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World Community Grid Forums
Category: Active Research
Forum: Africa Rainfall Project
Thread: The Extremes thread |
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Thread Status: Active Total posts in this thread: 113
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Mike.Gibson
Ace Cruncher England Joined: Aug 23, 2007 Post Count: 12435 Status: Offline Project Badges: 
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Looking at the figures from generations.txt there only seem to be about 100 extremes actually moving. Generations 126 - 128 would seem to hold many stuck units
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alanb1951
Veteran Cruncher Joined: Jan 20, 2006 Post Count: 981 Status: Offline Project Badges: 
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Looking at the figures from generations.txt there only seem to be about 100 extremes actually moving. Generations 126 - 128 would seem to hold many stuck units I've been wondering about the distribution of stuck units, and the reasons...I suspect some have been stalled for so long that their last category was Normal at the time they failed :-) And there's a fair chance that many of them failed because of non-computational issues such as upload/download errors during the various system crises we have had. I would assume there is some process for ensuring that tasks that fail for those reasons get resubmitted in a timely fashion without too much operator intervention (but we know what they say about ass-u-me...) Cheers - Al. |
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Mike.Gibson
Ace Cruncher England Joined: Aug 23, 2007 Post Count: 12435 Status: Offline Project Badges:
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Al
----------------------------------------That could be part of the problem. However state.txt does not add up to 35609! There are 53 extra "normals", 419 fewer "accelerated" and 82 fewer "extremes". Also, extremes of weather tend to be seasonal and different parts of Africa would have them at different times of the year. And each generation corresponds to a specific date. I have assumed that the problem lies with extremes of weather that the programming has been unable to cope with possibly caused by difficult terrain. Reducing the TimeStep has helped to progress some units probably by narrowing the differences in weather between steps. But without any confirmation, we can only guess!  Mike [Edit 1 times, last edit by Mike.Gibson at Feb 12, 2025 11:44:52 PM] |
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geophi
Advanced Cruncher U.S. Joined: Sep 3, 2007 Post Count: 107 Status: Offline Project Badges: 
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Result name OS type Status Sent time Due / Return time CPUtime/Elapsed Looks like 5 days ago it was generation 115. [Edit 2 times, last edit by geophi at Feb 14, 2025 3:27:41 PM] |
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adriverhoef
Master Cruncher The Netherlands Joined: Apr 3, 2009 Post Count: 2171 Status: Offline Project Badges: 
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Here's another sighting of a validated workunit in the Extreme category with 5 or less workunits in its current generation (or in both its adjacent generations).
----------------------------------------(Output generated by ”wcgstats -frrr= 666028653”) workunit 666028653 ARP1_0032724_123_0 Linux Debian Valid 2025-02-15T10:47:10 2025-02-15T20:20:53 8.93/8.94 533.2/538.2 This grid cell was previously sighted in post 701458 by gb009761, advancing 8 generations in ±9 days, depending on your POV. Adri [Edit 3 times, last edit by adriverhoef at Feb 16, 2025 11:06:04 PM] |
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Mike.Gibson
Ace Cruncher England Joined: Aug 23, 2007 Post Count: 12435 Status: Offline Project Badges:
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The generations with suspect stuck extremes have advanced to 122.
----------------------------------------I also suspect that most of the other extremes are stuck, having stuck when their generation still classified as accelerated. There are 849 listed in generations up to 136 (Extremes & Accelerated) in generations.txt, but only 350 in state.txt. This reduces the pool of available work units. Mike [Edit 1 times, last edit by Mike.Gibson at Feb 18, 2025 1:28:11 AM] |
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Mike.Gibson
Ace Cruncher England Joined: Aug 23, 2007 Post Count: 12435 Status: Offline Project Badges:
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There are 336 units listed as extreme but only 12 advanced in the last 24 hours and 2 of them escaped to accelerated. Most of the rest are presumed stuck.
Mike |
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Mike.Gibson
Ace Cruncher England Joined: Aug 23, 2007 Post Count: 12435 Status: Offline Project Badges:
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After today's stats, there appear to be 3 extremes active and 329 stuck.
Mike |
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Mike.Gibson
Ace Cruncher England Joined: Aug 23, 2007 Post Count: 12435 Status: Offline Project Badges:
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Looking back a couple of weeks, it would seem as though there may be the following units movable in extreme generation:
126 - 4 127 - 5 128 - 0 129 - 1 130 - 1 131 - 0 That would be a total of 11.. I previously thought it was only 3 but the other 8 would seem to have been moving slowly. There are 330 units in the extreme generations so 319 must be stuck. Mike |
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spRocket
Senior Cruncher Joined: Mar 25, 2020 Post Count: 277 Status: Offline Project Badges:
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Picked up a 127...
----------------------------------------ARP1_0033792_127_0 Linux openSUSE Tumbleweed In Progress 2025-02-23 12:48:24 2025-02-25 00:48:24 Edit: as of this morning, the unit came up valid. [Edit 1 times, last edit by spRocket at Feb 24, 2025 1:33:56 PM] |
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