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Posts by Roland

Posts by Roland

1) Questions and Answers : Macintosh : Full Resolution Ocean 6.07 Model failing with computation error (Message 50750)
Posted 7 Nov 2014 by Roland
Post:
What helpful people there are here!
I had a look through the last 30 work units I have been assigned (see computer 1342365), and the vast majority of them had been attempted four or five times previously by other computers with diverse operating systems and always failed with "error while computing". Only One of the 30 has subsequently run to completion on another computer. I've tried switching to the two models suggested by Iain Inglis and I'll see how that goes. I can't quite get my head around a simulation design that is known to fail on most computers most of the time - surely there is a better way?!
2) Questions and Answers : Macintosh : Full Resolution Ocean 6.07 Model failing with computation error (Message 50744)
Posted 6 Nov 2014 by Roland
Post:
Thanks Les,

I couldn't live with the graceless way that the full resolution model failed - effectively taking a processor core with it each time, and leaving gigabytes of orphan data behind. I disabled all except the HadCM3 short model for future downloads. I've had more than 20 of these download and run-through to 100% (or nearly - I haven't actually managed to catch one in the act yet) and upload, however looking at the 'my tasks' list on the web site, every single one of them is showing status "Error while computing". I'm getting credit for the upload / trickles but I'm not sure if I'm doing much good if all the models are failing. At least they fail gracefully with no collateral damage but it is still disturbing...
Any ideas? I'm not sure the cause would be the design of the models with 100% failure rate?
3) Questions and Answers : Macintosh : Full Resolution Ocean 6.07 Model failing with computation error (Message 50606)
Posted 24 Oct 2014 by Roland
Post:
I'm a newbie to Climateprediction.net. Boinc has downloaded about 10 models for the UK Met Office Coupled Model Full Resolution Ocean 6.07 but every one of them has failed with "computation Error" status after a few hours and % (usually 2-3%). Even without looking I can tell one has failed because the fan on my late 2009 iMac Core i7 spins up. This seems to be down to the failed model sharing one core 50/50 with kernel_task and not responding to anything other than a quit boinc and restart. On the other hand I have 3 HadCM3 short 7.24 models running which look set to complete (>60% so far). I have keep in memory selected.

Any ideas? I've disabled that model for future downloads which is a sort of workaround, but not a cure.




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