[Sidefx-houdini-list] H12 and multiple GPU's

Ron Schab ron.schab at gmail.com
Mon Aug 29 22:11:46 EDT 2011


Hi Craig,


yes, actually you are right, H12 is utilizing OpenCL.
Apperently it still runs a lot quicker on NVIDIA cards though.

cheers
Ron



On Tue, Aug 30, 2011 at 12:03, Craig Hoffman <craigleehoffman at aol.com>wrote:

>
>
> I am interested in this too, but would assume that Houdini would use OpenCL
> and not CUDA so it would run on more machines and more OS's.
>
> -Craig
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: Ron Schab <ron.schab at gmail.com>
> To: sidefx-houdini-list <sidefx-houdini-list at sidefx.com>
> Sent: Sat, Aug 27, 2011 8:22 pm
> Subject: [Sidefx-houdini-list] H12 and multiple GPU's
>
>
> Saluton,
>
> One - well me at least - can't help but think about H12 and all of it's new
> GPU enhanced goodnesses.
>
> Especially since I am about to purchase a new laptop - well, it might have
> to be more of a menhir depending on the outcome of this thread - I am
> wondering how an NVIDIA SLI configuration will scale with H12.
>
> It seems like "recently" NVIDIA added support to threat Cuda calculations
> over multiple GPU's: http://www.slizone.com/object/sli_cuda_learn.html
>
> If so, would that be done automatically via NVIDIA drivers or is this
> application driven? (I keep reading contradicting answers to this)
> Has this been tested with H12 by any chance and if so what were the
> outcomes?
> Would an SLI setup of two gtx 580m's give me an equivilant of 4gb Vram
> enabling heavier sims and 768 Cuda cores all churning away on my sims like
> it was one GPU?
>
>
> thanks a lot for sharing any experiences in general and H12 related
>
>
> cheers
> Ron
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