scikit-learn/scikit-learn — comment on commit 7769275dc4fb9f5f8ea6448ecfbaffe4fdcbf1a6
File:  line 0
By GaelVaroquaux:

> Regarding grid-search, looking at the grid search source code, yes
> there's gonna be a problem because it keeps all the estimators in
> memory. We need a version of grid search that can release the
> estimators so they get garbage-collected.

Yes, agreed.