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From: Chris Cason
Subject: 3.7 Linux beta.
Date: 28 Jul 2006 21:18:15
Message: <44cab757$1@news.povray.org>
Folks,

There is now a 3.7 linux beta (x86 only for now, sorry) available via the
beta download page (http://www.povray.org/beta/).

Followups to the beta group please.

-- Chris


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From: Jim Henderson
Subject: Re: 3.7 Linux beta.
Date: 28 Jul 2006 21:29:30
Message: <pan.2006.07.29.01.29.25.816708@nospam.com>
On Sat, 29 Jul 2006 11:18:14 +1000, Chris Cason wrote:

> There is now a 3.7 linux beta (x86 only for now, sorry) available via the
> beta download page (http://www.povray.org/beta/).

Sweet, thanks, Chris.  Downloading now - wish I still had the DP system I
had a year ago (had to give it back to work), but I'll play on my SUSE
10.1 system. :-)

Jim


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From: scouti
Subject: Re: 3.7 Linux beta.
Date: 9 Aug 2006 08:00:01
Message: <web.44d9cdc613602644c9f9a50c0@news.povray.org>
Jim Henderson <nos### [at] nospamcom> wrote:
> On Sat, 29 Jul 2006 11:18:14 +1000, Chris Cason wrote:
>
> > There is now a 3.7 linux beta (x86 only for now, sorry) available via the
> > beta download page (http://www.povray.org/beta/).
>
> Sweet, thanks, Chris.  Downloading now - wish I still had the DP system I
> had a year ago (had to give it back to work), but I'll play on my SUSE
> 10.1 system. :-)
>
> Jim

hi, i know this is a little bit out of topic but i have to run a benchmark
on a linux system with povray under a dual-core system. I am currently
using povray-3.7 beta14 with suse linux 10.1. how can i use two cores? is
there a parameter?
thanks for your help!


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From: Jim Henderson
Subject: Re: 3.7 Linux beta.
Date: 9 Aug 2006 11:34:36
Message: <pan.2006.08.09.15.34.33.844660@nospam.com>
On Wed, 09 Aug 2006 07:57:58 -0400, scouti wrote:

> hi, i know this is a little bit out of topic but i have to run a benchmark
> on a linux system with povray under a dual-core system. I am currently
> using povray-3.7 beta14 with suse linux 10.1. how can i use two cores? is
> there a parameter?
> thanks for your help!

I thought my system only had one core, but in the test renders I've done
so far, it indicates two threads are being used.

Chris, does that indicate to you that my system is in fact dual core?

Jim


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From: Warp
Subject: Re: 3.7 Linux beta.
Date: 9 Aug 2006 15:51:26
Message: <44da3cbe@news.povray.org>
scouti <nomail@nomail> wrote:
> how can i use two cores?

  POV-Ray should automatically render in multithreaded mode without you
having to specify anything. Are you not seeing a considerable increase
in rendering speed (which would suggest it's rendering in one single
thread)?

-- 
                                                          - Warp


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From: Warp
Subject: Re: 3.7 Linux beta.
Date: 9 Aug 2006 15:52:12
Message: <44da3ceb@news.povray.org>
Jim Henderson <nos### [at] nospamcom> wrote:
> Chris, does that indicate to you that my system is in fact dual core?

  No, it just indicates that POV-Ray 3.7 by default uses cores*2 threads
to render.

-- 
                                                          - Warp


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From: Jim Henderson
Subject: Re: 3.7 Linux beta.
Date: 9 Aug 2006 16:50:45
Message: <pan.2006.08.09.20.50.39.989289@nospam.com>
On Wed, 09 Aug 2006 15:52:12 -0400, Warp wrote:

> Jim Henderson <nos### [at] nospamcom> wrote:
>> Chris, does that indicate to you that my system is in fact dual core?
> 
>   No, it just indicates that POV-Ray 3.7 by default uses cores*2 threads
> to render.

Great - thanks.  I wasn't aware that 3.7 used multiple threads per
processor or core; 3.6 didn't do that, did it?

Jim


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From: Warp
Subject: Re: 3.7 Linux beta.
Date: 9 Aug 2006 17:04:27
Message: <44da4dda@news.povray.org>
Jim Henderson <nos### [at] nospamcom> wrote:
> Great - thanks.  I wasn't aware that 3.7 used multiple threads per
> processor or core; 3.6 didn't do that, did it?

  That's the whole idea in 3.7.

-- 
                                                          - Warp


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From: Jim Henderson
Subject: Re: 3.7 Linux beta.
Date: 9 Aug 2006 17:12:09
Message: <pan.2006.08.09.21.12.03.871339@nospam.com>
On Wed, 09 Aug 2006 17:04:27 -0400, Warp wrote:

> Jim Henderson <nos### [at] nospamcom> wrote:
>> Great - thanks.  I wasn't aware that 3.7 used multiple threads per
>> processor or core; 3.6 didn't do that, did it?
> 
>   That's the whole idea in 3.7.

That's what I thought, just wanted to confirm.  Thanks for that. :-)

Jim


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From: Nicolas Calimet
Subject: Re: 3.7 Linux beta.
Date: 10 Aug 2006 05:01:27
Message: <44daf5e7$1@news.povray.org>
> POV-Ray 3.7 by default uses cores*2 threads
> to render.

	No, the actual default is 2 threads regardless of the number
of cpus or cores.  Use the +wt command-line option or WorkThreads
INI setting to change this figure.

	- NC


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