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Cuda cores helping in rendering or encoding newb help?

post #1 of 7
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I have to do alot of this for a friend of mine who is working on a big project... do i need to use a particular program to take advantage of the cuda cores? or could i use them in any rendering/encoding application?

And could i use sli? or is it just limited to a individual gpu?

EDIT: bummer! so it will be either the gpu that does the work or the cpu alone? i was hoping there was a way for both of them to work on an application at the same time...
Edited by badatgames18 - 5/9/11 at 4:44pm
Galbus
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Galbus
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post #2 of 7
Some programs use it. For rendering, I know 3DS Max does, and when I hit reply, I had remembered a video encoder that did, but I can't atm...

So yes, only certain programs make use of CUDA.
The Obelisk
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The Obelisk
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post #3 of 7
You can also use it as a resource for some encoding software.
post #4 of 7
Cuda cores, dont offer superior quality to encoding.

Saw a few comparisions of encoding in H264, using cuda and just regular cores.

The difference was detectable. Cuda encoding is quick, but you end up with less quality than if you were to use a cpu dependent program such as handbrake or megui.

To answer you question, if i am not mistaken cuda only uses the gpu, most programs out there that offer cuda encoding doesn't offer the coding to offload the task to cpu + gpu. Atleast not yet.
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post #5 of 7
The idea of using Cuda cores as a processor for other tasks came from people who lacked enough cycles from their processor in something else, I've seen people using Cuda cores as an actual method of decoding HD videos b/c their processor was so slow it couldn't decode 720p videos properly.

And when I say decode I mean simply watching videos.

Which in itself is odd as even a 7 year old Athlon X2 4000 can decode 720p fine and the likelihood you'd have a card with many Cuda cores in something that old is low. Though the single core A64 4000 and such procs couldn't decode 720 properly.

But it makes sense for 1080p with processors that old.

But I don't doubt there's people out there running P4's with a 7-9 series card. So they're trying whatever they can to get a performance increase.

I was in this position many years ago.
post #6 of 7
Badaboom (video encoder) uses it, but the product isn't so great.
asdf
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asdf
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post #7 of 7
I also looked around for good GPU video encoding but never found anything of good enough quality. Until I cam across Elgato.

For encoding videos i have a Elgato USB Turbo 264.HD on my Mac. A simple little USB stick. Nothing fancy but it has a dedicated 264 encoding hardware. I use it all the time, and I was surprised at how fast it was.

http://www.elgato.com/elgato/int/mai...oduct1.en.html

If you want fast encoding for. PC then look at Matrox, they have a PCI card that performs event better.

http://www.matrox.com/video/en/products/pc/compresshd/
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