edge_node_identifier.hpp

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/*
 * Copyright (c) 2013, Lawrence Livermore National Security, LLC.
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 * Written by Steven Feldman <feldman12@llnl.gov>.
 * LLNL-CODE-644630.
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#ifndef __HAVOQGT_IMP_EDGE_NODE_IDENTIFIER_HPP__
#define __HAVOQGT_IMP_EDGE_NODE_IDENTIFIER_HPP__

namespace havoqgt {
namespace mpi {

class local_source_id {
 public:
  explicit local_source_id(int p):m_mpi_size(p) {}
  template<typename T>
  T operator()(std::pair<T, T> i) const { return i.first / m_mpi_size; }
 private:
  uint64_t m_mpi_size;
};

class local_dest_id {
 public:
  explicit local_dest_id(int p):m_mpi_size(p) {}
  template<typename T>
  T operator()(std::pair<T, T> i) const { return i.second / m_mpi_size; }
 private:
  uint64_t m_mpi_size;
};

class get_local_id {
 public:
  explicit get_local_id(int p):m_mpi_size(p) {}
  template<typename T>
  T operator()(T i) const { return i / m_mpi_size; }
 private:
  uint64_t m_mpi_size;
};

class owner_source_id {
 public:
  explicit owner_source_id(int p):m_mpi_size(p) {}
  template<typename T>
  int operator()(std::pair<T, T> i) const { return i.first % m_mpi_size; }
 private:
  uint64_t m_mpi_size;
};

class owner_dest_id {
 public:
  explicit owner_dest_id(int p):m_mpi_size(p) {}
  template<typename T>
  int operator()(std::pair<T, T> i) const { return i.second % m_mpi_size; }
 private:
  uint64_t m_mpi_size;
};

class get_owner_id {
 public:
  explicit get_owner_id(int p):m_mpi_size(p) {}
  template<typename T>
  int operator()(T i) const { return i % m_mpi_size; }
 private:
  uint64_t m_mpi_size;
};

}  // namespace mpi
}  // namespace havoqgt

#endif  // __HAVOQGT_IMP_EDGE_NODE_IDENTIFIER_HPP__