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Sent time: 01/01/1970 00:00:00 / Status: Other

Hi, fellow crunchers!

Just out of curiosity. Is the 3rd WU a bug?

Workunit Status

Project Name: Discovering Dengue Drugs - Together
Created: 04/16/2008 07:46:51
Name: dddt0501n0792_100418
Minimum Quorum: 2
Initial Replication: 3



dddt0501n0792_ 100418_ 0-- Valid 04/17/2008 14:23:49 04/19/2008 20:21:06 3.65 51.9 / 56.4
dddt0501n0792_ 100418_ 1-- Valid 04/17/2008 14:17:05 04/20/2008 01:26:56 8.67 61.0 / 56.4
dddt0501n0792_ 100418_ 2-- Other 01/01/1970 00:00:00 01/01/1970 00:00:00 0.00 0.0 / 0.0


Thanks!
[Apr 21, 2008 6:01:07 PM]   Link   Report threatening or abusive post: please login first  Go to top 
jonathandl
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Re: Sent time: 01/01/1970 00:00:00 / Status: Other

The sending of a third copy of the workunits is not a bug; see this post:

https://secure.worldcommunitygrid.org/forums/wcg/viewthread?thread=19803

I am not sure that I fully understand the rationale; nevertheless, increasing the number of copies assists in ensuring accuracy. Now the timestamp, however – that might be a bug.
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[Edit 3 times, last edit by jonathandl at Apr 21, 2008 10:18:08 PM]
[Apr 21, 2008 10:13:42 PM]   Link   Report threatening or abusive post: please login first  Go to top 
Former Member
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Re: Sent time: 01/01/1970 00:00:00 / Status: Other

What's up with that "01/01/1970" date? thinking
[Apr 22, 2008 2:02:49 AM]   Link   Report threatening or abusive post: please login first  Go to top 
retsof
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Re: Sent time: 01/01/1970 00:00:00 / Status: Other

That date is 1 AD Microsoft. If somebody forgot to set their computer clock, the date can show up like that.
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[Apr 22, 2008 2:47:06 AM]   Link   Report threatening or abusive post: please login first  Go to top 
jonathandl
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Re: Sent time: 01/01/1970 00:00:00 / Status: Other

Yes, but aren't the Sent Times and Times Due set by the server?
Anyhow, I like the idea of sending some jobs to more than two computers; FWIW I think that even after rolling out the new self-validating work units, initially they should have a quorum of 2, and only go to 1 after wider experience with these new work units "in production," to make sure that all WUs that pass self-validation are truly valid.
[Apr 22, 2008 3:01:58 AM]   Link   Report threatening or abusive post: please login first  Go to top 
retsof
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Re: Sent time: 01/01/1970 00:00:00 / Status: Other

last year, I was trying to move some BOINC jobs around between computers ... and I got 1/1/1900.

It is easy to mess up some local times and miss a due date.
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[Apr 22, 2008 3:17:44 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Sekerob
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Re: Sent time: 01/01/1970 00:00:00 / Status: Other

Pretty sure 1/1/1970 is a BOINC/Unix default time. If a work unit goes into the feeder and is subsequently canceled before submission to client, it gets that 'unassigned' date. If you look in your message log AND you've never changed the default profile, it will show there as 1/1/1970 too!

Sort of scrunched together from little info pieces..

Bet you 1 authoritative person will show, eventually to give the final and unchallengeable opinion.
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[Apr 22, 2008 6:41:14 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: Sent time: 01/01/1970 00:00:00 / Status: Other

It's the Unix epoch. If you set the time to zero, that's the date you get.
[Apr 22, 2008 6:55:11 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Former Member
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Re: Sent time: 01/01/1970 00:00:00 / Status: Other

Pretty sure 1/1/1970 is a BOINC/Unix default time. If a work unit goes into the feeder and is subsequently canceled before submission to client, it gets that 'unassigned' date.

That sums it up. biggrin

Guys, thank you very much for your replies!
[May 4, 2008 8:10:12 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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