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Old January 20, 2010, 07:35 PM
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Well, the mystery deepens.......

Adjusting the slider does indeed change the processor usage, but it also seems tied to the gpu as PPD dropped like a rock. Maybe something relating to cuda?
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Old January 20, 2010, 07:41 PM
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It's happened to me before Steve - I re-downloaded the client and it worked fine.

Re: the CPU slider, yes it will limit the % of the CPU core used by the GPU client. Irrelevant for nvidia folding, it's only there for ATI purposes. The FAH_GPU_IDLE environment variable is the only way to scale performance of an nvidia GPU client properly.
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Old January 20, 2010, 08:06 PM
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Quote:
Originally Posted by Dead Things View Post
It's happened to me before Steve - I re-downloaded the client and it worked fine.

Re: the CPU slider, yes it will limit the % of the CPU core used by the GPU client. Irrelevant for nvidia folding, it's only there for ATI purposes. The FAH_GPU_IDLE environment variable is the only way to scale performance of an nvidia GPU client properly.
Just tried that again, no luck. Still pegging 3 cores at 100%. I'm starting to wonder about cuda drivers......
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Old January 20, 2010, 08:27 PM
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Hmmm - I've never seen that! Drivers shouldn't matter, but which are you using anyway? And might as well post a fahlog using the code tags in case we can find anything of use.
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Old January 20, 2010, 08:32 PM
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Currently using 178 drivers.... I've just downloaded the official 186 drivers so we'll see if they make a difference.
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Old January 20, 2010, 08:42 PM
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178 drivers?!? What? Why the hell....?

Download the 190.38 drivers dude. Download CUDA Code - complete and free toolkit for creating derivative works

They are the most stable ones for folding to date.
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Old January 20, 2010, 08:50 PM
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Heh... the 178 drivers were the ones that came on the ASUS disk.... after trying the newest offerings and discovering that I was unable to use precision for OC (shaders not available), I thought it was a proprietary driver issue so went with the ASUS drivers.

Installing the 186 drivers resolved the issue. (I thought the 19X.XXX drivers were blowing up people's cards???? ).

I suspect it was probably a Cuda issue more than anything else... seems to me the 18X.XXX drivers were the first ones to come bundled with it.
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Old January 20, 2010, 08:52 PM
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yup before driver version 179 or 180 nvidia used a ton of CPU power along with the GPU client - use a driver 180 or greater and problem goes bye bye
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Old January 20, 2010, 08:54 PM
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Quote:
Originally Posted by sswilson View Post
(I thought the 19X.XXX drivers were blowing up people's cards???? )
Those were the 191-195 drivers. Lotta different problems with those with a lotta different hardware. 190.38 on the other hand are all good, which is why they are still the official drivers for the CUDA 2.3 toolkit. I have read that the new 196 WHQL drivers are quite good for folding, but I'm a if-it-ain't-broke-don't-fix-it kinda guy.
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  #20 (permalink)  
Old January 20, 2010, 08:55 PM
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Quote:
Originally Posted by Dead Things View Post
178 drivers?!? What? Why the hell....?

Download the 190.38 drivers dude. Download CUDA Code - complete and free toolkit for creating derivative works

They are the most stable ones for folding to date.
Hey I still use the 178.24's with my twin 9800GTX+'s and they are my best performing cards. They might be ancient but they work great...
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