[SciPy-user] ATLAS and LPACK

Robert Kern rkern at ucsd.edu
Fri Sep 10 18:25:17 CDT 2004

quendor at nandor.net wrote:
> I have followed the excellent instructions on installing scipy on OS X 
> provided by Christopher Fonnesbeck. Everything seems to work as expected.
> My only question is if I need to install ATLAS and LPACK separately 
> (from source) or are they already included if I have previously 
> installed the Developer Tools?

You need to install separately from source. I would also mention that 
the BLAS portion of the vecLib framework that comes with your OS *is* 
ATLAS, but it will be a little incomplete compared to self-built ATLAS 
and LAPACK. Namely, the handful of LAPACK functions for which ATLAS 
includes row-major versions and optimizes are missing. Possibly the 
row-major version of the BLAS functions are also missing, but I haven't 

> Thanks

Robert Kern
rkern at ucsd.edu

"In the fields of hell where the grass grows high
  Are the graves of dreams allowed to die."
   -- Richard Harter

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