This is a warning, not an error, displayed by the Code Analyzer. Not sure how MATLAB would "throw" this warning.
Depending on the size of the matrix/structure, this could be an issue. Specifically, for large size variables. Of course "large" is relative. But in your case, the vectors are very small -- this won't be an issue for you -- so you can use broadcast variables. To see how much data is being sent back and for, look at ticBytes and tocBytes.
If the variables are large, you could consider a couple of options
- Create additional variables that represent the portition of the larger variable you need. The Code Analyzer gives an example of this.
- Create temporay variables (created within the parfor). It's not how you'd write MATLAB serial code, but would avoid the transfer. For example
yA_vals = -5:5; n_yA = length(yA_vals);
parfor yAidx = 1:n_yA
% Create the temporary variable yA_vals in the parfor to avoid the
% transfer.
yA_vals = -5:5;
yA = yA_vals(yAidx);
fprintf('>Job 1 %d of %d at %s...\n',yA,yA_vals(end),datestr(now));
end
