OpenMP GSL

OpenMP GSL

[Jochen Küpper]

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Hi,

I was wondering whether there are any plans for the parallelization of  
GSL?

For example, I found this article on "Parallelization of GSL:  
Architecture, Interfaces, and Programming Models" form 2004:
https://commerce.metapress.com/content/jtp50vjc1e3gwane/resource-secured/?target=fulltext.pdf&sid=medqeqrui2yyng45okahx345&sh=www.springerlink.com

I also found a message by Brian Gough from 2002 stating that it would  
not fit the design of GSL (Message-ID:  
<15656.48877.30970.694792@debian>).

Would there be any objections if one started to a few include OpenMP  
directives in the code? They would not at all interfere with normal  
usage of GSL in single-threaded calculations. If they should even be  
optional for the use of GSL in OpenMP calculations, they could be  
flagged by a run-time or compile-time (preferred for  performance)  
switch.

Thoughts?

Greetings,
Jochen
-- 
Einigkeit und Recht und Freiheit                http://www.Jochen-Kuepper.de
     Liberté, Égalité, Fraternité                GnuPG key: CC1B0B4D
         Sex, drugs and rock-n-roll



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Re: OpenMP GSL

[Andrew W. Steiner]

Exciting thought, but I'd lean towards a separate package. In any case
"parallelization of GSL" is kind of a loaded term. It's not clear to
me that many of the routines presented in GSL are easily
"parallelizable" per se?

On Mon, Apr 14, 2008 at 2:46 PM, Jochen Küpper
<kuepper.jochen@googlemail.com> wrote:
> Hi,
>
>  I was wondering whether there are any plans for the parallelization of GSL?
>
>  For example, I found this article on "Parallelization of GSL: Architecture,
> Interfaces, and Programming Models" form 2004:
>
> https://commerce.metapress.com/content/jtp50vjc1e3gwane/resource-secured/?target=fulltext.pdf&sid=medqeqrui2yyng45okahx345&sh=www.springerlink.com
>
>  I also found a message by Brian Gough from 2002 stating that it would not
> fit the design of GSL (Message-ID: <15656.48877.30970.694792@debian>).
>
>  Would there be any objections if one started to a few include OpenMP
> directives in the code? They would not at all interfere with normal usage of
> GSL in single-threaded calculations. If they should even be optional for the
> use of GSL in OpenMP calculations, they could be flagged by a run-time or
> compile-time (preferred for  performance) switch.
>
>  Thoughts?
>
>  Greetings,
>  Jochen
>  --
>  Einigkeit und Recht und Freiheit
> http://www.Jochen-Kuepper.de
>     Liberté, Égalité, Fraternité                GnuPG key: CC1B0B4D
>         Sex, drugs and rock-n-roll
>
>
>

Re: OpenMP GSL

[Brian Gough]

At Mon, 14 Apr 2008 20:46:14 +0200,
Jochen Küpper wrote:
> Would there be any objections if one started to a few include OpenMP  
> directives in the code? 

I would certainly be interested to try any examples you can come up
with and see what the benefits are.