00001 // $Id: NOX_MeritFunction_SumOfSquares.H,v 1.4 2007/06/21 16:22:46 rhoope Exp $ 00002 // $Source: /space/CVS/Trilinos/packages/nox/src/NOX_MeritFunction_SumOfSquares.H,v $ 00003 00004 //@HEADER 00005 // ************************************************************************ 00006 // 00007 // NOX: An Object-Oriented Nonlinear Solver Package 00008 // Copyright (2002) Sandia Corporation 00009 // 00010 // LOCA: Library of Continuation Algorithms Package 00011 // Copyright (2005) Sandia Corporation 00012 // 00013 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive 00014 // license for use of this work by or on behalf of the U.S. Government. 00015 // 00016 // This library is free software; you can redistribute it and/or modify 00017 // it under the terms of the GNU Lesser General Public License as 00018 // published by the Free Software Foundation; either version 2.1 of the 00019 // License, or (at your option) any later version. 00020 // 00021 // This library is distributed in the hope that it will be useful, but 00022 // WITHOUT ANY WARRANTY; without even the implied warranty of 00023 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00024 // Lesser General Public License for more details. 00025 // 00026 // You should have received a copy of the GNU Lesser General Public 00027 // License along with this library; if not, write to the Free Software 00028 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00029 // USA 00030 // 00031 // Questions? Contact Roger Pawlowski (rppawlo@sandia.gov) or 00032 // Eric Phipps (etphipp@sandia.gov), Sandia National Laboratories. 00033 // ************************************************************************ 00034 // CVS Information 00035 // $Source: /space/CVS/Trilinos/packages/nox/src/NOX_MeritFunction_SumOfSquares.H,v $ 00036 // $Author: rhoope $ 00037 // $Date: 2007/06/21 16:22:46 $ 00038 // $Revision: 1.4 $ 00039 // ************************************************************************ 00040 //@HEADER 00041 00042 #ifndef NOX_MERITFUNCTION_SUMOFSQUARES_H 00043 #define NOX_MERITFUNCTION_SUMOFSQUARES_H 00044 00045 #include "NOX_Common.H" // for ostream 00046 #include "Teuchos_RCP.hpp" 00047 #include "NOX_Utils.H" 00048 #include "NOX_MeritFunction_Generic.H" 00049 #include "NOX_LineSearch_Utils_Slope.H" 00050 00051 namespace NOX { 00052 00053 namespace MeritFunction { 00054 00056 00072 class SumOfSquares : public virtual NOX::MeritFunction::Generic { 00073 00074 public: 00075 00077 SumOfSquares(const Teuchos::RCP<NOX::Utils>& u); 00078 00080 virtual ~SumOfSquares(); 00081 00083 virtual double computef(const NOX::Abstract::Group& grp) const; 00084 00086 virtual void computeGradient(const NOX::Abstract::Group& group, 00087 NOX::Abstract::Vector& result) const; 00088 00090 00094 virtual double computeSlope(const NOX::Abstract::Vector& dir, 00095 const NOX::Abstract::Group& grp) const; 00096 00098 00105 virtual double computeQuadraticModel(const NOX::Abstract::Vector& dir, 00106 const NOX::Abstract::Group& grp) const; 00107 00109 00115 virtual void computeQuadraticMinimizer(const NOX::Abstract::Group& grp, 00116 NOX::Abstract::Vector& result) const; 00117 00118 virtual const string& name() const; 00119 00120 private: 00121 00123 SumOfSquares() {}; 00124 00126 00155 virtual double 00156 computeSlopeWithoutJacobian(const NOX::Abstract::Vector& dir, 00157 const NOX::Abstract::Group& grp) const; 00158 00159 private: 00160 00162 Teuchos::RCP<Utils> utils; 00163 00165 mutable Teuchos::RCP<NOX::Abstract::Vector> tmpVecPtr; 00166 00168 00169 mutable Teuchos::RCP<NOX::Abstract::Group> tmpGrpPtr; 00170 00172 string meritFunctionName; 00173 00174 }; 00175 } // namespace MeritFunction 00176 } // namespace NOX 00177 00178 #endif