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|
/*@@
@file Reduction.c
@date
@author Gabrielle Allen
@desc
This file contains routines to deal with registering and
using functions providing reduction operations.
@enddesc
@@*/
/*#define DEBUG_REDUCTION*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>
#include <stdarg.h>
#include "cctk.h"
#include "cctk_Flesh.h"
#include "cctk_FortranString.h"
#include "cctk_Groups.h"
#include "StoreHandledData.h"
#include "cctk_Reduction.h"
#include "cctk_WarnLevel.h"
static char *rcsid = "$Header$";
static cHandledData *ReductionOperators = NULL;
static int num_reductions = 0;
static cHandledData *ReductionArrayOperators = NULL;
static int num_reductions_array = 0;
/*@@
@routine CCTK_RegisterReductionOperator
@date April 28 1999
@author Gabrielle Allen
@desc
Registers "function" as a reduction operator called "name"
@enddesc
@var function
@vdesc Routine containing reduction operator
@vtype (void (*))
@vio
@vcomment
@endvar
@var name
@vdesc String containing name of reduction operator
@vtype const char *
@vio in
@vcomment
@endvar
@@*/
int CCTK_RegisterReductionOperator(
void (*function)(REDUCTION_OPERATOR_REGISTER_ARGLIST),
const char *name)
{
int handle;
/* Check that the method hasn't already been registered */
handle = Util_GetHandle(ReductionOperators, name, NULL);
if(handle < 0)
{
/* Get a handle for it. */
handle = Util_NewHandle(&ReductionOperators, name, (void *)function);
/* Remember how many reduction operators there are */
num_reductions++;
}
else
{
/* Reduction operator with this name already exists. */
CCTK_WARN(1,"Reduction operator with this name already exists");
handle = -1;
}
#ifdef DEBUG_REDUCTION
CCTK_PRINTSEPARATOR
printf("In CCTK_RegisterReductionOperator\n");
printf("---------------------------------\n");
printf(" Registering %s with handle %d\n",name,handle);
CCTK_PRINTSEPARATOR
#endif
return handle;
}
/*@@
@routine CCTK_ReductionHandle
@date April 28 1999
@author Gabrielle Allen
@desc
Returns the handle of a given reduction operator
@enddesc
@var reduction
@vdesc String containing name of reduction operator
@vtype const char *
@vio in
@vcomment
@endvar
@@*/
int CCTK_ReductionHandle(const char *reduction)
{
int handle;
void **data=NULL; /* isn't used here */
handle = Util_GetHandle(ReductionOperators, reduction, data);
#ifdef DEBUG_REDUCTION
CCTK_PRINTSEPARATOR
printf("In CCTK_ReductionHandle\n");
printf("-----------------------\n");
printf(" Got handle %d for %s\n",handle,reduction);
CCTK_PRINTSEPARATOR
#endif
if (handle < 0)
CCTK_WARN(1,"No handle found for this reduction operator");
return handle;
}
void FMODIFIER FORTRAN_NAME(CCTK_ReductionHandle)(int *handle, ONE_FORTSTRING_ARG)
{
ONE_FORTSTRING_CREATE(reduction)
*handle = CCTK_ReductionHandle(reduction);
free(reduction);
}
/*@@
@routine CCTK_Reduce
@date April 28 1999
@author Gabrielle Allen
@desc
Generic routine for doing a reduction operation on a set of
Cactus variables.
@enddesc
@var GH
@vdesc pointer to the grid hierarchy
@vtype cGH *
@vio in
@endvar
@var proc
@vdesc processor that receives the result of the reduction operation
(a negative value means that all processors get the result)
@vtype int
@vio in
@endvar
@var operation_handle
@vdesc the handle specifying the reduction operator
@vtype int
@vio in
@endvar
@var num_out_vals
@vdesc number of elements in the reduction output
@vtype int
@vio in
@endvar
@var type_out_vals
@vdesc datatype of the output values
@vtype int
@vio in
@endvar
@var out_vals
@vdesc pointer to buffer holding the output values
@vtype void *
@vio in
@endvar
@var num_in_fields
@vdesc number of input fields passed in the variable argument list
@vtype int
@vio in
@endvar
@var <...>
@vdesc list of variables indices of input fields
@vtype int
@vio in
@endvar
@@*/
int CCTK_Reduce( cGH *GH,
int proc,
int operation_handle,
int num_out_vals,
int type_out_vals,
void *out_vals,
int num_in_fields,
... )
{
va_list indices;
int i;
int *in_fields = malloc(num_in_fields*sizeof(int));
void (*function)(REDUCTION_OPERATOR_REGISTER_ARGLIST)=NULL;
/* Get the pointer to the reduction operator */
if (operation_handle < 0)
CCTK_WARN(3,"Invalid handle passed to CCTK_Reduce");
else
{
function = (void (*)(REDUCTION_OPERATOR_REGISTER_ARGLIST))
Util_GetHandledData(ReductionOperators,operation_handle);
if (function)
{
/* Fill in the array of variable indices from the variable argument list */
va_start(indices, num_in_fields);
for (i=0; i<num_in_fields; i++)
in_fields[i] = va_arg(indices,int);
va_end(indices);
function(GH,proc,num_out_vals,type_out_vals,out_vals,num_in_fields,in_fields);
if (in_fields) free(in_fields);
}
else
CCTK_WARN(3,"Reduction operation is not registered and cannot be called");
}
return 1;
}
void FMODIFIER FORTRAN_NAME(CCTK_Reduce)(int *fortranreturn,
cGH *GH,
int *proc,
int *operation_handle,
int *num_out_vals,
int *type_out_vals,
void *out_vals,
int *num_in_fields,
... )
{
va_list indices;
int i;
int *in_fields = malloc(*num_in_fields*sizeof(int));
void (*function)(REDUCTION_OPERATOR_REGISTER_ARGLIST)=NULL;
/* Get the pointer to the reduction operator */
if (*operation_handle < 0)
CCTK_WARN(3,"Invalid handle passed to CCTK_Reduce");
else
{
function = (void (*)(REDUCTION_OPERATOR_REGISTER_ARGLIST))
Util_GetHandledData(ReductionOperators,*operation_handle);
if (function)
{
/* Fill in the array of variable indices from the variable argument list */
va_start(indices, num_in_fields);
for (i=0; i<*num_in_fields; i++)
in_fields[i] = *va_arg(indices,int *);
va_end(indices);
function(GH,*proc,*num_out_vals,*type_out_vals,out_vals,*num_in_fields,in_fields);
if (in_fields) free(in_fields);
}
else
CCTK_WARN(3,"Reduction operation is not registered and cannot be called");
}
*fortranreturn= 1;
}
/*@@
@routine CCTK_RegisterReductionArrayOperator
@date Aug 19 1999
@author Thomas Radke
@desc
Registers "function" as a array reduction operator called "name"
@enddesc
@var function
@vdesc Routine containing reduction operator
@vtype (void (*))
@vio
@vcomment
@endvar
@var name
@vdesc String containing name of reduction operator
@vtype const char *
@vio in
@vcomment
@endvar
@@*/
int CCTK_RegisterReductionArrayOperator
(void (*function)(REDUCTION_ARRAY_OPERATOR_REGISTER_ARGLIST),
const char *name)
{
int handle;
/* Check that the method hasn't already been registered */
handle = Util_GetHandle(ReductionArrayOperators, name, NULL);
if(handle < 0)
{
/* Get a handle for it. */
handle = Util_NewHandle(&ReductionArrayOperators, name, (void *)function);
/* Remember how many reduction operators there are */
num_reductions_array++;
}
else
{
/* Reduction operator with this name already exists. */
CCTK_WARN(1,"Array reduction operator with this name already exists");
handle = -1;
}
#ifdef DEBUG_REDUCTION
CCTK_PRINTSEPARATOR
printf("In CCTK_RegisterReductionArrayOperator\n");
printf("---------------------------------\n");
printf(" Registering %s with handle %d\n",name,handle);
CCTK_PRINTSEPARATOR
#endif
return handle;
}
/*@@
@routine CCTK_ReductionArrayHandle
@date Aug 19 1999
@author Thomas Radke
@desc
Returns the handle of a given array reduction operator
@enddesc
@var reduction
@vdesc String containing name of array reduction operator
@vtype const char *
@vio in
@vcomment
@endvar
@@*/
int CCTK_ReductionArrayHandle(const char *reduction)
{
int handle;
void **data=NULL; /* isn't used here */
handle = Util_GetHandle(ReductionArrayOperators, reduction, data);
#ifdef DEBUG_REDUCTION
CCTK_PRINTSEPARATOR
printf("In CCTK_ReductionArrayHandle\n");
printf("-----------------------\n");
printf(" Got handle %d for %s\n",handle,reduction);
CCTK_PRINTSEPARATOR
#endif
if (handle < 0)
CCTK_WARN(1,"No handle found for this array reduction operator");
return handle;
}
void FMODIFIER FORTRAN_NAME(CCTK_ReductionArrayHandle)
(int *operation_handle, ONE_FORTSTRING_ARG)
{
ONE_FORTSTRING_CREATE(reduction)
*operation_handle = CCTK_ReductionArrayHandle(reduction);
free(reduction);
}
/*@@
@routine CCTK_ReduceArray
@date Aug 19 1999
@author Thomas Radke
@desc
Generic routine for doing a reduction operation on a set of
arrays.
@enddesc
@var GH
@vdesc pointer to the grid hierarchy
@vtype cGH *
@vio in
@endvar
@var proc
@vdesc processor that receives the result of the reduction operation
(a negative value means that all processors get the result)
@vtype int
@vio in
@endvar
@var operation_handle
@vdesc the handle specifying the reduction operator
@vtype int
@vio in
@endvar
@var num_out_vals
@vdesc number of elements in the reduction output
@vtype int
@vio in
@endvar
@var type_out_vals
@vdesc datatype of the reduction output
@vtype int
@vio in
@endvar
@var out_vals
@vdesc pointer to buffer holding the output values
@vtype void *
@vio in
@endvar
@var num_dims
@vdesc number of dimensions of input arrays
@vtype int
@vio in
@endvar
@var num_in_fields
@vdesc number of input fields passed in the variable argument list
@vtype int
@vio in
@endvar
@var type_in_arrays
@vdesc datatype of the input arrays
@vtype int
@vio in
@endvar
@var <...>
@vdesc list of dimensions of input arrays
@vtype int
@vio in
@endvar
@var <...>
@vdesc list of pointers to input arrays
@vtype void *
@vio in
@endvar
@@*/
int CCTK_ReduceArray( cGH *GH,
int proc,
int operation_handle,
int num_out_vals,
int type_out_vals,
void *out_vals,
int num_dims,
int num_in_arrays,
int type_in_arrays,
... )
{
va_list indices;
int i;
int *dims;
void **in_arrays;
void (*function)(REDUCTION_ARRAY_OPERATOR_REGISTER_ARGLIST)=NULL;
/* Get the pointer to the reduction operator */
if (operation_handle < 0)
{
CCTK_WARN(3,"Invalid handle passed to CCTK_ReduceArray");
return (1);
}
function = (void (*)(REDUCTION_ARRAY_OPERATOR_REGISTER_ARGLIST))
Util_GetHandledData(ReductionArrayOperators,operation_handle);
if (! function)
{
CCTK_WARN(3, "Array reduction operation is not registered "
"and cannot be called");
return (1);
}
/* allocate memory for dims and input array pointers */
dims = (int *) malloc (num_dims * sizeof (int));
in_arrays = (void **) malloc (num_in_arrays * sizeof (void *));
/* Fill in the arrays of dims and input array pointers
from the variable argument list */
va_start(indices, type_in_arrays);
for (i = 0; i < num_dims; i++)
dims [i] = va_arg (indices, int);
for (i = 0; i < num_in_arrays; i++)
in_arrays [i] = va_arg (indices, void *);
va_end(indices);
function (GH, proc, num_dims, dims, num_in_arrays, in_arrays, type_in_arrays,
num_out_vals, out_vals, type_out_vals);
free (in_arrays);
free (dims);
return 0;
}
void FMODIFIER FORTRAN_NAME(CCTK_ReduceArray)(int *fortran_return,
cGH *GH,
int *proc,
int *operation_handle,
int *num_out_vals,
int *type_out_vals,
void *out_vals,
int *num_dims,
int *num_in_arrays,
int *type_in_arrays,
... )
{
va_list varargs;
int i;
int *dims;
void **in_arrays;
void (*function)(REDUCTION_ARRAY_OPERATOR_REGISTER_ARGLIST)=NULL;
*fortran_return = 1;
/* Get the pointer to the reduction operator */
if (*operation_handle < 0)
{
CCTK_WARN (3,"Invalid handle passed to CCTK_ReduceArray");
return;
}
function = (void (*) (REDUCTION_ARRAY_OPERATOR_REGISTER_ARGLIST))
Util_GetHandledData (ReductionArrayOperators, *operation_handle);
if (! function)
{
CCTK_WARN (3, "Array reduction operation is not registered "
"and cannot be called");
return;
}
/* allocate memory for dims and input array pointers */
dims = (int *) malloc (*num_dims * sizeof (int));
in_arrays = (void **) malloc (*num_in_arrays * sizeof (void *));
/* Fill in the arrays of dims and input array pointers
from the variable argument list */
va_start (varargs, type_in_arrays);
for (i = 0; i < *num_dims; i++)
dims [i] = *va_arg (varargs, int *);
for (i = 0; i < *num_in_arrays; i++)
in_arrays [i] = va_arg (varargs, void *);
va_end (varargs);
function (GH, *proc, *num_dims, dims, *num_in_arrays, in_arrays,
*type_in_arrays, *num_out_vals, out_vals, *type_out_vals);
free (in_arrays);
free (dims);
*fortran_return = 0;
}
/*@@
@routine CCTK_ReduceLocalScalar
@date Aug 19 1999
@author Thomas Radke
@desc Wrapper function for reduction of a single scalar
@enddesc
@var GH
@vdesc pointer to the grid hierarchy
@vtype cGH *
@vio in
@endvar
@var proc
@vdesc processor that receives the result of the reduction operation
(a negative value means that all processors get the result)
@vtype int
@vio in
@endvar
@var operation_handle
@vdesc the handle specifying the reduction operator
@vtype int
@vio in
@endvar
void *in_scalar, void *out_scalar, int data_type)
@var in_scalar
@vdesc pointer to input scalar
@vtype void *
@vio in
@endvar
@var out_scalar
@vdesc pointer to output scalar
@vtype void *
@vio in
@endvar
@var data_type
@vdesc datatype for both input and output scalar
@vtype int
@vio in
@endvar
@@*/
int CCTK_ReduceLocalScalar (cGH *GH, int proc, int operation_handle,
void *in_scalar, void *out_scalar, int data_type)
{
return (CCTK_ReduceArray (GH, proc, operation_handle,
1, data_type, out_scalar,
1, 1, data_type, 1, in_scalar));
}
void FMODIFIER FORTRAN_NAME(CCTK_ReduceLocalScalar)(int *fortran_return,
cGH *GH,
int *proc,
int *operation_handle,
void *in_scalar,
void *out_scalar,
int *data_type)
{
*fortran_return = CCTK_ReduceArray (GH, *proc, *operation_handle,
1, *data_type, out_scalar,
1, 1, *data_type, 1, in_scalar);
}
/*@@
@routine CCTK_ReduceLocalArray1D
@date Thu Oct 14 12:10:01 1999
@author Gerd Lanfermann
@desc
Interface to the migthy CCTK_Reduce for
reduction of local 1D arrays.
@enddesc
@calls
@calledby
@history
@endhistory
@@*/
int CCTK_ReduceLocalArray1D (cGH *GH, int proc, int operation_handle,
void *in_array1d, void *out_array1d, int num_in_array1d,
int data_type)
{
return (CCTK_ReduceArray (GH, proc, operation_handle,
num_in_array1d, data_type, out_array1d,
1, 1, data_type, 1, in_array1d));
}
void FMODIFIER FORTRAN_NAME(CCTK_ReduceLocalArray1D)(int *fortran_return,
cGH *GH,
int *proc,
int *operation_handle,
void *in_array1d,
void *out_array1d,
int *num_in_array1d,
int *data_type)
{
*fortran_return = CCTK_ReduceArray (GH, *proc, *operation_handle,
*num_in_array1d, *data_type, out_array1d,
1, 1, *data_type, 1,in_array1d);
}
|