POV-Ray : Newsgroups : povray.windows : Dual-Processor Support under NT4.0 SP3??? Server Time
24 Nov 2024 23:57:56 EST (-0500)
  Dual-Processor Support under NT4.0 SP3??? (Message 1 to 2 of 2)  
From: Peter Teuns
Subject: Dual-Processor Support under NT4.0 SP3???
Date: 26 Feb 1998 08:09:49
Message: <34f56a53.0@news.povray.org>
Hi everybody,

    when rendering with Povray under NT on a dual-processor machine and
watching the CPU-performance, I found out, that the total CPU-usage does not
exceed 50%. Anyway, both CPUs are in use, but seem not to work at the same
time but alternating (looks funny :) ). Is there a patch for POVRay to use
both CPUs at full power (I guess it would improve the rendering speed
drastically), or did I misconfigure something on my NT-System?

    Every help is appreciated!!!

        Best regards from Cologne, Pete.


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From: Ken Cecka
Subject: Re: Dual-Processor Support under NT4.0 SP3???
Date: 2 Mar 1998 11:50:22
Message: <34fae34f.0@news.povray.org>
Povray isn't threaded so it can only use one processor at a time.  As of
yet, I haven't heard of any povray patches which will take advantage of
multiple processors on Windows/Dos systems.  You have a couple of options
though.  If you have the space and the interest, you could install Linux or
another flavor of unix and use one of the modified versions for unix.  The
other, easier option, is to render your images or animations in two parts.
Start up two instances of povray, and each instance should run on each
processor.  Have each render one half of the image and then stick it
together with paintshop pro or something.

Ken

Peter Teuns wrote in message <34f56a53.0@news.povray.org>...
>Hi everybody,
>
>    when rendering with Povray under NT on a dual-processor machine and
>watching the CPU-performance, I found out, that the total CPU-usage does
not
>exceed 50%. Anyway, both CPUs are in use, but seem not to work at the same
>time but alternating (looks funny :) ). Is there a patch for POVRay to use
>both CPUs at full power (I guess it would improve the rendering speed
>drastically), or did I misconfigure something on my NT-System?
>
>    Every help is appreciated!!!
>
>        Best regards from Cologne, Pete.
>
>


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