2013/9/3 Gael Varoquaux <gael.varoqu...@normalesup.org>:
> On Tue, Sep 03, 2013 at 02:39:04PM -0400, Skipper Seabold wrote:
>> from numpy.distutils.system_info import get_info
>> blas_info = get_info('blas_opt', 0)
>> blas_info.get('define_macros')
>
> I don't know.
>
>> My numpy is linked against openblas, and I don't have a
>> 'define_macros' key, so I don't know.
>
> Currently, scikit-learn doesn't build with openblas.Well it works well if you get numpy to build correctly against openblas by using this patch: https://github.com/akesandgren/numpy/commit/363339dd3a9826f3e3e7dc4248c258d3c4dfcd7c More details in the discussion on this issue: https://github.com/scikit-learn/scikit-learn/pull/2388 > However, it is > important to keep in mind that openblas has some quirks (like the fact > that can cannot use it after forking). Which is also sometimes the case on the system blas under OSX BTW. >> Is it always the case then that scikit-learn links against the >> included reference BLAS if the above fails. Is there some other way to >> specify the source of local optimized BLAS headers and libraries? > > I believe that editing the standard site.cfg file, as in the scipy build > system should do it. AFAIK this is in the site.cfg of numpy but without the. Also under OSX the system blas takes precedence unless the ATLAS env variable is defined and points to the openblas lib (the .so or .a file), which is probably another bug in the numpy distutils stuff. I did not have time to have a deeper look though. -- Olivier http://twitter.com/ogrisel - http://github.com/ogrisel ------------------------------------------------------------------------------ Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clktrk _______________________________________________ Scikit-learn-general mailing list Scikit-learn-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
