POV-Ray : Newsgroups : povray.windows : Advantages Of Optimized SSE 4.X compile? : Re: Advantages Of Optimized SSE 4.X compile? Server Time
9 Nov 2024 11:06:14 EST (-0500)
  Re: Advantages Of Optimized SSE 4.X compile?  
From: Christian Froeschlin
Date: 20 Oct 2010 18:19:09
Message: <4cbf6add@news.povray.org>
rgathright wrote:

> What kind of gains would I get if I used the Intel Compiler to create an SSE 4.X
> binary specific for each of my processors?

I have no personal experience but was curious enough to read up
a bit on SSE4 now. On one extreme, a DivX encoding algorithm which
was specially optimized with SSE4 using special instructions dedicated
for just that purpose gave a speed increase of about 40%. On the other
hand, a povray compile of 3.6 in 2007 using Intel compiler 10 was
reported to be 16% slower than an SSE3 version Of course, the
SSE4 support of the compiler should be better now. But I don't
think you'll be getting more than a few percent speedup.

I assume you are already using the 3.7 beta SSE2 build?


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