Hi @kyo219 - we have had reports in the past of the show_progress function acting strangely in notebooks. It’s all been re-written in 1.0 which should be out soon (or if you want to do a pip install from github).
That said, if it’s working on the CPU I suspect it is another issue.
@mitzimorris - I know you’ve used cmdstanpy in Google collab. Is the issue that cmdstan itself would need to be rebuilt with these flags, or could it be an issue with external dependencies? Not sure what opencl requires