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Tpetra_TieBreak.hpp
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41 
42 #ifndef TPETRA_DETAILS_TIEBREAK_HPP
43 #define TPETRA_DETAILS_TIEBREAK_HPP
44 
47 
48 #include "Tpetra_TieBreak_fwd.hpp"
49 #include "Teuchos_RCP.hpp"
50 
51 namespace Tpetra {
52 namespace Details {
53 
67  template <typename LocalOrdinal, typename GlobalOrdinal>
68  class TieBreak {
69  public:
83  struct Triplet {
84  LocalOrdinal LID;
85  GlobalOrdinal GID;
86  int PID;
87  };
88 
98  virtual bool mayHaveSideEffects () const {
99  return true;
100  }
101 
103  virtual ~TieBreak () {}
104 
125  virtual std::size_t
126  selectedIndex (GlobalOrdinal GID,
127  const std::vector<std::pair<int, LocalOrdinal> >& pid_and_lid) const = 0;
128  };
129 
130 } // namespace Details
131 } // namespace Tpetra
132 
133 #endif // TPETRA_DETAILS_TIEBREAK_HPP
Interface for breaking ties in ownership.
Representation of a global index on a process.
virtual std::size_t selectedIndex(GlobalOrdinal GID, const std::vector< std::pair< int, LocalOrdinal > > &pid_and_lid) const =0
Break any ties in ownership of the given global index GID.
virtual ~TieBreak()
Virtual destructor (for memory safety of derived classes).
Forward declaration for Tpetra::TieBreak.
virtual bool mayHaveSideEffects() const
Whether selectedIndex() may have side effects.