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ATi 58x0/59x0 DP problem and science

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Profile cenit

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Message 38190 - Posted: 6 Apr 2010, 12:59:37 UTC
Last modified: 6 Apr 2010, 13:00:06 UTC

It's just been found that ATi app on 58x0 and 5970 has produced until now wrong results.

Hopefully, according to Gipsel/CP, the bug will be solved today or tomorrow.
I'm a little bit disappointed about the fact that we discovered it only now (quorum is really needed on BOINC!!). But i'm not disappointed with Gipsel, of course. If we want to find a culprit, I would point toward milkyway admins...
Anyway, do we have to re-do all the calculations made from the introduction of cypress-type gpu (7 months) to ensure results got so far?
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Emanuel

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Message 38193 - Posted: 6 Apr 2010, 13:27:12 UTC

I think they will probably opt to move on to the new Milkyway background models they've been setting up. But I agree that this problem makes it painfully clear that we always have to be on the look-out for structural issues of this kind; in a way we can almost be thankful to the scammers for causing the validator to be revisited :s
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Message 38283 - Posted: 7 Apr 2010, 6:44:21 UTC - in response to Message 38193.  

why Blurf did move this thread from Science to Number Crunching without telling anything? My thread is not about crunching numbers, but about science problems and results NOT aquired up until now (and going on).
Is this a problematic thread if exposed in science (where there isn't the same activity level as here and so thread are exposed for longer period)??
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Profile The Gas Giant
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Message 38284 - Posted: 7 Apr 2010, 7:06:31 UTC

I think there has been sufficient exposure in both the News forum and the NC forum for folks to be aware of the problems - and you are quite correct in that a very large amount of data crunched by the 58xx series cards is useless. I wonder how this has affected the science.
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Message boards : Number crunching : ATi 58x0/59x0 DP problem and science

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