EpetraExt_Reindex_MultiVector.cpp

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// ***********************************************************************
// 
//     EpetraExt: Epetra Extended - Linear Algebra Services Package
//                 Copyright (2001) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
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// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
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// You should have received a copy of the GNU Lesser General Public
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#include <EpetraExt_Reindex_MultiVector.h>

#include <vector>

#include <Epetra_Map.h>
#include <Epetra_MultiVector.h>

namespace EpetraExt {

MultiVector_Reindex::
~MultiVector_Reindex()
{
  if( newObj_ ) delete newObj_;
}

MultiVector_Reindex::NewTypeRef
MultiVector_Reindex::
operator()( OriginalTypeRef orig )
{
  origObj_ = &orig;

  //test map, must have same number of local and global elements as original row map
  assert( orig.Map().NumMyElements() == NewRowMap_.NumMyElements() );

  vector<double*> MyValues(1);
  int MyLDA;
  int NumVectors = orig.NumVectors();
  orig.ExtractView( &MyValues[0], &MyLDA );

  Epetra_MultiVector * NewMV = new Epetra_MultiVector( View, NewRowMap_, MyValues[0], MyLDA, NumVectors );

  newObj_ = NewMV;

  return *NewMV;
}

} // namespace EpetraExt

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