1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
function ncores = demo_nproc (ncores_set)
%DEMO_NPROC determine the default # of cores, or set the # of cores to use
%
% Example:
% ncores = demo_nproc ; % return default # of cores
% ncores = demo_nproc (4) ; % set # cores to 4 (MATLAB only)
%
% See also nproc (Octave), maxNumCompThreads (MATLAB)
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
if (demo_octave)
% Octave: return the default # of cores, no way to change # of cores to use
ncores = nproc ;
else
if (nargin == 0)
% MATLAB: use the builtin maxNumCompThreads to restore the default
maxNumCompThreads ('automatic') ;
else
% MATLAB: use maxNumCompThreads to set the # of cores to use
maxNumCompThreads (ncores_set) ;
end
% return # of cores now in use
ncores = maxNumCompThreads ;
end
|
