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Sekerob
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Joined: Jul 24, 2005
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BOINC: Stop work after Computer is Idle for X minutes

The "Stop work after Computer is Idle for 20 minutes" option is a so-called Green option. It is currently only available via the website "device profiles" and works for clients from version 5.10.23. When the client is set to "Run based on Preferences" and no input from keyboard or mouse is received for the entered amount of time BOINC will suspend computing. This facilitates the operating system [if it can and is configured to do so] to enter into sleep or hibernation mode or switch the CPU down to it's lowest wait state cycles in order to reducing power consumption to the minimum in standby mode.

Those who run computers just in short sessions during the day could extend that suspend time to let BOINC continue during breaks, but when it's end of the day then still let the client stop after for instance 90 minutes.

Users who opt into this function are recommended to also set the "Leave application in memory when suspended" aka LAIM, though the WCG preset Power Savings profile has this as off. What this does is, that if the client resumes after being woken up, to resume from the last moment of computing, lossless. If this option is not set, the tasks will resume from the last checkpoint saved, which depending on the variable intervals can be from minutes to hours apart. Recommended to activate!

NB: This "Stop work after Computer is Idle for X minutes" is at other distributed computing grids known as "Suspend work if no mouse/keyboard activity in last X min"

Related topics:
BOINC: Website Device Profile & Local Preferences Information

BOINC: Pause, Snooze, Suspend and Resume processing Manually or Automatic

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[Edit 2 times, last edit by Sekerob at Oct 5, 2010 4:05:24 PM]
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