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No trickles on HadCM3 Coupled Model?

No trickles on HadCM3 Coupled Model?

Questions and Answers : Windows : No trickles on HadCM3 Coupled Model?
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old_user444429

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Message 28134 - Posted: 26 Apr 2007, 14:26:18 UTC

Hi.
I just started and my computer has been crunching a HadCM3 5.4 WU for about 14h CPU time now and is some 10 Months into the model. Shouldn\'t it have produced some trickles by now? It says a trickle per month on the web page? Are they just not showing up or is there something going wrong that I should investigate?
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Les Bayliss
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Message 28137 - Posted: 26 Apr 2007, 14:39:27 UTC

I\'m not sure which web page you\'re looking at, but it could be the one about slab models which were different.

The TCMs trickle once a year, on December 4th; a larger amount of data is uploaded as a zip file every 10 years, (along with a trickle), and a restart dump every 40 years.

Trickles may take a little while to show up on your Account page if the servers are busy, and the credit program only runs once a day.

My 3.2GHz P4, running 24/7, with no other projects, takes a bit over 15 hours per model year.


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Message 28146 - Posted: 26 Apr 2007, 18:01:46 UTC

I was looking at http://climateapps2.oucs.ox.ac.uk/cpdnboinc/quick_faq.php
Section labled \'so how long do these trickles take...\'
subsection Transient coupled models.
That left me with the impression, that it would trickle every month.
Thanks for the rectification.
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Les Bayliss
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Message 28151 - Posted: 26 Apr 2007, 20:23:12 UTC

OK, that\'s under section 1.3.2
And it\'s definately an Oops.
We had 3 diferent projects running at about the same time, and the person who did the update to the website back in 2005/6 must have \'gotten 2 pages stuck together\', sort of thing.
I\'ll report it to the team.


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crandles
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Message 28157 - Posted: 26 Apr 2007, 22:14:16 UTC

I think that one is my fault. I wrote that for the wiki during beta testing when the trickle frequency was monthly. When the transient model was released the trickle frequency changed to yearly. It took me some time to spot the wiki needed changing and by the time it was brought to my attention, the wiki had been used as a basis for that faq. Sorry about that.

http://boinc-wiki.ath.cx/index.php?title=Climateprediction_FAQ#Why_are_the_work_units_so_big.3F

probably wants a bit of work again to put the transient model information first and archive the slab model information. (Though there may soon be some slab models again with better parameter values.)
Visit BOINC WIKI for help

And join BOINC Synergy for all the news in one place.
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Message 28891 - Posted: 22 May 2007, 16:36:46 UTC

22/05/2007 6:29:31 PM|climateprediction.net|Sending scheduler request: To send trickle-up message
22/05/2007 6:29:31 PM|climateprediction.net|(not requesting new work or reporting completed tasks)
22/05/2007 6:30:35 PM|climateprediction.net|Scheduler request failed: HTTP internal server error
22/05/2007 6:30:35 PM|climateprediction.net|Deferring communication for 22 min 36 sec
22/05/2007 6:30:35 PM|climateprediction.net|Reason: scheduler request failed
I have had this problem before and had detached as these messages just kept coming. Is the HTTP error something that may eventually be corrected, or am I wasting my computer time by continuing this project? I have done 35 hours and am past the yearend.
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Message 28893 - Posted: 22 May 2007, 16:57:24 UTC
Last modified: 22 May 2007, 16:57:46 UTC

Hi Bellator,

No, you\'re most definitely not wasting your time. The trickles will go up eventually, multiple trickles if need be, and they\'ll all be counted and useful.

There was a server problem a couple of weeks ago but things are ok now so it could be just a temporary glitch. Just let it keep trying until it succeeds but don\'t detach or you\'ll lose the model and all the work that you\'ve already done.
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Profile MikeMarsUK
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Message 28894 - Posted: 22 May 2007, 17:27:07 UTC


Are you behind a firewall or proxy?


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Message 28897 - Posted: 22 May 2007, 19:13:50 UTC

yes, I have Karpesky, but there is no problem there. I have compared my account with that of others crunching the same wu and it appears we all show the same data, so I will just be very patient this time around.
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Richard Haselgrove

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Message 28914 - Posted: 23 May 2007, 8:11:08 UTC - in response to Message 28894.  
Last modified: 23 May 2007, 8:32:54 UTC


Are you behind a firewall or proxy?


Mike,

Bellator\'s log Scheduler request failed: HTTP internal server error is significant. It shows that a process failed on the servers at Oxford.

There are significant problems with the BOINC back-end code at the moment. SETI@home deployed the \'latest version\' a week ago, and it broke with exactly this error for a significant number of users. The precise mode of failure (anonymous platform mechanism) is unlikely to be relevant for CPDN, but it\'s worth a look.

SETI tried to deploy a fix last night, but couldn\'t even get it to run (\"segfaults in the scheduler CGI\" - Eric Korpela). I think it would be a good idea if someone could just check that none of these problems have spilled over into the version of the BOINC server that CPDN currrently uses.

I don\'t know my way round the personnel at Oxford well enough to target this message properly - could you pass it on to the right person, please?
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Message 28915 - Posted: 23 May 2007, 8:31:30 UTC - in response to Message 28914.  


I don\'t know my way round the personnel at Oxford well enough to trget this message properly - could you pass it on to the right person, please?


Done, thanks.

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Message 28919 - Posted: 23 May 2007, 10:56:07 UTC



I have a vague memory of a client-side problem causing scheduler errors, this was back when account management systems were first introduced, and something was being corrupted.


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Message 28921 - Posted: 23 May 2007, 12:37:13 UTC - in response to Message 28914.  
Last modified: 23 May 2007, 12:42:17 UTC

Bellator\'s log Scheduler request failed: HTTP internal server error is significant. It shows that a process failed on the servers at Oxford.

It\'s not guaranteed to be a failure at Oxford. Some proxy servers (incorrectly) generate an HTTP 500 response when DNS lookups time out.

From RFC 2616:
10.5.5 504 Gateway Timeout

The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the URI (e.g. HTTP, FTP, LDAP) or some other auxiliary server (e.g. DNS) it needed to access in attempting to complete the request.

Note: Note to implementors: some deployed proxies are known to return 400 or 500 when DNS lookups time out.

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Message 28930 - Posted: 23 May 2007, 18:23:45 UTC

Happy to accept the alternative possibilities. But since there has been a recent BOINC server code change (part of the preparations to support the forthcoming BOINC v5.10.x range, now in Alpha testing) which definitely has caused this error, I thought it was worth flagging up - no harm in looking!
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Message 28961 - Posted: 25 May 2007, 8:33:29 UTC

It is now May 25 and my statistics have not updated since May 19. I have the same problem with SETI - no update since May 22. Both contact the server many times a day. What should I do? Wait and hope it will rectify itself some day or just detach and try something else (I am thinking of opening a bottle of Rosé and sit on my terrace, contemplating this frustrating turn of events).
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Message 28962 - Posted: 25 May 2007, 9:17:07 UTC - in response to Message 28961.  

It is now May 25 and my statistics have not updated since May 19. I have the same problem with SETI - no update since May 22. Both contact the server many times a day. What should I do? Wait and hope it will rectify itself some day or just detach and try something else (I am thinking of opening a bottle of Rosé and sit on my terrace, contemplating this frustrating turn of events).


Tne minutes later: SETI has suddenly contacted the server and my statistics have been update. So there\'s hope for CPDN?

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Message 28965 - Posted: 25 May 2007, 13:07:50 UTC
Last modified: 25 May 2007, 13:21:07 UTC

Possibly. The project servers haven\'t heard anything from your model since the 19th May. Any idea what changed on the 19th May? (new version of something, windows update, different firewall settings, ... ?)

* Are you connecting via a proxy server? (usually the answer is \'yes\' if you\'re on a work computer or a university computer, usually \'no\' if this is a home PC).

We can talk you through setting up debugging on http transfers, this will give extra information but I\'m not sure if there\'s much point because there\'s not much which can be changed on the Boinc side.

It might be worth changing Boinc\'s protocol to HTTP1.0 rather than 1.1, the instructions are in the following post: (it\'s quite tricky so don\'t hesitate to ask for help).

http://boincfaq.mundayweb.com/index.php?language=1&view=91

<http_1_0> Set this flag to use HTTP 1.0 instead of 1.1 (this may be needed with some proxies).


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Message 28966 - Posted: 25 May 2007, 13:22:39 UTC - in response to Message 28965.  


Possibly. The project servers haven\'t heard anything from your model since the 19th May. Any idea what changed on the 19th May? (new version of something, windows update, different firewall settings, ... ?)

* Are you connecting via a proxy server? (usually the answer is \'yes\' if you\'re on a work computer or a university computer, usually \'no\' if this is a home PC).

We can talk you through setting up debugging on http transfers, this will give extra information but I\'m not sure if there\'s much point.


No, I cannot think of anything special. I have done the upload handler test and I get a -1. I have 20 projects which all update regularly (there was a problem with SETI but that has corrected itself today. The real problem I think is more basic, because this is at least the fourth or fifth time I have restarted CPDN. Each time in the past, the project runs OK for three, four days, then \"freezes\" as it has done now. I use Karpesky, but have not changed any firewall settings. I use a home computer.
One more thing: I am running two work units at the same time (insurance, you know) and the one shows \"disturbed parameters\" the other nothing. Right now, each has been going for close to 50 hours. Would hate to detach again.

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Message 29005 - Posted: 27 May 2007, 9:40:06 UTC


Could you give that HTTP 1.0 thing a try to see what happens?
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Message 29009 - Posted: 27 May 2007, 11:13:07 UTC - in response to Message 29005.  


Could you give that HTTP 1.0 thing a try to see what happens?


If this is addressed to me, I am afraid I do not understand...
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