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Re: benchmark octave with atlas and vecLib
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From: |
Per Persson |
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Subject: |
Re: benchmark octave with atlas and vecLib |
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Date: |
Thu, 6 Nov 2003 00:32:55 +0100 |
On Wednesday, November 5, 2003, at 11:12 PM, Dmitri A. Sergatskov wrote:
Gavin Jin wrote:
VecLib is indeed a library that is optimized for ALTIVEC.
True...
It is my understanding that ALTIVEC is a single precision engine.
Both matlab and octave use double precision calculations almost
everywhere. So I would expect a marginal contribution of ALTIVEC
to the most calculations.
...true ;-)
Apple's vecLib _is_ ATLAS (and a few more things) and uses altivec
processing where suitable. Also vecLib is higly tuned for different
CPU's/machine architectures. I'd be _very_ interested in the score for
a G5 machine, which has two FP-units per CPU (as well as altivec).
Anybody running octave 2.1.50 on a G5???
/Per
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