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/*@@
@file SetupGroup.c
@date Mon Feb 8 19:31:45 1999
@author Tom Goodale
@desc
Subroutines for setting up a group on a pGH.
@enddesc
@version $Id$
@@*/
#include <stdlib.h>
#include <string.h>
#include "pugh.h"
#include "pughi.h"
#include "cctk_Parameters.h"
static const char *rcsid = "$Header$";
CCTK_FILEVERSION (CactusPUGH_PUGH_SetupGroup_c);
/********************************************************************
******************** Internal Routines ************************
********************************************************************/
static int PUGH_SetupGAGroup (pGH *newGH,
int *nsize,
int *ghostsize,
int gtype,
int vtype,
int dim,
int n_variables,
int vectorlength,
int staggercode,
int n_timelevels);
/*@@
@routine PUGH_SetupGAGroup
@date January 19 2000
@author Gabrielle Allen
@desc
Set up a group of grid array variables on a pGH.
@enddesc
@calls CCTK_VarTypeSize
PUGH_SetupConnectivity
PUGH_SetupPGExtras
PUGH_SetupGArrayGroupComm
PUGH_SetupGArray
@var newGH
@vdesc Pointer to PUGH grid hierarchy
@vtype pGH *
@vio in
@endvar
@var nsize
@vdesc size dimensions for variables in this group
@vtype int *
@vio in
@endvar
@var ghostsize
@vdesc ghostsize dimensions for variables in this group
@vtype int *
@vio in
@endvar
@var gtype
@vdesc group type
@vtype int
@vio in
@endvar
@var vtype
@vdesc CCTK data type for variables in this group
@vtype int
@vio in
@endvar
@var dim
@vdesc number of dimensions for variables in this group
@vtype int
@vio in
@endvar
@var n_variables
@vdesc number of variables in this group
@vtype int
@vio in
@endvar
@var staggercode
@vdesc stagger code for variables in this group
@vtype int
@vio in
@endvar
@var n_timelevels
@vdesc number of timelevels in this group
@vtype int
@vio in
@endvar
@returntype int
@returndesc
PUGH_SUCCESS (0) if successful, or
PUGH_ERRORMEMORY (negative) if memory allocation failed
@endreturndesc
@@*/
static int PUGH_SetupGAGroup (pGH *newGH,
int *nsize,
int *ghostsize,
int gtype,
int vtype,
int dim,
int n_variables,
int vectorlength,
int staggercode,
int n_timelevels)
{
int i;
int variable;
int var_size;
int retval;
int level;
void ***temp;
pConnectivity *connectivity;
pGExtras *extras;
pComm *groupcomm;
int *perme;
int *nprocs;
retval = PUGH_SUCCESS;
var_size = CCTK_VarTypeSize (vtype);
if (gtype == CCTK_ARRAY || gtype == CCTK_SCALAR)
{
if (n_variables > 0)
{
/* Arrays can't (yet) have periodicity and manual setup,
so initialize them to zero */
perme = calloc (dim, sizeof (int));
nprocs = calloc (dim, sizeof (int));
if (dim && ! (perme && nprocs))
{
CCTK_WARN (0, "Memory allocation error in PUGH_SetupGAGroup");
}
PUGH_SetupDefaultTopology (dim, nprocs);
/* Check that there are enough grid points in this dimension
* to make parallelising it worthwhile
*/
for (i = 0 ; i < dim; i++)
{
if (abs (nsize[i]) > 0 && abs (nsize[i]) <= 2*ghostsize[i])
{
nprocs[i] = 1;
}
}
connectivity = PUGH_SetupConnectivity (dim, newGH->nprocs, nsize,
ghostsize, nprocs, perme);
extras = PUGH_SetupPGExtras (0, dim, perme, staggercode, nsize, ghostsize,
newGH->nprocs, connectivity->nprocs,
connectivity->neighbours, newGH->myproc);
free (nprocs);
free (perme);
}
else
{
connectivity = NULL;
extras = NULL;
}
}
else
{
/* this is for CCTK_GF variables */
if (dim <= 0)
CCTK_VWarn (0, __LINE__, __FILE__, "PUGH", "Dimension in function PUGH_SetupGAGroup is less than or equal to zero" );
connectivity = newGH->Connectivity[dim-1];
extras = newGH->GFExtras[dim-1];
}
/* Set up the communication buffer used for all variables within this group.
Note: only with allocated buffers we can have group communication. */
groupcomm = NULL;
if(n_variables > 0 && newGH->commmodel == PUGH_ALLOCATEDBUFFERS)
{
groupcomm = PUGH_SetupGArrayGroupComm (newGH,
dim,
newGH->nvariables,
n_variables,
vtype,
0,
extras);
}
temp = realloc (newGH->variables, (newGH->nvariables+n_variables) *
sizeof (void **));
if(newGH->nvariables+n_variables==0 || temp)
{
newGH->variables = temp;
for (variable = 0; variable < n_variables; variable++)
{
newGH->variables[newGH->nvariables] = malloc (n_timelevels *
sizeof (void *));
if (newGH->variables[newGH->nvariables])
{
for (level = 0; level < n_timelevels; level++)
{
newGH->variables[newGH->nvariables][level] =
PUGH_SetupGArray (newGH,
extras,
connectivity,
groupcomm,
CCTK_VarName (newGH->nvariables),
newGH->nvariables,
newGH->narrays,
var_size,
vtype,
staggercode,
vectorlength,
variable%vectorlength,
variable%vectorlength > 0 ? newGH->variables[newGH->nvariables - variable%vectorlength][level] : NULL);
newGH->narrays++;
}
newGH->nvariables++;
}
else
{
retval = PUGH_ERRORMEMORY;
break;
}
}
}
else
{
retval = PUGH_ERRORMEMORY;
}
if (retval)
{
CCTK_WARN (1, "Memory allocation error in PUGH_SetupGAGroup");
}
return (retval);
}
/*@@
@routine PUGH_SetupGroup
@date Mon Feb 8 19:37:55 1999
@author Tom Goodale
@desc
Sets up a group on a pGH
@enddesc
@calls PUGH_SetupGAGroup
@var newGH
@vdesc Pointer to PUGH grid hierarchy
@vtype pGH *
@vio in
@endvar
@var nsize
@vdesc size dimensions for variables in this group
@vtype int *
@vio in
@endvar
@var ghostsize
@vdesc ghostsize dimensions for variables in this group
@vtype int *
@vio in
@endvar
@var gtype
@vdesc group type
@vtype int
@vio in
@endvar
@var vtype
@vdesc CCTK data type for variables in this group
@vtype int
@vio in
@endvar
@var dim
@vdesc number of dimensions for variables in this group
@vtype int
@vio in
@endvar
@var n_variables
@vdesc number of variables in this group
@vtype int
@vio in
@endvar
@var staggercode
@vdesc stagger code for variables in this group
@vtype int
@vio in
@endvar
@var n_timelevels
@vdesc number of timelevels in this group
@vtype int
@vio in
@endvar
@var vectorgroup
@vdesc is this a vector group ?
@vtype int
@vio in
@endvar
@returntype int
@returndesc
return code of @seeroutine PUGH_SetupGAGroup, or
PUGH_ERROR if invalid group type was passed in
@endreturndesc
@@*/
int PUGH_SetupGroup (pGH *newGH,
int *nsize,
int *nghostsize,
int gtype,
int vtype,
int dim,
int n_variables,
int vectorlength,
int staggercode,
int n_timelevels,
int vectorgroup)
{
int retval;
(void) (vectorgroup + 0);
retval = PUGH_SetupGAGroup (newGH, nsize, nghostsize, gtype, vtype, dim,
n_variables, vectorlength, staggercode,
n_timelevels);
return (retval);
}
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