On Friday, June 13, 2014, Julian Taylor <jtaylor.debian@googlemail.com> wrote:
On 13.06.2014 14:07, Matthew Brett wrote:
> Hi,
> Summary : I'm planning to upload OSX wheels for numpy and scipy using
> the ATLAS blas / lapack library instead of the default OSX Accelerate
> framework.

thanks for doing this.

Have you built a generic atlas binary?
atlas tunes it self to the capabilities of the machine its building on.
So if the machine used to create be binary is newer than the oldest mac
machine we want to support it can produce errors due to the use of
illegal instructions (avx/sse4 etc.)
So far I know the unknown machine type will produce a somewhat generic
binary (but not for ARM).

 Sorry am traveling and dont have the reference to hand, but all intel macs have sse2.   So I built the atlas binaries with sse2 only...