The answer is no. Although you can run two copies of POV at the same
time and one process gets put on each CPU and there is no performance
decrease. I recently had a Dual pII 300 here with 256 megs and I ran a
scene file and it took 4 mins. When I started a second copy of POV
running each of the files finished in 4 mins.
Timothy A. Grubb
Scott Anderson wrote:
> I was wondering whether POV uses multi CPU's on a OS like NT?
From: David Tucker
Subject: Re: POV ON MULTI CPU
Date: 23 Jan 1998 13:37:33
Message: <34C8E36D.6AC8@altatech.com>
Tim Grubb wrote:
> > The answer is no. Although you can run two copies of POV at the same> time and one process gets put on each CPU and there is no performance> decrease. I recently had a Dual pII 300 here with 256 megs and I ran a> scene file and it took 4 mins. When I started a second copy of POV> running each of the files finished in 4 mins.> > Timothy A. Grubb> > Scott Anderson wrote:> > > I was wondering whether POV uses multi CPU's on a OS like NT?
This isn't quite right. It is possible to run pvmpov on SMP systems
like SGI's and multipule threads on each cpu. However, I have found pvm
to be a little buggy under NT.
dave
In article <34c54841.0@news.povray.org>, sta### [at] powercomau says...
> I was wondering whether POV uses multi CPU's on a OS like NT?>
I have a 2-CPU NT box, and POVWIN3 doesn't use multiple threads to
render.
What I do manage to do is this:
* run one copy of POV as a tray icon, doing a batch of files.
* run a second copy for interactive work.
or, when doing a MASSIVE file, run two copies and split the scene by
rows. Actually, use every machine I can get my hands on and run a few
rows on all of them.
--John
From: Justin Rogers
Subject: Re: POV ON MULTI CPU
Date: 8 Jul 1998 05:04:14
Message: <35a327fe.0@news.povray.org>
The main thing here would be to examine the source code and generate a
multithreaded version of the code... The speed would increase by having
multiple threads running anyway even on single processor machines.
And after examining the source code for POV-Ray this could probably be
accomplished in a week or two... I have to look more closely into the
relationship between how the rays are shot, but I may be able to roll out a
version that will render multiple frames at a time. So though you may not
be able to get single frames running any faster at least you'll be able to
render more than one frame at a time.
--
_____________________________________
Justin Rogers, CEO DigiTec Web Consultants
Personal Programmer and Web Consultant
Email: dig### [at] 3nnet
Tim Grubb wrote in message <34C6F034.A7FD492E@neta.com>...
>The answer is no. Although you can run two copies of POV at the same>time and one process gets put on each CPU and there is no performance>decrease. I recently had a Dual pII 300 here with 256 megs and I ran a>scene file and it took 4 mins. When I started a second copy of POV>running each of the files finished in 4 mins.>>Timothy A. Grubb>>Scott Anderson wrote:>>> I was wondering whether POV uses multi CPU's on a OS like NT?>>>>
com