parallel computing problem in subfuction

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lv 2014-11-17

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https://ww2.mathworks.cn/matlabcentral/answers/163008-parallel-computing-problem-in-subfuction

编辑： lv 2014-11-17

I have this simple parfor code

     Ne = round((E0max - E0min)/dE0);
     parfor count =1:Ne
         [etap, etaNzrp(count)] = shooting(E0min+(count-1)*dE0);
     end

when I run in for loop, it looks just fine. But this parfor loop report an error in subfunc shooting.

    function [eta, etaNz] = shooting(E)
    % Shooting method
    global m Eref Unef Egw bwbwbwb Egb dz Angstrom Nz hbar U e
    % Conduction band nonparabolicity
    mn = m .* ((1 + (E - Eref - Unef) / Egw) .* (bwbwbwb == 0) + (1 + (E - Eref - Unef) / Egb) .* (bwbwbwb == 1));
    if (min(mn) <= 0)
        disp('Error! Mass is negative!')
        return
    end
    eta = zeros(1, Nz);
    eta(2) = eps * dz * Angstrom;
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