EpetraExt_SolverMap_LinearProblem.cpp

Go to the documentation of this file.
00001 // @HEADER
00002 // ***********************************************************************
00003 // 
00004 //     EpetraExt: Epetra Extended - Linear Algebra Services Package
00005 //                 Copyright (2001) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #include <EpetraExt_SolverMap_LinearProblem.h>
00030 
00031 #include <Epetra_LinearProblem.h>
00032 #include <Epetra_CrsMatrix.h>
00033 #include <Epetra_Map.h>
00034 
00035 class Epetra_MultiVector;
00036 
00037 namespace EpetraExt {
00038 
00039 LinearProblem_SolverMap::
00040 ~LinearProblem_SolverMap()
00041 {
00042   if( newObj_ && newObj_ != origObj_ ) delete newObj_;
00043 }
00044 
00045 LinearProblem_SolverMap::NewTypeRef
00046 LinearProblem_SolverMap::
00047 operator()( OriginalTypeRef orig )
00048 {
00049   origObj_ = &orig;
00050 
00051   Epetra_CrsMatrix * OldMatrix = dynamic_cast<Epetra_CrsMatrix*>( orig.GetMatrix() );
00052   Epetra_MultiVector * OldRHS = orig.GetRHS();
00053   Epetra_MultiVector * OldLHS = orig.GetLHS();
00054 
00055   Epetra_CrsMatrix & NewMatrix = SolverMapTrans_( *OldMatrix );
00056 
00057   if( &NewMatrix == OldMatrix ) //same matrix so use same problem
00058     newObj_ = origObj_;
00059   else
00060     newObj_ = new Epetra_LinearProblem( &NewMatrix, OldLHS, OldRHS );
00061 
00062   return *newObj_;
00063 }
00064 
00065 } //namespace EpetraExt
00066 

Generated on Thu Sep 18 12:31:44 2008 for EpetraExt by doxygen 1.3.9.1