Tpetra_RowGraph_decl.hpp

// @HEADER
// *****************************************************************************
//          Tpetra: Templated Linear Algebra Services Package
//
// Copyright 2008 NTESS and the Tpetra contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef TPETRA_ROWGRAPH_DECL_HPP
#define TPETRA_ROWGRAPH_DECL_HPP

#include "Tpetra_RowGraph_fwd.hpp"
#include "Tpetra_Map.hpp"
#include "Tpetra_Import.hpp"
#include "Tpetra_Export.hpp"
#include "Tpetra_Packable.hpp"
#include "Teuchos_Describable.hpp"

namespace Tpetra {

  template <class LocalOrdinal,
            class GlobalOrdinal,
            class Node>
  class RowGraph :
    virtual public Teuchos::Describable,
    public Packable<GlobalOrdinal, LocalOrdinal> {
  public:

    typedef LocalOrdinal local_ordinal_type;
    typedef GlobalOrdinal global_ordinal_type;
    typedef Node node_type;

    typedef typename
        Kokkos::View<LocalOrdinal *, typename Node::device_type>::const_type
        local_inds_device_view_type;
    typedef typename local_inds_device_view_type::HostMirror::const_type
        local_inds_host_view_type;
    typedef typename local_inds_device_view_type::HostMirror
        nonconst_local_inds_host_view_type;


    typedef typename
        Kokkos::View<GlobalOrdinal *, typename Node::device_type>::const_type
        global_inds_device_view_type;
    typedef typename global_inds_device_view_type::HostMirror::const_type
        global_inds_host_view_type;
    typedef typename global_inds_device_view_type::HostMirror
        nonconst_global_inds_host_view_type;

    typedef typename 
        Kokkos::View<const size_t*, typename Node::device_type>::const_type
        row_ptrs_device_view_type;
    typedef typename row_ptrs_device_view_type::HostMirror::const_type
        row_ptrs_host_view_type;

    virtual ~RowGraph() {};



    virtual Teuchos::RCP<const Teuchos::Comm<int> >
    getComm () const = 0;


    virtual Teuchos::RCP<const Map<LocalOrdinal,GlobalOrdinal,Node> >
    getRowMap () const = 0;

    virtual Teuchos::RCP<const Map<LocalOrdinal,GlobalOrdinal,Node> >
    getColMap () const = 0;

    virtual Teuchos::RCP<const Map<LocalOrdinal,GlobalOrdinal,Node> >
    getDomainMap () const = 0;

    virtual Teuchos::RCP<const Map<LocalOrdinal,GlobalOrdinal,Node> >
    getRangeMap () const = 0;

    virtual Teuchos::RCP<const Import<LocalOrdinal,GlobalOrdinal,Node> >
    getImporter () const = 0;

    virtual Teuchos::RCP<const Export<LocalOrdinal,GlobalOrdinal,Node> >
    getExporter () const = 0;

    virtual global_size_t getGlobalNumRows() const = 0;

    virtual global_size_t getGlobalNumCols() const = 0;

    virtual size_t getLocalNumRows() const = 0;

    virtual size_t getLocalNumCols() const = 0;

    virtual GlobalOrdinal getIndexBase() const = 0;

    virtual global_size_t getGlobalNumEntries() const = 0;

    virtual size_t getLocalNumEntries() const = 0;


    virtual size_t getNumEntriesInGlobalRow(GlobalOrdinal globalRow) const = 0;


    virtual size_t getNumEntriesInLocalRow(LocalOrdinal localRow) const = 0;

    virtual size_t getGlobalMaxNumRowEntries() const = 0;

    virtual size_t getLocalMaxNumRowEntries() const = 0;

    virtual bool hasColMap() const = 0;

    virtual bool isLocallyIndexed() const = 0;

    virtual bool isGloballyIndexed() const = 0;

    virtual bool isFillComplete() const = 0;





    virtual void
    getGlobalRowCopy (const GlobalOrdinal gblRow,
                      nonconst_global_inds_host_view_type& gblColInds,
                      size_t& numColInds) const = 0;

    virtual void
    getLocalRowCopy (const LocalOrdinal lclRow,
                     nonconst_local_inds_host_view_type & lclColInds,
                     size_t& numColInds) const = 0;

    virtual bool supportsRowViews () const {
      return false;
    }

    virtual void
    getLocalRowView (const LocalOrdinal lclRow,
                     local_inds_host_view_type & lclColInds) const = 0;

    virtual void
    getGlobalRowView (const GlobalOrdinal gblRow,
                      global_inds_host_view_type& gblColInds) const = 0;



    virtual void
    pack (const Teuchos::ArrayView<const LocalOrdinal>& exportLIDs,
          Teuchos::Array<GlobalOrdinal>& exports,
          const Teuchos::ArrayView<size_t>& numPacketsPerLID,
          size_t& constantNumPackets) const;
  }; // class RowGraph
} // namespace Tpetra

#endif // TPETRA_ROWGRAPH_DECL_HPP