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       typename LocalMatOps >
00059   ConcreteMatrixAdapter<
00060     Tpetra::CrsMatrix<Scalar,
00061           LocalOrdinal,
00062           GlobalOrdinal,
00063           Node,
00064           LocalMatOps>
00065     >::ConcreteMatrixAdapter(Teuchos::RCP<matrix_t> m) 
00066       : AbstractConcreteMatrixAdapter<Tpetra::RowMatrix<Scalar,
00067               LocalOrdinal,
00068               GlobalOrdinal,
00069               Node>,
00070               Tpetra::CrsMatrix<Scalar,
00071               LocalOrdinal,
00072               GlobalOrdinal,
00073               Node,
00074               LocalMatOps> >(m) // with implicit cast
00075     {}
00076 
00077   template <typename Scalar,
00078       typename LocalOrdinal,
00079       typename GlobalOrdinal,
00080       typename Node,
00081       typename LocalMatOps >
00082   Teuchos::RCP<const MatrixAdapter<Tpetra::CrsMatrix<Scalar,LocalOrdinal,GlobalOrdinal,Node,LocalMatOps> > >
00083   ConcreteMatrixAdapter<
00084     Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node, LocalMatOps>
00085     >::get_impl(const Teuchos::Ptr<const Tpetra::Map<local_ordinal_t,global_ordinal_t,node_t> > map) const
00086     {
00087       using Teuchos::RCP;
00088       using Teuchos::rcp;
00089       using Teuchos::rcpFromPtr;
00090       typedef Tpetra::Map<local_ordinal_t,global_ordinal_t,node_t> map_t;
00091       typedef Tpetra::Import<local_ordinal_t, global_ordinal_t, node_t> import_t;
00092 
00093       RCP<matrix_t> t_mat;
00094       t_mat = rcp (new matrix_t (rcpFromPtr (map), this->getMaxRowNNZ()));
00095       
00096       RCP<import_t> importer = 
00097   rcp (new import_t (this->getRowMap(), rcpFromPtr (map)));
00098       
00099       // mfh 27 Mar 2012: INSERT is correct in this case, because
00100       // we're Importing into an empty matrix with a dynamic graph.
00101       t_mat->doImport (*(this->mat_), *importer, Tpetra::INSERT);
00102       
00103       return rcp (new ConcreteMatrixAdapter<matrix_t> (t_mat));
00104     }
00105 
00106 } // end namespace Amesos2
00107 
00108 #endif  // AMESOS2_TPETRACRSMATRIX_MATRIXADAPTER_DEF_HPP