Sleep question

when the option of spinning down the HD is on the computer fails to wake up
flarosa wrote on :
I need to run a program on my macbook that will take serveral hours to complete. If I leave it unattended, will it fall asleep and stop running the program until it wakes up? Or is the OS smart enough to realize that I'm running something?
Doug Anderson replied on :

flarosa frank@redacted.invalid writes:

I need to run a program on my macbook that will take serveral hours to complete. If I leave it unattended, will it fall asleep and stop running the program until it wakes up? Or is the OS smart enough to realize that I'm running something?

I can never figure out how the OS decides whether the running program is important enough to keep it awake - I'd love to know the answer to that!

Pragmatically, you can open System Preferences -> Energy saver, and set the sleep slider to "Never." Then you don't need to worry about this, and you can set it back where you like after your program runs.

Daniel Cohen replied on :

Doug Anderson ethelthelogremovethis@redacted.invalid wrote:

Pragmatically, you can open System Preferences -> Energy saver, and set the sleep slider to "Never." Then you don't need to worry about this, and you can set it back where you like after your program runs.

Or use free little programs like Jiggler or Caffeine. They save a few keystrokes compared with resetting Energy Saver.