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/*@@
@header pGV.h
@date Wed Oct 13 01:14:02 CEST 1999
@author Gabrielle Allen
@desc
The Pugh Grid Variable structure. Based heavily on the former pGH.h and pGF.h
@enddesc
@version $Header$
@@*/
#ifndef _PGV_H_
#define _PGV_H_ 1
#ifdef __cplusplus
extern "C"
{
#endif
#define DATINDEX(GH,i,j,k) ((i) + GH->lnsize[0]*((j)+GH->lnsize[1]*(k)))
typedef enum {pgv_none, pgv_array, pgv_gf} pgv_type;
typedef struct PConnectivity
{
int dim;
int *nprocs;
int **neighbours;
int *perme; /* Is the system periodic? */
} pConnectivity;
typedef struct PGExtras
{
int dim; /* dimension of GA */
int *nsize; /* The global size of the array */
/* Processor group layouts */
double maxskew; /* Maximum point skew */
int **lb; /* Lower bound (nprocs X dim) for each proc */
int **ub; /* Upper bound (same sizes) */
int *bbox; /* Flags physical/processor boundaries */
/* [2*dir] */
int *lnsize; /* Size on this processor */
int npoints; /* LOCAL number of points on this proc. */
int *rnpoints; /* Number of points on each proc */
int **rnsize; /* [#points on a proc][in each dir] */
/* Copying ghostzones to/from comm buffers */
int *iterator; /* Iterator for copying ghostzones [dim] */
int *hyper_volume; /* Points per subcube dimension [dim] */
/* Ghosts and overlaps. */
int *nghostzones; /* Width of ghost zone */
int *ownership[2]; /* The box owned in each direction. */
/* [min/max][dir] */
int **ghosts[2]; /* The ghost zones on each face. */
/* [min/max][face][dir] */
int **overlap[2]; /* The overlap region owned on each face. */
/* [min/max][face][ijk] */
} pGExtras;
typedef struct PComm
{
/* buffer_sz[2*dim] */
int *buffer_sz; /* Size of the face ghost zones */
void **send_buffer; /* Storage for buffered Comm if */
void **recv_buffer; /* we don't use derived types */
int commflag; /* What is the comm flag set to? */
/* do_comm[2*dim] */
int *docomm; /* Do we do comm or not? */
int first_var; /* first variable to be synced */
int n_vars; /* number of variables to be synced */
int sync_timelevel; /* the timelevel to be synced */
#ifdef CCTK_MPI
MPI_Request *sreq, *rreq; /* Comm requests and statuses. */
MPI_Status *sstatus;
MPI_Datatype mpi_type; /* MPI datatype to use for communication */
#endif
} pComm;
typedef struct PGA
{
char *name; /* The name of the grid function */
int id; /* My ID number in my GH parent. */
int arrayid; /* My ID including timelevels */
void *padddata; /* Storage for the data. */
void *data; /* See the note above. */
int storage; /* Do we have storage or not? */
int npoints; /* Number of points (for memory statistics) */
void *parent; /* The GH to which I belong */
/* Note this is struct PGH which is
typedef'd to pGH in pGH.h, but
that is included AFTER this so we
need the full name for the lookahead
structure reference thingy.
*/
int varsize; /* The size of the data */
int vtype; /* The type of the data */
pGExtras *extras;
pConnectivity *connectivity;
pComm *comm; /* comm buffer for single variable */
pComm *groupcomm; /* comm buffer for a variable group */
int vector_size;
int vector_entry;
struct PGA *vector_base;
} pGA;
typedef struct PGV
{
pgv_type type;
pGA *array;
} pGV;
#ifdef __cplusplus
}
#endif
#endif
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