about latest versions

[MHELHEFNY]

----- Original Message -----
From: "Michael Goffioul" <michael.goffioul at gmail.com>
To: "MHELHEFNY" <mhelhefny at gmail.com>
Cc: "Jaroslav Hajek" <highegg at gmail.com>; <bug at octave.org>
Sent: Friday, April 17, 2009 7:26 PM
Subject: Re: about latest versions


On Fri, Apr 17, 2009 at 2:48 PM, MHELHEFNY <mhelhefny at gmail.com> wrote:
>
> ----- Original Message -----
> From: "Jaroslav Hajek" <highegg at gmail.com>
> To: "MHELHEFNY" <mhelhefny at gmail.com>
> Cc: <bug at octave.org>
> Sent: Friday, April 17, 2009 3:02 PM
> Subject: Re: about latest versions
>
> RNDr. Jaroslav Hajek !!!
>
> You, have written :-
>> in this expression essentially all the work is done by BLAS/LAPACK libs.
>> maybe your two versions use different libraries.
>
> The problem is that both binary versions are prepared by "octave
forge",and
> since BLAS/LAPACK
> are the most important libraries for numerical calculations , how could it
> be done such that, the older is many times faster than the newer octave
> version..???

>What version of octave did you install? AFAIK, I didn't provided
>any 3.0.2 version compiled with VC++.

>If you installed 2 versions compiled with VC++, compare the version
>information of the files liblapack.dll (or lapack.dll) and libblas.dll
>(orr blas.dll) in <octave_root>\bin (right-click on the file and select
>"Properties").

>Michael.

for otave vesion 3.0.2 :-
i)blass.dll
file size 230 kb
created august 25,2008
ii)lapack.dll
file size 5.86  Mb
created august 25,2008
no version is given for both files

for octave version 3.0.3 :-
i)liblas.dll
file version 1.2
product version 1.0
file size is 351 kb
ii)liblapack.dll
file version 3.1.1
product version 3.1.1
file size 3.561 Mb
both fies created may 15 2008

N.B. I installed both from the windows binaries downloaded from the web, I
did'nt compile the source
myself

regards.
mhelhefny