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[Ubuntu] A Linux N00B's Guide to Running -bigadv (and big -bigadv) on x6 and 2500k - Page 7  

post #61 of 100
is there anyway to select only 6903's?
    
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post #62 of 100
Well, officially, if you set the client to only use less than 2800MB of RAM, it should limit the client and not donwqload P6904s, but it didn't work for me when I tried it.

Someone else might have better luck.
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post #63 of 100
Thinking about giving this a try but I'd prefer to do it as a VM. Has anyone tried this with the latest version of umbuntu (11.10) and VMWare 3.0? I've seen 10.10 mentioned alot but I didn't see it on Umbuntu's site. Can anyone recommend a mirror with 10.10?
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post #64 of 100
do you think a dual socket F setup with 2 six core opterons @1.8 GHz can finish in time the regular bigadv units?
Edited by MARSTG - 10/25/11 at 10:29pm
post #65 of 100
So there are upcoming changes that will require 16 cores as of New Year's 2012. Clearly, speculation on whether a 2500k at any clock is capable of completing the largest -bigadv wu when they implement the new time changes.

The question I have, is can this same technique be used to report 16 cores on a native linux client? If so, forgive me for being completely ignorant but would you make the core value 12 for the normal 4 +12 = 16, or would you make the core value 16 itself? I'm a bit confused on how that works.

(Specifically i5-2500K @ 4.7 GHz, 8 GB 1600 CL8 RAM folding 24/7 Ubuntu 10.10 (64) native on ext3 filesystem.)
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post #66 of 100
Quote:
Originally Posted by shad0wfax View Post

The question I have, is can this same technique be used to report 16 cores on a native linux client?
Yes, there is no difference between a native linux install and VM in that regard.
Quote:
If so, forgive me for being completely ignorant but would you make the core value 12 for the normal 4 +12 = 16, or would you make the core value 16 itself? I'm a bit confused on how that works.
(Specifically i5-2500K @ 4.7 GHz, 8 GB 1600 CL8 RAM folding 24/7 Ubuntu 10.10 (64) native on ext3 filesystem.)
You will need to set TARGET_NCPUS to 16.
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post #67 of 100
Even if you can fake 16 cores, you won't finish in time, they will also cut the deadline.

http://folding.typepad.com/news/2011/11/planned-changes-to-big-advanced-ba-projects-effective-january-16-2012.html
Edited by denial_ - 12/5/11 at 5:11am
post #68 of 100
Quote:
Originally Posted by shad0wfax View Post

So there are upcoming changes that will require 16 cores as of New Year's 2012. Clearly, speculation on whether a 2500k at any clock is capable of completing the largest -bigadv wu when they implement the new time changes.

The question I have, is can this same technique be used to report 16 cores on a native linux client? If so, forgive me for being completely ignorant but would you make the core value 12 for the normal 4 +12 = 16, or would you make the core value 16 itself? I'm a bit confused on how that works.

(Specifically i5-2500K @ 4.7 GHz, 8 GB 1600 CL8 RAM folding 24/7 Ubuntu 10.10 (64) native on ext3 filesystem.)
Quote:
Originally Posted by denial_ View Post

Even if you can fake 16 cores, you won't finish in time, they will also cut the deadline.

http://folding.typepad.com/news/2011/11/planned-changes-to-big-advanced-ba-projects-effective-january-16-2012.html

In my above quote I forgot to finish my sentence; it should have read as follows:

"So there are upcoming changes that will require 16 cores as of New Year's 2012. Clearly, speculation on whether a 2500k at any clock is capable of completing the largest -bigadv wu when they implement the new time changes isn't going to mean much until we see exactly how much time they give us."

I forgot to finish my thought. I was more curious about the 16 core trick as I was going to try to get one of those larger wus now and time it to see how fast I finish now.

Dr. Pande states that he'll be shortening the deadline but not by how much. As you said, I doubt that I'll be able to do it, but the core "spoof" may have other uses.
Edited by shad0wfax - 12/6/11 at 10:52am
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post #69 of 100
spoofing the client in reporting 16 cores will not be an issue, the real issue will be the computing power required to finish the unit in time for getting the bonus. Probably the new SB-E will be able to do that given the 6c/12T configuration. And for sure methods to fool the client will surface again as a real 16 core machine will cost around 1000$ no matter from what direction, Intel or AMD. There are on ebay some Arima server boards on socket F, refurbished for 80$. A quad core opteron 8389 @2.9GHz is another 70$ . So mobo and cpus 400$ once. A good PSU to power that and some old socket 940 heatsinks will add another 150 max. So will a 16 core machine like this at 550$ finish in time for bonus? Difficult to say.
post #70 of 100
I had some notes from when I was looking to build my first multi processor rigs. I don't think the 8389 is a really good choice given your options.

Notes:

4 x Opteron 8358 (2.4Ghz) has been logged at 34,850 PPD (including the -bigadv bonus) so running at 3.0Ghz should do about 40,000 PPD.(Current bigadv times)

Dual Xeon 5540 does 1% of bigadv in slightly less than 27m with 270W.
A 2.3GHz four Opteron setup is capable of doing ~24m45s with 470W. That's 9% faster with 74% more power

An SR-2 overlocked E5640 machine pulls roughly the same wattage from the wall as the four opteron setup, but produces ~140k+ points per day. The prices on slightly used equipment would put 3 of the Opteron machines at about the same price as the slightly used SR-2 machine. Even if we assume that the 3x AMD rigs produce the same amount as the E5640 you are doing that with 1,410W versus ~450W. Where I live that will equate to ~$50 a month in extra power costs. That is also with the false assumption that the AMD systems will produce the same as the Intel.

So the savings you might see in hardware is going to be eaten up by power consumption, and I think if they shrink the times you are going to see a loss of a lot of bonus points. I think a 2600k or 3930k setup would be better over the long run.
Edited by Buckwheet - 12/9/11 at 7:03am
    
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