[Sidefx-houdini-list] open cl and quadro on h12

Michael O'Brien mobrien at pixar.com
Thu Aug 16 12:36:21 EDT 2012


Hola~

I don't really know. It's a step along the path towards refining the sim, so
we usually up the res, switch to CPU, and push go again.

The simple tests looked like they were the same tho.

MO

> -----Original Message-----
> From: sidefx-houdini-list-bounces at sidefx.com [mailto:sidefx-houdini-list-
> bounces at sidefx.com] On Behalf Of Alvaro Castaneda
> Sent: Thursday, August 16, 2012 8:29 AM
> To: sidefx-houdini-list at sidefx.com
> Subject: Re: [Sidefx-houdini-list] open cl and quadro on h12
> 
> Hey Michael,
> are there any differences when switching?, like the sim been different
cause
> is a different code, I guess the question is, is there any noticeable
> difference?
> 
> Cheers!!
> 
> 
> On Thu, Aug 16, 2012 at 9:26 AM, Michael O'Brien <mobrien at pixar.com>
> wrote:
> 
> > Hola~
> >
> > That's in line with what we are seeing. We try to stay on the GPU for
> > testing, but then go to the CPU for final tweaking.
> >
> > MO
> >
> > > -----Original Message-----
> > > From: sidefx-houdini-list-bounces at sidefx.com [mailto:
> > sidefx-houdini-list-
> > > bounces at sidefx.com] On Behalf Of Nick van Zutphen
> > > Sent: Thursday, August 16, 2012 2:34 AM
> > > To: sidefx-houdini-list at sidefx.com
> > > Subject: Re: [Sidefx-houdini-list] open cl and quadro on h12
> > >
> > > It depends, the computations on the gpu are limited to the VRAM on
> > > the videocard. Compared to your CPU and ram that is quite a
limitation.
> > > On my machine the 580gtx 3gb is 30% faster than when I compute a
> > > similar sim on the CPU. How ever due to the VRAM limitation I can't
> > > go beyond about 256x256 voxels on the GPU.
> > >
> > > Cheers,
> > > Nick
> > >
> > > On 16 aug. 2012, at 10:44, zoran arizanovic
> > > <zoran.arizanovic at gmail.com>
> > > wrote:
> > >
> > > > hi
> > > > i have a new dual xeon , 96 gb ram machine now built for sim work
> > > > i just need to use it to its maximum and was wondering if this cl
> > > > would speed it up
> > > >
> > > > did anyone have any luck with running cl switch ?
> > > > I have quadro 4000 would this be ok for cl?they say it has fermi
arch.
> > > > but still when i switch it on i get error what version of drivers
> > > > are you using for this?
> > > >
> > > > i have a new dual xeon , 96 gb ram machine now built for sim work
> > > > i just need to use it to its maximum and was wondering if this cl
> > > > would speed it up
> > > >
> > > > --
> > > > Zoran Arizanovic
> > > > vfx reel : http://vimeo.com/28605448
> > > > http://www.imdb.com/name/nm2902303/
> > > > _______________________________________________
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