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function [nthreads chunk] = nthreads_set (nthreads, chunk)
%NTHREADS_SET set # of threads and chunk to use in GraphBLAS
%
% [nthreads chunk] = nthreads_set (nthreads, chunk)
%
% If nthreads is empty, or if no input arguments, nthreads is set to 1.
% If chunk is empty, or if no input arguments, chunk is not modified.
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
global GraphBLAS_nthreads
if (nargin < 1)
nthreads = [ ] ;
end
if (isempty (nthreads))
nthreads = int32 (1) ;
end
nthreads = int32 (nthreads) ;
GraphBLAS_nthreads = nthreads ;
if (nargin > 1 || nargout > 1)
global GraphBLAS_chunk
if (nargin > 1)
GraphBLAS_chunk = chunk ;
elseif (isempty (GraphBLAS_chunk))
GraphBLAS_chunk = 64*1024 ;
end
if (nargout > 1)
chunk = GraphBLAS_chunk ;
end
end
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