Teko Version of the Day
Teko_SolveInverseFactory.cpp
00001 /*
00002 // @HEADER
00003 // 
00004 // ***********************************************************************
00005 // 
00006 //      Teko: A package for block and physics based preconditioning
00007 //                  Copyright 2010 Sandia Corporation 
00008 //  
00009 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
00010 // the U.S. Government retains certain rights in this software.
00011 //  
00012 // Redistribution and use in source and binary forms, with or without
00013 // modification, are permitted provided that the following conditions are
00014 // met:
00015 //  
00016 // 1. Redistributions of source code must retain the above copyright
00017 // notice, this list of conditions and the following disclaimer.
00018 //  
00019 // 2. Redistributions in binary form must reproduce the above copyright
00020 // notice, this list of conditions and the following disclaimer in the
00021 // documentation and/or other materials provided with the distribution.
00022 //  
00023 // 3. Neither the name of the Corporation nor the names of the
00024 // contributors may be used to endorse or promote products derived from
00025 // this software without specific prior written permission. 
00026 //  
00027 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
00028 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00029 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00030 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
00031 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00032 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00033 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00034 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00035 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
00036 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00037 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 //  
00039 // Questions? Contact Eric C. Cyr (eccyr@sandia.gov)
00040 // 
00041 // ***********************************************************************
00042 // 
00043 // @HEADER
00044 
00045 */
00046 
00047 #include "Teko_SolveInverseFactory.hpp"
00048 
00049 // Thyra includes
00050 #include "Thyra_DefaultLinearOpSource.hpp"
00051 #include "Thyra_DefaultInverseLinearOp.hpp"
00052 #include "Thyra_DefaultPreconditioner.hpp"
00053 
00054 // Stratimikos includes
00055 #include "Stratimikos_DefaultLinearSolverBuilder.hpp"
00056 
00057 // Teko includes
00058 #include "Teko_Utilities.hpp"
00059 #include "Teko_BlockPreconditionerFactory.hpp"
00060 #include "Teko_Preconditioner.hpp"
00061 #include "Teko_PreconditionerLinearOp.hpp"
00062 
00063 using Teuchos::rcp;
00064 using Teuchos::rcp_const_cast;
00065 using Teuchos::rcp_dynamic_cast;
00066 using Teuchos::RCP;
00067 
00068 namespace Teko {
00069 
00079 SolveInverseFactory::SolveInverseFactory(const Teuchos::RCP<Thyra::LinearOpWithSolveFactoryBase<double> > & lowsFactory)
00080    : lowsFactory_(lowsFactory)
00081 { }
00082 
00084 SolveInverseFactory::SolveInverseFactory(const SolveInverseFactory & siFactory)
00085    : lowsFactory_(siFactory.lowsFactory_)
00086 { }
00087 
00097 InverseLinearOp SolveInverseFactory::buildInverse(const LinearOp & linearOp) const
00098 {
00099    Teko_DEBUG_SCOPE("SolveInverseFactory::buildInverse(linearOp)",10);
00100 
00101    // build and initialize inverse linear op with solve
00102    Teuchos::RCP<Thyra::LinearOpWithSolveBase<double> > invLOWS = lowsFactory_->createOp();
00103    lowsFactory_->initializeOp(Thyra::defaultLinearOpSource(linearOp),&*invLOWS,Thyra::SUPPORT_SOLVE_FORWARD_ONLY);
00104    
00105    return Thyra::nonconstInverse<double>(invLOWS);
00106 }
00107 
00120 InverseLinearOp SolveInverseFactory::buildInverse(const LinearOp & linearOp,const LinearOp & precOp) const
00121 { 
00122    Teko_DEBUG_SCOPE("SolveInverseFactory::buildInverse(linearOp,precOp)",10);
00123 
00124    // build and initialize inverse linear op with solve
00125    Teuchos::RCP<Thyra::LinearOpWithSolveBase<double> > invLOWS = lowsFactory_->createOp();
00126    lowsFactory_->initializePreconditionedOp(Thyra::defaultLinearOpSource(linearOp),
00127                                                   Thyra::unspecifiedPrec(precOp),
00128                                                   &*invLOWS,Thyra::SUPPORT_SOLVE_FORWARD_ONLY);
00129    
00130    return Thyra::nonconstInverse<double>(invLOWS);
00131 }
00132 
00144 void SolveInverseFactory::rebuildInverse(const LinearOp & source,InverseLinearOp & dest) const
00145 {
00146    RCP<Thyra::DefaultInverseLinearOp<double> > invDest = rcp_dynamic_cast<Thyra::DefaultInverseLinearOp<double> >(dest);
00147    RCP<Thyra::LinearOpWithSolveBase<double> > lows = invDest->getNonconstLows();
00148 
00149    // This stems from confusion of if the linear op with solve initializeAndResuseOp actually rebuilds
00150    // the precondtioner. It seems not to and thus we have a fairly substantial problem.
00151    // lowsFactory_->initializeAndReuseOp(Thyra::defaultLinearOpSource(source),&*lows);
00152    lowsFactory_->initializeOp(Thyra::defaultLinearOpSource(source),&*lows);
00153 }
00154 
00167 void SolveInverseFactory::rebuildInverse(const LinearOp & source,const LinearOp & precOp,InverseLinearOp & dest) const
00168 {
00169    RCP<Thyra::DefaultInverseLinearOp<double> > invDest = rcp_dynamic_cast<Thyra::DefaultInverseLinearOp<double> >(dest);
00170    RCP<Thyra::LinearOpWithSolveBase<double> > lows = invDest->getNonconstLows();
00171 
00172    // lowsFactory_->initializeAndReuseOp(Thyra::defaultLinearOpSource(source),&*lows);
00173    lowsFactory_->initializePreconditionedOp(Thyra::defaultLinearOpSource(source),
00174                                                   Thyra::unspecifiedPrec(precOp),
00175                                                   &*lows,Thyra::SUPPORT_SOLVE_FORWARD_ONLY);
00176 }
00177 
00186 Teuchos::RCP<const Teuchos::ParameterList> SolveInverseFactory::getParameterList() const
00187 { 
00188    return lowsFactory_->getParameterList(); 
00189 }
00190 
00191 } // end namespace Teko
 All Classes Files Functions Variables