My code takes so long to execute

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Muhamed Sewidan 2021-2-3

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/735302-my-code-takes-so-long-to-execute

评论： Image Analyst 2021-2-5

My code works fine until it gets to this block. This loop takes too long to execute. Is there any way to solve this problem?

if ~exist('nworkers','var'), nworkers = 0; end % default nworkers to zero
r1 = rad(1);
parfor (i = 1 : numel( kru ), nworkers)
    jlu(:,i)  =  sbesselj ( lkr, kru(i) );
    djlu(:,i) = dsbesselj ( l, kru(i) );
    if ru(i) > r1
        hlu(:,i) = sbesselh ( lkr, kru(i) );
        dhlu(:,i) = dsbesselh ( l, kru(i) );
    end
end