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Horrible TPF on 2684 in VMware

post #1 of 6
Thread Starter 
Ok, got a problem here with one machine folding bigadv.

Code:
Rig:
1055T@3696MHz
4GB (allocated to VM) DDR3-1408MHz
Windows 7 and VMware Player 3.0.0 with Ubuntu 10.04
I've been folding bigadv fine for a couple of weeks, most of the time at a lower clock (3.44G). The TPF on 6900 is below 35min on average, using the computer with "office" type work load.

Got one 2684 when I was at the slower speed and the TPF shot through the roof, iirc it was well over an hour ~1.5h. Thought it was my OC that were too low, so upped it to what I'm at now. Folded a couple of 6900, with expected TPF, and got another 2684, first frame were done in 55min and then the horror began. TPF was holding steady at 1h20min, which is 128% higher than for the 6900. I closed down most everything that I had running but that didn't make much of difference, a minute tops. And yes, it's loading the cores to 100% and clock is @3696MHz when it's folding (which means all the time ).

Now I know that 2684 are more demanding and do take longer time to fold, but with the experience I've had with another rig is that the TPF is about 37% longer on those compared to other bigadvs. That was also a X6 but folding native Ubuntu 10.04, slighter higher clock too ~3.8. By that I'd expected to see a TPF of well under 50min on the current machine.

My question is if VMware could have something to do with this abnormal TPF increase, and if there are anyone else that has experienced a similar behavior? And what should I try to get it down to more manageable times? At the current rate it will be finished 1.5 days too late.

tl;dr
Abnormal TPF increase (128%) on 2684 vs other bigadv-WU folding through VMware, what's up with that?
Frigg d.y.
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Frigg d.y.
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post #2 of 6
How many threads are you running, arvidab (virtual)?
post #3 of 6
Maybe your ram is unstable? Try loosening the timings a tad.
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Gene-Z Dedi
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post #4 of 6
Thread Starter 
Quote:
Originally Posted by sstnt View Post
How many threads are you running, arvidab (virtual)?
Running with '-smp 6' and corefix spoofs 8 cores. But it's just 6 threads to fold with.

Quote:
Originally Posted by JedixJarf View Post
Maybe your ram is unstable? Try loosening the timings a tad.
Maybe, but they were fine @1640 9-9-9-24-2T with the lower core clock (3.44). They're rated at 1600 9-9-9-24-2T, and is running stock timing atm. But I will try to loosen them a bit anyway.
Frigg d.y.
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Frigg d.y.
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post #5 of 6
Quote:
Originally Posted by arvidab View Post
Running with '-smp 6' and corefix spoofs 8 cores. But it's just 6 threads to fold with.



Maybe, but they were fine @1640 9-9-9-24-2T with the lower core clock (3.44). They're rated at 1600 9-9-9-24-2T, and is running stock timing atm. But I will try to loosen them a bit anyway.




ok, then it's not the issue I was thinking of. Some time ago, people were having issues with TPF on 2684s when they were running threads that were a PRIME NUMBER (don't ask me why, just was happening). So it you were using 7 threads, that would apply. But don't think it's that, then.
post #6 of 6
I don't believe it's an issue with the VM; sometimes you really do just get bad WUs. If restarting doesn't help, try dropping the CPU OC 100-200MHz. If that doesn't show massive improvements, it's most likely the WU that's gone wrong.
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Megadoomer
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