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World Community Grid Forums
Category: Completed Research
Forum: The Clean Energy Project - Phase 2 Forum
Thread: Long time between checkpoints instead of what is defined in preferences |
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Thread Status: Active Total posts in this thread: 5
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Both my linux and windows clients of WCG make checkpoints of CEP tasks almost every 1h instead of 1m that is defined on the properties. Is this normal behavior? This causes huge waste of CPU time so I stopped crunching data for this project
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gb009761
Master Cruncher Scotland Joined: Apr 6, 2005 Post Count: 2982 Status: Offline Project Badges: 
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Yes, unfortunately, for this particular project, checkpoints are only possible after every 'step' of the job - and thus, these CAN be very long - upwards of 2-3 hours on certain steps.
----------------------------------------Hence, one of the reason's why it's an 'opt-in' project.  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Both my linux and windows clients of WCG make checkpoints of CEP tasks almost every 1h instead of 1m that is defined on the properties. Is this normal behavior? This causes huge waste of CPU time so I stopped crunching data for this project Hi nmag, As per gb009761, those checkpoints are only possible at the end of every "job" of which there are 16 in a CEP2 task. The "Write To Disk" setting is a limitation rather than an instruction i.e. the science checks at each checkpoint if it's allowed to write per client setting, if it is ready to do so. The intervals here are so large because the models are huge and of course you don't want it to save 1GB to disk every minute. Then you'll basically not able to use your computer so slow it will appear. For lots more info on checkpoints and limiting 'waste', visit this FAQ: --//-- |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
OK, thank you both.
Since I have 2 extra hds to store data and my OSs are on ssd, can I move the dir where BOINC stores data so I prevent flash wear? |
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CandymanWCG
Senior Cruncher Romania Joined: Dec 20, 2010 Post Count: 421 Status: Offline Project Badges: 
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Hi nmag,
----------------------------------------sure you can. Just follow this thread and you'll get there: http://www.worldcommunitygrid.org/forums/wcg/...ead,30666_offset,0#309242 After all, it worked for me!  Cheers! Knowledge is limited. Imagination encircles the world! - Albert Einstein   |
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