Power management in federated/distributed shared memory...

Details Power management in federated/distributed shared memory... Power management in federated/distributed shared memory...

2009-01-20

2011-12-13

Stiglic, Ryan (Department: 2111)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S330000

Reexamination Certificate

active

08078897

ABSTRACT:
This invention is a power management scheme for a shared memory multiprocessor system which splits the control logic between the master-specific logic and memory bank logic. Power-down is initiated from a central power-down controller. This central power-down controller informs the master and target specific logic. Further memory accesses are blocked. All pending activities complete. The central controller then proceeds to power down the memory and informs the master and target specific logic upon completion. No requests for wakeup are initiated by master-specific logic from the time a power-down request is received until the completion of power-down.

REFERENCES:
patent: 7796458 (2010-09-01), Rao
patent: 7894229 (2011-02-01), Lahtinen et al.
patent: 2008/0056051 (2008-03-01), Mayer et al.
patent: 2008/0313482 (2008-12-01), Karlapalem et al.
patent: 2009/0147557 (2009-06-01), Lahtinen et al.
patent: WO 2007072435 (2007-06-01), None

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