extern "C"
{
	void yebisu_g6_open (const int gpid);
	void yebisu_g6_close(const int gpid);
	void yebisu_g6_set_ip(
			const int    gpid,
			const int    ni,
			const double pos[][3],
			const double vel[][3],
			const double eps2[],
			const double h2  [],
			const int    id  []);
	void yebisu_g6_push_jp(
			const int    gpid,
			const double pos [3],
			const double vel [3],
			const double acc2[3],
			const double jrk6[6],
			const double mass,
			const double tj,
			const int    id,
			const int    addr);
	void yebisu_g6_transfer_jp(const int gpid);
	void yebisu_g6_set_ti(
			const int    gpid,
			const double ti);
	void yebisu_g6_predict_all(
			const int gpid,
			const int nj);
	void yebisu_g6_launch_gravity(
			const int gpid,
			const int ni,
			const int nj,
			const int with_neib);
	void yebisu_g6_get_force(
			const int    gpid,
			const int    ni,
			      double acc   [][3],
			      double jrk   [][3],
			      double pot   [],
			      int    nnb_id[]);
	void yebisu_g6_receive_neighbor_list(const int gpid);
	void yebisu_g6_get_neighbor_list(
			const int gpid,
			const int ipipe,
			const int maxlen,
			      int *num_neib,
			      int list[]);

	void yebisu_g6_DEBUG_read_pred(
			const int    gpid,
			const int    nj,
			const int    addr,
			      double pos [3],
			      double vel [3],
			      double mass[1],
			      int    id  [1]);
	int yebisu_g6_get_nimax();
	int yebisu_g6_get_njmax();
}