Xpetra_CrsGraph.hpp

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#ifndef XPETRA_CRSGRAPH_HPP
#define XPETRA_CRSGRAPH_HPP

#include <Teuchos_ParameterList.hpp>

#include <Teuchos_Describable.hpp>
#include <Kokkos_DefaultNode.hpp>
#include "Xpetra_ConfigDefs.hpp"
#include "Xpetra_DistObject.hpp"
#include "Xpetra_Exceptions.hpp"

#include "Xpetra_Map.hpp"

#ifdef HAVE_XPETRA_KOKKOS_REFACTOR
#ifdef HAVE_XPETRA_TPETRA
#include <Kokkos_StaticCrsGraph.hpp>
#endif
#endif

namespace Xpetra {

  using Teuchos::ParameterList;

  struct RowInfo {
    size_t localRow;
    size_t allocSize;
    size_t numEntries;
    size_t offset1D;
  };

  enum ELocalGlobal {
    LocalIndices,
    GlobalIndices
  };

  template <class LocalOrdinal,
            class GlobalOrdinal,
            class Node = KokkosClassic::DefaultNode::DefaultNodeType>
  class CrsGraph
    : /*public RowGraph<>,*/ public DistObject<GlobalOrdinal,LocalOrdinal,GlobalOrdinal,Node>
  {
  public:
    typedef LocalOrdinal local_ordinal_type;
    typedef GlobalOrdinal global_ordinal_type;
    typedef Node node_type;



    virtual ~CrsGraph() { }




    virtual void insertGlobalIndices(GlobalOrdinal globalRow, const ArrayView< const GlobalOrdinal > &indices)= 0;

    virtual void insertLocalIndices(const LocalOrdinal localRow, const ArrayView< const LocalOrdinal > &indices)= 0;

    virtual void removeLocalIndices(LocalOrdinal localRow)= 0;




    virtual void fillComplete(const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &domainMap, const RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > > &rangeMap, const RCP< ParameterList > &params=null)= 0;

    virtual void fillComplete(const RCP< ParameterList > &params=null)= 0;




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

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

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

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

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

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

    virtual 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 getNodeNumRows() const = 0;

    virtual size_t getNodeNumCols() const = 0;

    virtual GlobalOrdinal getIndexBase() const = 0;

    virtual global_size_t getGlobalNumEntries() const = 0;

    virtual size_t getNodeNumEntries() const = 0;

    virtual size_t getNumEntriesInGlobalRow(GlobalOrdinal globalRow) const = 0;

    virtual size_t getNumEntriesInLocalRow(LocalOrdinal localRow) const = 0;

    virtual size_t getNumAllocatedEntriesInGlobalRow(GlobalOrdinal globalRow) const = 0;

    virtual size_t getNumAllocatedEntriesInLocalRow(LocalOrdinal localRow) const = 0;

    virtual size_t getGlobalMaxNumRowEntries() const = 0;

    virtual size_t getNodeMaxNumRowEntries() const = 0;

    virtual bool hasColMap() const = 0;

    virtual bool isLocallyIndexed() const = 0;

    virtual bool isGloballyIndexed() const = 0;

    virtual bool isFillComplete() const = 0;

    virtual bool isStorageOptimized() const = 0;

    virtual void getGlobalRowView(GlobalOrdinal GlobalRow, ArrayView< const GlobalOrdinal > &Indices) const = 0;

    virtual void getLocalRowView(LocalOrdinal LocalRow, ArrayView< const LocalOrdinal > &indices) const = 0;

    virtual void computeGlobalConstants() =0;



#ifdef HAVE_XPETRA_KOKKOS_REFACTOR
#ifdef HAVE_XPETRA_TPETRA
    typedef typename node_type::execution_space execution_space;
    typedef typename node_type::device_type device_type;
    typedef Kokkos::StaticCrsGraph<LocalOrdinal, Kokkos::LayoutLeft, device_type> local_graph_type;

    virtual local_graph_type getLocalGraph () const = 0;
#else
#ifdef __GNUC__
#warning "Xpetra Kokkos interface for CrsMatrix is enabled (HAVE_XPETRA_KOKKOS_REFACTOR) but Tpetra is disabled. The Kokkos interface needs Tpetra to be enabled, too."
#endif
#endif
#endif




    virtual std::string description() const = 0;

    virtual void describe(Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel=Teuchos::Describable::verbLevel_default) const = 0;


  }; // CrsGraph class

} // Xpetra namespace

#define XPETRA_CRSGRAPH_SHORT
#endif // XPETRA_CRSGRAPH_HPP