Amesos2_MatrixTraits.hpp

// @HEADER
// *****************************************************************************
//           Amesos2: Templated Direct Sparse Solver Package
//
// Copyright 2011 NTESS and the Amesos2 contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER
 
 
#ifndef AMESOS2_MATRIXTRAITS_HPP
#define AMESOS2_MATRIXTRAITS_HPP
 
#include "Amesos2_config.h"
#include "Tpetra_CrsMatrix.hpp"
#include "Amesos2_Util.hpp"
 
namespace Amesos2 {
 
  // The declaration
  template <class Matrix>
  struct MatrixTraits {};
 
  /*******************
   * Specializations *
   *******************/
 
  template < typename Scalar,
             typename LocalOrdinal,
             typename GlobalOrdinal,
             typename Node >
  struct MatrixTraits<
    Tpetra::RowMatrix<Scalar,
                      LocalOrdinal,
                      GlobalOrdinal,
                      Node> > {
    typedef Scalar scalar_t;
    typedef LocalOrdinal local_ordinal_t;
    typedef GlobalOrdinal global_ordinal_t;
    typedef Node node_t;
 
    typedef Tpetra::RowMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node>  matrix_type;
    typedef typename matrix_type::impl_scalar_type                    impl_scalar_type;
 
    typedef typename matrix_type::nonconst_global_inds_host_view_type global_host_idx_type;
    typedef typename matrix_type::nonconst_values_host_view_type      global_host_val_type;
 
    typedef row_access major_access;
  };
 
  template < typename Scalar,
             typename LocalOrdinal,
             typename GlobalOrdinal,
             typename Node >
  struct MatrixTraits<
    Tpetra::CrsMatrix<Scalar,
                      LocalOrdinal,
                      GlobalOrdinal,
                      Node> > {
    typedef Scalar scalar_t;
    typedef LocalOrdinal local_ordinal_t;
    typedef GlobalOrdinal global_ordinal_t;
    typedef Node node_t;
 
    typedef Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node>  matrix_type;
    typedef typename matrix_type::impl_scalar_type                    impl_scalar_type;
 
    typedef typename matrix_type::nonconst_global_inds_host_view_type global_host_idx_type;
    typedef typename matrix_type::nonconst_values_host_view_type      global_host_val_type;
 
    typedef row_access major_access;
  };
 
  template < typename Scalar,
             typename LocalOrdinal,
             typename DeviceType >
  struct MatrixTraits<
    KokkosSparse::CrsMatrix<Scalar,
                      LocalOrdinal,
                      DeviceType> > {
    typedef Scalar scalar_t;
    typedef LocalOrdinal local_ordinal_t;
    typedef Tpetra::Map<>::global_ordinal_type global_ordinal_t;
    typedef LocalOrdinal global_size_t;
 
    typedef KokkosSparse::CrsMatrix<Scalar, LocalOrdinal, DeviceType>  matrix_type;
    typedef Scalar impl_scalar_type;
    typedef Tpetra::Map<>::node_type node_t;
 
    typedef typename matrix_type::host_mirror_type::index_type  global_host_idx_type;
    typedef typename matrix_type::host_mirror_type::values_type global_host_val_type;
 
    typedef row_access major_access;
  };
 
}
 
#endif  // AMESOS2_MATRIXTRAITS_HPP