Hey all, i have been running several boinc projects for a while now, and i just added cpdn to the list
however it seems to be a little different than other projects, in that most of my projects take usually less than 20 hours per task, and my first cpdn is going to be 521 hours, which is fine
but im gathering that credit is given out along the way? instead of all at the end?
and on the graphics, what does S/TS mean?

thanks

Welcome to the Boards and to the Project.

Actually, it isn\'t \"a little different\" from other Projects. It\'s a LOT different. It isn\'t a secret, though. Pertinent information has been written/collected by some dedicated participants -- all to keep people from heart attacks or getting in over their heads.

Your questions are answered in the link in my signature.

Post back if you have other questions not answered there.


By the way, you\'re fortunate that you got a short Model! You could have received one that would take in the neighborhood of three thousand hours on your P-D 3.0.

[Edited for typo.]

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"We have met the enemy and he is us." -- Pogo
Greetings from coastal Washington state, the scenic US Pacific Northwest.

ok, great,
I was thinking of dedicating one of my machines to only cpdn.
thanks for the info.

Hi M-man, welcome to CPDN.

For people with more than one computer, dedicating one to CPDN only is an excellent idea. Another excellent idea is to regularly back up the contents of the BOINC folder on the CPDN computer. So if a model crashes, which can easily happen because they\'re so long, you can restore the backup and continue the same model. In the project READMEs linked in my signature there\'s a whole collection of backup methods. Les\'s manual method is quick and easy.

In the README about crashes and problems, link #6 leads to a post by Mike where he explains the precautions CPDN crunchers need to take to run models successfully.

You can select the sort of model you want next in your CPDN project preferences in your account.

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Cpdn news

Hello all,

Sorry if I\'m missing something, but I briefly looked in the \"Important stuff here\" sections posted by \"AstroWX\" and I didn\'t (easily) find an answer to the main question of \"What is s/TS\"?

I\'m really curious, and this thread is the first (and only relevant, as far as I can tell) thing that came up on google.

Would someone be so kind as to state briefly what this metric represents?

Thanks!

--Marty

s/TS = seconds per Time Step.

The climate models increment at fixed intervals, (mostly half an hour) for each set of calculations in blocks around the globe, and in layers up into the atmosphere. (See Background Science on this page.)

The time in seconds that it takes a computer to calculate each of these steps is the s/TS.
It can vary a lot, depending on the speed of the computer, the amount of time that the computer is on, the number of other projects sharing time with this project, etc.
The number can be seen on the graphics display on your computer, and is also displayed on the web page for that model, which is part of your account page on the project.
Note that it\'s an expected average time over the life of the model, and usually various as time goes by, as a more accurate average is calculated.
Also note that there are different types of model, and some have had 3 different s/TS, for the Ocean phase, the Atmosphere phase, and the Regional model phase.

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