Folding@Home News 15th October - 22nd October 2010

The GPU is in my server, which is in my attic. My main PC is still keeping me warm! :D

And yes, I felt it was time I turned on the central heating! ;)
 
Moved up a fair few places today, was 14th now 11th! Although I'm guessing it won't be long before rjkoneill moves ahead again!

So major err parpage to rjkoneill, KE1HA and verbal! ;)
 
Nice dumpage today Speed, looks like either I'm erroring out on some bigadv's or just not getting them at the mo, only weebeastie has one at the moment and even thats running slow for some reason :(
 
Biffa said:
Nice dumpage today Speed, looks like either I'm erroring out on some bigadv's or just not getting them at the mo, only weebeastie has one at the moment and even thats running slow for some reason :(
Click to expand...

Thanks. Yeah I know what you mean, they seem to come and go in groups. My systems tend to do two or three 5k WUs and then a bigadv. Just hope they popup more often, some of these smaller units are running pretty slow. Got a P6701 (R70, C53, G2) running at 9,930 PPD for a 5,900 credit at the moment! :rolleyes:

Biffa said:
Someone help me I keep pricing up fully populated SR-2 rigs :eek:
Click to expand...

Heh! Wish I could afford one, but then you really have to stack it up to the PPD from 2nd hand i7 parts and some how I don't see the SR-2 systems coming out on top for Price/PPD output on that one.
 
Speed said:
Heh! Wish I could afford one, but then you really have to stack it up to the PPD from 2nd hand i7 parts and some how I don't see the SR-2 systems coming out on top for Price/PPD output on that one.
Click to expand...

£2,788.42

Not bad for about 90-100K

:eek: :D
 
Last edited:
lol that is one way of looking at it. The other is if you have the space that cash could net you quite a few i7 920 based systems producing more PPD!

But then thats just me being frugal err ....tight lol! Still if I won some decent cash on the lottery I'd still get many! ;)
 
Last edited:
Second hand doesn't count :p

New, 3 x i7 930's would run close to that price and use more electrickery, pump out more heat and probably be still lower in ppd :)
 
I know!!

Sorry am a bit slack. I'll trty and make some movement on it. Butd its going to b e abit long.

I'm thinking of calling it "weebeastie: The evolution of the genus Foldus Specificus"
 
Yeah the GPU's suck the life out of the cpu's
But the 132K was with X5680's which add another £1000 to the price :(

But to show what you can do without the GPU's sucking the resources:

SR2#1: x5650: 191 x 22 = 4202Mhz, at 2:8 mem = 12:21 bench on P2686 = 142,700 ppd
SR2#2: x5660: 185 x 23 = 4255Mhz, at 2:10 mem =11:54 bench on P2686 = 150,000 ppd
Click to expand...

Depending on the WU/overclock you can get up to 160K+ PPD from just CPU's alone. Thats on bigadv.

Even on regular A3's you can get up to 80K PPD :eek:
 
Last edited:
from the posts at the end of that review...

Quote:
Originally Posted by cdb
Couple of questions on the folding side. Were all the ppds done with the 4 gpus and cpus all folding together?

Yes, the ppd on the graphs is from both CPUs and all four graphics cards.
Quote:
Originally Posted by cdb
Did you try folding on just the cpus? I've seen someone say it's not worth gpu folding on the sr2 as you have to give them a core or 2 to work with and that takes a lot of points away from the cpu bigadv at those time frames. They were getting 130K just on the cpus. Any chance you could try folding with say just a 240gt fitted for graphics and fold only on the overclocked cpus to see if 130K is possible and what power this then uses, I'm guessing a good 450W less.

Yes, I did try with only the CPUs folding, with both the A3 and bigadv clients. In the end though, the ppd was so much higher with everything folding together, and I needed to prove whether the board can handle the load (I/O, power and heat), I only graphed the total ppd.

However, from my notepad:

CPUs at 2.66GHz running one bigadv client (=50k ppd ) + 4 graphics cards (=40k ppd), total 90k ppd @ 862W
CPUs at 2.66GHz running one bigadv client (=67k ppd), total 67k ppd @ 537W

So, it looks like folding with the GPUs drops about 17k ppd from the CPU client, but adds 40k ppd, a net gain of 23k ppd.

Using some pretty crude maths, I'd therefore guestimate that the overclocked X5650s would yield about 101k ppd and the overclocked X5680s about 110k ppd.
Click to expand...
 
That's nice in isolation, however its not whats being seen more recently in the field. I know with weebeastie I have to drop down to only using 10 threads on the CPU and reserving two entire cores for the 4 GTX cards.

For some real world figures take a look at this thread on [H]ardOCP http://hardforum.com/showthread.php?t=1541357&page=12

They are having lots of fun with SR-2's :D
 
That's a lot lower than I expected, it might actually make it better value in the long run.
 
You must log in or register to reply here.
Back
Top Bottom