Always use some specific servers to build a package

Sylvestre Ledru sylvestre at debian.org
Tue Jun 22 09:38:31 UTC 2010


Le mardi 22 juin 2010 à 11:18 +0200, Samuel Thibault a écrit :
> Sylvestre Ledru, le Tue 22 Jun 2010 10:53:40 +0200, a écrit :
> > Le mardi 22 juin 2010 à 10:36 +0200, Samuel Thibault a écrit :
> > > Sylvestre Ledru, le Tue 22 Jun 2010 10:15:35 +0200, a écrit :
> > > > Le mardi 22 juin 2010 à 10:01 +0200, Samuel Thibault a écrit :
> > > > > Sylvestre Ledru, le Tue 22 Jun 2010 09:20:18 +0200, a écrit :
> > > > > > Le dimanche 20 juin 2010 à 00:55 +0200, Kurt Roeckx a écrit :
> > > > > > > On Wed, Jun 16, 2010 at 11:22:41PM +0200, Sylvestre Ledru wrote:
> > > > > > > > Le samedi 12 juin 2010 à 00:25 +0200, Samuel Thibault a écrit :
> > > > > > > > > Sylvestre Ledru, le Sat 12 Jun 2010 00:01:25 +0200, a écrit :
> > > > > > > > > > Does anyone see a better way of handling this specific problem ?
> > > > > > > > > 
> > > > > > > > > Can't atlas just build the binaries and not try to run then?
> > > > > > > > No because Atlas is building many time the same sources to see which
> > > > > > > > optimisation performs best...
> > > > > > > 
> > > > > > > Does that mean it's optimizing for the hosts that build it?  
> > > > > > It is indeed the way atlas is working... 
> > > > > > The best way to achieve maximum performances is to build locally atlas.
> > > > > > No doubt about that.
> > > > > 
> > > > > Then can't there be a flag to just select a not-so-optimised-but-generic
> > > > > version?
> > > > This task is done by the base package of atlas.
> > > 
> > > I mean, including sse2, sse3 etc. generic versions too.
> > Sorry but I don't understand your suggestion ?!
> > 
> > When Atlas is built locally, it will detected automatically what are the
> > extensions available on the CPU..
> 
> I understand that. What I mean is that a buildd shouldn't _need_ to have
> sse3 capabilities to be able to build the sse3 package. 
I agree on the principle (and I really wished it was the case) but it is
not the way Atlas build system is working ...

Sylvestre





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