[Numpy-discussion] BLAS and LAPACK ABI questions (mostly OSX related)

[Matthew Brett]

Hi,

On Mon, Jun 9, 2014 at 2:31 AM, Robert McGibbon <rmcgibbo at gmail.com> wrote:
> Yeah, that's definitely not the right signature for sdot when linked against
> the Accelerate framework.
>
> But what's the purpose of those wrappers in _umath_linalg? The one for sdot,
> for example, doesn't appear to be used internally, and it isn't available
> from the python side. While scipy has all of those function pointers
> accessible in scipy.linalg.blas (e.g. scipy.linalg.blas.sdot._cpointer),
> those function pointers point to the underlying blas function and expose the
> ABI differences between platforms, leading to, for example the utter
> nightmare of using the scipy blas function pointers from cython in a cross
> platform way: https://gist.github.com/anonymous/6659007.

Is it possible this is related to:

https://github.com/numpy/numpy/issues/4007

or even:

https://github.com/numpy/numpy/issues/4776

?

Best,

Matthew