00001 // $Id: LOCA_StepSize_AbstractStrategy.H,v 1.6 2007/06/21 16:22:52 rhoope Exp $ 00002 // $Source: /space/CVS/Trilinos/packages/nox/src-loca/src/LOCA_StepSize_AbstractStrategy.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-loca/src/LOCA_StepSize_AbstractStrategy.H,v $ 00036 // $Author: rhoope $ 00037 // $Date: 2007/06/21 16:22:52 $ 00038 // $Revision: 1.6 $ 00039 // ************************************************************************ 00040 //@HEADER 00041 00042 #ifndef LOCA_STEPSIZE_ABSTRACTSTRATEGY_H 00043 #define LOCA_STEPSIZE_ABSTRACTSTRATEGY_H 00044 00045 #include "NOX_Abstract_Group.H" // for ReturnType 00046 #include "LOCA_Abstract_Iterator.H" // for StepStatus 00047 00048 // Forward declarations 00049 namespace NOX { 00050 namespace Solver { 00051 class Generic; 00052 } 00053 } 00054 namespace LOCA { 00055 namespace MultiContinuation { 00056 class AbstractStrategy; 00057 class ExtendedVector; 00058 } 00059 class Stepper; 00060 } 00061 00062 namespace LOCA { 00063 00065 namespace StepSize { 00066 00068 00099 class AbstractStrategy { 00100 00101 public: 00102 00104 AbstractStrategy() {} 00105 00107 virtual ~AbstractStrategy() {} 00108 00110 00119 virtual NOX::Abstract::Group::ReturnType 00120 computeStepSize(LOCA::MultiContinuation::AbstractStrategy& curGroup, 00121 const LOCA::MultiContinuation::ExtendedVector& predictor, 00122 const NOX::Solver::Generic& solver, 00123 const LOCA::Abstract::Iterator::StepStatus& stepStatus, 00124 const LOCA::Stepper& stepper, 00125 double& stepSize) = 0; 00126 00128 virtual double getPrevStepSize() const = 0; 00129 00131 virtual double getStartStepSize() const = 0; 00132 00133 private: 00134 00136 AbstractStrategy(const AbstractStrategy&); 00137 00139 AbstractStrategy& operator = (const AbstractStrategy&); 00140 00141 }; // Class AbstractStrategy 00142 00143 } // Namespace StepSize 00144 00145 } // Namespace LOCA 00146 00147 #endif // LOCA_STEPSIZE_ABSTRACTSTRATEGY_H