[Numpy-discussion] Precision difference between dot and sum

[David Cournapeau]

On Tue, Nov 2, 2010 at 11:43 AM, Charles R Harris
<charlesr.harris at gmail.com> wrote:

>
> It seems to be more of a problem on 32 bits, what with the variety of sse*.
> OTOH, all 64 bit systems have at least sse2 available together with more sse
> registers and I believe the x87 instruction set is not available when
> running in 64 bit mode.

It is available, but used more sporadically than on i386, since it is
always available on amd64 architecture (at least up to SSE2).

cheers,

David