On Oct 6, 7:05 pm, "Tim Lahey" <[EMAIL PROTECTED]> wrote:
> On 10/6/07, mabshoff <[EMAIL PROTECTED]> wrote:
>
>
>
> > Yes it is and LinBox defaults to use it on OSX unless it is given
> > another BLAS (which we do). I added support for the AccFW for LinBox
> > on OSX (it made it upstream) and had planned to add it to all the
> > other packages in Sage that would benefit from it, but never went
> > beyond LinBox in verifying which ones already do so per default and
> > which ones need it added.
>
> I'm fairly certain that the AccFW isn't used for at least some
> of the packages. I think I've seen GSL building its own BLAS.
>
Yep, because we force detection for the build in BLAS to not have
external dependencies. I wanted to say that it would be interesting to
see if gsl, numpy, scipy and so on would default/work with the AccFW
on OSX because it is present all the time. That way we could add some
conditionals to spkg-install and skip compiling BLAS completely.
>
>
> > Overall the AccFW seems fairly competitive, but I still want to run
> > some benchmarks how it compares to the current release of ATLAS
> > because things have been moving quite rapidly for ATLAS on the Core
> > Duo support - it used to be that the 32 bit was faster than the 64 bit
> > build, but that has been fixed and performance of ATLAS on Corep Duos
> > improved by at least 80% in the last 3 months or so. I don't know if
> > Apple has updated the AccFW in that timeframe.
>
> Benchmarks would be good. I don't think the framework has
> been updated in a while. I suspect it will get updated when
> Leopard comes out.
>
Let's hope so, but we would still need to figure out what to do on
10.3 and 10.4. ATLAS only builds with a F77 compiler which Apple
doesn't ship, so that makes it difficult.
> Cheers,
>
> Tim.
Cheers,
Michael
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