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//------------------------------------------------------------------------------
// GB_mex_test33: test GrB_get and GrB_set (context)
//------------------------------------------------------------------------------
// 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 ;
void mexFunction
(
int nargout,
mxArray *pargout [ ],
int nargin,
const mxArray *pargin [ ]
)
{
//--------------------------------------------------------------------------
// startup GraphBLAS
//--------------------------------------------------------------------------
GrB_Info info, expected ;
bool malloc_debug = GB_mx_get_global (true) ;
GrB_Matrix A = NULL ;
GrB_Vector v = NULL ;
GrB_Scalar s = NULL, s_fp64 = NULL, s_int32 = NULL, s_fp32 = NULL ;
GxB_Context context = NULL ;
uint8_t stuff [256] ;
void *nothing = stuff ;
size_t size ;
char name [256] ;
char defn [2048] ;
int32_t code, i ;
float fvalue ;
double dvalue ;
OK (GrB_Scalar_new (&s_fp64, GrB_FP64)) ;
OK (GrB_Scalar_new (&s_fp32, GrB_FP32)) ;
OK (GrB_Scalar_new (&s_int32, GrB_INT32)) ;
//--------------------------------------------------------------------------
// GxB_Context get/set
//--------------------------------------------------------------------------
int32_t nthreads1 = 999, nthreads2 = 777 ;
GxB_get (GxB_NTHREADS, &nthreads1) ;
printf ("nthreads: %d\n", nthreads1) ;
OK (GxB_Context_get_INT_ (GxB_CONTEXT_WORLD, &nthreads2, GxB_NTHREADS)) ;
printf ("nthreads: %d\n", nthreads2) ;
CHECK (nthreads1 == nthreads2) ;
OK (GxB_Context_set_INT_ (GxB_CONTEXT_WORLD, 7, GxB_NTHREADS)) ;
OK (GxB_Context_get_INT_ (GxB_CONTEXT_WORLD, &nthreads2, GxB_NTHREADS)) ;
CHECK (nthreads2 == 7) ;
OK (GxB_Global_Option_get (GxB_NTHREADS, &i)) ;
CHECK (i == 7) ;
OK (GrB_Scalar_setElement_FP64 (s_int32, 31)) ;
OK (GxB_Context_set_Scalar_ (GxB_CONTEXT_WORLD, s_int32, GxB_NTHREADS)) ;
OK (GxB_Context_get_Scalar_ (GxB_CONTEXT_WORLD, s_fp64, GxB_NTHREADS)) ;
OK (GrB_Scalar_extractElement_FP64 (&dvalue, s_fp64)) ;
CHECK (dvalue == 31) ;
GxB_set (GxB_NTHREADS, nthreads1) ;
int32_t gpu ;
OK (GxB_Context_get_INT_ (GxB_CONTEXT_WORLD, &gpu, GxB_GPU_ID)) ;
CHECK (gpu == -1) ;
gpu = 4 ;
OK (GxB_Context_set_INT_ (GxB_CONTEXT_WORLD, 3, GxB_GPU_ID)) ;
OK (GxB_Context_get_INT_ (GxB_CONTEXT_WORLD, &gpu, GxB_GPU_ID)) ;
CHECK (gpu == -1) ;
OK (GxB_Context_set_Scalar_ (GxB_CONTEXT_WORLD, s_int32, GxB_GPU_ID)) ;
OK (GxB_Context_get_Scalar_ (GxB_CONTEXT_WORLD, s_fp64, GxB_GPU_ID)) ;
OK (GrB_Scalar_extractElement_FP64 (&dvalue, s_fp64)) ;
CHECK (dvalue == -1) ;
double chunk ;
OK (GxB_Context_get_Scalar_ (GxB_CONTEXT_WORLD, s_fp64, GxB_CHUNK)) ;
OK (GrB_Scalar_extractElement_FP64 (&chunk, s_fp64)) ;
printf ("chunk: %g\n", chunk) ;
OK (GrB_Scalar_setElement_FP64 (s_fp64, 2048)) ;
OK (GxB_Context_set_Scalar_ (GxB_CONTEXT_WORLD, s_fp64, GxB_CHUNK)) ;
OK (GxB_Context_get_Scalar_ (GxB_CONTEXT_WORLD, s_fp32, GxB_CHUNK)) ;
OK (GrB_Scalar_extractElement_FP32 (&fvalue, s_fp32)) ;
CHECK (fvalue == 2048) ;
printf ("new chunk: %g\n", fvalue) ;
OK (GxB_Context_get_SIZE_ (GxB_CONTEXT_WORLD, &size, GrB_NAME)) ;
CHECK (size == GxB_MAX_NAME_LEN) ;
OK (GxB_Context_get_String_ (GxB_CONTEXT_WORLD, name, GrB_NAME)) ;
printf ("name of world [%s]\n", name) ;
CHECK (MATCH (name, "GxB_CONTEXT_WORLD")) ;
expected = GrB_INVALID_VALUE ;
ERR (GxB_Context_set_String_ (GxB_CONTEXT_WORLD, "newname", GrB_NAME)) ;
OK (GxB_Context_get_String_ (GxB_CONTEXT_WORLD, name, GrB_NAME)) ;
CHECK (MATCH (name, "GxB_CONTEXT_WORLD")) ;
ERR (GxB_Context_get_SIZE_ (GxB_CONTEXT_WORLD, &size, GxB_FORMAT)) ;
expected = GrB_INVALID_VALUE ;
ERR (GxB_Context_get_VOID_ (GxB_CONTEXT_WORLD, nothing, 0)) ;
ERR (GxB_Context_set_VOID_ (GxB_CONTEXT_WORLD, nothing, 0, 0)) ;
ERR (GxB_Context_get_String_ (GxB_CONTEXT_WORLD, name, 999)) ;
expected = GrB_INVALID_VALUE ;
ERR (GxB_Context_get_INT_ (GxB_CONTEXT_WORLD, &i, GrB_NAME)) ;
ERR (GxB_Context_get_Scalar_ (GxB_CONTEXT_WORLD, s_fp32, GrB_NAME)) ;
ERR (GxB_Context_set_INT_ (GxB_CONTEXT_WORLD, 7, GrB_NAME)) ;
ERR (GxB_Context_set_Scalar_ (GxB_CONTEXT_WORLD, s_fp64, GrB_NAME)) ;
expected = GrB_EMPTY_OBJECT ;
OK (GrB_Scalar_clear (s_int32)) ;
ERR (GxB_Context_set_Scalar_ (GxB_CONTEXT_WORLD, s_int32, GxB_NTHREADS)) ;
OK (GxB_Context_new (&context)) ;
OK (GxB_Context_get_String_ (context, name, GrB_NAME)) ;
CHECK (MATCH (name, "")) ;
OK (GxB_Context_set_String_ (context, "another_name", GrB_NAME)) ;
OK (GxB_Context_get_String_ (context, name, GrB_NAME)) ;
CHECK (MATCH (name, "another_name")) ;
OK (GxB_Context_get_SIZE_ (context, &size, GrB_NAME)) ;
CHECK (size == strlen (name) + 1) ;
OK (GxB_Context_disengage (NULL)) ;
GrB_free (&context) ;
//--------------------------------------------------------------------------
// finalize GraphBLAS
//--------------------------------------------------------------------------
GrB_free (&A) ;
GrB_free (&v) ;
GrB_free (&s) ;
GrB_free (&s_fp64) ;
GrB_free (&s_fp32) ;
GrB_free (&s_int32) ;
GB_mx_put_global (true) ;
printf ("\nGB_mex_test33: all tests passed\n\n") ;
}
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