D vs VM-based platforms

Benji Smith dlanguage at benjismith.net
Tue May 1 17:45:15 PDT 2007


Daniel Keep wrote:
> Sorry; yes, you're right: it's for a single dot product.
> 
> I'm surprised at this because of the sheer number of articles I ran
> across touting "faster" dot product functions using SSE.  I have a
> feeling these people have never bothered to actually *benchmark* their
> "faster" functions :P
> 
> 	-- Daniel


I'm also assuming that's for some low-dimensionality vector? I'd 
likewise guess that there's some sweet spot where dot product 
calculation is faster with SSE, even for a single pair of vectors, if 
the vectors are of sufficient dimensionality.

--benji



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