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//------------------------------------------------------------------------------
// GB_mex_test22: reduce to scalar with user-data types
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB_mex.h"
#include "GB_mex_errors.h"
#define FREE_ALL ;
#define GET_DEEP_COPY ;
#define FREE_DEEP_COPY ;
typedef struct { double a ; double b ; double c ; double d ; } my32 ;
#define MY32_DEFN \
"typedef struct { double a ; double b ; double c ; double d ; } my32 ;"
void myadd32 (my32 *z, const my32 *x, const my32 *y) ;
void myadd32 (my32 *z, const my32 *x, const my32 *y)
{
z->a = x->a + y->a ;
z->b = x->b + y->b ;
z->c = x->c + y->c ;
z->d = x->d + y->d ;
}
#define MYADD32_DEFN \
"void myadd32 (my32 *z, const my32 *x, const my32 *y) \n" \
"{ \n" \
" z->a = x->a + y->a ; \n" \
" z->b = x->b + y->b ; \n" \
" z->c = x->c + y->c ; \n" \
" z->d = x->d + y->d ; \n" \
"}"
typedef struct {
double a ; double b ; double c ; double d ;
double e ; double f ; double g ; double k ; } my64 ;
#define MY64_DEFN \
"typedef struct { \n" \
" double a ; double b ; double c ; double d ; \n" \
" double e ; double f ; double g ; double k ; } my64 ; "
void myadd64 (my64 *z, const my64 *x, const my64 *y) ;
void myadd64 (my64 *z, const my64 *x, const my64 *y)
{
z->a = x->a + y->a ;
z->b = x->b + y->b ;
z->c = x->c + y->c ;
z->d = x->d + y->d ;
z->e = x->e + y->e ;
z->f = x->f + y->f ;
z->g = x->g + y->g ;
z->k = x->k + y->k ;
}
#define MYADD64_DEFN \
"void myadd64 (my64 *z, const my64 *x, const my64 *y) \n" \
"{ \n" \
" z->a = x->a + y->a ; \n" \
" z->b = x->b + y->b ; \n" \
" z->c = x->c + y->c ; \n" \
" z->d = x->d + y->d ; \n" \
" z->e = x->e + y->e ; \n" \
" z->f = x->f + y->f ; \n" \
" z->g = x->g + y->g ; \n" \
" z->k = x->k + y->k ; \n" \
"}"
void mexFunction
(
int nargout,
mxArray *pargout [ ],
int nargin,
const mxArray *pargin [ ]
)
{
//--------------------------------------------------------------------------
// startup GraphBLAS
//--------------------------------------------------------------------------
GrB_Info info ;
bool malloc_debug = GB_mx_get_global (true) ;
//--------------------------------------------------------------------------
// create the my32 type and Add operator and monoid
//--------------------------------------------------------------------------
GrB_Type My32 = NULL ;
OK (GxB_Type_new (&My32, sizeof (my32), "my32", MY32_DEFN)) ;
OK (GxB_print (My32, 3)) ;
GrB_BinaryOp MyAdd32 = NULL ;
OK (GxB_BinaryOp_new (&MyAdd32, (GxB_binary_function) myadd32,
My32, My32, My32, "myadd32", MYADD32_DEFN)) ;
OK (GxB_print (MyAdd32, 3)) ;
my32 zero32 ;
zero32.a = 0 ;
zero32.b = 0 ;
zero32.c = 0 ;
zero32.d = 0 ;
GrB_Monoid Monoid32 = NULL ;
OK (GrB_Monoid_new_UDT (&Monoid32, MyAdd32, (void *) &zero32)) ;
OK (GxB_print (Monoid32, 3)) ;
//--------------------------------------------------------------------------
// create a my32 matrix and reduce it to a scalar
//--------------------------------------------------------------------------
int n = 4 ;
GrB_Matrix A = NULL ;
OK (GrB_Matrix_new (&A, My32, n, n)) ;
my32 z32 ;
int k = 1 ;
for (int i = 0 ; i < n ; i++)
{
for (int j = i ; j < n ; j++)
{
z32.a = k++ ;
z32.b = (2*i+j) ;
z32.c = 0 ;
z32.d = 1 ;
OK (GrB_Matrix_setElement_UDT (A, (void *) &z32, i, j)) ;
printf ("A (%d, %d) = (%g, %g, %g, %g)\n", i, j,
z32.a, z32.b, z32.c, z32.d) ;
}
}
OK (GrB_wait (A, GrB_MATERIALIZE)) ;
OK (GxB_print (A, 3)) ;
OK (GrB_Matrix_reduce_UDT ((void *) &z32, NULL, Monoid32, A, NULL)) ;
printf ("sum: (%g, %g, %g, %g)\n", z32.a, z32.b, z32.c, z32.d) ;
CHECK (z32.a == 55) ;
CHECK (z32.b == 40) ;
CHECK (z32.c == 0) ;
CHECK (z32.d == 10) ;
GrB_free (&A) ;
//--------------------------------------------------------------------------
// create the my64 type and Add operator and monoid
//--------------------------------------------------------------------------
GrB_Type My64 = NULL ;
OK (GxB_Type_new (&My64, sizeof (my64), "my64", MY64_DEFN)) ;
OK (GxB_print (My64, 3)) ;
GrB_BinaryOp MyAdd64 = NULL ;
OK (GxB_BinaryOp_new (&MyAdd64, (GxB_binary_function) myadd64,
My64, My64, My64, "myadd64", MYADD64_DEFN)) ;
OK (GxB_print (MyAdd64, 3)) ;
my64 zero64 ;
zero64.a = 0 ;
zero64.b = 0 ;
zero64.c = 0 ;
zero64.d = 0 ;
zero64.e = 0 ;
zero64.f = 0 ;
zero64.g = 0 ;
zero64.k = 0 ;
GrB_Monoid Monoid64 = NULL ;
OK (GrB_Monoid_new_UDT (&Monoid64, MyAdd64, (void *) &zero64)) ;
OK (GxB_print (Monoid64, 3)) ;
//--------------------------------------------------------------------------
// create a my64 matrix and reduce it to a scalar
//--------------------------------------------------------------------------
OK (GrB_Matrix_new (&A, My64, n, n)) ;
my64 z64 ;
k = 1 ;
for (int i = 0 ; i < n ; i++)
{
for (int j = i ; j < n ; j++)
{
z64.a = k++ ;
z64.b = (2*i+j) ;
z64.c = 0 ;
z64.d = 1 ;
z64.e = 1-k ;
z64.f = 99 ;
z64.g = i+j+k ;
z64.k = k-j ;
OK (GrB_Matrix_setElement_UDT (A, (void *) &z64, i, j)) ;
printf ("A (%d, %d) = (%g, %g, %g, %g, %g, %g, %g, %g)\n", i, j,
z64.a, z64.b, z64.c, z64.d,
z64.e, z64.f, z64.g, z64.k) ;
}
}
OK (GrB_wait (A, GrB_MATERIALIZE)) ;
OK (GxB_print (A, 3)) ;
OK (GrB_Matrix_reduce_UDT ((void *) &z64, NULL, Monoid64, A, NULL)) ;
printf ("sum: (%g, %g, %g, %g, %g, %g, %g, %g)\n",
z64.a, z64.b, z64.c, z64.d, z64.e, z64.f, z64.g, z64.k) ;
CHECK (z64.a == 55) ;
CHECK (z64.b == 40) ;
CHECK (z64.c == 0) ;
CHECK (z64.d == 10) ;
CHECK (z64.e == -55) ;
CHECK (z64.f == 990) ;
CHECK (z64.g == 95) ;
CHECK (z64.k == 45) ;
GrB_free (&A) ;
//--------------------------------------------------------------------------
// finalize GraphBLAS
//--------------------------------------------------------------------------
GrB_free (&My32) ;
GrB_free (&MyAdd32) ;
GrB_free (&Monoid32) ;
GrB_free (&My64) ;
GrB_free (&MyAdd64) ;
GrB_free (&Monoid64) ;
GB_mx_put_global (true) ;
printf ("\nGB_mex_test22: all tests passed\n\n") ;
}
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