Number of cores to keep GTX295s busy?

Questions and Answers : GPU applications : Number of cores to keep GTX295s busy?
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Profile mr.kjellen
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Message 851611 - Posted: 10 Jan 2009, 9:23:06 UTC

Hi all,
I'm considering putting a new rig together. If I put in 2 or 3 of the new GTX295 cards, will there be enough work to keep them busy 24/7 if they run on a penryn quad system (400WU/day), or will I need to go with a core i7 (800WU/day) to keep them busy? What do you tink?

/Anton
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Message 851853 - Posted: 10 Jan 2009, 20:39:41 UTC

Even if the tasks take as long as my gtx 260 core 216 and you only have 2 cards you would get through ~575 a day minimum. As for a maximum? ~2468 wu's. Yikes!

(minimum is using long wu's and only 2 cards (4 processing chips) and the max is the 14 credit wu's with 3 cards (6 processing chips) )

This is of course assuming no errors/delays/downtime...
So in other words it doesn't matter which way you turn you still wont keep them fed.. LOL


Do you Good Search for Seti@Home? http://www.goodsearch.com/?charityid=888957
Or Good Shop? http://www.goodshop.com/?charityid=888957
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Message 852123 - Posted: 11 Jan 2009, 8:20:18 UTC

hmm, yeah thats about what I thought...3 cards is out of the equation as yet then...And a core i7 it is. I'll just have to make sure the 10 day cache is fully stocked :)

Thanks..
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Message 852183 - Posted: 11 Jan 2009, 12:37:28 UTC - in response to Message 852123.  

hmm, yeah thats about what I thought...3 cards is out of the equation as yet then...And a core i7 it is. I'll just have to make sure the 10 day cache is fully stocked :)

Thanks..


10 day caches hardly get filled with SETI. Having 7 day deadlines, BOINC assumes your work will sit in cache for 10, thus potentially missing its deadline. 3 or 4 day caches work much better with SETI.
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Message 852187 - Posted: 11 Jan 2009, 12:47:59 UTC

Yeah, I usually keep a 4.5 day cache...Have I just dreamt this or wasn't there at one point differend deadlines on different ARs? Would be great (in this case) to only get units with longer cruch times..
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Questions and Answers : GPU applications : Number of cores to keep GTX295s busy?


 
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