Forum > GPU crunching

Latest drivers (NVidia and ATI)

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Jason G:
Yup, looking good.

popandbob:
I'm now seeing a few Validation inconclusive's. These have different numbers of reported signals

http://setiathome.berkeley.edu/workunit.php?wuid=483603078
http://setiathome.berkeley.edu/workunit.php?wuid=484145164
http://setiathome.berkeley.edu/workunit.php?wuid=484082989
http://setiathome.berkeley.edu/workunit.php?wuid=484082989

Lots more are reporting the same signals but are still V.I.'s
Right now there are no invalids however.


BTW has anyone noticed the length of the AR 0.267 tasks? I've only had 2 but the claimed credit was over 200! 197 given.

Bob

Jason G:
hmmm, since faster processing may mean more heat, it might be worth running 'Scan for Artefacts' mode for a while in AtiTool (works on nvidia cards despite the name) to see if the card's getting a bit unstable when warm, or on some performance edge with memory or core clocks etc...  1 hour without a single artefact chime is what I aim for.

http://www.techpowerup.com/atitool/

mr.mac52:
For what it's worth, the first attemp to upgrade to 190.38 failed, no error message was noted but when I rebooted it was still the older version.  I down loaded another copy of the installation file from Nvidia and ran it again and the second time it worked fine.  My system seems to be faster with CUDA 2.3 and is running error free on an GTS8800.  I'm considering upgrading to get more compute power for my CUDA tasks.

k6xt:
I'm getting a video card, one of the less expensive types. It will be a MSI card, so my MSI mobo monitor will cover the GPU as well. I have two in mind - which will provide best CUDA performance?

N275GTX @666MHz, 896MB GDDR3 ram@2322MHz, 240 stream processors for $200

N260GTX @655MHz, 1792MB DDR3 ram@2100MHz, 216 stream processors for $295

So the questions are, are stream processors important to CUDA? Is less but faster memory better than more but slower memory? Is there something important to CUDA in the 275 vs 260?

Hope its OK on this thread.

Thanks
Art

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