Forum > GPU crunching

x38g reports

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Jason G:

--- Quote from: Pepi on 19 Jun 2011, 09:29:07 am ---If I may write some words :)
--- End quote ---

Thanks Pepi, yup we tracked down the need for a voltage tweak for those in posts & it makes sense.

I'm now currently poking at a different kind of error that occurs on some GPUs *sometimes*.  As per heinz' first report of a FFT error, noting that my 260 sees the same I have modified some code & they seem to have gone away on mine.  That's the last major 'niggle' I've found under V6 operation so far, and my p4 with GTX 260 seems to have come good for ~24 hours of operation, which I'm keeping an eye on to see if it is really solved.

Jason

perryjay:
Hey Jason, we validated. You got the canonical result after the fourth guy got reported.   :o

http://setiathome.berkeley.edu/workunit.php?wuid=757762089


In case anyone is wondering why I posted this, as far as I know it's the first where two of us were running the new installer. Jason G was the first and I came in third. We wondered why it didn't decide then to validate instead of sending out to another wingman.

Jason G:
Woohoo!, Yay me  ;D

_heinz:
Hi Jason,
after 30 hours the ION ended the wu resultid=1956143930

have a look at it: -177 (0xffffffffffffff4f)

heinz

Jason G:
Yeah that underreporting of VRAM is a problem for you for sure:


--- Quote ---setiathome_CUDA: Found 1 CUDA device(s):
  Device 1: ION, 64 MiB, regsPerBlock 8192
     computeCap 1.1, multiProcs 2
     clockRate = 1200000
setiathome_CUDA: device 1 not have enough available global memory. Only found 67108864
In cudaAcc_initializeDevice(): Boinc passed DevPref 1
setiathome_CUDA: CUDA Device 1 specified, checking...
   Device cannot be used
SETI@home NOT using CUDA, falling back on host CPU processing
--- End quote ---

It actually did what it's supposed to.  which is a surprise, as I'm still probing at the memory initialisation sequence.  Resolving why your ION only reports 64MiB should solve your issue.

Jason

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