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When corrupted results get validated...
sunu:
Unfortunately they are many. Yesterday I had another one but today it must have been deleted from the database and I can't post the link.
perryjay:
I think they are trying to keep it a secret!! Looks like as soon as we post a link to one of them they erase it from the database. ;D Must be a conspiracy.
Richard Haselgrove:
Could people spotting / reporting this problem please check and report the hardware involved?
I have a horrible feeling that people who just throw a Fermi card into a host and attach, are being issued with the stock Cuda23 application and immediately start trashing WUs.
But we need robust reports from reliable witnesses....
Jason G:
--- Quote from: Richard Haselgrove on 05 Jun 2010, 12:18:43 pm ---...I have a horrible feeling that people who just throw a Fermi card into a host and attach, are being issued with the stock Cuda23 application and immediately start trashing WUs....
--- End quote ---
From the few I saw, that was the case (470's & 480'wingmen trashing & validating against one another). I do suspect that was the 'errors with 2.3' situation that Eric alluded to a while back (around fermi release IIRC), which might suggest some sortof flag raised somewhere that let him know, like the noisy wus figure that used to show somewhere (?) . Further conjecturing (& hoping), some double -9 intercept may be in place, explaining the rapid result removal sooner than the normal 24 hour assimilation/deletion period. If that's the case, I hope they put those through again for reprocessing.
Richard Haselgrove:
Eric's comment (he actually said cuda24, which we're taking to be a typing error) was made on 20 May - well, actually late afternoon 19 May in his time zone - in the course of a conversation with David and me about Fermi issues at Beta. It came just after the corrected Fermi 6.10 application version was loaded for stock download at Beta.
The 'noisy WUs' figure is still showing on the Science status page. Since it's "science", I assume it's driven off the validated results transferred from the BOINC to the science database. Historically, it's been 'about 5%'. Last time I looked, it was down to 1.2%, which I took as a compliment to the Radar removal team. Now, it's showing as 4.8%, which probably reflects the scale of the "pseudo -9" problem.
I'm coming to the conclusion that nobody saw this one coming. I certainly hadn't thought about it until this afternoon, and yet I've been working closely with David / Eric / Jason on BOINC+Fermi issues. Even when I told David (much to his surprise) that the Fermi card wouldn't run the cuda23 app at Beta (during the quota overflow discussion), the penny didn't drop that the situation was already building up at Main.
I have now suggested - on boinc_dev, which is the wrong mailing list, but the only one we've got in the absence of an official seti_technical channel - that 6.10_fermi should be installed as a stock application at Main. I think that's the only sensible way to rescue the situation.
Let's hope that no eager young project puppy runs into the lab this afternoon and loads a pristine box of tapes.....
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