smpd assigning to workers with labindex

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Knut Jørgen 2020-6-17

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https://ww2.mathworks.cn/matlabcentral/answers/549825-smpd-assigning-to-workers-with-labindex

评论： Knut Jørgen 2020-6-19

I have used system(externalporgrema) in my program and can therfore not parfor. How can I assigne fprintf to each work so that I get this function to work.

n=100000
spmd
    while i < n+1
        i = labindex + k;
        
        fprintf('iteration number %d and k %d, labindex %d \n',labindex+k,k,labindex);
        
        if labindex == prs
            k = k +prs;
        end
    end
end

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Edric Ellis 2020-6-18

There is no fundamental restriction on using system from within a parfor loop. It's not clear what you're trying to parallelise here - what does your serial code look like?

Knut Jørgen 2020-6-19