How do I view a live execution of a dask graph?

Juan

In several talks about Dask, an animated task graph is shown with nodes coloured red as they are run and blue as they are completed (example: https://youtu.be/RA_2qdipVng?t=23m57s). I couldn't find this functionality in the documentation. Is it easy/possible for a user to produce this visualisation for their tasks?

MRocklin

We've done this with a custom callback. However this isn't fast enough to do live, doing layout and rendering the image with graphviz can be quite slow:

https://gist.github.com/mrocklin/5b7bf78621496697fa3001462e1910ae

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