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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Is there a way to manually force a check-point of the tasks? |
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Thread Status: Active Total posts in this thread: 3
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cgrenier
Cruncher Joined: Jul 9, 2007 Post Count: 1 Status: Offline Project Badges: 
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Hi!
I am running some Clean Energy tasks which are pretty long (often more then 10 hours) and often, when I have to reboot my workstation, I loose a few hours of processing because the BOINC agent doesn't seem to check-point the work in progress. Is there a way I can force a check-point before going down? That would help because I often end-up missing the task deadline time or have to cancel a task that will miss it. Merci! Thank You! Christian |
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ca05065
Senior Cruncher Joined: Dec 4, 2007 Post Count: 325 Status: Offline Project Badges: 
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Check-pointing can only be requested by the science application. CEP2 is only suitable for running 24/7 or using the Windows sleep function to write the contents of memory to disk before closing down. I found I had to leave the power connected to the PC otherwise the CEP2 work unit did not always resume correctly.
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Crystal Pellet
Veteran Cruncher Joined: May 21, 2008 Post Count: 1320 Status: Offline Project Badges: 
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Is there a way I can force a check-point before going down? That would help because I often end-up missing the task deadline time or have to cancel a task that will miss it. Merci! Thank You! Christian One way to force a checkpoint is to create a Virtual Machine on your host, install BOINC on it and attach the VM-BOINC to WCG with a CEP2 profile only. Depending on your host, the guest VM could have 1 or more cores. Before shutting down your host, you first have to pause the VM and take a snapshot of the VM. After rebooting the host, you can restart the CEP2-task where you left it by restoring the VM from the last snapshot. |
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