#ifndef EP_INTERCOMM_HPP_INCLUDED
#define EP_INTERCOMM_HPP_INCLUDED

typedef std::pair< int, int > SIZE_RANK_INFO; // < rank, size>
typedef std::vector< std::pair<int, int> > RANK_MAP;  // at(ep_rank) = <ep_rank_local, mpi_rank>
typedef std::map<int, std::pair<int, int> > EP_RANK_MAP;  // key(ep_rank) = <ep_rank_local, mpi_rank>
typedef std::map<int, std::pair< int, std::pair<int, int> > > INTERCOMM_RANK_MAP;

namespace ep_lib
{

  class ep_comm;

  class ep_intercomm
  {
    public:

    void *mpi_inter_comm;

    INTERCOMM_RANK_MAP *intercomm_rank_map;  // quadruple : ep_rank_in_local_comm, ep_rank_loc_in_newcomm, mpi_rank_in_new_comm, comm_label
                                             // of remote_comm
    
    EP_RANK_MAP *local_rank_map;             // = ep_rank_map of local_comm


    RANK_MAP *inter_rank_map;  
    RANK_MAP *loc_rank_map;
    RANK_MAP *remote_rank_map;


    SIZE_RANK_INFO size_rank_info[3];        // size_rank_info of newcomm


    int intercomm_tag;                       // newcomm_ep_rank_loc of ep with ep_rank_loc==0 
                                             // used in comm_dup_intercomm
    
  };


}



#endif // EP_INTERCOMM_HPP_INCLUDED