Maxima 5.16.3 release --- enourmous slowdown of gf-package
Subject: Maxima 5.16.3 release --- enourmous slowdown of gf-package
From: Robert Dodier
Date: Tue, 26 Aug 2008 20:15:55 -0600
On 8/26/08, Oliver Kullmann <O.Kullmann at swansea.ac.uk> wrote:
> Basically every operation. But let's take perhaps the basic
> example gf_set; first with 5.15.0:
>
> field : [2,8,x^8+x^4+x^3+x+1];
> apply(gf_set,field);
> Evaluation took 0.1280 seconds (0.1272 elapsed) using 840.867 KB.
> (%o3) true
>
> and now in 5.16.3:
>
> apply(gf_set,field);
> Evaluation took 4.7883 seconds (4.9496 elapsed) using 42.714 MB.
> (%o58) true
Oliver, I can't reproduce this problem. I have downloaded the previous
versions of gf.mac from cvs.
http://maxima.cvs.sourceforge.net/maxima/maxima/share/contrib/gf
I find that the above example takes about the same time in
versions 1.3 and 1.2 (corresponding to Maxima 5.16 and 5.15) and
somewhat longer in v1.1.
However I am running all gf versions in Maxima 5.16.2.
So it is possible that the origin of the slowdown is in some other
part of Maxima which is called from gf.
I have previous versions of Maxima installed on another machine
which I can check tomorrow.
best
Robert Dodier