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Dedicated boinc rig AMD FX 8350?

post #1 of 8
Thread Starter 
I am thinking of setting up a cheap Boinc rig for cpu tasks only. Would it be worth doing this?
Also the FX8350 seems really good value, what do you guys think of it as a Boinc processor?
post #2 of 8
http://www.overclock.net/t/1333134/boinc-can-only-use-4-cores-of-fx-8320/0_40
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post #3 of 8
yeah amd 8xxx is more like 4 cores w/HT except their HT slows the cpu down a ton. Tex has a lot of good info on them.
    
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post #4 of 8
dark, you need to stop saying that because it just isn't true. the cpu has 8 physical modules, there is a debate whether to call them cores because they share L2 cache. it can "slow it down" for certain tasks, but if you are only using single threaded programs i believe you can disable one module on each L2, essentially converting it to a quad core cpu, to increase performance. i haven't tried that but it might be worth looking into for boinc. haven't had too much time to play with mine so far


back to what you asked vektrauk, my computer is essentially dedicated to boinc now. if you read my other thread that 2002dunx linked, you saw that it works fine and can run 8 cpu tasks at once. as for whether it's worth it i'm not sure what you mean
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post #5 of 8
Quote:
Originally Posted by ihatelolcats View Post

dark, you need to stop saying that because it just isn't true. the cpu has 8 physical modules, there is a debate whether to call them cores because they share L2 cache. it can "slow it down" for certain tasks, but if you are only using single threaded programs i believe you can disable one module on each L2, essentially converting it to a quad core cpu, to increase performance. i haven't tried that but it might be worth looking into for boinc. haven't had too much time to play with mine so far

back to what you asked vektrauk, my computer is essentially dedicated to boinc now. if you read my other thread that 2002dunx linked, you saw that it works fine and can run 8 cpu tasks at once. as for whether it's worth it i'm not sure what you mean
oh yeah, check out the attached pictures. read where it says cores, then where it says clusters...
    
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post #6 of 8
I think the issue for using bulldozer/piledriver for BOINC is that there are 8 integer compute cores and 4 shared FPU compute units.

BOINC tasks are primarily FPU computation based so you have 8 work units trying to share the 4 FPU compute units.
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post #7 of 8
A 3.94 GHz 6-core Thuban 1090/1100T beats an 8120 clocked 4.2GHz when fully loaded with 8 cpu tasks by a factor of 2. The split FPU really slows it down... but it WILL work...

I have an FX8350 I will try one of these days, but it will be used as a 4-core for CPU tasks and support 2 or 3 GPU's... I think it will work that way, but we will see...

biggrin.gif
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post #8 of 8
I'm getting an FX-8350 next Tuesday, will post infos ASAP about this.
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