MATLAB: How to follow progress of a parfor-loop

parfor

I would like to follow the run on a progress bar of a cycle. In case of simple for-loop is easy, but whatif I use parfor?

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Adam has given one example already: Take a look into the FileExchange. You find many corresponding solution if you search for "parfor":

https://www.mathworks.com/matlabcentral/fileexchange/?term=parfor

Related Solutions

MATLAB: Are temporary variables eliminated at the end of each parfor loop on every single worker

Yes, as mentioned in the documentation https://www.mathworks.com/help/parallel-computing/temporary-variable.html temporary variables are never sent back to the client. There are two ways to get results out of a parfor loop: either use sliced output variables, or reduction output variables. These variable types are explained here https://www.mathworks.com/help/parallel-computing/troubleshoot-variables-in-parfor-loops.html .

MATLAB: Parallel ODE solve using parfor-loop

The problem is that PARFOR doesn't know how to 'slice' your variables T and X because the indexing expression you're using is too complicated. There are more details on this page, but basically I think it should work to do this:

% pre-allocate rectangular T and X.
T = zeros(50, 101);
X = zeros(50, 101);
parfor i = 1:101
  ...
  % Assign whole columns of T and X using 'i' as the slicing index
  [T(:, i), X(:, i)] = ode45(...);
end
% Convert T and X back to single columns
T = T(:);
X = X(:);

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Related Solutions

MATLAB: Are temporary variables eliminated at the end of each parfor loop on every single worker

MATLAB: Parallel ODE solve using parfor-loop

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