Amesos2 - Direct Sparse Solver Interfaces: Amesos2_TpetraCrsMatrix_MatrixAdapter

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00043 
00044 
00045 #ifndef AMESOS2_TPETRACRSMATRIX_MATRIXADAPTER_DEF_HPP
00046 #define AMESOS2_TPETRACRSMATRIX_MATRIXADAPTER_DEF_HPP
00047 
00048 #include "Amesos2_TpetraCrsMatrix_MatrixAdapter_decl.hpp"
00049 #include "Amesos2_TpetraRowMatrix_AbstractMatrixAdapter_def.hpp"
00050 #include "Amesos2_MatrixAdapter_def.hpp"
00051 
00052 namespace Amesos2 {
00053 
00054   template <typename Scalar,
00055             typename LocalOrdinal,
00056             typename GlobalOrdinal,
00057             typename Node>
00058   ConcreteMatrixAdapter<
00059     Tpetra::CrsMatrix<Scalar,
00060                       LocalOrdinal,
00061                       GlobalOrdinal,
00062                       Node>
00063     >::ConcreteMatrixAdapter(Teuchos::RCP<matrix_t> m)
00064       : AbstractConcreteMatrixAdapter<Tpetra::RowMatrix<Scalar,
00065                                                         LocalOrdinal,
00066                                                         GlobalOrdinal,
00067                                                         Node>,
00068                                       Tpetra::CrsMatrix<Scalar,
00069                                                         LocalOrdinal,
00070                                                         GlobalOrdinal,
00071                                                         Node> >(m) // with implicit cast
00072     {}
00073 
00074   template <typename Scalar,
00075             typename LocalOrdinal,
00076             typename GlobalOrdinal,
00077             typename Node>
00078   Teuchos::RCP<const MatrixAdapter<Tpetra::CrsMatrix<Scalar,LocalOrdinal,GlobalOrdinal,Node> > >
00079   ConcreteMatrixAdapter<
00080     Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node>
00081     >::get_impl(const Teuchos::Ptr<const Tpetra::Map<local_ordinal_t,global_ordinal_t,node_t> > map) const
00082     {
00083       using Teuchos::RCP;
00084       using Teuchos::rcp;
00085       using Teuchos::rcpFromPtr;
00086       typedef Tpetra::Import<local_ordinal_t, global_ordinal_t, node_t> import_t;
00087 
00088       RCP<matrix_t> t_mat;
00089       t_mat = rcp (new matrix_t (rcpFromPtr (map), this->getMaxRowNNZ()));
00090 
00091       RCP<import_t> importer =
00092         rcp (new import_t (this->getRowMap(), rcpFromPtr (map)));
00093 
00094       // mfh 27 Mar 2012: INSERT is correct in this case, because
00095       // we're Importing into an empty matrix with a dynamic graph.
00096       t_mat->doImport (*(this->mat_), *importer, Tpetra::INSERT);
00097 
00098       return rcp (new ConcreteMatrixAdapter<matrix_t> (t_mat));
00099     }
00100 
00101 } // end namespace Amesos2
00102 
00103 #endif  // AMESOS2_TPETRACRSMATRIX_MATRIXADAPTER_DEF_HPP