Tpetra_TieBreak.hpp

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

 
#include "Tpetra_TieBreak_fwd.hpp"
#include "Teuchos_RCP.hpp"
#include <utility>
#include <vector>
 
namespace Tpetra {
namespace Details {

template <typename LocalOrdinal, typename GlobalOrdinal>
class TieBreak {
 public:
  struct Triplet {
    LocalOrdinal LID;
    GlobalOrdinal GID;
    int PID;
  };

  virtual bool mayHaveSideEffects() const {
    return true;
  }

  virtual ~TieBreak() = default;

  virtual std::size_t
  selectedIndex(GlobalOrdinal GID,
                const std::vector<std::pair<int, LocalOrdinal> >& pid_and_lid) const = 0;
};
 
}  // namespace Details
}  // namespace Tpetra
 
#endif  // TPETRA_DETAILS_TIEBREAK_HPP