Hi Williams,

On Jan 22, 8:52 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> On Jan 21, 2008 11:36 PM, Francois <[EMAIL PROTECTED]> wrote:
>
>
>
>
>
> > On Jan 22, 8:04 pm, mabshoff <[EMAIL PROTECTED]
> > dortmund.de> wrote:
>
> > > > On the funny side of things my regular copy fails the calculus.py
> > > > test
> > > > because it takes too much time, my ebuild one passes it without
> > > > problem.
>
> > > Ok, that is odd. Does it timeout or hang?
>
> > Timeout:
> > sage -t  devel/sage-main/sage/calculus/calculus.py          *** ***
> > Error: TIMED OUT! *** ***
> > *** *** Error: TIMED OUT! *** ***
> >          [182.4 s]
>
> > OF course the ebuild one may have some extra optimizations from
> > the Gentoo C(XX)FLAGS that I didn't kill and the test is run by root
> > and not a regular user.
>
> > For BLAS I use ATLAS-3.8.0 I don't think there is any differences
> > between the sources used by Gentoo and sage (tell me if I am
> > wrong) you have the Gentoo patch and we also have the
> > pentium-M patch. The only difference I can think of is one was
> > compiled by gfortran and the other by g95.
>
> The calculus.py module likely doesn't use ATLAS at all.  The only thing
> that would have much of an impact on speed would be Maxima, probably.
>
> What hardware are you using exactly?  On a 2.6Ghz machine I get:
>
> teragon:calculus was$ sage -t calculus.py
> sage -t  calculus.py
>          [44.3 s]
>
> What happens if you do
>
>    sage -t --verbose calculus.py
>
> i.e., do you visibly see any doctests taking a really long time?  For
> me the main
> time takers are some plots (this should be optimized soon, actually.)
>
> I seem to vaguely recall maybe you are using a different version of Maxima
> than the one in Sage?  Maybe the newer Maxima is simply faster at some
> key operations, or maybe we compile clisp or maxima in some stupid
> way that makes it slower (that would be _very_ interesting to get to the
> bottom of, it is the case).
>
At the moment I conduct tests on my home machine rather than on
a computer at work (Massey university in New Zealand) but apparently
it
should be similar:
AMD Athlon(tm) XP 2600+

Tonight the test passed both in verbose and non-verbose form.
Must have been a glitch or something going on on my computer
at the time.

I used maxima 5.13 as 5.14 will fail this test amongst other, but yes
for some reason when I tested 5.14 (outside of sage) it felt faster
but I haven't try to quantify it - so take that with a big grain of
salt.

Francois
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