Maxima 5.16.3 release --- enourmous slowdown of gf-package
Subject: Maxima 5.16.3 release --- enourmous slowdown of gf-package
From: Oliver Kullmann
Date: Mon, 25 Aug 2008 16:41:22 +0100
Hi,
5.16.3 passed now all my tests, but an enourmous
slowdown happened with package gf, which renders
it unusable:
It seems that most operations are affected, with
a slowdown-factor between 4 and 60 (the latter for
gf_findprim); only gf_matmul and gf_matinv seem
not affected.
So for example before a single Rijndael-sbox operation
took 0.2 s (which was already quite slow), while it now takes
around 18 s.
I didn't write the functions (applying gf) myself, but I recall
that it used to be that excessively slow, but then a switch
was introduced at some time, which made it bearable, while
now perhaps by some mistake it was reverted to the old
behaviour?
Oliver
On Sun, Aug 24, 2008 at 03:02:52PM -0600, Robert Dodier wrote:
> Hello,
>
> I have tagged Maxima 5.16.3 in cvs as version-5_16_3 and generated
> tar.gz, src.rpm, and rpms and posted them to the SF file manager.
> http://sourceforge.net/project/showfiles.php?group_id=4933
>
> This release should fix some minor issues.
> (1) fix bug in is_isomorphic in graphs package
> (2) fix share test suite error caused by missing rtest_interpol
> (3) some other minor bug fixes
>
> If there aren't too many complaints about this version,
> it will become the first advertised 5.16 release.
>
> HTH
>
> Robert Dodier
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