Made Broken Pipe Error more verbose #3292
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…istently with scipy.stats. Added test and updated example code.
…at py27 joblib does not make tests fail
…ed release notes.
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This is great! Needs a rebase. |
twiecki
reviewed
Dec 22, 2018
RELEASE-NOTES.md
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| - Fixed `Rice` distribution, which inconsistently mixed two parametrizations (#3286). | ||
| - `Rice` distribution now accepts multiple parameters and observations and is usable with NUTS (#3289). | ||
| - `sample_posterior_predictive` no longer calls `draw_values` to initialize the shape of the ppc trace. This called could lead to `ValueError`'s when sampling the ppc from a model with `Flat` or `HalfFlat` prior distributions (Fix issue #3294). | ||
| - Made `BrokenPipeError` for parallel sampling more verbose on Windows. |
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Sampling with more than 1 core on Windows os uses process spawning instead of forking. While the processes are being spawned, they are completely independent from the main process (the parent) and are unaware of how to communicate any error with the parent. This means that errors raised during the spawning, such as unpickling errors, lack of
if __name__ == "__main__"statements and potentially other problems are not informed to the main process, which can only see that the communication pipe with its children is broken. This PR ONLY changes the main process' error message because there is no way that it can know what happened to the errored spawn.