POV-Ray : Newsgroups : povray.windows : Advantages Of Optimized SSE 4.X compile? Server Time
26 Feb 2024 09:12:54 EST (-0500)
  Advantages Of Optimized SSE 4.X compile? (Message 1 to 4 of 4)  
From: rgathright
Subject: Advantages Of Optimized SSE 4.X compile?
Date: 19 Oct 2010 21:10:00
Message: <web.4cbe3fdfafcd80dd1c5ddb040@news.povray.org>
Hello,
I am currently rendering a 1080P mandelbulb animation with a small computer
cluster of AMD 1090T, AMD 965 and a few Intel Core 2 Duo processors.  The
production rate is about 25 frames per day total and I would like to find a way
to decrease render times.

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?

Thanks!

P.S. Of course, I would appreciate any Windows binaries you could send my way.
The work is being to submit to YouTube and I have no commercial interests in
this project.


Post a reply to this message

From: Christian Froeschlin
Subject: Re: Advantages Of Optimized SSE 4.X compile?
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?


Post a reply to this message

From: rgathright
Subject: Re: Advantages Of Optimized SSE 4.X compile?
Date: 21 Oct 2010 09:40:00
Message: <web.4cc041b2e5cd391eea30b3a0@news.povray.org>
Christian Froeschlin <chr### [at] chrfrde> wrote:
> I assume you are already using the 3.7 beta SSE2 build?

Yes, I am on the latest SSE2 build.


Post a reply to this message

From: rgathright
Subject: Re: Advantages Of Optimized SSE 4.X compile?
Date: 28 Oct 2010 12:35:00
Message: <web.4cc9a572e5cd391eea30b3a0@news.povray.org>
"rgathright" <rga### [at] gmailcom> wrote:
> Christian Froeschlin <chr### [at] chrfrde> wrote:
> > I assume you are already using the 3.7 beta SSE2 build?
>
> Yes, I am on the latest SSE2 build.

As a followup, I have had success using a 64 bit build on a Windows Server 2003
64bit box.  I reduced tracing times from approximately 1 hour 30 minutes to 1
hour 05 minutes.


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.