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World Community Grid Forums
Category: Completed Research
Forum: Outsmart Ebola Together
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Thread Status: Active Total posts in this thread: 438
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I need a bath
Senior Cruncher USA Joined: Apr 12, 2007 Post Count: 347 Status: Offline Project Badges: 
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Oh that's good news. We will have something to do pending WCG tech work outcome. That should quell some of the whinging.
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KWSN-A Shrubbery
Senior Cruncher Joined: Jan 8, 2006 Post Count: 476 Status: Offline Project Badges: 
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An opt-in with the flex units as is with a significant disclaimer is another solution.
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anhhai
Veteran Cruncher Joined: Mar 22, 2005 Post Count: 839 Status: Offline Project Badges: 
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An opt-in with the flex units as is with a significant disclaimer is another solution. I don't think many people who would want to crunch a WU for 48 hours without checkpoints. I might, but if somethings goes wrong, and I lose 47.5 hours worth of work, I wouldn't be crunching anymore of those WUs.  |
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KWSN-A Shrubbery
Senior Cruncher Joined: Jan 8, 2006 Post Count: 476 Status: Offline Project Badges:
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Agreed, but it does resolve the complaints of how do I get work and allows progress while they work on checkpointing. Hence the significant disclaimer.
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Sgt.Joe
Ace Cruncher USA Joined: Jul 4, 2006 Post Count: 7670 Status: Recently Active Project Badges:
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An opt-in with the flex units as is with a significant disclaimer is another solution. I don't think many people who would want to crunch a WU for 48 hours without checkpoints. I might, but if somethings goes wrong, and I lose 47.5 hours worth of work, I wouldn't be crunching anymore of those WUs. Since I have some machines which are 24/7, I would not mind units of that length. If some of them crashed, so be it, that is the price of research. Cheers
Sgt. Joe
*Minnesota Crunchers* |
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BobCat13
Senior Cruncher Joined: Oct 29, 2005 Post Count: 295 Status: Offline Project Badges: 
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I don't think many people who would want to crunch a WU for 48 hours without checkpoints. I might, but if somethings goes wrong, and I lose 47.5 hours worth of work, I wouldn't be crunching anymore of those WUs. Count me as one of the few then, as it wouldn't bother me at all to opt-in for those tasks. I have lost more hours than that on other projects that didn't checkpoint. Also, if there is no way to get the Vina application to checkpoint, WCG could run them in a Linux Virtual Machine. I recently finished a RNA World VM task that ran for just over 4,153 hours and had to be restarted from snapshots about 6 times over the course of its run. |
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littlepeaks
Veteran Cruncher USA Joined: Apr 28, 2007 Post Count: 748 Status: Offline Project Badges: 
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I would also be willing to run the longer WUs with no checkpointing. Typically, I reboot my PC once a month to install Windows Updates. And I usually make sure all the tasks have finished and request no new tasks before I do this.
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Eric_Kaiser
Veteran Cruncher Germany (Hessen) Joined: May 7, 2013 Post Count: 1047 Status: Offline Project Badges:
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Same here. My windows pc only restarts after security updates and the two linux pc slightly never.
----------------------------------------So I would opt in. No problem with long runtime.  |
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Sandvika
Advanced Cruncher United Kingdom Joined: Apr 27, 2007 Post Count: 112 Status: Offline Project Badges: 
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Ditto. The biggest risk to my computer going down is drop-outs in the electricity supply. I am perfectly capable of switching to other projects before any planned maintenance.
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Crystal Pellet
Veteran Cruncher Joined: May 21, 2008 Post Count: 1322 Status: Offline Project Badges:
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Don't forget there are 2 parts to the initial OET work. 1) The rather small set that was processed in 'Rigid' mode, the 560K results we've done 2) The held back 'Flex' mode tasks that run very long, depending on speed of device over 48 hours and -do not- checkpoint. This is magnitudes larger amount of work compared to 1. The latter is what the technicians are working on [zero info guess], to modify the AD VINA program so that checkpoints are taken in reasonable intervals. This intermediate checkpointing in a single docking run is novel and daunting, to achieve a model restore after resume without upsetting a single bit. Hi Rob, The best solution for the VINA's (long or short) is to send all OS's a Scientific Linux VM in which the tasks are processed. A wrapper can make a snapshot of the VM every 'write to disk interval' and all OS's benefits the faster running of the VINA's on Linux. The tasks within the VM don't have to checkpoint at all. CP |
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