Running the openCL list linked below my 4870 does not show up, though it works with smallLux an I thought it was working with earlier versions of QC. Is the OpenCL Context info patch reliable?
Roger Jones On Nov 22, 2010, at 2:00 AM, JeanMarc Noel wrote: > Hi, > As speckert i'am also confused regarding the choice of a graphic card with > decent openCL support in QC. > I asked for a refund for my ATI 5870. I recently read the ATI 5770 doesn't > support double precision floating point. > It looks like the best candidate with mature drivers were the ATI 4870 and > the Nvidia GTX 285 but there are no longer available in the Apple Store. > > What is actually the recommanded graphic card for MacPro with decent OpenCL > support for development in Quartz Composer ? > > > Thanks for any help, > > JeanMarc Noel > > > > Le 22 nov. 2010 à 04:56, speckert a écrit : > >> Christopher, >> >> I'm confused. >> >> I was definitely under the impression that if I bought a Mac Pro, Westmere, >> and the high end graphics card, 5870, that I would be able to use OpenCL in >> the development tools, in particular in Quartz Composer. >> >> Do I need to buy an Nvidia card to use OpenCL? >> >> Does QC support the 5870 for OpenCL development? >> >> These should not be complicated questions or answers. Either it does or it >> does not. >> >> Which is it? >> >> -- Glen >> >> On Nov 18, 2010, at 10:18 AM, Christopher Wright wrote: >> >>> Hi JeanMarc :) >>> >>>> This page is listing the cards that support OpenCl with Snow Leopard : >>>> Apple - Mac OS X Snow Leopard - Technical specifications >>>> >>>> But it looks like it is not really up-to-date or perhaps optimistic. >>> >>> It's potentially correct/up-to-date, but it may not be enough for QC. QC >>> requires some additional CL features, and it might be those extensions that >>> the card doesn't support. >>> >>> (Think of it like you would multisampling, or floating point textures in >>> OpenGL -- not all GPUs support multisampling or floating point textures >>> because they're extensions, so if your program absolutely _required_ those >>> features, it just wouldn't work on that GPU. The GPU would still "support >>> OpenGL", just not some of the advanced stuff you need). >>> >>> -- >>> Christopher Wright >>> [email protected] >>> >>> >>> >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Quartzcomposer-dev mailing list ([email protected]) >>> Help/Unsubscribe/Update your Subscription: >>> http://lists.apple.com/mailman/options/quartzcomposer-dev/speckert%40specktech.com >>> >>> This email sent to [email protected] >> >> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/quartzcomposer-dev/jm%40yanomanow.com >> >> This email sent to [email protected] > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/quartzcomposer-dev/rogerjones%40mac.com > > This email sent to [email protected]
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