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What is GPUDirect?

post #1 of 4
Thread Starter 
Greetings , the title said it all

what is GPUDirect , and is there any actual benefits form it , or its now dead like the PhysX
i`m noob in nVidia (and i have bad English) so dont bother your self wit complicated answers

thanks
    
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post #2 of 4
i'm not sure how useful it actually is, but it is meant for the quadro and tesla cards.

basically it makes 3rd party devices consume less resources when accessing or writing to CUDA. it also has a bunch of peer-to-peer functionality.

again, this is its purpose. not sure how effective it actually is... there's a picture that shows how it works.

http://developer.download.nvidia.com/assets/cuda/images/GPUDirect_comp.JPG
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post #3 of 4
Thread Starter 
thanks a lot , very helpful pic

but the real question is it good or just like PhysX
    
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post #4 of 4
although i haven't used it personally, it should be useful.

it should reduce latency, since it eliminates the cpu overhead.
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