climateprediction.net home page
Posts by old_user34261

Posts by old_user34261

1) Message boards : Cafe CPDN : French-Canadian Radio Programme about Climate Change (Message 9318)
Posted 14 Feb 2005 by Profile old_user34261
Post:
Thank you for the link Hannah,

They happen to have a number of interesting reports about Climate Change actually. I know it is all in French but even if one does not understand la Langue de Moliere, one cannot possibly not fall in love with the beautiful accent of our good Canadian friends !!!

Congratulations to Nick whose French is impecable !

David.
2) Questions and Answers : Macintosh : Need help getting started - Mac OSX 10.3.7 (Message 9215)
Posted 12 Feb 2005 by Profile old_user34261
Post:
Hello Marcia,

There is a document explaining the installation of the program on Mac OS <a href="http://boinc.berkeley.edu/client_mac.php">here</a>.

Once you have gone through the basic installation steps described in the document above you can start Boinc with the Terminal as follows :

cd to the folder where you have installed Boinc
Type ./boinc_4.19_powerpc-apple-darwin

Here is an example from my terminal:


Last login: Thu Feb 10 19:59:02 on console
Welcome to Darwin!
HomeG5:~ dc$ <B>cd documents/dev/projects</B> (replace 'documents/dev/projects' with your own installation folder)
HomeG5:~/documents/dev/projects dc$ <B>./boinc_4.19_powerpc-apple-darwin</B>
2005-02-12 18:49:59 [---] Starting BOINC client version 4.19 for powerpc-apple-darwin
Enter the URL of the project:
Paste the account key here:


Once you have entered the URL of the project and pasted your account key, the Model starts. You can then minimize the Terminal and leave it to work.

You might want to consider taking a look at the following for further information :

<a href="http://climateapps2.oucs.ox.ac.uk/cpdnboinc/team_display.php?teamid=62">the MacNN Team's web site</a>

<a href="http://climateapps2.oucs.ox.ac.uk/cpdnboinc/forum_help_desk.php">Macintosh section of Questions and Problems</a>

A lot of teams have wonderful web sites with various information about the project that you might find very useful too.

I hope this will help.

Good luck.

David.
3) Questions and Answers : Macintosh : System crashed, on restart BOINC downloads new model, won't work on old one (Message 9101)
Posted 10 Feb 2005 by Profile old_user34261
Post:
Hello,

I have just experienced the same situation which is indeed rather frustrating considering the time it takes to complete the model. The Mac had been running quite happily for just over a month now !!!
I had restarted it a few times and it always managed to resume its activity without any particular problem.

Tonight however, after installing the Mac OSX updates and restarting the machine I had the following when starting the program :

[HomeG4:~/documents/dev/climateprediction] davidcar% ./boinc
2005-02-10 19:50:07 [---] Starting BOINC client version 4.13 for powerpc-apple-darwin
2005-02-10 19:50:07 [climateprediction.net] Project prefs: no separate prefs for home; using your defaults
2005-02-10 19:50:07 [climateprediction.net] Host ID is 81718
2005-02-10 19:50:07 [---] General prefs: from climateprediction.net (last modified 2005-01-05 22:57:39)
2005-02-10 19:50:07 [---] General prefs: no separate prefs for home; using your defaults
2005-02-10 19:50:07 [climateprediction.net] Resuming computation for result 2s21_100150982_2 using hadsm3 version 4.03
Starting model in /Users/dc/Documents/Dev/ClimatePrediction/projects/climateprediction.net...
Created shared memory region key = 24545
Env Used=DYLD_LIBRARY_PATH=/Users/dc/Documents/Dev/ClimatePrediction/projects/climateprediction.net:../
Starting model ID 2s21_100150982 Phase 2
Stack size=48.00 MB
Waiting for model startup, this may take a minute...
2s21_100150982 - PH 2 TS 091873 - 00/00/0000 00:00 - H:M:S=0931:23:14 AVG= 9.55 DLT= 0.00
Model crashed...retrying...restart level 0
Preparing for restart...
Rewinding a model-day...
Starting model ID 2s21_100150982 Phase 2
Stack size=48.00 MB
Waiting for model startup, this may take a minute...
2s21_100150982 - PH 2 TS 091873 - 00/00/0000 00:00 - H:M:S=0931:23:14 AVG= 9.55 DLT= 0.00
Model crashed...retrying...restart level 1
Preparing for restart...
Rewinding a model-month...
Copying restart files for model retry...
Starting model ID 2s21_100150982 Phase 2
Waiting for model startup, this may take a minute...
Stack size=48.00 MB
2s21_100150982 - PH 2 TS 091873 - 00/00/0000 00:00 - H:M:S=0931:23:14 AVG= 9.55 DLT= 0.00
Model crashed...retrying...restart level 2
Preparing for restart...
Rewinding a model-year...
Copying restart files for model retry...
Starting model ID 2s21_100150982 Phase 2
Waiting for model startup, this may take a minute...
Stack size=48.00 MB
2s21_100150982 - PH 2 TS 091873 - 00/00/0000 00:00 - H:M:S=0931:23:14 AVG= 9.55 DLT= 0.00
Model crashed...retrying...restart level 3
Preparing for restart...
Error: Restart files for not found
Giving up, this result exceeded crash count for available restart files.
adding: 2s21aa.pa.gmts.x1.nc (deflated 35%)
adding: 2s21aa.pa.rmts.x1.nc (deflated 36%)
adding: 2s21aa.pc.gmts.x1.nc (deflated 53%)
adding: 2s21aa.pc.rmts.x1.nc (deflated 40%)
adding: 2s21aa.pd.gmts.x1.nc (deflated 53%)
........

and then it started from scratch on a new model !!
Am only posting this in case this helps find a solution to this issue. It seems a great waste to loose the benefit of over a month of computation just because of a "crash".

Looks like I have lost the files indeed as the size of the project folder is reduced to 400MB (instead of about 600 before the event) so I guess there is no way back.

I can hardly believe this has happened, should there not be any way of preventing this ? Surely the program should never replace an existing set of data without at least giving the opportunity to the operator to make that decision.

Any comment or potential solution will be highly appreciated.

Thank you.

David.
4) Message boards : Cafe CPDN : User of the Week! (Message 8281)
Posted 31 Jan 2005 by Profile old_user34261
Post:
Oui, Felicitations Djezz !

Am a new member of the Team (joined in December) and have been very quiet so far (probably will remain that way for everyone's benefit !!) but I could not help notice the vast amount of information available on the BoincFr site ! Truly remarkable and extremely helpful.

Incidentely, I happen to be looking for information about large deployment and Arnaud kindly suggested that I contacted Vince on this subject, so I will do so soon.

As for the traductions, I am really impressed as I could not dream of doing half of what you have done and yet I have been in the UK for 10 years !!! Shame on me, I will however attempt to help if I manage to find some spare time (will be in touch soon about this).

Vous faites du super boulot !!!

A Bientot.

David.
5) Message boards : Cafe CPDN : Running CPDN on a corporate network (Message 8261)
Posted 31 Jan 2005 by Profile old_user34261
Post:
Thank you guys for your helpful comments. This is highly appreciated !

Looks like I should not worry too much about the trickling aspect after all. However we would have to be careful with the final upload as that kind of file size (7M) multiplied by the number of devices involved would definitely affect our Network performance. There must be a way around this though, I shall work on this.

As you suggested Arnaud, I will get in touch with Vince very soon to find out how he got on with his implementation.

Once again, thanks a lot.

David.
6) Message boards : Cafe CPDN : Running CPDN on a corporate network (Message 8160)
Posted 30 Jan 2005 by Profile old_user34261
Post:
Hello everyone,

I am wondering whether there are people/businesses out there running the project on a "large" scale.

As a Mac enthusiast, I have been running the project from my equipment at home for a very short period of time and intend to help as much as I can with my little resources.

However, as an IT Manager, I am responsible for a very small network of about 120 PCs, I am naturally wondering whether I should consider using some of our resources for the purpose of helping this project. Since we use "Thin Client Technology" and the Clients are not so thin, we could probably use the spare processing power of our PCs to do something useful.

Before considering this seriously (I am a risk-averse type of guy when it comes to our Business Network), I would like to hear from people/IT professionals who may have deployed the Boinc client in a Corporate environment.

My main concern at the moment is the number of times the PCs would need to access the internet to trickle, I would not want to affect our Network traffic at all and am wondering whether there would be a way of preventing the PCs from trickling until the end of the process or only at a time when it is convenient (during the night for example).

Any experience in the corporate environment and/or suggestions about the trickling bit above will be highly appreciated.

Thank you in advance.
7) Questions and Answers : Macintosh : Not Trickling : Is this matter for concern ? (Message 7160)
Posted 4 Jan 2005 by Profile old_user34261
Post:
Yes C !

You're right, I had not spotted this as I was not too worried about the credits but this suggests that everything is happening as expected indeed.

Thanks.
8) Questions and Answers : Macintosh : Not Trickling : Is this matter for concern ? (Message 7155)
Posted 4 Jan 2005 by Profile old_user34261
Post:
Thank you Les !
This is very helpful, as it happens, my machine sent the last trickle about half an hour ago as I was expecting, this is good news. That's my confidence restored.
I am going to spend a bit of time investigating this a bit further though. Could simply be that at the time of the third trickle, the internet connection was down.

It looks however like this does not seem to offend the process too much which was my main concern, the timesteps keep increasing at the same pace which hopefully means the contribution is there.

Thank you again.

David

(replied to the wrong post !!! Cannot remove and recreate ! Sorry)
9) Questions and Answers : Macintosh : Not Trickling : Is this matter for concern ? (Message 7145)
Posted 3 Jan 2005 by Profile old_user34261
Post:
Hello everyone, this might have been asked but I have not found a reassuring answer to this basic question yet.

My model seems to be working ok on the Mac, the number of timesteps keeps increasing according to the visual tool.

I am not doing this for the credits but I need to make sure that the cpu is not working for nothing and that there is an actual contribution to the project.

So far the Mac trickled twice, firstly at timestep 10802 and secondly at timestep 21604 which I believe was expected. From what I have read in various parts of the forums, we should expect a trickle every 10802 steps. Since the cpu is currently at step 39397, it looks like we might have missed something.

Can someone tell me whether this is matter for concern or not ? Can I just keep the process running without worrying about the trickles ?

Your help would be appreciated as i would not want to waste the cpu's time.

I would be grateful if someone could point me to some information about the relevance of those trickles.

Thank you very much in advance.

Happy Boincing !





©2024 climateprediction.net