2013/11/7 Vlad Niculae <zephy...@gmail.com>:
>> This is a known problem with np.linalg.norm, and so is the memory
>> consumption. You should use sklearn.utils.extmath.norm for the
>> Frobenius norm.
>
> Hmm. Indeed I missed that, but still, this is a bit odd.
> sklearn.utils.extmath.norm is slower than raveling on my anaconda with
> MKL accelerate setup:

Apologies, I was mistaken. For a squared norm, ravel+dot is actually
the way to go. nrm2 typically wastes time to ensure numerical
stability.

------------------------------------------------------------------------------
November Webinars for C, C++, Fortran Developers
Accelerate application performance with scalable programming models. Explore
techniques for threading, error checking, porting, and tuning. Get the most 
from the latest Intel processors and coprocessors. See abstracts and register
http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk
_______________________________________________
Scikit-learn-general mailing list
Scikit-learn-general@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/scikit-learn-general

Reply via email to