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New model versions released

New model versions released

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Les Bayliss
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Message 30632 - Posted: 22 Sep 2007, 4:04:56 UTC


Model types are selected by an option in \"climateprediction.net preferences\" (in your Account on the server), called: \"Application Preferences\".

\"500 hours\" depends on the computer speed, how long the computer is on, how much of this time is free, (i.e. YOU aren\'t using it), and how many other projects are sharing this time.
They are, more accurately, 45 year, \'slab ocean\' models, with 3 phases of 15 years each.


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Billy Ewell 1931

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Message 30651 - Posted: 22 Sep 2007, 21:32:39 UTC - in response to Message 30632.  
Last modified: 22 Sep 2007, 21:37:25 UTC


Model types are selected by an option in \"climateprediction.net preferences\" (in your Account on the server), called: \"Application Preferences\".

\"500 hours\" depends on the computer speed, how long the computer is on, how much of this time is free, (i.e. YOU aren\'t using it), and how many other projects are sharing this time.
They are, more accurately, 45 year, \'slab ocean\' models, with 3 phases of 15 years each.


[q] Thank you Les Bayliss for the prompt reply; I should have done more research before deciding to pose the time-to-completion question based on CPU time. By the way, \"CPU time\" is the time reference shown on the Boinc Manager (local host) to indicate the actual cpu time used/recorded by each processor from the beginning to the end of each work unit. For the larger hadcm model, I required about 2950 hours of cpu time per work unit at 2.66GHz; on the hadsm model, which has been running some 5 hours, it appears based on current calculation that I will complete this first unit in about 445 hours. Thank you again for your assistance for I have found exactly what I was looking for in supporting CPDN and five other projects with my dual-core computer.

Bill: Graduate, Royal Air Force Staff College--Andover, Hants, Class of 1967. {q}
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Message 30664 - Posted: 23 Sep 2007, 18:15:27 UTC
Last modified: 23 Sep 2007, 18:20:58 UTC

Hi Billy

I\'m in Hampshire, though in Portsmouth which is of course not very near Andover.

If you look at the News and Announcements thread second top of this Number Crunching section and find my post from 8 Aug, there are links in it to two threads on the independent cpdn forum where there are lots more details about the currently available models.

If and when new models become available in the future, I expect that\'s where we\'ll post technical and scientific details about them.

With the amount of RAM your computer has, you could sometime if you wish run a SAP model for variety. They\'re relatively short by cpdn standards. The SAP models probably won\'t be available indefinitely.
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Message boards : Number crunching : New model versions released

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