is it possible to retrieve command window output of parallel worker

Asked by Jim Hokanson on 6 Jan 2018

Latest activity Edited by Walter Roberson on 6 Jan 2018

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Is it possible to retrieve the command window output from a worker when using parfeval? Specifically I'd like to catch listener errors that are typically printed out as warnings (normal messages) in the command window.

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Answer by Walter Roberson on 6 Jan 2018

https://www.mathworks.com/help/distcomp/parallel-command-window.html

https://www.mathworks.com/matlabcentral/answers/159061-getting-output-from-parallel-jobs-that-would-regularly-go-to-a-diary

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Jim Hokanson on 6 Jan 2018

Thanks for the links. I'm curious as to how pmode works with parfeval. I'll have to give it a try when I get a chance.

The second question seems to be unanswered. At some point I was getting errors on quitting Matlab and wanted to know what was being printed to the command window. Thinking myself clever I setup a diary. Unfortunately, as the poster is pointing out, if you don't close the diary you don't get the output. Thus I've never found a good way of properly capturing the command window output (whether in the client or in a worker).

Although now that I think about it is possible to grab the client's command window text (I think) and thus if I ran the same code on the worker that might work as well ...

Link

Answer by Jim Hokanson on 6 Jan 2018

Edited by Walter Roberson on 6 Jan 2018

Presumably you could use this when run in the worker ... https://www.mathworks.com/matlabcentral/fileexchange/31438-command-window-text

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