FEI Version of the Day
fei_LinearSystem.cpp
00001 /*
00002 // @HEADER
00003 // ************************************************************************
00004 //             FEI: Finite Element Interface to Linear Solvers
00005 //                  Copyright (2005) Sandia Corporation.
00006 //
00007 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation, the
00008 // U.S. Government retains certain rights in this software.
00009 //
00010 // Redistribution and use in source and binary forms, with or without
00011 // modification, are permitted provided that the following conditions are
00012 // met:
00013 //
00014 // 1. Redistributions of source code must retain the above copyright
00015 // notice, this list of conditions and the following disclaimer.
00016 //
00017 // 2. Redistributions in binary form must reproduce the above copyright
00018 // notice, this list of conditions and the following disclaimer in the
00019 // documentation and/or other materials provided with the distribution.
00020 //
00021 // 3. Neither the name of the Corporation nor the names of the
00022 // contributors may be used to endorse or promote products derived from
00023 // this software without specific prior written permission.
00024 //
00025 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
00026 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00027 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00028 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
00029 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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00031 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00032 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00033 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00034 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00035 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00036 //
00037 // Questions? Contact Alan Williams (william@sandia.gov) 
00038 //
00039 // ************************************************************************
00040 // @HEADER
00041 */
00042 
00043 
00044 #include <fei_macros.hpp>
00045 
00046 #include <fei_MatrixGraph.hpp>
00047 #include <fei_LinearSystem.hpp>
00048 #include <snl_fei_LinearSystem_General.hpp>
00049 #include <snl_fei_Utils.hpp>
00050 
00051 //----------------------------------------------------------------------------
00052 fei::LinearSystem::LinearSystem(fei::SharedPtr<fei::MatrixGraph>& matrixGraph)
00053  : matrix_(),
00054    soln_(),
00055    rhs_(),
00056    matrixGraph_(matrixGraph),
00057    dbcManager_(NULL)
00058 {
00059 }
00060 
00061 //----------------------------------------------------------------------------
00062 fei::LinearSystem::~LinearSystem()
00063 {
00064   delete dbcManager_;
00065 
00066   for(unsigned i=0; i<attributeNames_.size(); ++i) {
00067     delete [] attributeNames_[i];
00068   }
00069 }
00070 
00071 //----------------------------------------------------------------------------
00072 fei::SharedPtr<fei::LinearSystem>
00073 fei::LinearSystem::Factory::createLinearSystem(fei::SharedPtr<fei::MatrixGraph>& matrixGraph)
00074 {
00075   fei::SharedPtr<fei::LinearSystem>
00076     linsys(new snl_fei::LinearSystem_General(matrixGraph));
00077 
00078   return(linsys);
00079 }
00080 
00081 //----------------------------------------------------------------------------
00082 void fei::LinearSystem::setMatrix(fei::SharedPtr<fei::Matrix>& matrix)
00083 {
00084   matrix_ = matrix;
00085 }
00086 
00087 //----------------------------------------------------------------------------
00088 int fei::LinearSystem::putAttribute(const char* name,
00089                                     void* attribute)
00090 {
00091   snl_fei::storeNamedAttribute(name, attribute,
00092                                attributeNames_, attributes_);
00093   return(0);
00094 }
00095 
00096 //----------------------------------------------------------------------------
00097 int fei::LinearSystem::getAttribute(const char* name,
00098                                     void*& attribute)
00099 {
00100   attribute = snl_fei::retrieveNamedAttribute(name, attributeNames_, attributes_);
00101   return(attribute==NULL ? -1 : 0);
00102 }
00103 
00104 //----------------------------------------------------------------------------
00105 int fei::LinearSystem::loadEssentialBCs(int numIDs,
00106                                  const int* IDs,
00107                                  int idType,
00108                                  int fieldID,
00109                                  int offsetIntoField,
00110                                  const double* prescribedValues)
00111 {
00112   if (dbcManager_ == NULL) {
00113     dbcManager_ = new fei::DirichletBCManager(matrixGraph_->getRowSpace());
00114   }
00115 
00116   try {
00117     dbcManager_->addBCRecords(numIDs, idType, fieldID, offsetIntoField,
00118                               IDs, prescribedValues);
00119   }
00120   catch(std::runtime_error& exc) {
00121     fei::console_out() << exc.what()<<FEI_ENDL;
00122     return(-1);
00123   }
00124 
00125   return(0);
00126 }
00127 
00128 //----------------------------------------------------------------------------
00129 int fei::LinearSystem::loadEssentialBCs(int numIDs,
00130                                  const int* IDs,
00131                                  int idType,
00132                                  int fieldID,
00133                                  const int* offsetsIntoField,
00134                                  const double* prescribedValues)
00135 {
00136   if (dbcManager_ == NULL) {
00137     dbcManager_ = new fei::DirichletBCManager(matrixGraph_->getRowSpace());
00138   }
00139 
00140   try {
00141     dbcManager_->addBCRecords(numIDs, idType, fieldID, IDs, offsetsIntoField,
00142                               prescribedValues);
00143   }
00144   catch(std::runtime_error& exc) {
00145     fei::console_out() << exc.what()<<FEI_ENDL;
00146     return(-1);
00147   }
00148 
00149   return(0);
00150 }
00151 
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