Greetings, and thanks very much for this feedback. I would be
interested in this code if/when you get a chance. I'd like to run
them with the new profiling option. I also can't seem to run your
other posted example:
./maxima-local
GCL (GNU Common Lisp) (2.6.1) Wed Dec 10 22:05:44 UTC 2003
Licensed under GNU Library General Public License
Dedicated to the memory of W. Schelter
Use (help) to get some basic information on how to use GCL.
Maxima 5.9.0 http://maxima.sourceforge.net
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
This is a development version of Maxima. The function bug_report()
provides bug reporting information.
(C1) load("/fix/g/camm/maxima/maxima-5.9.0/./share/numeric/qq");
Load failed for /fix/g/camm/maxima/maxima-5.9.0/./share/numeric/qq.lisp
-- an error. Quitting. To debug this try DEBUGMODE(TRUE);)
(C2)
Take care,
Valery Pipin <vpipin@irk.ru> writes:
> On Friday 12 December 2003 03:59, Camm Maguire wrote:
> <snipped>
> >2) If you can be a bit more specific about which tests, and even which
> > routines or subsystems, are behind the "1.1-2" times slower figure
> > you cite, it would be most helpful. Even try my latest gprof
> > patch, run a test which shows significant slowdown vs. CMUCL, and
> > profile it. I'd like to get this figure to about "0.8" or so :-).
> I have one example which shows that maxima -gcl wins factor 4 behind maxima
> -cmucl. I don't know wether it is a "real" effect or result of the amateur
> approach to the maxima codding. The example is about direct verification of
> the Cartan identity - the Lie derivative of the exterior form must commutate
> with exterior derivative of one. If you are interesting in I can send you the
> code. Actually I posted it oneday at the list but nobody was interested.
> Here is result of computation for the 3 -d and 4-th -order forms with cmucl
> #########
> (C6) DECSYM(q, 3, 0, [ANTI(ALL)], [])
> Evaluation took 0.04 seconds (0.04 elapsed) using 487.156 KB.
> (D6) DONE
> (C7) SHOW(q([I1, i2, i3]) @ i4 @L [v, i5] - q([I1, i2, i3]) @L [v, i4] @ i5)
> (D7) 0
> Evaluation took 16.68 seconds (16.99 elapsed) using 69557.297 KB.
> (C8) DECSYM(p, 4, 0, [ANTI(ALL)], [])
> Evaluation took 0.02 seconds (0.01 elapsed) using 144.500 KB.
> (D8) DONE
> (C9) SHOW(p([I1, i2, i3, i4]) @ i5 @L [v, i6]
>
> - p([I1, i2, i3, i4]) @L [v, i5] @
> i6)
> (D9) 0
> Evaluation took 139.25 seconds (149.45 elapsed) using 544732.039 KB.
> ##########
> And with gcl
> ###########
> (C6) DECSYM(q, 3, 0, [ANTI(ALL)], [])
> Evaluation took 0.00 seconds (00.40 elapsed)
> (D6) DONE
> (C7) SHOW(q([I1, i2, i3]) @ i4 @L [v, i5] - q([I1, i2, i3]) @L [v, i4] @ i5)
> (D7) 0
> Evaluation took 2.16 seconds (2.45 elapsed)
> (C8) DECSYM(p, 4, 0, [ANTI(ALL)], [])
> Evaluation took 0.00 seconds (0.00 elapsed)
> (D8) DONE
> (C9) SHOW(p([I1, i2, i3, i4]) @ i5 @L [v, i6]
>
> - p([I1, i2, i3, i4]) @L [v, i5] @
> i6)
> (D9) 0
> Evaluation took 29.93 seconds (30.70 elapsed)
> Evaluation took 32.28 seconds (33.51 elapsed)
> (D10) car_iden.demo
> ##############
>
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>
>
>
--
Camm Maguire camm@enhanced.com
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