Re: [Help-gsl] Speed problem

[C J Kenneth Tan -- OptimaNumerics <cjtan at OptimaNumerics dot com>]

Paolo,

What are the operations/functions/routines that you are using?  How
are you measuring performance?  Which platform is this?  


Kenneth Tan
--------------------------------------------------------------------------
News: OptimaNumerics Libraries: Increase Performance on Solaris 10
--------------------------------------------------------------------------
C. J. Kenneth Tan, Ph.D.
OptimaNumerics Ltd.                   Telephone: +44 798 941 7838
E-mail: cjtan@OptimaNumerics.com      Telephone: +44 871 504 3328
Web: http://www.OptimaNumerics.com    Facsimile: +44 289 066 3015 
--------------------------------------------------------------------------


On 2005-05-25 23:09 +0200 Jochen Küpper (jochen@fhi-berlin.mpg.de) wrote:

> Date: Wed, 25 May 2005 23:09:27 +0200
> From: "[iso-8859-1] Jochen Küpper" <jochen@fhi-berlin.mpg.de>
> To: gsl-discuss@sources.redhat.com
> Subject: Re: [Help-gsl] Speed problem
> 
> Paolo Zavarise <physics@paolo.zavarise.name> writes:
> 
> > GSL 1.6 compiled by myself is five/ten time slower than GSL included in 
> > ubuntu (1.5.90, same one I think). I've compiled with configure/make, no 
> > options, and installed in a non-default dir.
> 
> Did you compile with optimizations? If not, try setting CFLAGS, i.e. 
> ,----
> | export CFLAGS="-g -O2 -pipe -Wall"
> `----
> Best would be to look at the GCC manual...
> 
> Greetings,
> Jochen
> -- 
> Einigkeit und Recht und Freiheit                http://www.Jochen-Kuepper.de
>     Liberté, Égalité, Fraternité                GnuPG key: CC1B0B4D
>         (Part 3 you find in my messages before fall 2003.)
>