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Posts by Carolina Calling

Posts by Carolina Calling

1) Questions and Answers : Getting started : Cannot add project using https://climateprediction.net/ (Message 64597)
Posted 8 Oct 2021 by Carolina Calling
Post:
As my BOINC client has been unable to connect to ClimePrediction for quite a while. I removed the project and attemptedd to dd the project again. When I do this, it processes for a short time and then fails. The log contains:

08-Oct-2021 18:50:15 [---] Fetching configuration file from https://climateprediction.net/get_project_config.php
08-Oct-2021 18:50:16 [---] Project communication failed: attempting access to reference site

Obviously, as I'm posting this, I can get to the InterNet. Has anyone got an idea what's happening?
2) Questions and Answers : Windows : Problems with HTTPs (and trickle-up?) (Message 58224)
Posted 23 May 2018 by Carolina Calling
Post:
I missed something in the earlier post:

>It's only the "Reporting" that doesn't currently work, because there's no server >for them to go to.

This is the state of my current work unit. Should I just abort it (and assume
I've gotten all the credit I'm going to get (Right?))?
3) Questions and Answers : Windows : Problems with HTTPs (and trickle-up?) (Message 58223)
Posted 23 May 2018 by Carolina Calling
Post:
...
We're currently running on the backup server, who's address is: http://ithaqua.oerc.ox.ac.uk/cpdnboinc/
...

OK, does this mean, in account_climateprediction.net.xml,
we should be using a different
<master url>What goes here now?</master url>
for <project name>climateprediction.net</project name>?

Or should we leave account_climateprediction.net.xml alone?

Sorry I missed the post in "Number Crunching". I would have
thought something like this would have been in "News"
(which I did check) or perhaps in another thread,
e.g. "Server Problems"?

Or am I just thinking too sequentially?
4) Questions and Answers : Windows : Problems with HTTPs (and trickle-up?) (Message 58220)
Posted 22 May 2018 by Carolina Calling
Post:
At the suggestion of the Einstein at Home project, I recently updated my BOINC security certificates. Also, Mozilla Firefox has updated their certificates and I cannot connect to you all using HTTPS. Lastly, I cannot use Microsoft Edge nor Microsoft Internet Explorer to contact https://www.cpdn.org/cpdnboinc/. Does HTTPS ever work getting to www.cpdn.org/cpdnboinc?

Nor are my trickle-up messages getting through. Is this a coincidence or a related issue? Is there a way to tell why my trickle-up is not getting through?
5) Message boards : Number crunching : MORE DOWNLOAD ERRORS (Message 47873)
Posted 26 Dec 2013 by Carolina Calling
Post:
I believe that's "figgy pudding"... as in made from figs.

A belated Merry Christmas to all (who care to hear it)!
May your New Year be more fruitful (pun intended) than
the last!
6) Message boards : Number crunching : Task won't finish? (Message 47784)
Posted 13 Dec 2013 by Carolina Calling
Post:
In BOINC, there is a tag: Tools->disk and memory usage->tasks checkpoint to disk at most every (seconds)

I would think that this has to do with restarting tasks that have been iterrupted by, say, a power outage. That might take care of BOINC's problems with restarts.

However, if the code doesn't properly initialize (we Yanks don't know how to spell, do we) the Windows C++ runtime on a restart and properly keep track of intermediate states, it might behaved exactly as described... we are talking about a work unit restart from available data after all. Certainly no state information is left from before the crash other than what the code writes out as it goes along. It's just the information is not sufficient about once in three or four crashes. (i.e. it doesn't do it every time...) Also, the flaw might just as well be in the runtime, could it not? We'll see what Windows updates will bring... My point was to make these failures known to the community. This is not about blame.

BTW, depending on the capacitance built into a system's power supply, once DC low is asserted, a system might accomplish rather a lot in the milliseconds it has left... no disk writes though (sans a SSD) ... a disc might be able to park it's heads for instance... certainly not a proper checkpoint of the CP.N code (or am I just being argumentative? :)

I really do appreciate the help about the hung work unit...it's gone. Thanks again!

Good to know about the multi-threading. Sad though. I wouldn't want to rewrite 10^6 lines of code just for that either.

It seems that Father Christmas is going to be kind. I'm getting a new UPS battery...

(I probably should have made this another tread, sorry.)
7) Message boards : Number crunching : Task won't finish? (Message 47782)
Posted 12 Dec 2013 by Carolina Calling
Post:
It's completed, so Abort it.
Some of these models just won't quit when they finish.

Credit is given for each trickle_up file as it's received, so if they've all been sent, you already have the credit.

Good to know!  Thank you!  I'll dispose of the husk...


Does anyone have information/suggestions on the second issue? i.e. Work units not restarting after a power glitch due to something being not quite right with the Windows C++ runtime library? (I'd have said squirrelly but it might not translate well...) Is there a way to restart it?

Last but not least, can CP.N work units use more than one thread/cpu? How would one accomplish it?
8) Message boards : Number crunching : Task won't finish? (Message 47773)
Posted 11 Dec 2013 by Carolina Calling
Post:
I too have a never ending work unit: hadcm3n_o1z5_2020_40_008410991_2 (8561847)
It has submitted 20 trickle-ups and the listed number of timesteps are 1,036,800. No trickle-ups since 28 Nov 2013 09:47:42 and has been at 100% completion. All it does it add seconds to its count and occupy 0% of one of my CPUs (I have eight) using up a slot. Should this be aborted and will I get credit for the work unit? I want it to finish before I update to BOINC 7.2.33.

Also, when the power blips and crashes my Windows XP system, the CP.N work units die with an "error while computing". It seems to be an error in the Windows run-time library loaded with the task. It doesn't recover and the work unit dies a horrible death. (Yes, I could replace the battery in my UPS and all this will go away but no other BOINC task seem to have this sensitivity. (I'll check with Santa about the battery...[singing] all I want for Christmas is my UPS...))




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