[Numpy-discussion] atlas not found, why?

Scott Sinclair sinclaird@ukzn.ac...
Tue Nov 4 04:12:26 CST 2008

>> "T J" <tjhnson@gmail.com> 11/04/08 12:59 AM
On Mon, Nov 3, 2008 at 10:46 AM, T J <tjhnson@gmail.com> wrote:
> Since these are all in the standard locations, I am building without a
> site.cfg.  Here is the beginning info:

>> Apparently, this is not enough.  Only if I also set the ATLAS
>> environment variable am I able to get this working as expected.

>> So can someone explain why I *must* define ATLAS.  I tried a number of
>> variations on site.cfg and could not get numpy to find atlas with any
>> of them.

When I upgraded from Ubuntu 8.04 to 8.10 it broke my Numpy install (mighty irritating). I haven't looked in detail, but It seems as if some of the packages related to ATLAS have been renamed and the post-upgrade "cleanup" removed the development packages as it considered them obsolete.

I made sure that libatlas-base-dev and libatlas-sse2-dev (this machine supports sse2) were installed and was able to rebuild and install Numpy with no problems. I do not have an ATLAS environment variable.

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