How does parallel computing toolbox works in nested loop?
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Say pseudo code as following:
parfor ii = 1:2
firtgp(X_, y, 'UseParallel', true);
end
Now assume 8 workers available, how are these 8 workers assigned to the task above?
采纳的回答
Raymond Norris
2023-5-6
0 个投票
MATLAB will run the inner parfor loop as a for-loop. Therefore, in your example, where you have a parallel pool of 8 workers, 2 will be used for the ii loop and the other 6 will stay idle. The parfor loop embedded within firtgp will run as a for-loop.
2 个评论
mono
2023-5-6
Raymond Norris
2023-5-10
No. You have to either choose the parallel for-loop on the outside (ii = 1:2) or the inside (firtgp).
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