Re: Debian/Ubuntu/Redhat which is better for heavy duty computations?

[David Wood <obsidian@panix.com>]

I think the distros that support amd64 will tend to be roughly the same in 
terms of FP performance. On x32, the only people I could see making a 
plausible argument to superiority would be the Gentoo guys, and even that, 
I'm sure people will argue. On amd64 I think there may be less of a 
distinction, since there is no issue of packagers building for 386 to be 
compatible with the last 5%. There's only one amd64 generation so far.

I do get a vague sense sometimes that the approach to compiler flags is 
different between distros that are concerned with servers vs. clients... 
probably nothing worth acting on, though.

On Fri, 1 Jul 2005, Alexandru Cabuz wrote:

> Hello,
>
> I was wondering if anybody knows if there exist benchmarks done to
> compare the performance for floating point computations (for example
> lapack) on opteron with the Debian, Ubuntu and Redhat AMD 64 ports.
>
> My research group recently got a couple of new multi-proc opteron
> machines and even though they shipped with redhat enterprise, being a
> fan of debian I was wondering if Debian AMD64 or Ubuntu might not be
> better?  Has anybody compared performance systematically?
>
> Alex.