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Re: Octave vs Scilab


From: Tatsuro MATSUOKA
Subject: Re: Octave vs Scilab
Date: Thu, 7 Oct 2010 11:40:08 +0900 (JST)

Hello

It is difficult to build octave on windows with MSVC since the MSVC version 
octave has been
disappeared from the unfortunate license issue. Build tools specially prepared 
for MSVC were also
deleted from the octave-forge web site.  

Perhaps for Intel C for windows, it is not also easy to use to build octave on 
windows. 

BTW  I have octave-3.0.x both on MinGW and MSVC, the speed of octave MInGW 
version and MSVC version
are not so different as far as I remember.

I have changed the N for2000 to 500 to save time (my machine is old (HT 
pentimum 3.4 GHz))

Octave-3.0.3 msvc
octave:3> xmpl
N =  500
 10.139

Octave-3.0.5 MinGW
octave.exe:3> xmpl
N =  500
 7.7969  

The versions are not the same so that I cannot say that the MinGW is faster 
than that of MSVC.

I found a benchmark for 
 
http://www.pubbs.net/200811/ruby/27246-some-benchmarks-with-mingw-jruby-msvc.html
(Sorry it is rather old. As far as I observed, the speeds depend on kinds of 
tests.)

BTW, the results of the same test for the octave-3.2.4 MinGW on the sourceforge 
site and
octave-3.3.52+ build myself using MinGW complier are shown the below
As references,
octave:2> xmpl
N =  500
 5.2188

octave:2> xmpl
N =  500
 3.9531

The speed of octave interpreter surely has improved with increasing the octave 
version.

Regards

Tatsuro


There are version difference so that it is not fair to compare the speed 
strictly but I can say that
the binaries generated by the MinGW complier has lesser performance compared to 
that of MSVC
--- Judd Storrs  wrote:

> On Wed, Oct 6, 2010 at 6:29 PM, Fotios Kasolis <address@hidden> wrote:
> > What makes loops slower in one interpreter compared to another?
> 
> Since the difference seems to be observed on Windows, I'll posit
> that the build method probably is very influential. Do you happen to
> know how SciLab is compiled? Possibly they use Visual Studio or the
> Intel compilers instead of MinGW.
> 
> 
> --judd
> 



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