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#include <stdio.h>
#include <stdlib.h>
#include "cctk.h"
#include "CactusPUGH/PUGH/src/include/pugh.h"
#include "PUGHSlab.h"
static char *rcsid = "$Header$";
CCTK_FILEVERSION(CactusPUGH_PUGHSlab_CollectData1D_c)
/*#define DEBUGME 1*/
#define PICKUP_LINE_DATA(GH, cctk_type, vsize, start, directions, vdata, hdata)\
{ \
int i, dim, point [3]; \
cctk_type *typed_data = (cctk_type *) hdata; \
\
\
for (i = 0; i < vsize; i++) \
{ \
for (dim = 0; dim < 3; dim++) \
point [dim] = start [dim] + i*directions [dim]; \
*typed_data++ = ((cctk_type *) vdata) \
[CCTK_GFINDEX3D (GH, point [0], point [1], point [2])]; \
} \
}
/* local function prototypes */
int GetLocalLine(cGH *GH, pGExtras *extras,
int vardim, const int *S_l, const int *u_l, int ds, int len_l,
int *locstart, int *locend, int *nlocpoints);
#ifdef CCTK_MPI
static MPI_Datatype CCTKtoMPItype(pGH *pughGH, int cctktype);
#endif
static int CollectLocalData1D(cGH *GH, int vindex, int vtimelvl,
const int *origin, const int *directions,
int downsample, int length,
void **hdata, int *hsize)
{
int idim, ierr;
cGroup groupinfo;
int locstart [3], locend [3];
void *vdata = CCTK_VarDataPtrI (GH, vtimelvl, vindex);
pGExtras *extras = ((pGA *) PUGH_pGH (GH)->variables [vindex][vtimelvl])->extras;
CCTK_GroupData (CCTK_GroupIndexFromVarI (vindex), &groupinfo);
if (groupinfo.dim != 3)
{
CCTK_WARN (1, "CollectLocalData1D() processes 3D variables only");
return (-1);
}
ierr = GetLocalLine(GH, extras, 3, origin, directions, downsample, length,
locstart, locend, hsize);
if (ierr < 0)
{
CCTK_WARN (1, "GetLocalLine() failed");
return (ierr);
}
/* Transform from global to local index coordinate */
for(idim=0;idim<3;idim++)
{
locstart[idim]-=GH->cctk_lbnd[idim];
locend[idim] -=GH->cctk_lbnd[idim];
}
#ifdef DEBUGME
printf("CollectLocal1D: %d npoints lb: %d %d %d\n",
*hsize,GH->cctk_lbnd[0],GH->cctk_lbnd[1],GH->cctk_lbnd[2]);
#endif
*hdata= malloc (*hsize * CCTK_VarTypeSize (groupinfo.vartype));
/* CCTK_VARIABLE_INT */
switch (groupinfo.vartype)
{
case CCTK_VARIABLE_CHAR:
PICKUP_LINE_DATA(GH, CCTK_BYTE, *hsize, locstart, directions, vdata, *hdata);
break;
case CCTK_VARIABLE_INT:
PICKUP_LINE_DATA(GH, CCTK_INT, *hsize, locstart, directions, vdata, *hdata);
break;
case CCTK_VARIABLE_REAL:
PICKUP_LINE_DATA(GH, CCTK_REAL, *hsize, locstart, directions, vdata, *hdata);
break;
case CCTK_VARIABLE_COMPLEX:
PICKUP_LINE_DATA(GH, CCTK_COMPLEX, *hsize, locstart, directions, vdata, *hdata);
break;
default:
CCTK_WARN (1, "Unsupported variable type");
ierr = -1;
break;
}
return (ierr);
}
int Hyperslab_CollectData1D(cGH *GH, int vindex, int vtimelvl,
const int *origin, const int *directions,
int downsample, int length,
void **hdata, int *hsize, int proc)
{
void *loc_dptr;
int loc_dcount;
void *all_dptr;
int all_dcount=0;
int vtype, vtypesize;
int myproc,nprocs;
int ierr;
#ifdef CCTK_MPI
int iproc;
pGH *pughGH;
CCTK_INT tmp, *rem_dcount;
MPI_Datatype vmpitype;
int *recvcnts, *displs;
#endif
vtype = CCTK_VarTypeI(vindex);
vtypesize= CCTK_VarTypeSize(vtype);
myproc = CCTK_MyProc(GH);
nprocs = CCTK_nProcs(GH);
ierr = CollectLocalData1D(GH, vindex, vtimelvl,
origin, directions, downsample, length,
&loc_dptr, &loc_dcount);
if (ierr)
{
CCTK_WARN (1, "CollectLocalData1D() failed");
return (ierr);
}
#ifdef CCTK_MPI
pughGH = PUGH_pGH(GH);
rem_dcount = NULL;
recvcnts = NULL;
displs = NULL;
vmpitype= CCTKtoMPItype(pughGH, vtype);
/* Send local number of data elements */
tmp = (CCTK_INT) loc_dcount;
if (proc < 0 || proc == myproc)
{
rem_dcount= (CCTK_INT *) malloc (nprocs * sizeof (CCTK_INT));
recvcnts = (int *) malloc (nprocs * sizeof (int));
displs = (int *) malloc (nprocs * sizeof (int));
}
if (proc < 0)
{
CACTUS_MPI_ERROR (MPI_Allgather (&tmp, 1, PUGH_MPI_INT,
rem_dcount, 1, PUGH_MPI_INT,
pughGH->PUGH_COMM_WORLD));
} else {
CACTUS_MPI_ERROR (MPI_Gather (&tmp, 1, PUGH_MPI_INT,
rem_dcount, 1, PUGH_MPI_INT,
proc, pughGH->PUGH_COMM_WORLD));
}
if (proc < 0 || proc == myproc)
{
displs[0] = 0;
all_dcount = recvcnts[0] = (int) rem_dcount[0];
for (iproc=1;iproc<nprocs;iproc++)
{
recvcnts[iproc] = (int) rem_dcount[iproc];
displs[iproc] = displs[iproc-1] + recvcnts[iproc-1];
all_dcount += recvcnts[iproc];
}
#ifdef DEBUGME
printf (" local hsize: %d\n", loc_dcount);
for (iproc=0;iproc<nprocs;iproc++)
printf(" DISPLS[%d] rem: %d displs: %d all %d \n",
iproc, recvcnts[iproc],displs[iproc],all_dcount);
fflush(stdout);
#endif
all_dptr = malloc (all_dcount * vtypesize);
}
else
{
all_dptr = NULL;
}
if (proc < 0)
{
CACTUS_MPI_ERROR (MPI_Allgatherv(loc_dptr, loc_dcount, vmpitype,
all_dptr, recvcnts, displs, vmpitype,
pughGH->PUGH_COMM_WORLD));
} else {
CACTUS_MPI_ERROR (MPI_Gatherv(loc_dptr, loc_dcount, vmpitype,
all_dptr, recvcnts, displs, vmpitype,
proc, pughGH->PUGH_COMM_WORLD));
}
if (proc < 0 || proc == myproc)
{
free (rem_dcount);
free (recvcnts);
free (displs);
}
#else
all_dptr = loc_dptr;
all_dcount = loc_dcount;
#endif
/* assign return values */
if (proc < 0 || proc == myproc)
{
*hdata = all_dptr;
*hsize = all_dcount;
}
#ifdef DEBUGME
printf(" CollectData1D done \n");
#endif
return(0);
}
#ifdef CCTK_MPI
static MPI_Datatype CCTKtoMPItype(pGH *pughGH, int cctktype)
{
MPI_Datatype mpitype;
switch (cctktype) {
case CCTK_VARIABLE_CHAR:
mpitype = PUGH_MPI_CHAR;
break;
case CCTK_VARIABLE_INT:
mpitype = PUGH_MPI_INT;
break;
case CCTK_VARIABLE_REAL:
mpitype = PUGH_MPI_REAL;
break;
case CCTK_VARIABLE_COMPLEX:
mpitype = pughGH->PUGH_mpi_complex;
break;
default:
CCTK_WARN (1, "Unsupported MPI variable type");
mpitype = 0;
break;
}
return(mpitype);
}
#endif
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