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//------------------------------------------------------------------------------
// GxB_Global_Option_set: set a global default option for all future matrices
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB.h"
GrB_Info GxB_Global_Option_set // set a global default option
(
GxB_Option_Field field, // option to change
... // value to change it to
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_WHERE1 ("GxB_Global_Option_set (field, value)") ;
//--------------------------------------------------------------------------
// set the global option
//--------------------------------------------------------------------------
va_list ap ;
switch (field)
{
//----------------------------------------------------------------------
// matrix format
//----------------------------------------------------------------------
case GxB_HYPER_SWITCH :
{
va_start (ap, field) ;
double hyper_switch = va_arg (ap, double) ;
va_end (ap) ;
GB_Global_hyper_switch_set ((float) hyper_switch) ;
}
break ;
case GxB_BITMAP_SWITCH :
{
va_start (ap, field) ;
double *bitmap_switch = va_arg (ap, double *) ;
va_end (ap) ;
if (bitmap_switch == NULL)
{
// set all switches to their default
GB_Global_bitmap_switch_default ( ) ;
}
else
{
for (int k = 0 ; k < GxB_NBITMAP_SWITCH ; k++)
{
float b = (float) (bitmap_switch [k]) ;
GB_Global_bitmap_switch_set (k, b) ;
}
}
}
break ;
case GxB_FORMAT :
{
va_start (ap, field) ;
int format = va_arg (ap, int) ;
va_end (ap) ;
if (! (format == GxB_BY_ROW || format == GxB_BY_COL))
{
return (GrB_INVALID_VALUE) ;
}
GB_Global_is_csc_set (format != (int) GxB_BY_ROW) ;
}
break ;
//----------------------------------------------------------------------
// OpenMP control
//----------------------------------------------------------------------
case GxB_GLOBAL_NTHREADS : // same as GxB_NTHREADS
{
va_start (ap, field) ;
int nthreads_max_new = va_arg (ap, int) ;
va_end (ap) ;
// if < 1, then treat it as if nthreads_max = 1
nthreads_max_new = GB_IMAX (1, nthreads_max_new) ;
GB_Global_nthreads_max_set (nthreads_max_new) ;
}
break ;
case GxB_GLOBAL_CHUNK : // same as GxB_CHUNK
{
va_start (ap, field) ;
double chunk = va_arg (ap, double) ;
va_end (ap) ;
GB_Global_chunk_set (chunk) ;
}
break ;
//----------------------------------------------------------------------
// memory pool control
//----------------------------------------------------------------------
case GxB_MEMORY_POOL :
{
va_start (ap, field) ;
int64_t *free_pool_limit = va_arg (ap, int64_t *) ;
va_end (ap) ;
if (free_pool_limit == NULL)
{
// set all limits to their default
GB_Global_free_pool_init (false) ;
}
else
{
for (int k = 3 ; k < 64 ; k++)
{
GB_Global_free_pool_limit_set (k, free_pool_limit [k]) ;
}
}
}
break ;
//----------------------------------------------------------------------
// diagnostics
//----------------------------------------------------------------------
case GxB_BURBLE :
{
va_start (ap, field) ;
int burble = va_arg (ap, int) ;
va_end (ap) ;
GB_Global_burble_set ((bool) burble) ;
}
break ;
case GxB_PRINTF :
{
va_start (ap, field) ;
void *printf_func = va_arg (ap, void *) ;
va_end (ap) ;
GB_Global_printf_set ((GB_printf_function_t) printf_func) ;
}
break ;
case GxB_FLUSH :
{
va_start (ap, field) ;
void *flush_func = va_arg (ap, void *) ;
va_end (ap) ;
GB_Global_flush_set ((GB_flush_function_t) flush_func) ;
}
break ;
case GxB_PRINT_1BASED :
{
va_start (ap, field) ;
int onebased = va_arg (ap, int) ;
va_end (ap) ;
GB_Global_print_one_based_set ((bool) onebased) ;
}
break ;
//----------------------------------------------------------------------
// CUDA (DRAFT: in progress, do not use)
//----------------------------------------------------------------------
case GxB_GLOBAL_GPU_CONTROL : // same as GxB_GPU_CONTROL
{
va_start (ap, field) ;
GrB_Desc_Value gpu_control = (GrB_Desc_Value) va_arg (ap, int) ;
va_end (ap) ;
GB_Global_gpu_control_set (gpu_control) ;
}
break ;
case GxB_GLOBAL_GPU_CHUNK : // same as GxB_GPU_CHUNK
{
va_start (ap, field) ;
double gpu_chunk = va_arg (ap, double) ;
va_end (ap) ;
GB_Global_gpu_chunk_set (gpu_chunk) ;
}
break ;
default :
return (GrB_INVALID_VALUE) ;
}
return (GrB_SUCCESS) ;
}
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