and do not define them. This ensures that
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* they will not be implicitly created/called. */
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//@{
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/** Default Constructor */
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// ConvergenceCheck();
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/** Copy Constructor */
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ConvergenceCheck(const ConvergenceCheck&);
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/** Overloaded Equals Operator */
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void operator=(const ConvergenceCheck&);
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//@}
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};
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} // namespace Ipopt
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#endif
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