EpetraExt Development
EpetraExt_Reindex_LinearProblem.cpp
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00004 //     EpetraExt: Epetra Extended - Linear Algebra Services Package
00005 //                 Copyright (2011) Sandia Corporation
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00041 
00042 #include <EpetraExt_Reindex_LinearProblem.h>
00043 
00044 #include <EpetraExt_Reindex_CrsMatrix.h>
00045 #include <EpetraExt_Reindex_MultiVector.h>
00046 
00047 #include <Epetra_LinearProblem.h>
00048 #include <Epetra_CrsMatrix.h>
00049 #include <Epetra_MultiVector.h>
00050 #include <Epetra_Map.h>
00051 
00052 namespace EpetraExt {
00053 
00054 LinearProblem_Reindex::
00055 ~LinearProblem_Reindex()
00056 {
00057   if( newObj_ ) delete newObj_;
00058 
00059   if( MatTrans_ ) delete MatTrans_;
00060   if( LHSTrans_ ) delete LHSTrans_;
00061   if( RHSTrans_ ) delete RHSTrans_;
00062 
00063   if( NewRowMapOwned_ ) delete NewRowMap_;
00064 }
00065 
00066 LinearProblem_Reindex::NewTypeRef
00067 LinearProblem_Reindex::
00068 operator()( OriginalTypeRef orig )
00069 {
00070   Epetra_CrsMatrix * OldMatrix = dynamic_cast<Epetra_CrsMatrix*>( orig.GetMatrix() );
00071   Epetra_MultiVector * OldRHS = orig.GetRHS();
00072   Epetra_MultiVector * OldLHS = orig.GetLHS();
00073   const Epetra_BlockMap & OldRowMap = OldMatrix->Map();
00074 
00075   //If new map not passed in create one with lex ordering
00076   if( !NewRowMap_ )
00077   {
00078     int NumMyElements = OldRowMap.NumMyElements();
00079     int NumGlobalElements = OldRowMap.NumGlobalElements();
00080 
00081     NewRowMap_ = new Epetra_Map( NumGlobalElements, NumMyElements, 0, OldRowMap.Comm() );
00082     NewRowMapOwned_ = true;
00083   }
00084 
00085   MatTrans_ = new CrsMatrix_Reindex( *NewRowMap_ );
00086   LHSTrans_ = new MultiVector_Reindex( *NewRowMap_ );
00087   RHSTrans_ = new MultiVector_Reindex( *NewRowMap_ );
00088 
00089   Epetra_CrsMatrix * NewMatrix = &((*MatTrans_)( *OldMatrix ));
00090   Epetra_MultiVector * NewLHS = &((*LHSTrans_)( *OldLHS ));
00091   Epetra_MultiVector * NewRHS = &((*RHSTrans_)( *OldRHS ));
00092 
00093   newObj_ = new Epetra_LinearProblem( NewMatrix, NewLHS, NewRHS );
00094 
00095   return *newObj_;
00096 }
00097 
00098 } //namespace EpetraExt
00099 
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