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25% CPU usage?

post #1 of 6
Thread Starter 
For the chimp challenge, I have decided to fold on just my card because my CPU hardly gets me anything. I did a trial run today and I checked my CPU usage and it was 25%? Isn't that meant to be 100%? Or does it just use 1 core to "run" the GPU?

I have another 6870 coming halfway through the chimp challenge so will I see the CPU usage jump to 50%? Is there anyway that I can get more performance from the GPU('s)

Cheers
post #2 of 6
If the GPU's are constantly at 100% usage (as it should be), there is no bottleneck and you are perfectly fine.
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by Ipwnnubletz View Post
If the GPU's are constantly at 100% usage (as it should be), there is no bottleneck and you are perfectly fine.
I'm sorry, I am not following

My setup with just the GPU running uses 25% of the CPU according to task manager. Is it meant to be at 100%?
post #4 of 6
If yout running the GPU client you'll see the CPU usage go to 25% max. Adding a second GPU won't use another CPU core, usage will still be at 25&, unless you map a core to each core_16.exe process.
You can still fold on your CPU, by setting a -SMP 3 flag
OC is the only way you can get more PPD from your graphics cards
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post #5 of 6
Thread Starter 
Oh I understand now

I am using the new v7 client so how do I set -smp 3?
post #6 of 6
No the cpu doesn't need to be at 100%. It's just using what it needs to get the gpu's going. If you were to set the cpu folding as well it would be at 100% obviously.
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