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Help deciding on a dedicated BOINC motherboard/CPU setup

post #1 of 100
Thread Starter 
I currently have an AMD FX motherboard with an X6 1035T processor. Was planning on going bulldozer with it, but that has fizzled and the 1035T is underwhelming in overall BOINC performance.

One of my relatives wants to buy my X6 1035T machine and I see this as an opportunity to start fresh. smile.gif

I currently have 2 setups that interest me.

A sandy bridge-E setup or

Interlagos G34 server with dual processors.

I am comparing SB-E overclocked performance to Interlagos as stock speed because you can't overclock the interlagos (server) board.
The performance of the 32 thread interlagos machine would probably be a little higher than the 12 core HT SB-E, but the SB-E would be a little cheaper.

I also don't know if I could run Win7 on the interlagos machine? Everyone is either running Server 2008 or linux on most of those boards. I would guess that the SB-E would be a little better supported with what I am wanting to do here, but I am not sure?

Any thoughts or suggestions would be appreciated.
post #2 of 100

Well since I'm pretty much an Intel fan in the cpu segment I would probably just go with SB-E.

Like you said, SB-E probably would be better supported. And I would go with SB-E also for the reason that you can OC! :D

Someone with better reasons and experience/knowledge about Interlagos/SB-E might wanna chime in on this though :D


Edited by lagittaja - 2/15/12 at 2:00pm
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post #3 of 100
have you considered the Gigabyte GA-990FXA-UD7 motherboard, it has room for quad sli and has all the fruit on it as far as overclocking goes smile.gif
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post #4 of 100
Thread Starter 
Quote:
Originally Posted by deegon View Post

have you considered the Gigabyte GA-990FXA-UD7 motherboard, it has room for quad sli and has all the fruit on it as far as overclocking goes smile.gif
And run what chip. The X6 1100T? How do you think an OC X6 1100T would compare in BOINC to an unoverclocked interlagos G34 16 core chip? I think the interlagos G34 would smack the X6 around.
Quote:
Originally Posted by lagittaja View Post

Well since I'm pretty much an Intel fan in the cpu segment I would probably just go with SB-E.
Like you said, SB-E probably would be better supported. And I would go with SB-E also for the reason that you can OC! biggrin.gif
Someone with better reasons and experience/knowledge about Interlagos/SB-E might wanna chime in on this though biggrin.gif

The dual processor interlagos would be cool and would be a crazy BOINC machine, but the SB-E would be a beast.
post #5 of 100
I would suggest to shift you're focus from CPU to GPU. Most projects, give more points to GPU's.
POEM for example gives much more points, DistrRGen, Moo!, Milkyway, you name it.
You might want to consider to change from a high-priced cpu to a somewhat lower priced one, with a nice GPU.
post #6 of 100
Thread Starter 
Quote:
Originally Posted by Stef42 View Post

I would suggest to shift you're focus from CPU to GPU. Most projects, give more points to GPU's.
POEM for example gives much more points, DistrRGen, Moo!, Milkyway, you name it.
You might want to consider to change from a high-priced cpu to a somewhat lower priced one, with a nice GPU.

While that is true as far as points go, I already have a pair of unlocked 6950's and a GTX 480 that can put up some pretty good numbers for GPU projects. I don't think there is much mystery about how to do that.

It is a little more intersting on the CPU side...
post #7 of 100
disclaimer, I'm not an expert, I just do a lot of reading and guessing. I'm not too smart with these things :-/

I should think Interlagos would obliterate anything else in running the milkyway@home N-body simulations. Interlagos has the SSE3 instruction set which milkyway@home is optimized to use, so if all 16 cores are working on that one project, the amount of work that could be done with that set-up is mind-boggling. Even if you could OC SB-E to be 2-3 times faster than the Interlagos set-up, I still don't think it would be able to touch the work that Interlagos can do.

That being said, because it's based on the architecture of the BD chip, we know that single threaded applications tend to run much slower on this architecture. So if you're not at all interested in running the N-body simulations 99% of the time, I would think that SB-E would be the set-up for you. Even at the same clock speed, the SB-E chips are significantly faster due to their architecture. So even though Interlagos would be running 16 tasks at one time, You can easily OC SB-E to run twice as fast as the glock speed of Intergalos and will get much more crunching done.

I will keep reading tonight when I get home from work and see if I can't dig up any hard factual information about this. I think Tex touched on why the FX series doesn't work so well with BOINC, in his real-world benchmarks thread. But I don't remember if he tested it with the multi-threaded n-body simulations. I know he had mentioned the architecture didn't do so well with floating point, but I don't remember what the results were (if any) on integer tasks. Sorry, this was pretty uninformative, kind of a placeholder so I see it on my subs and won't forget to do some reading tonight smile.gif
Edited by b3machi7ke - 2/15/12 at 2:58pm
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post #8 of 100
Thread Starter 
I hadn't considered the fact that the interlagos isn't 16 individual cores, but 8 bulldozer units.
post #9 of 100

But it's still 16threads.

Also I think that the Interlagos would totally obliterate renderfarm.fi and BURP wu's lol :D Those two aren't much of a point makers but we all don't care that much about cpu points since GPU's can pump out ridiculous amounts of points on certain projects.

But I think they're both multithreading projects so, atleast the renderfarm.fi is :) Keep in mind, BURP needs quite a lot of ram, minimum of 8-9gigs AVAILABLE  iirc and wu's are quite big to download afaik.

So if you plan to run single core wu's then SB-E. If you plan to run multithreading wu's then Interlagos for sure.


Edited by lagittaja - 2/15/12 at 3:08pm
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post #10 of 100
I've done some research into this very subject and can offer the following:

InterLAGos chips are indeed BD architecture and will be slow for the following reasons:

1) G34 has to keep TDP low, so no matter what's inside, clocks are kept low to reduce temperature.
2) Any use of them would best be done using 1/2 the total cores so as to keep the FPU's fully utilized.
3) Magna Core G34 based Opterons will always outperform InterLAGos chips for BOINC tasks, but same speed/temp considerations and neither can be overclocked at present.
4) A 12 core G34 based Opteron of either vintage cannot perform much better than the 1100T overclocked to 3.964GHz and cost 4 times more hardware wise in total.
5) A 16 Core InterLAGos chip would perform marginally better than the 1100T OC'ed running on 8 cores... but just barely... maybe few percent max.

BOINC CPU tasks typically use a ton of FPU power, so FPU speed and count is what should drive your decision.

1100T outperforms an Intel i7-950 at 4.26GHZ all day long every time. 2600K chips need to be highly overclocked to keep up. I7-2500K is the fastest, but it's a 4 core without HT. HT slows them down for BOINC tasks.

In a nutshell, considering the price/performance, you would be better off with several 2500/2600K chips and overclock the pizz out of them. Or, several 1100T machines... But, if you must spend the money and go Opteron, get the 6180SE chip... MagnaCores will always outperform InterLAGos chips.

biggrin.gif
Edited by Tex1954 - 2/15/12 at 3:15pm
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