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post #141 of 178
Quote:
Originally Posted by TheBlademaster01 View Post

I never got it working properly (low performance). It's also quite complicated, you also need to have an nVidia GPU since it only works with passing CUDA libraries.
Yeah, it's the best in case of compatibility smile.gif

Any recommendations for hardware, as in building dedicated folding rigs? Any threads on here that pertain to that? I've tried searching around but no luck (I find the search function here difficult to use).
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post #142 of 178
Thread Starter 
Hmm, depends on the price bracket. What are you looking for (or rather how much can you shell out)?

For CPU folding, you should try to get multiple workstation CPUs on a single board running in Ubuntu. The other side is running an entry level CPU with multiple GPUs in Windows (79xx or 580, 680).
post #143 of 178
I'm not sure yet what I want to invest in this. I guess just what would be the different levels and make sure what I'm buying is worthwhile and appropriate (say there's something else better suited for the price). Questions such as...

>Would investing in a xeon processor be worthwhile (it would perform better on this type of task than other processors)?
>Standard GPUs such as Radeon and GeForce are appropriate?
>The focus is primarily on CPU and GPU. Can really just go basic on most other components?

I swear I saw a guide or thread pertaining to what components to consider for a dedicated folding machine on here. And of course I could build a machine that does both CPU and GPU folding (but obviously that gets much more expensive). Which side tends to fare better (CPU or GPU folding)?

And would folding perform better under Windows or Ubuntu?
Edited by tmontney - 4/5/13 at 2:33am
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post #144 of 178
Thread Starter 
Hmm, never saw such a guide. It is worth it to get 2P Engineering Sample Xeons on eBay, or multiple (2-4P) AMD opteron 617x or 619x and the higher end 63xx parts. They get about 10x the PPD of regular i7 CPUs. Also better on the bills (better binned -- less leaky chips)

The levels for CPUs are roughly estimated (stock estimated max - OC estimated max)

4P AMD MC/AD: 500-850k PPD
2P Intel Sandy-EP/Westmere-EP: 350-500k PPD
Sandy Bridge-E: 60-120k PPD
Ivy Bridge/Sandy Bridge: 45-90k PPD
AMD FX 83xx/ Ivy 4T / Sandy 4T: 35-75k PPD (no real data of max OC 83xx on best units, based purely on Ivy and Sandy quads)

For GPUs:

7970/ GTX 580: 40-50k PPD
7950/ GTX 680: 35-45k PPD
7870/ GTX 560: 20-30k PPD

Power consumption for CPUs are better. Workstation/ Supercomputer grade cards do not perform better since folding uses exclusively FP32 ALUs on current work units. They may very well be slower due to higher latency cache and VRAM and in some cases ECC registers (stability/reliability rather than performance).
Edited by TheBlademaster01 - 4/5/13 at 2:46am
post #145 of 178
Very helpful, thanks. I'll definitely refer to this. I notice people worrying about power consumption. How bad or how much can it really influence your energy bill?
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post #146 of 178
Thread Starter 
Quote:
Originally Posted by tmontney View Post

Very helpful, thanks. I'll definitely refer to this. I notice people worrying about power consumption. How bad or how much can it really influence your energy bill?

Glad I can help. Do note that PPD is highly dependent of the work units you fold. If you fold low yielding projects, you'll get lower returns. Stanford might also introduce new work units or even FahCores (FahCores are the "engines of folding" as you could call them, the CPU/GPU actually engage to this when processing the work unit data). Given the fact that these change over time, other hardware might become more interesting -- huge achievements are made in the GPU sector lately.

Power consumption is dramatically higher on "gaming grade" or regular desktop grade hardware. Also Intel is more efficient than AMD with the current architectures. A 3930K clocked over 4.5GHz can consume far more power than a 2.5-3GHz 2P 8C/16T Xeon subsystem. We are talking about 100W of difference probably, of course this depends on the quality of the chip or rather overvoltage.

As you can see AMD 4P are quite worthwile as well, and are still pretty efficient at stock. Overclocking them causes the power consumption to raise exponentially which shouldn't come as a surprise since you are overclocking and volting 4 chips basically. Power consumption is very important for 24/7 folding. Can't really give any international estimates, but expect it to have a huge impact on the bills biggrin.gif
post #147 of 178
http://www.newegg.com/Product/Product.aspx?Item=N82E16819117271
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131886

Considering those (2 of the Sandy). I was thinking of getting the smallest case possible, but then thought I should consider more room for CPU coolers. And then I could add a GPU or two later and should make sure there's enough "length room" too.

And which is better: Ivy or Sandy?

This would be budget:

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131795
http://www.newegg.com/Product/Product.aspx?Item=N82E16819113284

What do you think?
Edited by tmontney - 4/5/13 at 3:23am
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post #148 of 178
Thread Starter 
You should look into getting ES chips. The lower end E5 are not that fast. Two of them would be as fast as a 2600K or something.

If you want retail, get E5-2650s or higher. I'd advise you to get QA91s, QA8Zs or something similar from eBay or OCN though.

Ivy is about 200MHz faster than Sandy clock for clock. A 5.2GHz 2600K is about equal to a 5.0GHz 3770K. Ovy doesn't always overclock that well though. Also there are no Ivy E5 Xeons out yet frown.gif
post #149 of 178
Thread Starter 

These for example

post #150 of 178
Quote:
Originally Posted by TheBlademaster01 View Post

These for example

Ahhhhh. Those are quite reasonable indeed!

Perhaps someone has some solid data on the FX-83xx. Although the ES's are reasonable, the lowest motherboard (so far) I've found that looks reasonably reliable is at least $250. It could be more worthwhile to build two FX based builds. Or at the least the same and I could afford them faster. Again, I'd be curious to see some solid PPD data on the FX (considering you said you didn't have much on them).
Edited by tmontney - 4/5/13 at 12:43pm
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