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452 lines
17 KiB
452 lines
17 KiB
6 years ago
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// Copyright (C) 2004, 2007 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: IpNLPScaling.hpp 2269 2013-05-05 11:32:40Z stefan $
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//
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// Authors: Carl Laird, Andreas Waechter IBM 2004-08-13
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#ifndef __IPNLPSCALING_HPP__
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#define __IPNLPSCALING_HPP__
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#include "IpOptionsList.hpp"
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#include "IpRegOptions.hpp"
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namespace Ipopt
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{
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// forward declarations
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class Vector;
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class VectorSpace;
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class Matrix;
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class MatrixSpace;
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class SymMatrix;
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class SymMatrixSpace;
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class ScaledMatrixSpace;
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class SymScaledMatrixSpace;
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/** This is the abstract base class for problem scaling.
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* It is repsonsible for determining the scaling factors
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* and mapping quantities in and out of scaled and unscaled
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* versions
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*/
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class NLPScalingObject : public ReferencedObject
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{
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public:
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/**@name Constructors/Destructors */
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//@{
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NLPScalingObject();
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/** Default destructor */
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virtual ~NLPScalingObject();
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//@}
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/** Method to initialize the options */
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bool Initialize(const Journalist& jnlst,
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const OptionsList& options,
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const std::string& prefix)
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{
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jnlst_ = &jnlst;
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return InitializeImpl(options, prefix);
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}
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/** Methods to map scaled and unscaled matrices */
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//@{
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/** Returns an obj-scaled version of the given scalar */
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virtual Number apply_obj_scaling(const Number& f)=0;
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/** Returns an obj-unscaled version of the given scalar */
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virtual Number unapply_obj_scaling(const Number& f)=0;
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/** Returns an x-scaled version of the given vector */
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virtual SmartPtr<Vector>
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apply_vector_scaling_x_NonConst(const SmartPtr<const Vector>& v)=0;
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/** Returns an x-scaled version of the given vector */
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virtual SmartPtr<const Vector>
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apply_vector_scaling_x(const SmartPtr<const Vector>& v)=0;
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/** Returns an x-unscaled version of the given vector */
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virtual SmartPtr<Vector>
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unapply_vector_scaling_x_NonConst(const SmartPtr<const Vector>& v)=0;
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/** Returns an x-unscaled version of the given vector */
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virtual SmartPtr<const Vector>
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unapply_vector_scaling_x(const SmartPtr<const Vector>& v)=0;
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/** Returns an c-scaled version of the given vector */
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virtual SmartPtr<const Vector>
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apply_vector_scaling_c(const SmartPtr<const Vector>& v)=0;
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/** Returns an c-unscaled version of the given vector */
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virtual SmartPtr<const Vector>
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unapply_vector_scaling_c(const SmartPtr<const Vector>& v)=0;
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/** Returns an c-scaled version of the given vector */
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virtual SmartPtr<Vector>
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apply_vector_scaling_c_NonConst(const SmartPtr<const Vector>& v)=0;
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/** Returns an c-unscaled version of the given vector */
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virtual SmartPtr<Vector>
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unapply_vector_scaling_c_NonConst(const SmartPtr<const Vector>& v)=0;
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/** Returns an d-scaled version of the given vector */
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virtual SmartPtr<const Vector>
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apply_vector_scaling_d(const SmartPtr<const Vector>& v)=0;
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/** Returns an d-unscaled version of the given vector */
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virtual SmartPtr<const Vector>
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unapply_vector_scaling_d(const SmartPtr<const Vector>& v)=0;
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/** Returns an d-scaled version of the given vector */
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virtual SmartPtr<Vector>
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apply_vector_scaling_d_NonConst(const SmartPtr<const Vector>& v)=0;
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/** Returns an d-unscaled version of the given vector */
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virtual SmartPtr<Vector>
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unapply_vector_scaling_d_NonConst(const SmartPtr<const Vector>& v)=0;
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/** Returns a scaled version of the jacobian for c. If the
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* overloaded method does not make a new matrix, make sure to set
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* the matrix ptr passed in to NULL.
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*/
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virtual SmartPtr<const Matrix>
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apply_jac_c_scaling(SmartPtr<const Matrix> matrix)=0;
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/** Returns a scaled version of the jacobian for d If the
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* overloaded method does not create a new matrix, make sure to
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* set the matrix ptr passed in to NULL.
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*/
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virtual SmartPtr<const Matrix>
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apply_jac_d_scaling(SmartPtr<const Matrix> matrix)=0;
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/** Returns a scaled version of the hessian of the lagrangian If
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* the overloaded method does not create a new matrix, make sure
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* to set the matrix ptr passed in to NULL.
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*/
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virtual SmartPtr<const SymMatrix>
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apply_hessian_scaling(SmartPtr<const SymMatrix> matrix)=0;
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//@}
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/** Methods for scaling bounds - these wrap those above */
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//@{
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/** Returns an x-scaled vector in the x_L or x_U space */
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SmartPtr<Vector> apply_vector_scaling_x_LU_NonConst(
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const Matrix& Px_LU,
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const SmartPtr<const Vector>& lu,
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const VectorSpace& x_space);
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/** Returns an x-scaled vector in the x_L or x_U space */
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SmartPtr<const Vector> apply_vector_scaling_x_LU(
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const Matrix& Px_LU,
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const SmartPtr<const Vector>& lu,
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const VectorSpace& x_space);
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/** Returns an d-scaled vector in the d_L or d_U space */
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SmartPtr<Vector> apply_vector_scaling_d_LU_NonConst(
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const Matrix& Pd_LU,
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const SmartPtr<const Vector>& lu,
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const VectorSpace& d_space);
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/** Returns an d-scaled vector in the d_L or d_U space */
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SmartPtr<const Vector> apply_vector_scaling_d_LU(
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const Matrix& Pd_LU,
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const SmartPtr<const Vector>& lu,
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const VectorSpace& d_space);
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/** Returns an d-unscaled vector in the d_L or d_U space */
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SmartPtr<Vector> unapply_vector_scaling_d_LU_NonConst(
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const Matrix& Pd_LU,
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const SmartPtr<const Vector>& lu,
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const VectorSpace& d_space);
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/** Returns an d-unscaled vector in the d_L or d_U space */
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SmartPtr<const Vector> unapply_vector_scaling_d_LU(
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const Matrix& Pd_LU,
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const SmartPtr<const Vector>& lu,
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const VectorSpace& d_space);
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//@}
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/** Methods for scaling the gradient of the objective - wraps the
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* virtual methods above
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*/
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//@{
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/** Returns a grad_f scaled version (d_f * D_x^{-1}) of the given vector */
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virtual SmartPtr<Vector>
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apply_grad_obj_scaling_NonConst(const SmartPtr<const Vector>& v);
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/** Returns a grad_f scaled version (d_f * D_x^{-1}) of the given vector */
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virtual SmartPtr<const Vector>
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apply_grad_obj_scaling(const SmartPtr<const Vector>& v);
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/** Returns a grad_f unscaled version (d_f * D_x^{-1}) of the
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* given vector */
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virtual SmartPtr<Vector>
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unapply_grad_obj_scaling_NonConst(const SmartPtr<const Vector>& v);
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/** Returns a grad_f unscaled version (d_f * D_x^{-1}) of the
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* given vector */
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virtual SmartPtr<const Vector>
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unapply_grad_obj_scaling(const SmartPtr<const Vector>& v);
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//@}
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/** @name Methods for determining whether scaling for entities is
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* done */
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//@{
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/** Returns true if the primal x variables are scaled. */
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virtual bool have_x_scaling()=0;
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/** Returns true if the equality constraints are scaled. */
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virtual bool have_c_scaling()=0;
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/** Returns true if the inequality constraints are scaled. */
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virtual bool have_d_scaling()=0;
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//@}
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/** This method is called by the IpoptNLP's at a convenient time to
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* compute and/or read scaling factors
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*/
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virtual void DetermineScaling(const SmartPtr<const VectorSpace> x_space,
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const SmartPtr<const VectorSpace> c_space,
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const SmartPtr<const VectorSpace> d_space,
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const SmartPtr<const MatrixSpace> jac_c_space,
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const SmartPtr<const MatrixSpace> jac_d_space,
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const SmartPtr<const SymMatrixSpace> h_space,
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SmartPtr<const MatrixSpace>& new_jac_c_space,
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SmartPtr<const MatrixSpace>& new_jac_d_space,
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SmartPtr<const SymMatrixSpace>& new_h_space,
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const Matrix& Px_L, const Vector& x_L,
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const Matrix& Px_U, const Vector& x_U)=0;
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protected:
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/** Implementation of the initialization method that has to be
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* overloaded by for each derived class. */
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virtual bool InitializeImpl(const OptionsList& options,
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const std::string& prefix)=0;
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/** Accessor method for the journalist */
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const Journalist& Jnlst() const
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{
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return *jnlst_;
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}
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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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/** Copy Constructor */
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NLPScalingObject(const NLPScalingObject&);
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/** Overloaded Equals Operator */
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void operator=(const NLPScalingObject&);
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//@}
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SmartPtr<const Journalist> jnlst_;
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};
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/** This is a base class for many standard scaling
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* techniques. The overloaded classes only need to
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* provide the scaling parameters
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*/
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class StandardScalingBase : public NLPScalingObject
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{
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public:
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/**@name Constructors/Destructors */
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//@{
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StandardScalingBase();
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/** Default destructor */
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virtual ~StandardScalingBase();
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//@}
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/** Methods to map scaled and unscaled matrices */
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//@{
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/** Returns an obj-scaled version of the given scalar */
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virtual Number apply_obj_scaling(const Number& f);
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/** Returns an obj-unscaled version of the given scalar */
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virtual Number unapply_obj_scaling(const Number& f);
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/** Returns an x-scaled version of the given vector */
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virtual SmartPtr<Vector>
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apply_vector_scaling_x_NonConst(const SmartPtr<const Vector>& v);
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/** Returns an x-scaled version of the given vector */
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virtual SmartPtr<const Vector>
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apply_vector_scaling_x(const SmartPtr<const Vector>& v);
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/** Returns an x-unscaled version of the given vector */
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virtual SmartPtr<Vector>
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unapply_vector_scaling_x_NonConst(const SmartPtr<const Vector>& v);
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/** Returns an x-unscaled version of the given vector */
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virtual SmartPtr<const Vector>
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unapply_vector_scaling_x(const SmartPtr<const Vector>& v);
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/** Returns an c-scaled version of the given vector */
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virtual SmartPtr<const Vector>
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apply_vector_scaling_c(const SmartPtr<const Vector>& v);
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/** Returns an c-unscaled version of the given vector */
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virtual SmartPtr<const Vector>
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unapply_vector_scaling_c(const SmartPtr<const Vector>& v);
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/** Returns an c-scaled version of the given vector */
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virtual SmartPtr<Vector>
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apply_vector_scaling_c_NonConst(const SmartPtr<const Vector>& v);
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/** Returns an c-unscaled version of the given vector */
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virtual SmartPtr<Vector>
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unapply_vector_scaling_c_NonConst(const SmartPtr<const Vector>& v);
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/** Returns an d-scaled version of the given vector */
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virtual SmartPtr<const Vector>
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apply_vector_scaling_d(const SmartPtr<const Vector>& v);
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/** Returns an d-unscaled version of the given vector */
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virtual SmartPtr<const Vector>
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unapply_vector_scaling_d(const SmartPtr<const Vector>& v);
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/** Returns an d-scaled version of the given vector */
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virtual SmartPtr<Vector>
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apply_vector_scaling_d_NonConst(const SmartPtr<const Vector>& v);
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/** Returns an d-unscaled version of the given vector */
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virtual SmartPtr<Vector>
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unapply_vector_scaling_d_NonConst(const SmartPtr<const Vector>& v);
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/** Returns a scaled version of the jacobian for c. If the
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* overloaded method does not make a new matrix, make sure to set
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* the matrix ptr passed in to NULL.
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*/
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virtual SmartPtr<const Matrix>
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apply_jac_c_scaling(SmartPtr<const Matrix> matrix);
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/** Returns a scaled version of the jacobian for d If the
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* overloaded method does not create a new matrix, make sure to
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* set the matrix ptr passed in to NULL.
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*/
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virtual SmartPtr<const Matrix>
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apply_jac_d_scaling(SmartPtr<const Matrix> matrix);
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/** Returns a scaled version of the hessian of the lagrangian If
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* the overloaded method does not create a new matrix, make sure
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* to set the matrix ptr passed in to NULL.
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*/
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virtual SmartPtr<const SymMatrix>
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apply_hessian_scaling(SmartPtr<const SymMatrix> matrix);
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//@}
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/** @name Methods for determining whether scaling for entities is
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* done */
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//@{
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virtual bool have_x_scaling();
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virtual bool have_c_scaling();
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virtual bool have_d_scaling();
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//@}
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/** This method is called by the IpoptNLP's at a convenient time to
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* compute and/or read scaling factors
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*/
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virtual void DetermineScaling(const SmartPtr<const VectorSpace> x_space,
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const SmartPtr<const VectorSpace> c_space,
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const SmartPtr<const VectorSpace> d_space,
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const SmartPtr<const MatrixSpace> jac_c_space,
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const SmartPtr<const MatrixSpace> jac_d_space,
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const SmartPtr<const SymMatrixSpace> h_space,
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SmartPtr<const MatrixSpace>& new_jac_c_space,
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SmartPtr<const MatrixSpace>& new_jac_d_space,
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SmartPtr<const SymMatrixSpace>& new_h_space,
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const Matrix& Px_L, const Vector& x_L,
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const Matrix& Px_U, const Vector& x_U);
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/** Methods for IpoptType */
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//@{
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static void RegisterOptions(SmartPtr<RegisteredOptions> roptions);
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//@}
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protected:
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/** Overloaded initialization method */
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virtual bool InitializeImpl(const OptionsList& options,
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const std::string& prefix);
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/** This is the method that has to be overloaded by a particular
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* scaling method that somehow computes the scaling vectors dx,
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* dc, and dd. The pointers to those vectors can be NULL, in
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* which case no scaling for that item will be done later. */
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virtual void DetermineScalingParametersImpl(
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const SmartPtr<const VectorSpace> x_space,
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const SmartPtr<const VectorSpace> c_space,
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const SmartPtr<const VectorSpace> d_space,
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const SmartPtr<const MatrixSpace> jac_c_space,
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const SmartPtr<const MatrixSpace> jac_d_space,
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const SmartPtr<const SymMatrixSpace> h_space,
|
||
|
|
const Matrix& Px_L, const Vector& x_L,
|
||
|
|
const Matrix& Px_U, const Vector& x_U,
|
||
|
|
Number& df,
|
||
|
|
SmartPtr<Vector>& dx,
|
||
|
|
SmartPtr<Vector>& dc,
|
||
|
|
SmartPtr<Vector>& dd)=0;
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
/**@name Default Compiler Generated Methods
|
||
|
|
* (Hidden to avoid implicit creation/calling).
|
||
|
|
* These methods are not implemented and
|
||
|
|
* we do not want the compiler to implement
|
||
|
|
* them for us, so we declare them private
|
||
|
|
* and do not define them. This ensures that
|
||
|
|
* they will not be implicitly created/called. */
|
||
|
|
//@{
|
||
|
|
|
||
|
|
/** Copy Constructor */
|
||
|
|
StandardScalingBase(const StandardScalingBase&);
|
||
|
|
|
||
|
|
/** Overloaded Equals Operator */
|
||
|
|
void operator=(const StandardScalingBase&);
|
||
|
|
//@}
|
||
|
|
|
||
|
|
/** Scaling parameters - we only need to keep copies of
|
||
|
|
* the objective scaling and the x scaling - the others we can
|
||
|
|
* get from the scaled matrix spaces.
|
||
|
|
*/
|
||
|
|
//@{
|
||
|
|
/** objective scaling parameter */
|
||
|
|
Number df_;
|
||
|
|
/** x scaling */
|
||
|
|
SmartPtr<Vector> dx_;
|
||
|
|
//@}
|
||
|
|
|
||
|
|
/** Scaled Matrix Spaces */
|
||
|
|
//@{
|
||
|
|
/** Scaled jacobian of c space */
|
||
|
|
SmartPtr<ScaledMatrixSpace> scaled_jac_c_space_;
|
||
|
|
/** Scaled jacobian of d space */
|
||
|
|
SmartPtr<ScaledMatrixSpace> scaled_jac_d_space_;
|
||
|
|
/** Scaled hessian of lagrangian spacea */
|
||
|
|
SmartPtr<SymScaledMatrixSpace> scaled_h_space_;
|
||
|
|
//@}
|
||
|
|
|
||
|
|
/** @name Algorithmic parameters */
|
||
|
|
//@{
|
||
|
|
/** Additional scaling value for the objective function */
|
||
|
|
Number obj_scaling_factor_;
|
||
|
|
//@}
|
||
|
|
};
|
||
|
|
|
||
|
|
/** Class implementing the scaling object that doesn't to any scaling */
|
||
|
|
class NoNLPScalingObject : public StandardScalingBase
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/**@name Constructors/Destructors */
|
||
|
|
//@{
|
||
|
|
NoNLPScalingObject()
|
||
|
|
{}
|
||
|
|
|
||
|
|
/** Default destructor */
|
||
|
|
virtual ~NoNLPScalingObject()
|
||
|
|
{}
|
||
|
|
//@}
|
||
|
|
|
||
|
|
|
||
|
|
protected:
|
||
|
|
/** Overloaded from StandardScalingBase */
|
||
|
|
virtual void DetermineScalingParametersImpl(
|
||
|
|
const SmartPtr<const VectorSpace> x_space,
|
||
|
|
const SmartPtr<const VectorSpace> c_space,
|
||
|
|
const SmartPtr<const VectorSpace> d_space,
|
||
|
|
const SmartPtr<const MatrixSpace> jac_c_space,
|
||
|
|
const SmartPtr<const MatrixSpace> jac_d_space,
|
||
|
|
const SmartPtr<const SymMatrixSpace> h_space,
|
||
|
|
const Matrix& Px_L, const Vector& x_L,
|
||
|
|
const Matrix& Px_U, const Vector& x_U,
|
||
|
|
Number& df,
|
||
|
|
SmartPtr<Vector>& dx,
|
||
|
|
SmartPtr<Vector>& dc,
|
||
|
|
SmartPtr<Vector>& dd);
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
/**@name Default Compiler Generated Methods
|
||
|
|
* (Hidden to avoid implicit creation/calling).
|
||
|
|
* These methods are not implemented and
|
||
|
|
* we do not want the compiler to implement
|
||
|
|
* them for us, so we declare them private
|
||
|
|
* and do not define them. This ensures that
|
||
|
|
* they will not be implicitly created/called. */
|
||
|
|
//@{
|
||
|
|
|
||
|
|
/** Copy Constructor */
|
||
|
|
NoNLPScalingObject(const NoNLPScalingObject&);
|
||
|
|
|
||
|
|
/** Overloaded Equals Operator */
|
||
|
|
void operator=(const NoNLPScalingObject&);
|
||
|
|
//@}
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace Ipopt
|
||
|
|
|
||
|
|
#endif
|