Reducing power consumption during execution of an application on a plurality of compute nodes

Archer, Charles J.; Blocksome, Michael A.; Peters, Amanda E.; Ratterman, Joseph D.; Smith, Brian E.

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

All Classifications
A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

More Options ...

Title: Reducing power consumption during execution of an application on a plurality of compute nodes

Abstract

Methods, apparatus, and products are disclosed for reducing power consumption during execution of an application on a plurality of compute nodes that include: powering up, during compute node initialization, only a portion of computer memory of the compute node, including configuring an operating system for the compute node in the powered up portion of computer memory; receiving, by the operating system, an instruction to load an application for execution; allocating, by the operating system, additional portions of computer memory to the application for use during execution; powering up the additional portions of computer memory allocated for use by the application during execution; and loading, by the operating system, the application into the powered up additional portions of computer memory.

Inventors:: Archer, Charles J.; Blocksome, Michael A.; Peters, Amanda E.; Ratterman, Joseph D.; Smith, Brian E.

Issue Date:: 2013-09-10

Research Org.:: International Business Machines Corp., Armonk, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1093238

Patent Number(s):: 8533504

Application Number:: 12/129,334

Assignee:: International Business Machines Corporation (Armonk, NY)

Patent Classifications (CPCs):: G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02D - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE

Show more

G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
G06F1/3203 - Power management, i.e. event-based initiation of power-saving mode
G06F1/3287 - by switching off individual functional units in the computer system

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02D - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
Y02D10/00 - Energy efficient computing

Show less

DOE Contract Number:: B554331

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 97 MATHEMATICS AND COMPUTING

Citation Formats


                    Archer, Charles J., Blocksome, Michael A., Peters, Amanda E., Ratterman, Joseph D., and Smith, Brian E. Reducing power consumption during execution of an application on a plurality of compute nodes.  United States: N. p., 2013. 
        Web.

Copy to clipboard


                    Archer, Charles J., Blocksome, Michael A., Peters, Amanda E., Ratterman, Joseph D., & Smith, Brian E. Reducing power consumption during execution of an application on a plurality of compute nodes.  United States.

Copy to clipboard


                    Archer, Charles J., Blocksome, Michael A., Peters, Amanda E., Ratterman, Joseph D., and Smith, Brian E. Tue .  
        "Reducing power consumption during execution of an application on a plurality of compute nodes".  United States.  https://www.osti.gov/servlets/purl/1093238.

Copy to clipboard


                    
@article{osti_1093238,

  title        = {Reducing power consumption during execution of an application on a plurality of compute nodes},

  author       = {Archer, Charles J. and Blocksome, Michael A. and Peters, Amanda E. and Ratterman, Joseph D. and Smith, Brian E.},

  abstractNote = {Methods, apparatus, and products are disclosed for reducing power consumption during execution of an application on a plurality of compute nodes that include: powering up, during compute node initialization, only a portion of computer memory of the compute node, including configuring an operating system for the compute node in the powered up portion of computer memory; receiving, by the operating system, an instruction to load an application for execution; allocating, by the operating system, additional portions of computer memory to the application for use during execution; powering up the additional portions of computer memory allocated for use by the application during execution; and loading, by the operating system, the application into the powered up additional portions of computer memory.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2013},

  month        = {9}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Power management system and method
patent-application, February 2011

Walrath, Craig A.
US Patent Application 12/898973; 20110029799
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20110029799

Systems and methods for predicting failure of electronic systems and assessing level of degradation and remaining useful life
patent, January 2012

Kalgren, Patrick W.; Ginart, Antonio; Nanduri, Sashank
US Patent Document 8,103,463
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8103463

Method and apparatus for profiling power performance of software applications
patent-application, August 2005

Banginwar, Rajesh; Gorbatov, Eugene
US Patent Application 10/773860: 20050177327
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050177327

Protocol-to-protocol translator for interfacing disparate serial network nodes to a common parallel switching network
patent, July 1996

Olnowich, Howard Thomas
US Patent Document 5,535,373
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5535373

Performance state-based thread management
patent, April 2009

Nakajima, Jun; Bodas, Devadatta V.
US Patent Document 7,526,661
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7526661

Apparatus, system and method for adjusting a set of actual power states according to a function depending on a set of desired power states
patent, December 2007

Reilly, Patrick
US Patent Document 7,305,569
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7305569

MPI-aware networking infrastructure
patent-application, December 2006

Gupta, Rinku; Abels, Timothy
US Patent Application 11/147783; 20060282838
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20060282838

Power management system and method for controlling use of power-consuming applications
patent, October 2009

Walrath, Craig A.
US Patent Document 7,598,702
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7598702

Packet sniffer node and system including the same to assess wireless communication performance
patent, April 2010

Armstrong, Brian Stewart Randall; Pereira, Luis R.; Das, Sujit R.
US Patent Document 7,697,495
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7697495

Dynamic performance and resource management in a processing system
patent-application, August 2004

McAlinden, Paul; Glenn, Scott C.
US Patent Application 10/336132; 20040153867
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040153867

Application management based on power consumption
patent-application, March 2005

Farkas, Keith Istvan; Ranganathan, Parthasarathy
US Patent Application 10/654473; 20050055590
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050055590

Memory manager for heterogeneous memory control
patent-application, February 2007

Sakarda, Premanand; Brandt, Todd; Wu, Hai Hua
US Patent Application 11/196959; 20070033367
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070033367

System and method for monitoring memory usage
patent-application, November 2006

Schank, Eric David; Smith, Steven
US Patent Application 11/121556; 20060253507
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20060253507

Power consumption management among compute nodes
patent-application, March 2007

Ranganathan, Parthasarathy; Alzien, Khaldoun; Leech, Phillip
US Patent Application 11/232526; 20070067657
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070067657

Fault tolerant multi-node computing system using periodically fetched configuration status data to detect an abnormal node
patent, January 2011

Fujiyama, Kenichiro; Nakamura, Nobutatsu
US Patent Document 7,870,439
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7870439

System for Allocating Resources in a Distributed Computing System
patent-application, July 2009

Williams, Michael L.; Forsman, Michael L.; Mays, James J.
US Patent Application 12/018021; 20090187658
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090187658

Power Partitioning Memory Banks
patent-application, December 2008

Karlapalem, Sainath; Kulkarni, Milind Manohar
US Patent Application 12/158983; 20080313482
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080313482

Various apparatuses and methods for reduced power states in system memory
patent-application, January 2007

Jain, Sandeep; Kardach, JAmes P.
US Patent Application 11/174060; 20070005998
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070005998

Adjusting power budgets of multiple servers
patent-application, December 2007

Goodrum, Alan L.; Tipley, Roger F.
US Patent Application 11/475418; 20070300083
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070300083

Adaptive Memory System for Enhancing the Performance of an External Computing Device
patent-application, January 2009

Fisher, Louis Cameron; Hellriegel, Stephen V. R.; Ahmadnia, Mohammad S.
US Patent Application 11/972537; 20090024819
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090024819

System and Method for Managing Energy Consumption in a Compute Environment
patent-application, October 2009

Jackson, David B.
US Patent Application 12/179142; 20090265568
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090265568

Dynamic power requirement budget manager
patent, October 2007

Nalawadi, Rajeev K.; Van Deusen, Mark P.
US Patent Document 7,281,146
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7281146

Using priorities to select power usage for multiple devices
patent-application, July 2008

McGrane, Sean Nicholas; Parchem, John M.
US Patent Application 11/655956; 20080178029
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080178029

System and method for managing power consumption within an integrated circuit
patent, October 2007

Clark, Lawrence T.; Morrow, Michael William
US Patent Document 7,284,137
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7284137

Fault tolerant network utilizing bi-directional point-to-point communications links between nodes
patent, May 2012

Knapp, David J.
US Patent Document 8,179,787
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8179787

Power source dependent program execution
patent, May 2010

Esliger, James Lyall
US Patent Document 7,716,500
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7716500

Prioritizing power-consuming applications of an electronic device powered by a battery
patent, August 2011

Walrath, Craig A.
US Patent Document 8,004,234
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8004234

Generating synthetic workloads to measure power utilization in a computer system
patent-application, September 2008

Gross, Kenny C.; Dhanekula, Ramakrishna; Vaidyanathan, Kalyanaraman
US Patent Application 11/725006; 20080228462
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080228462

Power efficient resource allocation in data centers
patent-application, September 2008

Gorbatov, Eugene; Isci, Canturk; Nathuji, Ripal
US Patent Application 11/726218; 20080234873
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080234873

Power management system and method
patent-application, November 2007

Walrath, Craig A.
US Patent Application 11/412490; 20070252552
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070252552

Similar Records in DOE Patents and OSTI.GOV collections:

Reducing power consumption while synchronizing a plurality of compute nodes during execution of a parallel application

Patent Archer, Charles J [Rochester, MN]; Blocksome, Michael A [Rochester, MN]; Peters, Amanda A [Rochester, MN]; ...

Methods, apparatus, and products are disclosed for reducing power consumption while synchronizing a plurality of compute nodes during execution of a parallel application that include: beginning, by each compute node, performance of a blocking operation specified by the parallel application, each compute node beginning the blocking operation asynchronously with respect to the other compute nodes; reducing, for each compute node, power to one or more hardware components of that compute node in response to that compute node beginning the performance of the blocking operation; and restoring, for each compute node, the power to the hardware components having power reduced inmore » « less
Full Text Available
Reducing power consumption while synchronizing a plurality of compute nodes during execution of a parallel application

Patent Archer, Charles J [Rochester, MN]; Blocksome, Michael A [Rochester, MN]; Peters, Amanda E [Cambridge, MA]; ...

Methods, apparatus, and products are disclosed for reducing power consumption while synchronizing a plurality of compute nodes during execution of a parallel application that include: beginning, by each compute node, performance of a blocking operation specified by the parallel application, each compute node beginning the blocking operation asynchronously with respect to the other compute nodes; reducing, for each compute node, power to one or more hardware components of that compute node in response to that compute node beginning the performance of the blocking operation; and restoring, for each compute node, the power to the hardware components having power reduced inmore » « less
Full Text Available
Budget-based power consumption for application execution on a plurality of compute nodes

Patent Archer, Charles J; Inglett, Todd A; Ratterman, Joseph D

Methods, apparatus, and products are disclosed for budget-based power consumption for application execution on a plurality of compute nodes that include: assigning an execution priority to each of one or more applications; executing, on the plurality of compute nodes, the applications according to the execution priorities assigned to the applications at an initial power level provided to the compute nodes until a predetermined power consumption threshold is reached; and applying, upon reaching the predetermined power consumption threshold, one or more power conservation actions to reduce power consumption of the plurality of compute nodes during execution of the applications.
Full Text Available
Budget-based power consumption for application execution on a plurality of compute nodes

Patent Archer, Charles J; Blocksome, Michael A; Peters, Amanda E; ...

Methods, apparatus, and products are disclosed for budget-based power consumption for application execution on a plurality of compute nodes that include: assigning an execution priority to each of one or more applications; executing, on the plurality of compute nodes, the applications according to the execution priorities assigned to the applications at an initial power level provided to the compute nodes until a predetermined power consumption threshold is reached; and applying, upon reaching the predetermined power consumption threshold, one or more power conservation actions to reduce power consumption of the plurality of compute nodes during execution of the applications.
Full Text Available
Scheduling applications for execution on a plurality of compute nodes of a parallel computer to manage temperature of the nodes during execution

Patent Archer, Charles J; Blocksome, Michael A; Peters, Amanda E; ...

Methods, apparatus, and products are disclosed for scheduling applications for execution on a plurality of compute nodes of a parallel computer to manage temperature of the plurality of compute nodes during execution that include: identifying one or more applications for execution on the plurality of compute nodes; creating a plurality of physically discontiguous node partitions in dependence upon temperature characteristics for the compute nodes and a physical topology for the compute nodes, each discontiguous node partition specifying a collection of physically adjacent compute nodes; and assigning, for each application, that application to one or more of the discontiguous node partitionsmore » « less
Full Text Available

Similar Records

Title: Reducing power consumption during execution of an application on a plurality of compute nodes

Abstract

Citation Formats

Power management system and method patent-application, February 2011

Systems and methods for predicting failure of electronic systems and assessing level of degradation and remaining useful life patent, January 2012

Method and apparatus for profiling power performance of software applications patent-application, August 2005

Protocol-to-protocol translator for interfacing disparate serial network nodes to a common parallel switching network patent, July 1996

Performance state-based thread management patent, April 2009

Apparatus, system and method for adjusting a set of actual power states according to a function depending on a set of desired power states patent, December 2007

MPI-aware networking infrastructure patent-application, December 2006

Power management system and method for controlling use of power-consuming applications patent, October 2009

Packet sniffer node and system including the same to assess wireless communication performance patent, April 2010

Dynamic performance and resource management in a processing system patent-application, August 2004

Application management based on power consumption patent-application, March 2005

Memory manager for heterogeneous memory control patent-application, February 2007

System and method for monitoring memory usage patent-application, November 2006

Power consumption management among compute nodes patent-application, March 2007

Fault tolerant multi-node computing system using periodically fetched configuration status data to detect an abnormal node patent, January 2011

System for Allocating Resources in a Distributed Computing System patent-application, July 2009

Power Partitioning Memory Banks patent-application, December 2008

Various apparatuses and methods for reduced power states in system memory patent-application, January 2007

Adjusting power budgets of multiple servers patent-application, December 2007

Adaptive Memory System for Enhancing the Performance of an External Computing Device patent-application, January 2009

System and Method for Managing Energy Consumption in a Compute Environment patent-application, October 2009

Dynamic power requirement budget manager patent, October 2007

Using priorities to select power usage for multiple devices patent-application, July 2008

System and method for managing power consumption within an integrated circuit patent, October 2007

Fault tolerant network utilizing bi-directional point-to-point communications links between nodes patent, May 2012

Power source dependent program execution patent, May 2010

Prioritizing power-consuming applications of an electronic device powered by a battery patent, August 2011

Generating synthetic workloads to measure power utilization in a computer system patent-application, September 2008

Power efficient resource allocation in data centers patent-application, September 2008

Power management system and method patent-application, November 2007

Power management system and method
patent-application, February 2011

Systems and methods for predicting failure of electronic systems and assessing level of degradation and remaining useful life
patent, January 2012

Method and apparatus for profiling power performance of software applications
patent-application, August 2005

Protocol-to-protocol translator for interfacing disparate serial network nodes to a common parallel switching network
patent, July 1996

Performance state-based thread management
patent, April 2009

Apparatus, system and method for adjusting a set of actual power states according to a function depending on a set of desired power states
patent, December 2007

MPI-aware networking infrastructure
patent-application, December 2006

Power management system and method for controlling use of power-consuming applications
patent, October 2009

Packet sniffer node and system including the same to assess wireless communication performance
patent, April 2010

Dynamic performance and resource management in a processing system
patent-application, August 2004

Application management based on power consumption
patent-application, March 2005

Memory manager for heterogeneous memory control
patent-application, February 2007

System and method for monitoring memory usage
patent-application, November 2006

Power consumption management among compute nodes
patent-application, March 2007

Fault tolerant multi-node computing system using periodically fetched configuration status data to detect an abnormal node
patent, January 2011

System for Allocating Resources in a Distributed Computing System
patent-application, July 2009

Power Partitioning Memory Banks
patent-application, December 2008

Various apparatuses and methods for reduced power states in system memory
patent-application, January 2007

Adjusting power budgets of multiple servers
patent-application, December 2007

Adaptive Memory System for Enhancing the Performance of an External Computing Device
patent-application, January 2009

System and Method for Managing Energy Consumption in a Compute Environment
patent-application, October 2009

Dynamic power requirement budget manager
patent, October 2007

Using priorities to select power usage for multiple devices
patent-application, July 2008

System and method for managing power consumption within an integrated circuit
patent, October 2007

Fault tolerant network utilizing bi-directional point-to-point communications links between nodes
patent, May 2012

Power source dependent program execution
patent, May 2010

Prioritizing power-consuming applications of an electronic device powered by a battery
patent, August 2011

Generating synthetic workloads to measure power utilization in a computer system
patent-application, September 2008

Power efficient resource allocation in data centers
patent-application, September 2008

Power management system and method
patent-application, November 2007