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World Community Grid Forums
Category: Retired Forums
Forum: The New Members Forum [Read Only]
Thread: System Standby and/or Hibernate |
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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 |
Love & light to all this beautiful day.
I have my system set to go into "Standby" after 1 hour and "Hibernate" after two hours of non-usage. Does anyone know if those power settings effect the processing ability of my computer? Thanks in advance for your response(s). Namaste, Brad |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Brad --
I believe processing will stop in both cases. With Standby, processing stops, devices such as your disk drives stop spinning and memory maintains power. When you hit Hibernate, your memory is backed up to disk for later power up and the system actually shuts down. So, if you want to support the WCG 24/7, you cannot use these capabilites. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Thanks, Charles. How about shutting down my Hard Drive? Should I discontinue that action as well?
Brad |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
The Rosetta program writes to the hard disk each time it makes a new fold prediction. On my computer that usually happens in less than 10 minutes. After the assigned number of fold predictions (usually more than a hundred) it returns the results and gets a new Work Unit. If you shut down the computer, then when the program starts up it simply reads the hard disk and starts the next fold prediction in sequence, so that it never loses more than a few minutes of computation.
But the result is that the hard disk is accessed every few minutes, so it never shuts down while Rosetta is running. [I had better mention that each protein is folded about 10,000 times by Rosetta using different parameters and the results are post-processed by the ISB to produce the final prediction.] |
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Viktors
Former World Community Grid Tech Joined: Sep 20, 2004 Post Count: 653 Status: Offline Project Badges: 
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If you don't shut down your machine, that is, you either hibernate it or put it in standby, Rosetta should be able to resume computations without losing even a few minutes of computing. It does stop running during the hibernation or suspend periods, of course. If you shutdown, reboot your machine, or power it off, then a few minutes of the Rosetta computation may be lost, but that is not really a problem for us.
By "shutting down my hard drive" I presume you mean setting the power management in your system to stop the hard drive spinning after N minutes of no disk activity. This will not affect the Rosetta calculation results. When the hard drive is needed to write something, it will automatically turn back on. If you are disconnecting your hard drive from the system because it is a USB or otherwise attached external drive, and if you installed the agent there, then removing it while Rosetta is running is not a good idea. You should exit the agent first and make sure Windows thinks that all use of the drive has stopped before detaching it (using the "Unplug or Eject Hardware" icon in the system tray). Otherwise, it is possible to corrupt some files. |
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