Waitbar in a spmd block in a GUI?

Is there a way to monitor the progress of a calculation inside a spmd block? In the example below I would use a waitbar inside the outermost loop, but they are not allowed in spmd blocks. Any idea on what I could do?

Thanks a lot for your input.

Here is a very simplified version of the code.

   spmd
                % This is the place where I would initialize a waitbar normally.

                for i = 1:A

                    for k =2:B

                      %Do stuff

                    end

                 % This is the place where I would put the waitbar.eg. waitbar(i/...)

                end

    end

Answer 1

[Edric Ellis]

In R2013b, there's the new function PARFEVAL which lets you program the pool workers asynchronously - one of the things this allows is to update graphics such as a progress bar.

You can't use PARFEVAL with the communicating features of SPMD such as labSend and labReceive.

There's an example here using PARFEVAL to use pool workers and display a waitbar.

[Ben11]

Ok thanks Edric I'll use it when I upgrade for the newest version.

Answer 2

[Walter Roberson]

Sorry, no, not with spmd. See http://www.mathworks.com/matlabcentral/newsreader/view_thread/258469

[Ben11]

Alright thanks anyway.