... Xiaorui Wang Washington University in St. Louis Charles Lefurgy, Malcolm Ware IBM Research Di... more ... Xiaorui Wang Washington University in St. Louis Charles Lefurgy, Malcolm Ware IBM Research Division Austin Research Laboratory 11501 Burnet Road Austin, TX 78758 Research Division Almaden - Austin - Beijing - Haifa - India - TJ Watson - Tokyo - Zurich ...
In one embodiment, a control system supports an unlimited number of feedback control loops all sh... more In one embodiment, a control system supports an unlimited number of feedback control loops all sharing control of a component. A component performance rate or “speed” is used as a common metric for negotiating control of the component. Each control loop continuously monitors a system parameter it is tasked with regulating, compares it to a setpoint for that system parameter, and “requests” a speed in relation to the deviation of the associated system parameter from the corresponding setpoint. A controller receives the requested ...
Abstract: A mechanism is provided for oversubscribing branch circuits. An active energy managemen... more Abstract: A mechanism is provided for oversubscribing branch circuits. An active energy management mechanism determines a cumulative wattage rating using power consumption information for a powered element, the power consumption information is for a primary and a redundant portion of the powered element. The active energy management mechanism determines a power reduction power cap to be used by the powered element in the event of a loss of either a primary or a redundant power source supplied to the powered element ...
Abstract: Methods, computers, and products for managing power consumption of a computer, the comp... more Abstract: Methods, computers, and products for managing power consumption of a computer, the computer including a computer processor and managing power consumption of a computer includes: dynamically during operation of the computer, setting, by an in-band power manager in dependence upon performance metrics of the computer processor, a current performance state ('p-state') of the computer processor; and providing, by the in-band power manager to an out-of-band power manager, the current p-state of the computer ...
A method, system, and computer program product for optimizing power consumption of an executing p... more A method, system, and computer program product for optimizing power consumption of an executing processor executing. The method includes determining a first sensitivity relationship (SR) based on a first and a second performance metric value (PMV) measured at a first and second operating frequency (OF), respectively. The first SR predicts workload performance over a range of OFs. A third OF is determined based on the first SR and a specified workload performance floor. A third PMV is measured by executing the ...
... Xiaorui Wang Washington University in St. Louis Charles Lefurgy, Malcolm Ware IBM Research Di... more ... Xiaorui Wang Washington University in St. Louis Charles Lefurgy, Malcolm Ware IBM Research Division Austin Research Laboratory 11501 Burnet Road Austin, TX 78758 Research Division Almaden - Austin - Beijing - Haifa - India - TJ Watson - Tokyo - Zurich ...
In one embodiment, a control system supports an unlimited number of feedback control loops all sh... more In one embodiment, a control system supports an unlimited number of feedback control loops all sharing control of a component. A component performance rate or “speed” is used as a common metric for negotiating control of the component. Each control loop continuously monitors a system parameter it is tasked with regulating, compares it to a setpoint for that system parameter, and “requests” a speed in relation to the deviation of the associated system parameter from the corresponding setpoint. A controller receives the requested ...
Abstract: A mechanism is provided for oversubscribing branch circuits. An active energy managemen... more Abstract: A mechanism is provided for oversubscribing branch circuits. An active energy management mechanism determines a cumulative wattage rating using power consumption information for a powered element, the power consumption information is for a primary and a redundant portion of the powered element. The active energy management mechanism determines a power reduction power cap to be used by the powered element in the event of a loss of either a primary or a redundant power source supplied to the powered element ...
Abstract: Methods, computers, and products for managing power consumption of a computer, the comp... more Abstract: Methods, computers, and products for managing power consumption of a computer, the computer including a computer processor and managing power consumption of a computer includes: dynamically during operation of the computer, setting, by an in-band power manager in dependence upon performance metrics of the computer processor, a current performance state ('p-state') of the computer processor; and providing, by the in-band power manager to an out-of-band power manager, the current p-state of the computer ...
A method, system, and computer program product for optimizing power consumption of an executing p... more A method, system, and computer program product for optimizing power consumption of an executing processor executing. The method includes determining a first sensitivity relationship (SR) based on a first and a second performance metric value (PMV) measured at a first and second operating frequency (OF), respectively. The first SR predicts workload performance over a range of OFs. A third OF is determined based on the first SR and a specified workload performance floor. A third PMV is measured by executing the ...
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