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Problem running ONE SPECIFIC project
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Send message Joined: 22 Oct 10 Posts: 1 Credit: 460,336 RAC: 0 |
I have many projects running on 2 computers that behave as expected ie for every hour elapsed the time remaining drops by roughly an hour) but one of 4 climate prediction work units is behaving very strangely. Is there an issue with this project? Should I abort it. It worked well until it got to roughly 55% completed with about 50 hours to go Since then for every hour run time the time remaining increases indicating that the work unit is running far slower. Currently on 64 % complete.(but still increasing) Elapsed time now 272 hours 27 minutes. Estimated remaining time now 62 hours 30 minutes. All other Climate prediction and work units from 4 other groups, as this did till half way through cheers |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
Could you provide a link to the model page of the task in question please. |
Send message Joined: 16 Jan 10 Posts: 1081 Credit: 7,010,205 RAC: 4,381 |
You've got one Mexico (25 km resolution): if you have access to that PC could you report back the "gflops" for that model? To do that just look at the model's properties in BOINC Manager. The reason for asking is to compare gflops estimates supplied by the project with actual run-times for all model types - and I haven't had a MEX25 so don't know how it's sized. Thanks. |
Send message Joined: 22 Feb 06 Posts: 485 Credit: 29,630,655 RAC: 3,489 |
If it's any help one of the mex25's that I have run took 821,000 (approx) secs cpu time on a 3.5GHz i5. Approx 5.4 sec/time step. |
Send message Joined: 17 Aug 04 Posts: 289 Credit: 44,103,664 RAC: 0 |
_ also If it's any help ... my one and only mex25 still running: my mex25 should finished in 2 days 13 hours, on an Intel Xeon CPU E5-2687W v3 @ 3.10GHz wah2_mex25_c21x_201112_13_410_010611137_1 Screen shot of properties: wah2_mex25_c21x_201112_13_410_010611137_1 I hope this will help in some way. _ |
Send message Joined: 16 Jan 10 Posts: 1081 Credit: 7,010,205 RAC: 4,381 |
Exactly what I needed, Byron. Thanks. I don't want to trigger a discussion about differential credit rates - aargh! - but systematically describing the run-times of different tasks is of general interest. The HADAM3P AFR tasks were wrongly sized, if I remember rightly, and caused a number of comments such as nzmeccanoman's (though I failed to record the gflops for AFR50 despite having run loads). The only WAH2 task I don't have a gflops value for, but which isn't very common, is the PNW/25-km/16-month. |
Send message Joined: 18 Jul 13 Posts: 438 Credit: 24,528,377 RAC: 1,923 |
I don't want to trigger a discussion about differential credit rates - aargh! - but systematically describing the run-times of different tasks is of general interest. Hi Iain, here are the properties of one wah2_pnw25_a3ru_20069_16_424_010649978_1, running on WIN 7, i5-2520M @ 2.5 GHz, Average (sec/TS) = 2.20 Edit: Seems I'm not sure how to display the image here is the link I used to cross-reference Average (sec/TS), CPU run times, CPU models and CPDN models in order to determine best CPU value for money. I was using excel, but I drop it at certain point as too time consuming. |
Send message Joined: 16 Jan 10 Posts: 1081 Credit: 7,010,205 RAC: 4,381 |
Thanks, Bernard. That completes the set of WAH2 models - at least the ones I know about (i.e. DUB25/13, EU25/12-13, MEX25/13, MEX50/12-13, PNW25/16-24, SAM50/13 and SAS50/13). |
Send message Joined: 1 Sep 04 Posts: 161 Credit: 81,421,805 RAC: 1,225 |
nzmeccanoman - It has been my experience that if the percentage complete is increasing you are probably OK. If the percentage complete is "stalled" for a long (whatever that is) period of time, consider shutting down the BOINC Manager (stop running tasks) and restarting. Also, the time to completion does not always match the elapsed time and percentage complete. For example Elasped=400, %complete=50, Time Remaining=100. |
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