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/*@@
@file ReductionCount.c
@date Thu Apr 3 11:54:53 1997
@author Thomas Radke
@desc
Defines the PUGH reduction operator "count" to get the number of
grid points of an arbitrary array.
@enddesc
@version $Id$
@@*/
#include <stdlib.h>
#include <string.h>
#include "local_reductions.h"
static const char *rcsid = "$Id$";
CCTK_FILEVERSION(CCTDevelopment_LocalReduce_ReductionCount_c);
/* local function prototypes */
static int ReductionCount (int num_dims,
const int from[/* dim */],
const int to[/* dim */],
int iterator[/* dim */],
const int points_per_dim[/* dim */],
int num_points,
int have_local_points,
int num_inarrays,
const int intypes[/* num_inarrays */],
const void *const inarrays[/* num_inarrays */],
int num_outvals,
CCTK_REAL outvals[/*num_inarrays*num_outvals*/]);
/*@@
@routine PUGH_ReductionCountArrays
@author Thomas Radke
@date 19 Aug 1999
@desc
Registered PUGH reduction routine for computing the counts
of a set of arrays.
The arrays are described by their dimensions and variable type.
For the number of output values only 1 is accepted.
Type casting of the result is provided by specifying the
requested output datatype. The intermediate reduction value
is always computed as a CCTK_REAL value internally.
@enddesc
@var GH
@vdesc Pointer to CCTK grid hierarchy
@vtype const cGH *
@vio in
@endvar
@var proc
@vdesc processor that should receive the result of operation
(negative value means all processors receive the result)
@vtype int
@vio in
@endvar
@var nDims
@vdesc number of dimensions of input arrays
@vtype int
@vio in
@endvar
@var dims
@vdesc dimensions of input arrays
@vtype const int *
@vio in
@endvar
@var nArrays
@vdesc number of input arrays
@vtype int
@vio in
@endvar
@var inarrays
@vdesc field of input arrays
@vtype const void *const
@vio in
@endvar
@var inType
@vdesc (common) variable type of input arrays
@vtype int
@vio in
@endvar
@var num_outvals
@vdesc number of values per output array
@vtype int
@vio in
@endvar
@var outvals
@vdesc pointer to buffer holding the output values
@vtype void *
@vio in
@endvar
@var outtype
@vdesc (common) variable type of output arrays
@vtype int
@vio in
@endvar
@@*/
int ReductionCountArrays (int N_dims, int operator_handle,
int param_table_handle, int N_input_arrays,
const CCTK_INT input_array_dims[],
const CCTK_INT input_array_type_codes[],
const void *const input_arrays[],
int M_output_numbers,
const CCTK_INT output_number_type_codes[],
void *const output_numbers[])
{
return (ReductionArrays (N_dims, operator_handle,
param_table_handle, N_input_arrays,
input_array_dims, input_array_type_codes,
input_arrays, M_output_numbers,
output_number_type_codes, output_numbers,
ReductionCount));
}
/*****************************************************************************/
/* local functions */
/*****************************************************************************/
/*@@
@routine ReductionCount
@date Aug 19 1999
@author Thomas Radke
@desc
Returns the number of grid points of a distributed array
@enddesc
@@*/
static int ReductionCount (int num_dims,
const int from[/* dim */],
const int to[/* dim */],
int iterator[/* dim */],
const int points_per_dim[/* dim */],
int num_points,
int have_local_points,
int num_inarrays,
const int intypes[/* num_inarrays */],
const void *const inarrays[/* num_inarrays */],
int num_outvals,
CCTK_REAL outvals[/*num_inarrays*num_outvals*/])
{
int i;
/* avoid compiler warnings about unused parameters */
(void) (num_dims + 0);
(void) (from + 0);
(void) (to + 0);
(void) (iterator + 0);
(void) (points_per_dim + 0);
(void) (have_local_points + 0);
(void) (intypes + 0);
(void) (inarrays + 0);
(void) (num_outvals + 0);
/* assign the return value */
for (i = 0; i < num_inarrays; i++)
{
outvals[i] = num_points;
}
return (0);
}
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