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BUG: spatial: long hangs using Qhull in SciPy 1.13.0, in Colour CI #20613
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No way it can explain the runtime change from 15min to 4 hrs. Something else must have changed. I'd first verify the "new" run time is stable, then try to replicate locally. Then bisect. |
I will try to check if Github changed anything on their runners, I pointed
to Scipy as the culprit because it is the obvious change and this happens
in QHull by the looks of it but it could also be hardware related.
Thomas Mansencal - colour-science.org <https://www.colour-science.org> -
thomasmansencal.com <http://www.thomasmansencal.com>
…On Tue, 30 Apr 2024 at 12:39 PM, Evgeni Burovski ***@***.***> wrote:
Maybe gh-20337 <#20337>?
No way it can explain the runtime change from 15min to 4 hrs.
Something else must have changed. I'd first verify the "new" run time is
stable, then try to replicate locally. Then bisect.
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Confirming it is coming from 1.13.0, I banned the version and did a fresh build in ~15mins using 1.12.0: https://github.com/colour-science/colour/actions/runs/8890511725/job/24410682802 |
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Hey @ev-br, It is Windows only and I cannot reproduce locally as I'm developing on macOs. |
Just to confirm: with scipy 1.13 the Windows CI run takes 4hrs and MacOS and Linux runs take 15 mins, correct? Also, with scipy 1.12, all of them are 15 mins? It's likely much faster to debug in a Windows VM. If only to see if the issue is specific to the GH runners or windows in general. |
Correct yes! |
Is this a wheel install or you are building it yourself in the CI? |
It is a wheel install, Scipy is one of our dependencies. |
Right. To clarify, the installation is fast, but the test suite takes 4 hours. |
There was a substantial bump in vendored OpenBLAS version between |
Agreed that OpenBLAS version is the prime candidate. We have nightlies that were just upgraded from |
Describe your issue.
Hello,
We have seen our Windows Github Actions build times jumping from 15m to 4h15m after what seems an update from Scipy 1.12.0 to Scipy 1.13.0:
15m: https://github.com/colour-science/colour/actions/runs/8489605040/job/23259884769
4h15m: https://github.com/colour-science/colour/actions/runs/8845206377/job/24288653119
All the functions affected are touching Qhull via our
colour.volume.is_within_mesh_volume
definition:I saw a reference to a Qhull related change in the mailing list here: https://mail.python.org/archives/list/scipy-dev@python.org/thread/V25I4CIN556ZKKBIA2Q2OLVFGVYVYDEB/ but not the release notes on Github.
Any pointers would be appreciated, we will probably ban this version.
Cheers,
Thomas
Reproducing Code Example
Error message
SciPy/NumPy/Python version and system information
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