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Folding on 2 fermis in 1 system kills smp?

post #1 of 7
Thread Starter 
I picked up another gtx 550ti last night to fold on in my i7 rig, and when I'm folding on both gpus my smp ppd drops in half. Is this to be expected?
   
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post #2 of 7
Are you using the client-type=advanced flag on the GPU's? Try using 4 CPU cores with both the GPU's folding on Core 17 units and see how it works.
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post #3 of 7
Thread Starter 
I'm using client-type advance and client-type beta on all of my slots, I thought AMD were the ones to waste cpu cycles on gpu folding?
   
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post #4 of 7
With core_17 the table have turned.

Run them without any flags, the 550s won't benefit from _17, also total PPD will go down.

Also on your other slot, choose either beta or advanced.
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post #5 of 7

It's actually pretty close arvidab. I was getting about 16k PPD on my 460 @ 800 MHz on core 17. That's almost on par with standard units. 800 MHz is about the same as my 450 @ 950 MHz, so his 550ti probably slides right in between. I agree with you though, folding standard units is likely better, and especially if he pauses the client at any point.

 

I'm getting 19k PPD on my 460 @ 930 MHz right now, so I am still folding core 17 on it in TC.

 
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post #6 of 7
Guess I gotta try my 560Tin Windows on the _17 units which are out now, when it was first released I lost ~1-3k PPD iirc (plus an occupied CPU core).
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post #7 of 7
Thread Starter 
After plenty of confugouling, 1 gtx 550ti with extra vrm cooling oc to 994mhz core is beating the pants off 2x gtx 550 tis stock, with no flags on the slots. I think i'll do the vrm cooling mod to the 2nd evga gtx 550ti i recieved this evening and see if i can attain the holy grail of 100,000 ppd with the hardware I haven't had to spend a new dollar on smile.gif
   
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