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 /*@@
   @file      pughInterpGH.h
   @date      Sun Jul 04 1999
   @author    Thomas Radke
   @desc
              Definition of GH extensions of thorn PUGHInterp and
              declaration of function prototypes
   @enddesc
   @history
   @endhistory
@@*/


typedef struct
{
  int *send_count;             /* number of elements to be sent */
  int *send_displ;             /* offset of each element to be sent */
  int *recv_count;             /* number of elements to be received */
  int *recv_displ;             /* offset of each element to be received */

  CCTK_INT *num_points_to;     /* number of coordinate points to be sent */
  CCTK_INT *num_points_from;   /* number of coordinate points to be received */

  int *whichproc;              /* which processor does point i belong to */
  int *indices;                /* indices to sort from processor-sorted into
                                  point-sorted order */
} pughInterpGH;


/* prototypes of interpolation operators to be registered */
int PUGHInterp_InterpGV (cGH *GH,
                         int order,
                         const char *coord_system,
                         int num_points,
                         int num_in_array_indices,
                         int num_out_arrays,
                         const void *const interp_coord_arrays[],
                         const int interp_coord_array_types[],
                         const int in_array_indices[],
                         void *const out_arrays[],
                         const int out_array_types[]);

/* prototypes of routines used internally */
int PUGHInterp_Interpolate (int order,
                            int num_points,
                            int num_dims,
                            int num_arrays,
                            const int dims[ /* num_dims */ ],
                            const CCTK_REAL coord[ /* num_dims*num_points */ ],
                            const CCTK_REAL origin[ /* num_dims */ ],
                            const CCTK_REAL delta[ /* num_dims */ ],
                            const int in_types[ /* num_arrays */ ],
                            const void *const in_arrays[ /* num_arrays */ ],
                            const int out_types[ /* num_arrays */ ],
                            void *const out_arrays[ /* num_arrays */ ]);