[Numpy-discussion] binary wheels for numpy?

[Ralf Gommers]

On Mon, May 18, 2015 at 6:34 AM, Nathaniel Smith <njs at pobox.com> wrote:

> On Sun, May 17, 2015 at 3:06 AM, Ralf Gommers <ralf.gommers at gmail.com>
> wrote:
> > There's the switch to OpenBLAS and building the right selection mechanism
> > for which arch to use:
> > http://article.gmane.org/gmane.comp.python.distutils.devel/20350. That
> seems
> > now feasible to complete on a reasonable time-scale, and the problems
> with
> > OpenBLAS seem to be mostly solved. Binaries which crash for ~1% of users
> > (which ATLAS-SSE2 would result in) are still not acceptable I think.
>
> Where are you getting this SSE2 number from btw?


This is info Matthew just collected from Firefox crash reports:
https://github.com/scipy/scipy/issues/4829#issuecomment-100354752

The most detailed
> public survey source for consumer hardware that I know is the Steam
> hardware survey:
>
>   http://store.steampowered.com/hwsurvey
>
> It's somewhat biased towards higher-end hardware b/c it targets
> gamers, but there is plenty of less-high-end hardware on there as well
> -- notice that 20% of the surveyed computers are using intel graphics.
> And they're reporting that 99.92% of surveyed computers have SSE*3*
> support, and 100.00% have SSE2. So assuming the significant digits are
> accurate, this puts the upper bound on SSE2 failure on these systems
> at ~0.05%. Even if gamers are 10x likelier to have new hardware then
> the rest of the world, 1% still seems to be at least an order of
> magnitude too high?
>

That would make life easier.....

Ralf
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