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assistance needed with dedicated folder

post #1 of 7
Thread Starter 
alrighty, my dedicated folding rig is having a little trouble. That trouble namely is the apparent inability to fold both SMP and GPU at the same time without either one taking a major hit in PPD.

I moved my GT240 to the dedicated folder as i needed a machine that could use little power and make a beefy chunk of PPD out of it, and since the 240 didnt exceed 80W, i used that instead.

Anyways, after removing the 9600GSO and dropping in the 240, when i got folding going, the 240 would be doing close to 4500 PPD without trouble. But when i turned on SMP folding as well, the GPU stopped running at 100% and fell to about 90-95%, flickering up and down. So i went and gave it priority over the SMP client and tried again. Oh i got my 4500PPD, at the expense of the processor getting just 700PPD. Naturally, i would not take this as i dont want it wasting power.

When i had the 9600 installed, i didnt have this problem.

What would i need to do in order to extract the most PPD out of this machine?
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post #2 of 7
So, the GPU stays at 99% when you have turned off SMP folding?
Have you set CPU priority to idle?
post #3 of 7
I'm not sure if it's exactly the same thing, but it sounds similar. When I was just folding on my sig rig's CPU, I was getting x-amount of ppd at about 3mins-something TPF. I added my GPU to the mix (V7 client) and my TPF shot up to 4mins 12 seconds. Now, the way it was explained to me, by respected members of the forums (such as zodac), is that the GPU utilizes some CPU processing power, causing a decent ppd drop on the CPU.

I was assured that this is normal so, pretty much, don't worry and be happy with the boost in GPU points!

God I hope that made sense.
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post #4 of 7
can you list all your system specs, before and after the hardware change, coupled with the PPD you are/were getting from each config?

With 2 GT 240s on an e4300 @ 3.0GHz I was only getting ~1000ppd from the SMP. So I shut it down as it wasn't worth the power.
post #5 of 7
Thread Starter 
Quote:
Originally Posted by Stef42 View Post
So, the GPU stays at 99% when you have turned off SMP folding?
Have you set CPU priority to idle?
I set the CPU to idle, the GPU to low, the GPU gets priority, resulting in 700PPD for the processor and 4400 for the 240. I tried the reverse, dunno what the processor gets, but the GPU takes a 800PPD hit, dropping it to ~3500-3600 PPD

Quote:
Originally Posted by Substate View Post
I'm not sure if it's exactly the same thing, but it sounds similar. When I was just folding on my sig rig's CPU, I was getting x-amount of ppd at about 3mins-something TPF. I added my GPU to the mix (V7 client) and my TPF shot up to 4mins 12 seconds. Now, the way it was explained to me, by respected members of the forums (such as zodac), is that the GPU utilizes some CPU processing power, causing a decent ppd drop on the CPU.

I was assured that this is normal so, pretty much, don't worry and be happy with the boost in GPU points!

God I hope that made sense.
I am aware of that, but when i had my 9600GSO in there i never had this issue. Both got what they needed and the machine cranked out 6600 PPD.

Quote:
Originally Posted by the_beast View Post
can you list all your system specs, before and after the hardware change, coupled with the PPD you are/were getting from each config?

With 2 GT 240s on an e4300 @ 3.0GHz I was only getting ~1000ppd from the SMP. So I shut it down as it wasn't worth the power.
Before:
E5300 @ 3ghz
2GB DDR2-667 @ 920 single channel (verified stable multiple times at that speed, can probably go faster if i got a kit of heatspreaders and some time)
ASUS P5G41-M LE/CSM
XFX Geforce 9600GSO G92 stock
Approx 3700-4k on the GPU
1.8-2k on the CPU

After: everything remains the same except
2GB DDR2-667 @ 920 single channel (lost the timing optimizations for some reason)
EVGA GT 240 600/1500/1750 (its the one in my sig)
Approx 4400 on the GPU
500-700 on the processor.

I DOUBT the memory timings getting reset back to the looser stock would result in that severe of a drop in performance.

I might try properly installing the nVidia driver (i just dropped it in and let windows do the rest) and see if that works.
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post #6 of 7
Same deal, Currently I have 19 hour's more on my SMP fold... Yeaaaaa.

#2 PC (q8300) used to crunch Wu's when I had a 8600 in there, but when I put in the 5770... It started taking all day and giving me 600 PPD. Running it @ smp 3 now cause the GPU needs it.
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post #7 of 7
I ran into a similar issue when I tried running the combined clients. The solution for me took a little longer to configure, but was very well worth it. I posted and Zotac responded recommending I use the individual SMP and GPU clients, then on the SMP client to allow one core for GPUs (added the "-smp 11" flag). All clients run great now with only a minor ppd drop for the SMP client which the GPUs more than make up for.

Links to the setup guides for each client are in the "Folding@home essential threads" sticky.
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