Package with x86 vector instruction support
Jussi Lehtola
jussilehtola at fedoraproject.org
Wed Apr 20 23:27:47 UTC 2011
On Wed, 20 Apr 2011 11:59:18 -0600
Jerry James <loganjerry at gmail.com> wrote:
> I'm packaging a library that does some heavy mathematical
> computations. The build system tries to cleverly determine whether an
> Intel CPU with vector instructions is being used.
What package are we talking about?
There is already at least one package in Fedora which does a similar
thing: ATLAS. It normally automatically tunes itself for the optimal
build flags, so some special tricks have to be done for packaging.
ATLAS has currently the following versions on Fedora:
i686: plain, 3dnow, sse, sse2 and sse3
x86_64: plain and sse2
The plain stands for the "atlas" package. I don't know what flags it
uses.
--
Jussi Lehtola
Fedora Project Contributor
jussilehtola at fedoraproject.org
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