Message boards : Number crunching : Database problem?
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Magnus Kessler

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Message 9002 - Posted: 28 Jul 2005, 16:13:11 UTC
Last modified: 28 Jul 2005, 16:14:23 UTC

Is there currently a problem with how work units are attributed to crunchers? After a period of outage at lhc last night I suddenly have about 20 work units on my account that were never downloaded by the client.

Maybe related, there also seems to be an issue with the calculation of credits. Work unit 358773 and 357447 have been validated and assigned less than 0.15 while all clients claimed much more.

Thanks for looking into this.
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Profile Chrulle

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Message 9003 - Posted: 28 Jul 2005, 16:17:20 UTC

This can happen if there are no results that agree on a canonical result. A weigthed average of credit is then assigned depending on how much the results differ.

Chrulle
Research Assistant & Ex-LHC@home developer
Niels Bohr Institute
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Magnus Kessler

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Message 9004 - Posted: 28 Jul 2005, 16:26:05 UTC - in response to Message 9003.  

Sorry about the noise about credit calculation. I misread the processing time column for the credit column for these two results. Processing time was right in the middle of my usual claimed credit range. Doh!

The mystery about the work units that never ended up on my machine remains, though.
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Profile Paul D. Buck

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Message 9007 - Posted: 28 Jul 2005, 19:57:37 UTC

There is a "handshake" bug that interferes with the exchange of information twixt the servers and you ... there is a fix in the works and I forget which versions are most affected.

We docukmentors are thinking on making a documentation of things hlike thsi .. ah dear, first burned lcunghand now cant types ,, rats,,,
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Message boards : Number crunching : Database problem?


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