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/*@@
@file ReductionSum.c
@date
@author Tom Goodale, Yaakoub Y El Khamra
@desc
Defines the reduction operator to get the average
of an arbitrary array.
@enddesc
@version $Id$
@@*/
#include <stdlib.h>
#include <string.h>
#include "local_reductions.h"
#include "Sum_Functions.h"
static const char *rcsid = "$Id$";
CCTK_FILEVERSION(CactusBase_LocalReduce_ReductionSum_c);
/* Define the reduction operations */
/* local function prototypes */
static int ReductionSum (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[]);
/*@@
@routine LocalReduce_Mean
@author Tom Goodale, Yaakoub Y El Khamra
@date
@desc
@enddesc
@history
@endhistory
@var N_dims
@vdesc number of dimensions in the *reduction*
@vtype int
@vio in
@endvar
@var operator_handle
@vdesc operator handle specificies the type of reduction we will perform
@vtype int
@vio in
@endvar
@var param_table_handle
@vdesc handle to "parameter table", a key-value table
@vtype int
@vio in
@endvar
@var N_input_arrays
@vdesc number of input arrays
@vtype int
@vio in
@endvar
@var input_array_dims
@vdesc array of input array dimensions (common to all input arrays)
@vtype const CCTK_INT
@vio in
@endvar
@var input_array_type_codes
@vdesc array of CCTK_VARIABLE_* codes giving data types of input arrays
@vtype const CCTK_INT
@vio in
@endvar
@var input_arrays
@vdesc array of pointers to input arrays
@vtype const void *const
@vio in
@endvar
@var M_output_numbers
@vdesc
@vtype int
@vio in
@endvar
@var output_number_type_codes
@vdesc array of CCTK_VARIABLE_* codes giving data types of output numbers
@vtype const CCTK_INT
@vio in
@endvar
@var output_numbers
@vdesc array[M_output_numbers] of pointers to output numbers[M_reduce_numbers]
@vtype void *const
@vio in
@endvar
@@*/
int LocalReduce_Sum (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 (LocalReduce_Reduce (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,
ReductionSum));
}
/*****************************************************************************/
/* local functions */
/*****************************************************************************/
/*@@
@routine ReductionSum
@date
@author Tom Goodale, Yaakoub Y El Khamra
@desc Returns the average of a distributed array with
'num_points' elements. Global reduction is done element-wise
(num_outvals == 1) or on the results of the local reductions.
@enddesc
@@*/
static int ReductionSum (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[])
{
/* utility variables */
int i, j, num_points;
int * iters_per_dim;
int global_calling = 0;
/* indices to hold the temp indices of size N_dims and iteration indices*/
int * indices;
int * actual_indices;
int * actual_iters_per_dim;
int max_iter = 0;
int max_index = 1;
/* data pointer offset and strides declared here */
CCTK_INT * input_array_offsets;
CCTK_INT * input_array_strides;
CCTK_INT * input_array_min_subscripts;
CCTK_INT * input_array_max_subscripts;
/* weight variables declared here */
int weight_on = 0; /* weight is by default off=0 */
void const * weight; /* pointer to the weight variable */
CCTK_REAL weight_sum;
/* prevent warnings for unused vars */
(void)(operator_handle + 0);
/* set the number of points */
num_points = 0;
/* allocate memory for iters_per_dim */
iters_per_dim = (int *)malloc(N_dims * sizeof(int));
/* allocate then initialize the values of the strides and subscripts */
indices = (int *)malloc (N_dims * sizeof(int));
actual_indices = (int *)malloc (N_dims * sizeof(int));
actual_iters_per_dim = (int *)malloc (N_dims * sizeof(int));
/* allocate then initialize the values of the strides and subscripts */
input_array_offsets = (CCTK_INT *)malloc (N_input_arrays * sizeof(CCTK_INT));
input_array_strides = (CCTK_INT *) malloc (N_dims * sizeof(CCTK_INT));
input_array_min_subscripts = (CCTK_INT *) malloc (N_dims * sizeof(CCTK_INT));
input_array_max_subscripts = (CCTK_INT *) malloc (N_dims * sizeof(CCTK_INT));
for (i = 0; i<N_input_arrays; i++)
{
input_array_offsets[i] = 0;
}
for (i = 0; i<N_dims; i++)
{
input_array_strides[i] = 1;
input_array_min_subscripts[i] = 0;
input_array_max_subscripts[i] = input_array_dims[i];
max_index *= input_array_max_subscripts[i];
}
/* for strides and subscripts get values from param table (it they exist) */
if ( Util_TableQueryNKeys(param_table_handle) != 0)
{
Util_TableGetGenericArray(param_table_handle, CCTK_VARIABLE_INT,
N_input_arrays, input_array_offsets, "input_array_offsets");
Util_TableGetGenericArray(param_table_handle, CCTK_VARIABLE_INT,
N_dims, input_array_strides, "input_array_strides");
Util_TableGetGenericArray(param_table_handle, CCTK_VARIABLE_INT,
N_dims, input_array_min_subscripts, "input_array_min_subscripts");
Util_TableGetGenericArray(param_table_handle, CCTK_VARIABLE_INT,
N_dims, input_array_max_subscripts, "input_array_max_subscripts");
}
/* for weights get values from param table (it they exist) */
if ( Util_TableQueryNKeys(param_table_handle) != 0)
{
/* Get the weight_on parameter and the weight_var_index parameter */
Util_TableGetInt(param_table_handle, &weight_on, "weight_on");
Util_TableGetPointerToConst(param_table_handle, &weight, "weight");
/* Need to add more checking here for size, storage */
}
/* reduction maps an array to a single value of the same type */
if (M_output_numbers != N_input_arrays)
{
CCTK_WARN (1, "Sum reduction returns a single value\n \
for each input array\n");
return (-1);
}
/* set the indices to their minimum values */
max_iter = 1;
for (j = 0; j <N_dims; j++)
{
indices [j] = 0;
actual_indices[j] = input_array_min_subscripts[j];
actual_iters_per_dim [j] = (int) (input_array_max_subscripts[j] -input_array_min_subscripts[j]);
iters_per_dim [j] = (int) ((input_array_max_subscripts[j] - input_array_min_subscripts[j])/input_array_strides[j]);
max_iter *= iters_per_dim [j];
}
#undef REDUCTION_OPERATION
#undef REDUCTION_INITIAL
#undef EXTRA_STEP
#define REDUCTION_OPERATION(Sum, scalar) Sum = Sum + scalar;
#define REDUCTION_INITIAL(num) num = 0;
#define EXTRA_STEP(a, b)
for (i = 0; i < N_input_arrays; i++)
{
/* Do the type matching */
switch (input_array_type_codes[i])
{
/* in values type switches*/
case CCTK_VARIABLE_BYTE:
num_points = LocalReduce_Sum_BYTE(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
case CCTK_VARIABLE_INT:
num_points = LocalReduce_Sum_INT(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#ifdef HAVE_CCTK_INT1
case CCTK_VARIABLE_INT1:
num_points = LocalReduce_Sum_INT1(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
#ifdef HAVE_CCTK_INT2
case CCTK_VARIABLE_INT2:
num_points = LocalReduce_Sum_INT2(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
#ifdef HAVE_CCTK_INT4
case CCTK_VARIABLE_INT4:
num_points = LocalReduce_Sum_INT4(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
#ifdef HAVE_CCTK_INT8
case CCTK_VARIABLE_INT8:
num_points = LocalReduce_Sum_INT8(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
case CCTK_VARIABLE_REAL:
num_points = LocalReduce_Sum_REAL(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#ifdef HAVE_CCTK_REAL4
case CCTK_VARIABLE_REAL4:
num_points = LocalReduce_Sum_REAL4(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
#ifdef HAVE_CCTK_REAL8
case CCTK_VARIABLE_REAL8:
num_points = LocalReduce_Sum_REAL8(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
#ifdef HAVE_CCTK_REAL16
case CCTK_VARIABLE_REAL16:
num_points = LocalReduce_Sum_REAL16(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
case CCTK_VARIABLE_COMPLEX:
num_points = LocalReduce_Sum_COMPLEX(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#ifdef HAVE_CCTK_COMPLEX8
case CCTK_VARIABLE_COMPLEX8:
num_points = LocalReduce_Sum_COMPLEX8(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
#ifdef HAVE_CCTK_COMPLEX16
case CCTK_VARIABLE_COMPLEX16:
num_points = LocalReduce_Sum_COMPLEX16(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
#ifdef HAVE_CCTK_COMPLEX32
case CCTK_VARIABLE_COMPLEX32:
num_points = LocalReduce_Sum_COMPLEX32(i, weight_on, weight, input_array_offsets, indices, max_iter, actual_indices, input_array_strides, input_array_min_subscripts, input_array_dims, num_points, actual_iters_per_dim, iters_per_dim, N_dims, input_arrays, output_number_type_codes, output_numbers, param_table_handle);
break;
#endif
}
}
/* Get the values of num_points and weight_sum */
Util_TableGetInt(param_table_handle, &num_points, "num_points");
Util_TableGetReal(param_table_handle, &weight_sum, "weight_sum");
num_points--;
/* store the number of points in the paramater table and perform division */
Util_TableGetInt(param_table_handle, &global_calling, "global_calling");
if ( global_calling != 0)
{
Util_TableSetInt(param_table_handle, num_points, "num_points");
Util_TableSetInt(param_table_handle, 3,"global_operation");
Util_TableSetInt(param_table_handle, 1,"perform_division");
}
/* free memory */
free (iters_per_dim);
free (indices);
free (actual_indices);
free (actual_iters_per_dim);
free (input_array_offsets);
free (input_array_strides);
free (input_array_min_subscripts);
free (input_array_max_subscripts);
return (0);
}
|
