Xpetra_Map_decl.hpp

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#ifndef XPETRA_MAP_DECL_HPP
#define XPETRA_MAP_DECL_HPP

#include "Xpetra_ConfigDefs.hpp"

#include <Kokkos_DefaultNode.hpp>
#include <Teuchos_Describable.hpp>

#ifdef HAVE_XPETRA_EPETRA
    #include "Epetra_config.h"
#endif

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

namespace Xpetra {

  // TODO move this typedef to another place
  // Node which is used for Epetra. This can be either the
  // Serial node or OpenMP node (but not both)
#ifdef HAVE_XPETRA_EPETRA
# ifdef EPETRA_HAVE_OMP
  typedef Kokkos::Compat::KokkosOpenMPWrapperNode EpetraNode;
# else
  typedef Kokkos::Compat::KokkosSerialWrapperNode EpetraNode;
# endif
#endif


  enum UnderlyingLib
  {
    UseEpetra,
    UseTpetra,
    NotSpecified
  };


  template <class LocalOrdinal,
            class GlobalOrdinal,
            class Node = KokkosClassic::DefaultNode::DefaultNodeType>
  class Map
    : public Teuchos::Describable
  {
  public:
    typedef LocalOrdinal local_ordinal_type;
    typedef GlobalOrdinal global_ordinal_type;
    typedef Node node_type;



    virtual ~Map();




    virtual global_size_t getGlobalNumElements() const = 0;

    virtual size_t getNodeNumElements() const = 0;

    virtual GlobalOrdinal getIndexBase() const = 0;

    virtual LocalOrdinal getMinLocalIndex() const = 0;

    virtual LocalOrdinal getMaxLocalIndex() const = 0;

    virtual GlobalOrdinal getMinGlobalIndex() const = 0;

    virtual GlobalOrdinal getMaxGlobalIndex() const = 0;

    virtual GlobalOrdinal getMinAllGlobalIndex() const = 0;

    virtual GlobalOrdinal getMaxAllGlobalIndex() const = 0;

    virtual LocalOrdinal getLocalElement(GlobalOrdinal globalIndex) const = 0;

    virtual GlobalOrdinal getGlobalElement(LocalOrdinal localIndex) const = 0;

    virtual LookupStatus getRemoteIndexList(const Teuchos::ArrayView< const GlobalOrdinal > &GIDList,
                                            const Teuchos::ArrayView< int > &nodeIDList,
                                            const Teuchos::ArrayView< LocalOrdinal > &LIDList) const = 0;

    virtual LookupStatus getRemoteIndexList(const Teuchos::ArrayView< const GlobalOrdinal > &GIDList,
                                            const Teuchos::ArrayView< int > &nodeIDList) const = 0;

    virtual Teuchos::ArrayView< const GlobalOrdinal > getNodeElementList() const = 0;




    virtual bool isNodeLocalElement(LocalOrdinal localIndex) const = 0;

    virtual bool isNodeGlobalElement(GlobalOrdinal globalIndex) const = 0;

    virtual bool isContiguous() const = 0;

    virtual bool isDistributed() const = 0;

    virtual bool isCompatible(const Map< LocalOrdinal, GlobalOrdinal, Node > &map) const = 0;

    virtual bool isSameAs(const Map< LocalOrdinal, GlobalOrdinal, Node > &map) const = 0;




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





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

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




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

    virtual RCP< const Map< LocalOrdinal, GlobalOrdinal, Node > >
        replaceCommWithSubset(const Teuchos::RCP< const Teuchos::Comm< int > > &newComm) const = 0;




    virtual UnderlyingLib lib() const = 0;

    // TODO: find a better solution for this hack
    // The problem is that EpetraMap, TpetraMap and StridedMap all inherit Map. To have proper toEpetra() we
    // need to understand the type of underlying matrix. But in src/Map we have no knowledge of StridedMaps, so
    // we cannot check for it by casting. This function allows us to avoid the restriction, as StridedMap redefines
    // it to return the base map.
    virtual RCP<const Xpetra::Map<LocalOrdinal, GlobalOrdinal, Node> > getMap() const;

#ifdef HAVE_XPETRA_KOKKOS_REFACTOR
#ifdef HAVE_XPETRA_TPETRA
    typedef typename Tpetra::Map<LocalOrdinal, GlobalOrdinal, Node>::local_map_type local_map_type;

    virtual local_map_type getLocalMap () const = 0;
#endif
#endif


  }; // Map class

} // Xpetra namespace

#define XPETRA_MAP_SHORT
#endif // XPETRA_MAP_DECL_HPP