Automatic restart and resume of computing system upon...

Details Automatic restart and resume of computing system upon... Automatic restart and resume of computing system upon...

2007-07-03

2007-07-03

Perveen, Rehana (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

C713S001000

Reexamination Certificate

active

10919113

ABSTRACT:
The automatic restart and resume of computing systems upon reapplication of external power, especially in the context of grid computing, is disclosed. A method receives a signal, such as an ACPI S4 signal, indicating that a power source of a computing system has discharged below a predetermined threshold level. The method sets a flag corresponding to signal receipt. The system enters hibernation or another state. Upon learning that external power has been reapplied, the method determines that the flag is set, and resets it. The system is caused to enter an unattended operation mode in which, for instance, grid-computing tasks may be resumed.

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Mark Baker et al., Grids and grid technologies for wide-area distributed computing, Software—Practice and Experience (2002).
Advanced Configuration and Power Interface (ACPI) Specification, sections 1-3, Revision 2.0c, Aug. 25, 2003.

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