Message boards : Number crunching : [topic]HadCM3L
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Send message Joined: 13 Aug 05 Posts: 54 Credit: 117,227 RAC: 0 |
hello, BOINC - Tâches => 0H - 0% => in 1446 hours (2 months) => 6H - 0.37% => in 1443 hours http://climateapps2.oucs.ox.ac.uk/cpdnboinc/result.php?resultid=12018154 2.90 sec/TS TimeStep 7575 / 2073960 :) |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
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Send message Joined: 16 Aug 04 Posts: 156 Credit: 9,035,872 RAC: 2,928 |
Got 4 of them and all are running well after about 20h :) No graphic showing though after first trickle 1.80-1.89 s/TS on Linux, much faster than the last batch on the Beta site |
Send message Joined: 31 Dec 07 Posts: 1152 Credit: 22,363,583 RAC: 5,022 |
I just downloaded 2 of the new 80 year CM models to my 2.2 GHz machine with 4 GB of RAM and was astonished to see the “to completion†time at 5069 hours. I am hoping that this is a major over estimation. What gives? Why so high an estimate? I remember running the old 160 year CM’s on a 1.5 GHz machine that had only 1 GB of RAM and it took only about 3500 hours to complete them. Good thing that I didn’t download them to my slower machine as I would like to finish them before the sun burns out. ;-) |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
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Send message Joined: 13 Aug 05 Posts: 54 Credit: 117,227 RAC: 0 |
Trickle 1 = 326.59 Credit 326.59 x 80 = 26127.2 credit :) |
Send message Joined: 31 Dec 07 Posts: 1152 Credit: 22,363,583 RAC: 5,022 |
Trickle 1 = 326.59 Credit 326.59 x 80 = 26127.2 credit 26.127 credits should be about tight of this type of model. If I remember correctly, the old 160 year CM’s produced about 44,000 credits for a finished model. [/quote] |
Send message Joined: 16 Aug 04 Posts: 156 Credit: 9,035,872 RAC: 2,928 |
My four models haves past the first decade and uploaded the 15Mb 1.zip I thought they would show some graph like in the former hadcm variants I ran, no? |
Send message Joined: 7 Aug 04 Posts: 2187 Credit: 64,822,615 RAC: 5,275 |
1.80-1.89 s/TS on Linux, much faster than the last batch on the Beta site Thanks for that note cwhyl. The applications build date suggests it was compiled back in 2008, and I would swear that that version was slow on Linux. Perhaps a rebuild that isn't advertised on the applications page? |
Send message Joined: 2 Mar 06 Posts: 253 Credit: 363,646 RAC: 0 |
I didn't rebuild the application before generating the most recent workunits, as it's for the same sort of experiment that was previously done with that model and we're a bit short-staffed at the moment. |
Send message Joined: 16 Aug 04 Posts: 156 Credit: 9,035,872 RAC: 2,928 |
1.80-1.89 s/TS on Linux, much faster than the last batch on the Beta site Ah, I compared to the latest highly optimised 6.05/Beta batch that was 2.7!! times slower than Jims' Q9550/2.8 GHz Win7 My boxen is Q6600 at 3.2-3.4 GHz I don't remember the speed of the latest hadcm I ran here some years ago and the record seem to have been wiped out :-( Here I've seen 1.11 and 1.50 s/Ts on newer windows i-series machines |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
... the record seem to have been wiped out ... Not 'wiped out', archived. This is mentioned on people's Account pages, not far from the top. |
Send message Joined: 16 Aug 04 Posts: 156 Credit: 9,035,872 RAC: 2,928 |
... the record seem to have been wiped out ... oh,I understand that Les.. |
Send message Joined: 29 Dec 09 Posts: 34 Credit: 18,395,130 RAC: 0 |
"26.127 credits should be about tight of this type of model. If I remember correctly, the old 160 year CM’s produced about 44,000 credits for a finished model." 44,000 perhaps should be the amount, as I am noticing so far a drop of up to 20-40% from FAMOUS. The models, every 24 timestep hours, revert back and redo the same timestep albeit at a much faster speed. They will likely go over 1000 hours to complete on my M/C. |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
The models, every 24 timestep hours, revert back and redo the same timestep albeit at a much faster speed. Not quite. For the Coupled Ocean models, there are two different phases in the calcs: the "slow" 24 hours is the Atmospheric phase. The "fast" 24 hours is the Ocean phase. It's faster because the conditions deep in the ocean change very slowly. The FAMOUS models use a different strategy. This can be read about here on the relevant page of the Experiments section near the front of the project's web site. Backups: Here |
Send message Joined: 16 Aug 04 Posts: 156 Credit: 9,035,872 RAC: 2,928 |
Why the heck is there no graphic showing on these models? |
Send message Joined: 13 Aug 05 Posts: 54 Credit: 117,227 RAC: 0 |
w1aj-2000-80_1.zip 15.70 MB 15.70 MB x 8 = 125.6 MB :) |
Send message Joined: 29 Dec 09 Posts: 34 Credit: 18,395,130 RAC: 0 |
Thanks Les. It is an interesting behavior for the model though the Ocean Phase is as fast as the dip in my RAC. Oh well. :) |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
Why the heck is there no graphic showing on these models? They'll be along later. There hasn't been time to write the graphs program yet. Backups: Here |
Send message Joined: 30 Aug 04 Posts: 142 Credit: 9,936,132 RAC: 0 |
I'm going to second Darmok about the dip in RAC. Is any adjustment possible? It's an old story, but if a 1000+ hours model is useful, is there a way to encourage crunchers? ;-) Jim, did you mean "right"? Although "tight" may be to the point :-) Still, they're going along nicely. Forum search Site search |
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