SETI@Home & OcUk Projects News Vol. 170 4th March - 10th March 2012

eggcup said:
I so want 2 watercooled 680's :(
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I could do with three.......

gtx680.jpg
 
loudbob said:
I could do with three.......

gtx680.jpg
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:eek::eek:Wow nice purchase Mr Loudbob sah!! i know your a buisy chap but any conclusions/observations on the performance would be appreciated :D

Biffa said:
My results may take some time, I'm doing a three way test

GTX580 3GB
HD7970 3GB
GTX680 2GB
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Thanks for doing these tests Mr Biffa sah it will help me decide on what gpu route to take this weekend awaiting your results with baited breath :D
 
Well T,

Now been able to test with anything other than SETI and Unigine.....

Looks to be good on SETI (using three units per card for optimal) - won't get a clear indication of performance for a few days.

But Unigine is getting an average of arround 120fps on max settings (1080p) - but then again I am using three GTX680's in TriSli :D
 
Cheers for that S :)

It looks promising output wise hmmmm am just sat waiting on a refund for last weeks project from hell and i will be ordering, it'll be good to get cracking again Cheers :)
 
loudbob said:
Seems the 3 x GTX680's are crunching faster than they can download....
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:D This is a good thing !!! Doubt i can afford 3 but certainly 2, judging by how they are on your r3 S it looks like more space between the gpu's considering they are a double width card is that right or are my eyes going as well? :)
 
Not a great deal of room between cards - but they highest temp reached so far is 84c and fans are pretty quite to be honest (i do have the side panel off tho) - giving my room a temp of over 25c tho (so no central heating required)
 
Nice going Mr eggcup sah you really are racking up big style :)

Finally my output has started to rise and am a day or 2 away from 40,000,000 course it'll rise a lot quicker with a few 680's ..... brrrrmmm brmmmmmm i feel the power of seti coursing through my veins again :eek: :) :rolleyes: :o:o:o I will go now

Nice new siggy Mr Marine sah loving the motor :D
 
derv said:
Can you give some pointers on how to set this up? I had a play around and gave the GPUs their own CPU core and dropped the same core on the CPU units. It didn't seem to make any difference other than dropping usage on one core. GPUs were still milling about on around 75% usage.
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Sorry for the delay work and all that:rolleyes:

The way i have prifinnity set up is -
1) In Boinc manager preferences set 'On multiprocessor systems, use at most' to use 75% of the processor ( Based on using a quad. Adjust as needed depending on the number of cores you have )
2) In Prifinnity set Boinc and Boincmgr to use all but 1 core. This should mean any boinc app that doesn't have an individual prifinnity entry will run using these cores. If this isn't the case on your system you may neeed to set an enty for the AP and AK units to use the same cores.
3) In Prifinnity set the gpu process ( Lunatics_x41g_win32_cuda32 if you using the same lunatics app as me ) to use the free core.

Although the above may not solve your issue. Are you running 2 wu's per card on the 470's and 2 or 3 wu's per card on the 580's? If not this is most likely the cause of the gpu usage being below 90%. The newer gen cards are so much better at handling the units that they will only max out when running multiple wu's at a time.

ToxicTBag said:
Finally my output has started to rise and am a day or 2 away from 40,000,000 course it'll rise a lot quicker with a few 680's ..... brrrrmmm brmmmmmm i feel the power of seti coursing through my veins again :eek: :) :rolleyes: :o:o:o I will go now
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Stop it. Stop it now ;):p
 
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