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[SUPERSEDED - use joblib PR] FIX Windows conda-forge MKL CI failure#12

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[SUPERSEDED - use joblib PR] FIX Windows conda-forge MKL CI failure#12
ogrisel wants to merge 2 commits into
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cursor/joblib-fix-windows-mkl-571b

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@ogrisel

@ogrisel ogrisel commented Jul 10, 2026

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This fork PR is superseded. Please open the upstream PR instead:

https://github.com/joblib/threadpoolctl/compare/master...ogrisel:cursor/joblib-fix-windows-mkl-571b?expand=1


Fixes Windows pylatest_conda_forge_mkl CI failure on joblib/threadpoolctl.

The conda-forge MKL environment loads both libiomp and libomp, triggering RuntimeWarning on every ThreadpoolController init. pytest runs with -W error, so tests fail.

This warning is already documented as Linux-specific; this change skips it on non-Linux platforms.

Validated: pylatest_conda_forge_mkl passes on fork CI.

Open in Web Open in Cursor 

The incompatibility between Intel and LLVM OpenMP runtimes is documented
as a Linux-specific issue. Emitting the warning on Windows caused CI
failures in the conda-forge MKL job because pytest runs with -W error.

Co-authored-by: Olivier Grisel <olivier.grisel@ensta.org>
@cursor cursor Bot changed the title FIX Windows conda-forge MKL CI failure [SUPERSEDED - use joblib PR] FIX Windows conda-forge MKL CI failure Jul 10, 2026
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