Gotcha - so perhaps I should ensure FeatureUnion[n_jobs] + GirdSearch[n_jobs] < # cores?
On Fri, Jun 17, 2016 at 11:21 AM, Gael Varoquaux < [email protected]> wrote: > > I am typically careful with this, e.g., if my machine has 16 cores, I’d > > set feature union to n_jobs=3 and the gridsearch_cv to n_jobs=4 or so. > > Curious to hear what the scikit devs think about nesting calls > > n_jobs=-1; am I too conservative? > > Nested parallelism doesn't work. It's a limitation of multiprocessing. > _______________________________________________ > scikit-learn mailing list > [email protected] > https://mail.python.org/mailman/listinfo/scikit-learn >
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