MATLAB: Parfor and global variables

globalparallel computingParallel Computing Toolboxparfor

Hi, could you help me please in solving this problem? I need to use parfor and at the same time the function simuconf inside parfor uses global variables. I have read other similar questions but I haven't been able to find a solution. Thanks a lot!
B=7; 
coeffconfidsimple=randn(200,2);
cutoffcoeffs=size(coeffconfidsimple,1);
temp=zeros(B,201);
parfor w=1:B    
    mstr=num2str(w);  
    A=load(['subdata' mstr '.mat']); %At each iteration I load subdata(w) 
    E=load(['freq' mstr '.mat']);    %and freq(w) and I have to transform them in
                                     %numerical arrays             
    C= struct2cell(A);
    D= struct2cell(E);
    global subdata
    global freq
    subdata= cell2mat(C);
    freq=cell2mat(D);
compare=zeros(cutoffcoeffs,1);  
for x=1:cutoffcoeffs
    [compare(x)]=simuconf(coeffconfidsimple(x,:)'); %This function uses  
                                                    %subdata and freq
                                                    %at each iteration
end
temp(w,:)=[w ((compare)*size(subdata,1))'];     
end

Best Answer

Why use globals? They are often just confusing and hard to debug. Just pass them into simuconf.
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