[SciPy-user] Advantages of Intel's MKL

Nils Wagner nwagner at iam.uni-stuttgart.de
Sat Dec 9 02:15:09 CST 2006


On Sat, 09 Dec 2006 01:12:23 -0600
  Robert Kern <robert.kern at gmail.com> wrote:
> Nils Wagner wrote:
>> Thank you for your notes. If you have installed both,
>> ATLAS and MKL, which library will be used by default ?
> 
> It depends on how you set up your site.cfg .
> 
> If you follow the recommendation to only use the 
>[blas_opt] and [lapack_opt]
> sections explicitly, then you should get whatever you 
>set in those.
> 
> If you use only one of [mkl] and [atlas] sections, then 
>you should get whichever
> one you set.
> 
> If, for some strange reason, you put both [mkl] and 
>[atlas] sections in the same
> site.cfg (not recommended!), then the MKL will get 
>picked up first and ATLAS
> will be ignored.
> 
> -- 
> Robert Kern
> 
> "I have come to believe that the whole world is an 
>enigma, a harmless enigma
> that is made terrible by our own mad attempt to 
>interpret it as though it had
> an underlying truth."
>  -- Umberto Eco
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A final question...
Do I need Intel's C compiler to build numpy/scipy
with MKL support ?

Nils


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