Re: Greased Lightning: ATLAS

[Quentin Spencer]

John W. Eaton wrote:

> On 23-May-2005, Johan Kullstam wrote:
>
> | covers all the pentium-4 and pentium-M cpus.  Since the best stride
> | size of stepping through a vector and such are detail dependent, I am
> | not sure if there doesn't need to be some more options.
>
> I think this is a question of resources.  Is it reasonable to expect
> the volunteers of the Debian project to maintain a large collection of
> machines to build all the possible combinations of binary packages for
> ATLAS?
>
> In any case, I think you do have an option if you want the best
> performance for your hardware.  You can build ATLAS from source on
> your hardware, so it is tuned specially for you.  Yes, it will take
> some time, but that is likely the price you have to pay to get the
> best performance.
>  
I've been thinking about how to approach packaging ATLAS for Fedora, and 
I've been wondering: does anyone know what happens if you download the 
Debian sources for ATLAS and build them yourself? Do you end up with 
something that's customized for your machine, or a duplicate of the 
Debian binary that's designed to work well on a broader range of hardware?

-Quentin



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