DOC clarify that n_jobs argument uses threading in pairwise_distances and pairwise_kernels#29693
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lesteve merged 2 commits intoscikit-learn:mainfrom Aug 23, 2024
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@stepan-srsen Thank you for the PR!
I have a minor nit, but other wise LGTM.
Co-authored-by: Thomas J. Fan <thomasjpfan@gmail.com>
lesteve
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Merging this one thanks @stepan-srsen! |
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… and pairwise_kernels (scikit-learn#29693) Co-authored-by: Stepan Srsen <srsen@manganese.itc.univie.ac.at> Co-authored-by: Thomas J. Fan <thomasjpfan@gmail.com>
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… and pairwise_kernels (scikit-learn#29693) Co-authored-by: Stepan Srsen <srsen@manganese.itc.univie.ac.at> Co-authored-by: Thomas J. Fan <thomasjpfan@gmail.com>
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… and pairwise_kernels (#29693) Co-authored-by: Stepan Srsen <srsen@manganese.itc.univie.ac.at> Co-authored-by: Thomas J. Fan <thomasjpfan@gmail.com>
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Reference Issues/PRs
Fixes #29587
What does this implement/fix? Explain your changes.
Improves the documentation of
pairwise_distancesandpairwise_kernelsso that it is clear that they use threading when then_jobsargument is used. One could expect the functions to be truly parallel using multiprocessing otherwise, which is not the case and that has a serial performance impact for user-defined metric functions (see #29587).