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Re: Very slow filter.cc
From: |
akira |
Subject: |
Re: Very slow filter.cc |
Date: |
Tue, 18 Jan 2005 04:09:49 +0900 (JST) |
Thanks for your comment, David,
From: David Bateman <address@hidden>
>What was going to be my first step was to compile three different
>versions of octave.
>These being 2.1.50, 2.1.57 and 2.1.64, which correspond to the last
>three testing releases. The first before NDArray's were integrated, the
>second when NDArray's were integrated, but the filter function wasn't
>changed to use them and the last with the filter function converted to
>NDArray's. Getting the times of the test case you propose for these
>three build, would really confirm your problem.
I tried octave-2.1.50 and octave-2.1.57. It took the same time as
octave-2.1.64. It means NDarray support in both filter.cc and octave
is not the slowing factor, is it right?
Also, I carefully compared filter.cc of octave-2.1.50 and
octave-2.0.17. It seems there is no difference in filtering algorithm
itself. I realized that the slow filter.cc comes from more essential
part of octave-2.1.x.
_/_/_/ _/ _/ _/ _/_/ Akira NISHIMURA
_/ _/ _/ _/ | Dept. of Media and Cultural Studies
_/okyo _/_/niversity of _/nformation _/_/ciences address@hidden
http://www.rsch.tuis.ac.jp/~akira
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-------------------------------------------------------------
- Re: Very slow filter.cc, David Bateman, 2005/01/15
- Re: Very slow filter.cc,
akira <=
- Re: Very slow filter.cc, David Bateman, 2005/01/19
- Re: Very slow filter.cc, Miroslaw Kwasniak, 2005/01/22
- Re: Very slow filter.cc, John W. Eaton, 2005/01/22
- Re: Very slow filter.cc, Michael Creel, 2005/01/24
- Re: Very slow filter.cc, Miroslaw Kwasniak, 2005/01/24
- Re: Very slow filter.cc, David Bateman, 2005/01/24