Hierarchical system and method for managing power usage among server data processing systems
First Claim
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1. A hierarchical power management system comprising:
- a first power management controller;
a second power management controller;
a power management command combination element;
a power management command terminator;
a power-managed data processing system element; and
a power management bus coupled between said first power management controller, said second power management controller, said power management command combination element, and said power management command terminator, wherein said power management command combination element is configured to combine respective commands received from said first and second power management controllers and provide a combined power management command to said power management command terminator, and wherein said combined power management command corresponds to a most power usage restrictive command included within the respective commands.
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Abstract
A hierarchical power management system comprises first and second power management controllers, a power management command combination element, a power management command terminator, a power-managed data processing system element, and a power management bus coupled between the power management controllers, power management command combination element, and power management command terminator.
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Citations
20 Claims
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1. A hierarchical power management system comprising:
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a first power management controller; a second power management controller; a power management command combination element; a power management command terminator; a power-managed data processing system element; and a power management bus coupled between said first power management controller, said second power management controller, said power management command combination element, and said power management command terminator, wherein said power management command combination element is configured to combine respective commands received from said first and second power management controllers and provide a combined power management command to said power management command terminator, and wherein said combined power management command corresponds to a most power usage restrictive command included within the respective commands. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for managing power usage within a hierarchical power management system comprising a first power management controller, a second power management controller, and a power management command combination element, said method comprising:
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generating a first power management command bit signal utilizing said first power management controller, wherein said first power management controller is associated with a first power management hierarchical level; generating a second power management command bit signal utilizing said second power management controller, wherein said second power management controller is associated with a second power management hierarchical level; combining said first power management command bit signal and said second power management command bit signal utilizing said power management command combination element to provide a combined power management command bit signal that corresponds to a most power usage restrictive command bit signal included within said first and second power management command bit signals; and performing a power management operation on a power-managed data processing system element associated with said hierarchical power management system in response to said combining. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A machine-readable medium having a plurality of instructions executable by a machine embodied therein, wherein said plurality of instructions when executed cause said machine to perform a method for managing power usage within a hierarchical power management system comprising a first power management controller, a second power management controller, and a power management command combination element, said method comprising:
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generating a first power management command bit signal utilizing said first power management controller, wherein said first power management controller is associated with a first power management hierarchical level; generating a second power management command bit signal utilizing said second power management controller, wherein said second power management controller is associated with a second power management hierarchical level; combining said first power management command bit signal and said second power management command bit signal utilizing said power management command combination element to provide a combined power management command bit signal that corresponds to a most power usage restrictive command bit signal included within said first and second power management command bit signals; and performing a power management operation on a power-managed data processing system element associated with said hierarchical power management system in response to said combining. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification