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//------------------------------------------------------------------------------
// GB_mex_hack: get or set the global hack flags
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB_mex.h"
#define USAGE "hack = GB_mex_hack (hack)"
#define NHACK 8
// current hacks (0-based):
//
// 0: saxpy3 balance
// 1: disable Werk
// 2: GPU control
// 3: disable the JIT entirely (returns GrB_NOT_IMPLEMENTED)
// 4: enable 32-bit methods
void mexFunction
(
int nargout,
mxArray *pargout [ ],
int nargin,
const mxArray *pargin [ ]
)
{
double *hack ;
if (nargin > 1 || nargout > 1)
{
mexErrMsgTxt ("usage: " USAGE "\n") ;
}
if (nargin == 1)
{
int n = mxGetNumberOfElements (pargin [0]) ;
hack = mxGetDoubles (pargin [0]) ;
for (int k = 0 ; k < GB_IMIN (NHACK, n) ; k++)
{
GB_Global_hack_set (k, (int64_t) hack [k]) ;
}
}
// GB_mex_hack returns an array of size NHACK
pargout [0] = mxCreateDoubleMatrix (1, NHACK, mxREAL) ;
hack = mxGetDoubles (pargout [0]) ;
for (int k = 0 ; k < NHACK ; k++)
{
hack [k] = (double) GB_Global_hack_get (k) ;
}
}
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