Got my GTX460s

didgemaster

didgemaster

didgemaster

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Taunton, Somerset
However I am starting to think that they are not worth bothering with!

My PPD 0n my i7 920 @ 3.8GHz has dropped by as much as I've gained replacing my 2 GTX260s! I am running -bigadv :eek:

Should I be configuring a different way?
 
Biffa said:
Don't run bigadv with multiple gpu's better off just running normal A3's
Click to expand...

I had found that I was about 10000 ppd better off running bigadv, on all 8 cores along side gpu2 on 2 gtx260s, than running normal A3 cores.

Its early days but with bigadv on and gpu3 with 2 gtx460s I'm getting about 24000 ppd on my i7 with 7 cores running this is still better than the 15000-18000 I get on normal A3 cores. The CPU folding isn't as good as before but the 2xgtx460s are pushing it in the right direction
 
didgemaster said:
I had found that I was about 10000 ppd better off running bigadv, on all 8 cores along side gpu2 on 2 gtx260s, than running normal A3 cores.

Its early days but with bigadv on and gpu3 with 2 gtx460s I'm getting about 24000 ppd on my i7 with 7 cores running this is still better than the 15000-18000 I get on normal A3 cores. The CPU folding isn't as good as before but the 2xgtx460s are pushing it in the right direction
Click to expand...

That's pretty good actually. I've found that its so dependant on setup and WU that some of mine have been ok with the cpu/gpus not losing much ppd and some where the gpu ppd takes a hammering and some where the bigadv or even vanilla A3 cpu ppd drops.
 
Well gulftown has two extra cores and 4 extra threads to handle it.

Think I might be "upgrading" to a 970 at least on weebeastie at some point in the rebuild.

An example of what I was talking about before, on my main rig, I set the GTX460 folding and everything seemed ok for a while with the bigadv but it wasn't really.

Here is the log before I started the GTX folding, not great PPD but the machine gets used for other things as well as folding:


[09:07:40] Completed 202500 out of 250000 steps (81%)
[10:01:19] Completed 205000 out of 250000 steps (82%)
[10:54:47] Completed 207500 out of 250000 steps (83%)
[11:48:10] Completed 210000 out of 250000 steps (84%)
[12:40:46] Completed 212500 out of 250000 steps (85%)
[13:33:30] Completed 215000 out of 250000 steps (86%)
[14:25:53] Completed 217500 out of 250000 steps (87%)
Click to expand...

So around 50 min/frame, not great but the WU was a toughie. When left to its own devices it drops down to around 38-40 min/frame or aprox 21K PPD

Then I started the GTX460


[02:44:27] Completed 222975 out of 250000 steps (89%)
[04:56:26] Completed 225000 out of 250000 steps (90%)
[07:57:33] Completed 227500 out of 250000 steps (91%)
[08:43:45] - Autosending finished units... [September 1 08:43:45 UTC]
[08:43:45] Trying to send all finished work units
[08:43:45] + No unsent completed units remaining.
[08:43:45] - Autosend completed
[11:11:03] Completed 230000 out of 250000 steps (92%)
[14:13:33] Completed 232500 out of 250000 steps (93%)
[14:43:42] - Autosending finished units... [September 1 14:43:42 UTC]
[14:43:42] Trying to send all finished work units
[14:43:42] + No unsent completed units remaining.
[14:43:42] - Autosend completed
Click to expand...

And thats the last I have heard from it, its gone to 3h+ per frame and often looks like its hung. CPU usage is still at 100% with about 85% on the CPU folding process, about 1-2% on the GPU folding process and the rest taken up by "system" which I have traced down to acpi.sys with a process tracker.

This is running "-smp 7 -bigadv -forceasm -verbosity 9" cpu client is running slightly lower priority than gpu as per the -configonly switch.

I've also tried various affinity programs, WinAFC which worked well for GPU2 and A3 SMP doesn't seem to help at all with this situation on this machine.

When running WinAFC or any other program I've usually allocate CPU0-6 to the SMP client and CPU7 to the GPU client.

What concerns me is the acpi.sys CPU usage it doesn't start straight away it builds up over time but stays hovering around 10% across all cores. :confused:
 
Last edited:
I had noticed the system process bouncing up and down a bit but its not built up to that size. I have now had it on for about 24 hrs and it has settled down around the 23000 mark - just over 40 mins a frame on a P2685

I will have to see how it behaves with other WUs

Gulftown would be nice but they're just too expensive for me
 
Re Gulftown: I know :(

Re my problem: not sure, going to try a few things, but I'm getting the feeling a clean install is going to be the ticket. :(
 
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