updated comm tiled to have multi

  int **size_reverse_recv;      // # of values to recv in each reverse swap/proc

  int **forward_recv_offset;  // forward comm offsets in buf_recv per swap/proc

  int **reverse_recv_offset;  // reverse comm offsets in buf_recv per swap/proc

  double **cutghostmulti;           // cutghost on a per-type basis

  int ***sendlist;              // list of atoms to send per swap/proc

  int **maxsendlist;            // max size of send list per swap/proc

  int **pbc_flag;               // general flag for sending atoms thru PBC

  int ***pbc;                   // dimension flags for PBC adjustments

  double ***sendbox;            // bounding box of atoms to send per swap/proc

  double ****sendbox_multi;     // bounding box of atoms to send per swap/proc for multi comm

  // exchange comm info, proc lists do not include self

  void grow_swap_send(int, int, int);  // grow swap arrays for send and recv

  void grow_swap_recv(int, int);

  void deallocate_swap(int);           // deallocate swap arrays

};

}