F@H & GPU Client

Dougiebabe2003

Dougiebabe2003

Dougiebabe2003

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Been crunching S@H WU's for a while now and thought I would lend some of my time to the F@H side as well ;):D

Been hearing things about this GPU client so thought I would try it out. I've gathered that this means I'm lending one core of my Q6600 to feed the GPU client and my 4870 to crunch the WU.

Only got my PC running F@H atm and it will probably stay that way for the distance future.

A few questions:

What sort of a contribution/PPD will I be giving/getting with this setup?

I read somewhere that Vista should only use part of one CPU core but seems to be using 100% of mine. Not a massive problem just wondering if there is somthing I am doing wrong?

Looking at GPUZ and Rivatuner I'm using around 91% of my GPU core, is this about right?

Also, I'm on Vista x64 and had a load of EUE WU, I think I got it sorted now as it seems to crunching through a p4732? I read around and EUE on Vista x64 with ATI cards seems to happen a lot. Is there any fix to this yet?

Thanks in advance for answering my questions and look forward to my first completed WU!
 
A full CPU core is at 100% because it's an AMD card, an nVidia card would use much less.

A 4870 card is only going to give a couple of thousand ppd, unless there is a new core out I don't know about. *goes to check*
 
I've been heading towards 3000ppd with my 4870. Seems to be some better WUs around now that it likes feeding on.
 
It doesn't seem to matter whether a full core or part core is being used for GPU Folding since Boinc only seems interested when the whole core is available.
Hence my system monitor says 3 cores ~100% for Boinc, 1 core~20% for gpuFolding.
OK, so it might help with temps a bit, but Q6600s don't run all that hot anyway. (Unless you clock it within an inch of it's life ;))

Can't help with ATI Folding woes as I'm using NVidia under Vista64. 3000ppd is still quite a nice return, and might improve with some development work at Stanford.
 
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I've played with different GPU folding configurations, hopefully this information will help.

nVidia GPU folding on Vista uses very little of the CPU. Both my 8800m GTX and my GTX 280 use about 7% of one core. Folding on XP, the GPU client wants an entire core for the GPU client, but binding 2 cards to 1 core doesn't slow down either of them.

ATI cards on Vista use a lot of CPU power to feed data to the GPU. My 8800m's turn out 4700PPD whilst my 280 does 7500. My previous 3870 clocked to 810 on the core managed 3000PPD using almost one entire core of a 3.4Ghz E2200. If droped the clock on the CPU back to 3Ghz the PPD fell to 2700.

My friends 4850 clocked to 725 core coupled with a 3.6Ghz E5200 managed to turn out 3500PPD using 99% of the GPU.

I've also read (but there is no confirmation) that the current ATI GPU client only uses the 320 stream processors found in 3800 series, the extras in the 4800 series are not used. Whilst the gaming performance of the 4800's compared to the 3800's is a massive leap, the dismal increase in folding power doesn't make sence, leading me to think that the un-used stream processors is true. But if that is the case, why does is show up that the GPU is at 99% load?... Doesn't really make any sence.

I've not tryed ATI folding on XP so I can't give any information there I'm afraid.
 
I currently fold both a 3850 and a 8800GS on 64bit Vista on a Q6600 and was on XP before.

Ati on Vista uses about 25% of one core
NV on Vista uses about 10% of one core

Ati on XP used about 85% of one core
NV on XP used about 35% of one core
 
Cheers for all the replies!

So everything looks OK and I should expect 3000-3800PPD if running 24/7?


Cheers again,

Doug

P.S My 4870 is clocked to 800/1000. Will this give me any tangible benefits or should I put it down to 750/950 which is what it was at before?
 
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