[Sidefx-houdini-list] Mantra and maximum processors

Erika Salatiello tictacer at hotmail.com
Thu Dec 10 11:24:32 EST 2009


Don't forget the bucket size!  ;)

Different bucket sizes with different processor numbers will make a difference. 

Erika

> Date: Mon, 23 Nov 2009 23:27:07 -0800
> From: pbowmar at gmail.com
> To: sidefx-houdini-list at sidefx.com
> Subject: Re: [Sidefx-houdini-list] Mantra and maximum processors
> 
> Mostly a render TD :)
> 
> 2009/11/23 Carsten Kolve <carsten at kolve.com>:
> > Are you doing stuff to automate the process of figuring out the
> > optimal configuration, or is this usually a manual job for the lighter
> > or wrangler? I'm thinking of something like rendering a small version
> > of the some representative frames for the seq beforehand with
> > different configuration to figure out optimal settings for the real
> > thing ...
> >
> > ?
> >
> > Cheers,
> > Carsten
> >
> >
> > On Tue, Nov 24, 2009 at 1:32 AM, David Johnson <daveinengland at gmail.com> wrote:
> >> It's also RAM dependent, both in what's required for your scene and what you
> >> have available. As soon as it's swapping, you're dead.
> >>
> >> Dave
> >>
> >> On Sun, Nov 22, 2009 at 8:23 PM, Peter Bowmar <pbowmar at gmail.com> wrote:
> >>
> >>> It's quite scene dependent. With heavy raytracing (PBR especially) it
> >>> scales well, but for other things like straight micro poly, sometimes
> >>> not so much.
> >>>
> >>> We've found 4 threads as the Sweet Spot for most renders, so on an 8
> >>> core machine we would run 2 Mantras each doing 4 threads to most
> >>> efficiently use that machine.
> >>>
> >>> Like I said though, it varies wildly, so you pretty much have to tune
> >>> each render for max efficiency. No different that PRman or Mental Ray
> >>> though, they both need tuning as well of course.
> >>>
> >>> Cheers,
> >>>
> >>> Peter B
> >>>
> >>> 2009/11/22 Carsten Kolve <carsten at kolve.com>:
> >>> > out of interest, does anyone have experience how well mantra scales
> >>> > performance-wise when using multiple threads?
> >>> >
> >>> > cheers,
> >>> > carsten
> >>> >
> >>> >
> >>> >
> >>> > On Fri, Nov 20, 2009 at 10:24 PM, Szymon Kapeniak
> >>> > <szymon.kapeniak at gmail.com> wrote:
> >>> >> quote from help:
> >>> >> "-j val Set the number of threads (-j0 uses maximum threads)"
> >>> >>
> >>> >>--
> >>> > // carsten kolve - www.kolve.com
> >>> > _______________________________________________
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> >>> > Sidefx-houdini-list at sidefx.com
> >>> > https://lists.sidefx.com:443/mailman/listinfo/sidefx-houdini-list
> >>> >
> >>> _______________________________________________
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> >
> >
> >
> > --
> > // carsten kolve - www.kolve.com
> > _______________________________________________
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> > Sidefx-houdini-list at sidefx.com
> > https://lists.sidefx.com:443/mailman/listinfo/sidefx-houdini-list
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