empty work units?

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Message 93941 - Posted: 2 Apr 2005, 10:12:16 UTC

I've had a few like this one, two in a row today:
http://setiweb.ssl.berkeley.edu/workunit.php?wuid=11947980

It's like there was no data to crunch.

Any ideas?

cheers :)
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Profile Thierry Van Driessche
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Message 93942 - Posted: 2 Apr 2005, 10:18:40 UTC
Last modified: 2 Apr 2005, 10:30:20 UTC

This is related to following message:

SETI@Home Informational message -9 result_overflow
NOTE: The number of results detected exceeds the storage space allocated.

From Paul's FAQ:

Quote:
This informational messages tells you that the analysis of this particular Work Unit has resulted in so many, Gaussians, Pulses or Triplets that the processing is being cut short and the work unit requires further analysis by the mother ship (UC Berkeley).

This is not an error. This is not a bad Work Unit. It is, however, a Work Unit that may have so much noise that it is not worth looking at at all, or that it may be the signal from ET. Most likely it is the former and not the latter. Sorry about that ...

End quote

S@H Classic was crunching this kind of WU up to the end, Boinc has a build in feature that stops crunching this WU at the moment "The number of results detected exceeds the storage space allocated". This can be after some seconds or minutes, it can even be at 00:00:00 seconds.

You might want have a look to a typical example for this kind of overflow.

Read the News at the homepage
Have a look at the Technical News
Look if your question is not answered at the Boinc Wiki

Best greetings, Thierry
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Message 93948 - Posted: 2 Apr 2005, 10:50:39 UTC
Last modified: 2 Apr 2005, 10:52:02 UTC

And here's an atypical example. Note that all "successful"/"done" WUs are few and far between, while the gap is filled with "client errors". Clearly something is wrong.

[Addendum] And, yes - That's my machine. I'm tracking down the problem...
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Message 93949 - Posted: 2 Apr 2005, 11:00:28 UTC - in response to Message 93942.  
Last modified: 2 Apr 2005, 11:01:19 UTC

> This is related to following message:
>
> SETI@Home Informational message -9 result_overflow
> NOTE: The number of results detected exceeds the storage space allocated.
...
> Quote:
> [i]This informational messages tells you that the analysis of this particular
> Work Unit has resulted in so many, Gaussians, Pulses or Triplets that the
> processing is being cut short and the work unit requires further analysis by
> the mother ship (UC Berkeley).
>
> This is not an error. This is not a bad Work Unit. It is, however, a Work Unit
...
Two thank-yous. First, for giving me the website address for the BOINC handbook thingie, which I now have bookmarked in my BOINC internet folder (which just keeps getting bigger). :)

Second thank you is for posting the explanation as well as giving the link. I did look in the Messages section of the BOINC software to see if it put that error message in and didn't see it there. Where does this message show up, as I also cannot find it in the WU results at the server end either?

Sorry for the italics, I came in to edit this post to turn them off but I can't work out how.

cheers
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Profile Thierry Van Driessche
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Message 93953 - Posted: 2 Apr 2005, 11:11:37 UTC - in response to Message 93949.  
Last modified: 2 Apr 2005, 11:12:28 UTC

> Where does this message show up, as I also cannot find it in the WU results at the server end either?

It shows up when you look at Your results and then go to a "Result ID" at the left of that page.

Once the WU is finished, you can have a look for this kind of message in the tab "Messages" of Boinc as long as you don't shut the Manager.

Error messages are also stored in some add-ons like BoincLogX that you can download from here.
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Message 93956 - Posted: 2 Apr 2005, 11:15:48 UTC - in response to Message 93953.  

> > Where does this message show up, as I also cannot find it in the WU
> results at the server end either?
> It shows up when you look at <a> href="http://setiweb.ssl.berkeley.edu/results.php?hostid=624977">Your
> results[/url] and then go to a "Result ID" at the left of that page.

Thanks, found it there where you said :)
>
> Once the WU is finished, you can have a look for this kind of message in the
> tab "Messages" of Boinc as long as you don't shut the Manager.

I had a look, but it only mentions starting the WU and then uploading it, no mention of errors at all (only telling me it's to early to reconnect!!)

> Error messages are also stored in some add-ons like BoincLogX that you can
> download from <a> href="http://setiweb.ssl.berkeley.edu/download_network.php">here[/url].
Thanks for the additional reference.

That answers my questions nicely. I owe you a cup of coffee when you're next in New Zealand. :) :)
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Message 93958 - Posted: 2 Apr 2005, 11:23:26 UTC - in response to Message 93949.  

Use </i> to stop the italics.
Less-than sign, a raising slash, the letter "I", and the greater-than sign.
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Message 93959 - Posted: 2 Apr 2005, 11:26:36 UTC - in response to Message 93956.  
Last modified: 2 Apr 2005, 11:27:30 UTC

> > Once the WU is finished, you can have a look for this kind of message in
> the
> > tab "Messages" of Boinc as long as you don't shut the Manager.
>
> I had a look, but it only mentions starting the WU and then uploading it, no
> mention of errors at all (only telling me it's to early to reconnect!!)

Yes, you are right. I had a WU like that yesterday and I can't find the overflow message as well.

Seems v4.25 don't mention this kind of message, I was quite sure earlier versions did.
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Message 93967 - Posted: 2 Apr 2005, 11:45:52 UTC - in response to Message 93956.  

> That answers my questions nicely. I owe you a cup of coffee when you're next
> in New Zealand. :) :)
>
New Zealand??? Say Hi, to my cousin Joe if you're ever in Wellington, Upper Hut, Thanks ahead of time. I never get to see him.

tony
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Profile Paul D. Buck
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Message 93979 - Posted: 2 Apr 2005, 12:13:54 UTC - in response to Message 93949.  

> Two thank-yous. First, for giving me the website address for the BOINC
> handbook thingie, which I now have bookmarked in my BOINC internet folder
> (which just keeps getting bigger). :)
>
> Second thank you is for posting the explanation as well as giving the link. I
> did look in the Messages section of the BOINC software to see if it put that
> error message in and didn't see it there. Where does this message show up, as
> I also cannot find it in the WU results at the server end either?

All of the KNOWN messages are in the FAQ and there is a list of them in the BOINC Owner's Manual. So, you can browse them in either place ... The BOINC Owner's Manual has them in several lists, all of them, error only, warning only, etc.

> Sorry for the italics, I came in to edit this post to turn them off but I
> can't work out how.

That is contained in the HTML Lesson ... goto my site and use SEARCH ... have fun! :)




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Message 94152 - Posted: 2 Apr 2005, 22:51:37 UTC - in response to Message 93967.  

> New Zealand??? Say Hi, to my cousin Joe if you're ever in Wellington, Upper
> Hut, Thanks ahead of time. I never get to see him.

Hi Tony, central Upper Hutt is around 10 mins from where I live. And they have very nice cafes out there now, the coffee is *astounding*.

For the curious, Wellingtonians (Upper Hutt is a city in the greater Wellington area) are *very* particular about their coffee...

BTW Upper Hutt is Starbucks free at the moment, but I can't see that lasting.

cheers
Michelle
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Message 94158 - Posted: 2 Apr 2005, 22:54:41 UTC - in response to Message 93979.  

...
> All of the KNOWN messages are in the FAQ and there is a list of them in the
> BOINC Owner's Manual. So, you can browse them in either place ... The BOINC
> Owner's Manual has them in several lists, all of them, error only, warning
> only, etc.
>
> That is contained in the HTML Lesson ... goto my site and use SEARCH ... have
> fun! :)
Paul, thanks so much for putting up the site and taking the time to come in here and post as well. :)

Looks like it's coffees all around on me!! :) :)
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Message 94170 - Posted: 2 Apr 2005, 23:21:39 UTC - in response to Message 94158.  

> Looks like it's coffees all around on me!! :) :)
>
are you paying for it with the OLD huge copper penny, and 1/2 penny, or are you using the new coinage? My cousin married a resident and moved there in December. he seems to enjoy it.

sorry this is off topic. I will stop now

tony
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Message 94212 - Posted: 3 Apr 2005, 1:05:45 UTC - in response to Message 94158.  

> ...
> Paul, thanks so much for putting up the site and taking the time to come in
> here and post as well. :)

Coffee makes me grumpy ... I had a sip 35 years ago and it still has not worn off yet ... Grrrrr... :)

I do this to "get-out-of-the-house" ...

But, that may come to a halt too ... Dell has shipped my computer ... should be here Monday ... I wonder if I can wait that long! :)


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Message boards : Number crunching : empty work units?


 
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