On Jan 4, 10:54 pm, jara <[EMAIL PROTECTED]> wrote:
> On Jan 4, 5:38 pm, mabshoff <[EMAIL PROTECTED]
>
> dortmund.de> wrote:
>
> > Hi jara,
>
> > you are correct.The problem is that we build the binaries on a
> > relative modern CPU and hence the binaries cause problems on CPUs like
> > yours. The solution is to build from source. We plan to build on older
> > CPUs in the future, but haven't gotten the needed hardware yet.
>
> > Cheers,
>
> > Michael
Hi,
> Hi,
> I think you just need to pass -march=i686 to the gcc when building the
> precompiled
> "i686" binaries, as imho everyone else does.
the problem is ATLAS which is a tuned BLAS/Lapack library that gets
you maximum performance for a given CPU type. If you have ATLAS
libraries from your distribution you can try replacing the ones in
$SAGE_LOCAL/lib. Those would be
libatlas.a, libatlas.so, libcblas.a, libcblas.so, libf77blas.a and
libf77blas.so
Compiling ATLAS with -march=i686 wouldn't work and destroy the
performance advantage of using it in the first place. It is a trade
off we did make and hopefully we will have more generic binaries soon.
> Also would it be possible to put back the old versions of sage in the
> download section?
> I used v2.8 and then just today I've installed v2.9. It booted fine so
> I've just deleted the old
> version altogether only to run into the bug in the very next moment.
> Now I am left with no working
> version of sage :-(
Sorry, we do not keep older binaries around due to space limitations.
Maybe somebody else on the list has something lying around and can
help you out. Building from source is surprisingly easy assuming you
have a decent compiler, i.e. gcc 3.4.x or gcc 4.1.x or later.
Cheers,
Michael
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