00001 // $Id: NOX_StatusTest_Stagnation.H,v 1.8 2006/08/22 00:01:28 rppawlo Exp $ 00002 // $Source: /space/CVS/Trilinos/packages/nox/src/NOX_StatusTest_Stagnation.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_StatusTest_Stagnation.H,v $ 00036 // $Author: rppawlo $ 00037 // $Date: 2006/08/22 00:01:28 $ 00038 // $Revision: 1.8 $ 00039 // ************************************************************************ 00040 //@HEADER 00041 00042 #ifndef NOX_STATUS_STAGNATION_H 00043 #define NOX_STATUS_STAGNATION_H 00044 00045 #include "NOX_StatusTest_Generic.H" // base class 00046 00047 // Forward declarations 00048 namespace NOX { 00049 namespace Solver { 00050 class Generic; 00051 } 00052 } 00053 00054 namespace NOX { 00055 00056 namespace StatusTest { 00057 00059 00081 class Stagnation : public Generic { 00082 00083 public: 00084 00086 00090 Stagnation(int n = 50, double tol = 1.0); 00091 00093 virtual ~Stagnation(); 00094 00102 virtual NOX::StatusTest::StatusType 00103 checkStatus(const NOX::Solver::Generic& problem, 00104 NOX::StatusTest::CheckType checkType); 00105 00106 virtual NOX::StatusTest::StatusType getStatus() const; 00107 00108 virtual ostream& print(ostream& stream, int indent = 0) const; 00109 00115 virtual int getMaxNumSteps() const; 00116 00118 virtual int getCurrentNumSteps() const; 00119 00121 virtual double getTolerance() const; 00122 00124 virtual double getConvRate() const; 00125 00126 private: 00127 00129 int maxSteps; 00130 00132 int numSteps; 00133 00135 00138 int lastIteration; 00139 00141 double tolerance; 00142 00144 double convRate; 00145 00147 NOX::StatusTest::StatusType status; 00148 00149 00150 }; 00151 00152 } // namespace Status 00153 } // namespace NOX 00154 00155 #endif