[Distutils] warning about potential problem for wheels

[Chris Barker]

On Wed, Oct 14, 2015 at 9:54 AM, Antoine Pitrou <solipsis at pitrou.net> wrote:

> > IS that the case:
> > """
> > Note that my recently retired computer was 64 bit and had SSE but didn't
> > have SSE2 (I'm fairly sure - CPU was some budget AMD model)
> > """
> >
> > granted, such machines are probably really really rare, but maybe it does
> > matter for 64 bit, too?
>
> Unless I'm mistaken, SSE2 is part of the spec for x86-64 (spec which
> was originally devised by AMD), so I'm a bit skeptical about a
> SSE2-less 64-bit CPU.  Do you have any reference?


That was a quote from this thread... I have no idea beyond that.


> > > does this even matter?
> > > 32-bit builds on x86 generally bring you poorer performance by
> > > themselves,
> >
> > If a user has a 32 bit machine, they have no choice -- we could argue
> that
> > anyone for whom performance matters probably isn't running an old, cheap
> > machine, but still...
>
> The actual question is whether we want to introduce a significant
> amount of complexity and overhead for packagers and distributors, for
> the benefit of an extremely small users demography that will probably
> disappear altogether in a couple of years.
>

Actually, I thought you were advocating the opposite:

SSE2 on 64bit -- cause 64 bit machines without SSE2 are really rare, if
they exist at all.

no SSE2 on 32 bit -- because anyone to whom performance really matters
won't be running an old 32bit machine.

Seems reasonable to me.

-CHB

-- 

Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chris.Barker at noaa.gov
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/distutils-sig/attachments/20151014/e2bb72eb/attachment.html>