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Message boards :
climateprediction.net Science :
Climate change in the News
(Message 70778)
Posted 24 days ago by  Dave Jackson
Post: Tenth consecutive monthly heat record alarms and confounds climate scientists If the anomaly does not stabilise by August, ‘the world will be in uncharted territory’, says climate expert. |
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22)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70776)
Posted 24 days ago by Dave Jackson
Post: Both new batches appear to be the older "Weather At Home 2 (wah2) v8.24" application, so it looks like a bit of benchmarking is going on.Small batch of 60 tasks. Checking a couple specific ancillary files for natural forcing I believe. |
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23)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70774)
Posted 24 days ago by Dave Jackson
Post: Small batch 1011 appears to have dropped. I have one running and 1st trickle has uploaded.Sounds like progress as all your machines are Intel. |
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24)
Message boards :
Number crunching :
Completing a WU? Impossible. How's the situation today?
(Message 70761)
Posted 26 days ago by Dave Jackson
Post: There is an issue with the current batch (1008/9) that means they are failing but only on Intel machines. So far they seem to behave on AMD ones. Glenn is doing some serious debugging work to track down the source of the problem. With luck the two remaining batches and a fixed 1008 with a new number might go out next week. Follow the thread for batch 1008 for news on this. |
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25)
Message boards :
Cafe CPDN :
Off-Grid Solar/Renewable Energy Discussion
(Message 70754)
Posted 27 days ago by Dave Jackson
Post: I mean seriously, warnings on chainsaws not to stop them with your genitals?!Where do you buy your chainsaws from? Neither of mine came with any such warnings! And health and safety measures are only common sense for someone who fully understands what is involved. A chainsaw for example can under certain circumstances kick up which is why I always wear a safety helmet while using mine and modern ones all have a safety chain brake that will stop the chain by hitting against the top hand in such situations. Someone with no knowledge of chainsaws could buy one of the old fashioned ones and have no idea how dangerous it is. Health and safety warnings and measures are designed to protect those who don't understand what is involved. |
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26)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70750)
Posted 27 days ago by Dave Jackson
Post: Starting to get some tasks from batch 1009 - I assume these are the test run.I can confirm these are from the test batch of 100 tasks. Edit: And I would guess they have all gone now so I won't get any unless there are failures. |
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27)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70748)
Posted 27 days ago by Dave Jackson
Post: I have deleted the last resend. It was a _2 so won't be sent again now. I have left the five started tasks from 1008 going and there is a resend from 1007 at 88%. I have also set the machine to no new tasks till I get some hints about the imminentness of the 100 tasks being released. Edit:I think if BOINC were to cater for this type of test it would almost certainly mess something else up! Edit2: Given the time I would not be surprised if the test doesn't arrive till Monday though I have been caught out before by batches being released over the weekend. |
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28)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70746)
Posted 27 days ago by Dave Jackson
Post: I believe the Intel runs are behaving correctly and failing. It's the AMD runs not behaving.The only reason I haven't asked why is I almost certainly will not understand the answer! ;) |
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29)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70744)
Posted 28 days ago by Dave Jackson
Post: Thanks Glen. I will abort the two not started yet as credit isn't a issue for me.I was clearly a bit premature with that as I have picked up one more resend from 1008. |
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30)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70742)
Posted 28 days ago by Dave Jackson
Post: Thanks Glen. I will abort the two not started yet as credit isn't a issue for me. |
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31)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70738)
Posted 28 days ago by Dave Jackson
Post: I believe the Intel runs are behaving correctly and failing. It's the AMD runs not behaving.Should I just abort the two that are yet to start? I have five others that I can save files from that have all produced either 4 or 5 zips. Or would looking at what happens at the point where they fail on Intel machines be more useful? |
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32)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70734)
Posted 28 days ago by Dave Jackson
Post: I would suggest that those with Intel processors set CPDN to no new tasks till this is sorted. Edit: It is possible the batch might be closed which would stop resends and let those with work on AMD machines complete it. Edit: I think it is being paused which will stop resends. I have looked at over 20 hard fails, every single one is at the same point on an Intel machine. I have seven from the batch on my machine, Four have produced 5zips and trickle up messages, one four and two waiting to start. It is most odd. |
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33)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70727)
Posted 29 days ago by Dave Jackson
Post: Yes, phenom2, all Ryzen and thread ripper CPUs support SSE4.2 |
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34)
Message boards :
Number crunching :
New Work Announcements 2024
(Message 70717)
Posted 29 days ago by Dave Jackson
Post: Please! Keep this thread for announcements about new work. Any discussion should go in new thread(s.) |
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35)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70714)
Posted 29 days ago by Dave Jackson
Post: Dave, you might recall your dev test did fail and that was on AMD.And that one completed for Richard on an Intel machine |
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36)
Message boards :
Number crunching :
Batch 1008, and test batches 1009 to 1014 for Windows - issues
(Message 70710)
Posted 3 Apr 2024 by Dave Jackson
Post: The only pattern I've noticed (if it is a pattern), is that my failures were on a Win10 VM running on a intel chip, whereas the same VM running on a AMD has got 3 tasks past 1/Jan. Any idea of the percentage of Intel vs AMD chips. I have been trawling and every single failure I have looked at has been Intel but, the overwhelming majority of tasks have not returned a zip yet so there is no evidence they are running correctly. Mine which have returned zips are all Wind10 in a VM as opposed to WINE which might mask failures. (All on AMD Ryzen 7 3700X ) I guess we might have more data by tomorrow morning when most computers running 24/7 should have either failed tasks or produced zips. |
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37)
Message boards :
Number crunching :
Should full credit be given for time on non successful tasks?
(Message 70687)
Posted 1 Apr 2024 by Dave Jackson
Post: I looked around a bit an several projects seem to have had people with this issue. If for any reason the benchmark for your machine is optimistic it can cause this error. Manually rerunning benchmarks should solve it for future tasks but not those already downloaded. |
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38)
Message boards :
Number crunching :
Should full credit be given for time on non successful tasks?
(Message 70680)
Posted 27 Mar 2024 by Dave Jackson
Post: It is the way over half the credit is quite often given to two or more in the case of some Linux tasks before someone finally completes the work that gets me. Really just floating it to get an idea of whether it would deter those who crash most tasks even if they gain a substantial amount of credit first. I certainly don't see it happening any time soon given the work Andy and Richard have put into sorting out the current system. |
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39)
Message boards :
Number crunching :
Should full credit be given for time on non successful tasks?
(Message 70675)
Posted 27 Mar 2024 by Dave Jackson
Post: I think that giving credit for non completed tasks based on trickle up messages is unique to CPDN. It originated when tasks taking four months or more was not unusual. Now the longest tasks still complete in under a month on an reasonably fast machine, most within two weeks running 24/7. This was prompted by seeing a resend where one of the failures was on a machine that only completed about one in twenty tasks and sent a trickle up message every few days. I know the credit system has only just been rejigged so the credit script runs daily but I would like to pose the question as to whether we should move to a system of only granting credit for completed tasks? Do those crashing everything or almost everything ever look at their credit? I don't know. If they do, not getting any might prompt them to visit the fora to find out why everything is crashing? Just a thought. |
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40)
Questions and Answers :
Wish list :
Website revamp.
(Message 70674)
Posted 27 Mar 2024 by Dave Jackson
Post: The website should probably have something discouraging people who regularly turn off their machines from crunching this project as well. - I have just picked up a resend this morning, one machine, it didn't make the transition from global to regional model, I had that happen to one of mine in testing that is running fine on another machine. It is what it is. The other failure however is from a machine with lots of suspend requests and is completing less than 5% of the tasks it, often taking several days between trickle up messages/zip uploads. It would be helpful if potential crunchers for the project were aware of the nature of the project and that repeated machine reboots are likely with some model types to result in task failures. |
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