Patents by Inventor Prabhakar N. Kudva

Prabhakar N. Kudva has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8949101
    Abstract: Mechanisms are provided for predicting effects of soft errors on an integrated circuit device design. A data processing system is configured to implement a unified derating tool that includes a machine derating front-end engine used to generate machine derating information, and an application derating front-end engine used to generate application derating information, for the integrated circuit device design. The machine derating front-end engine executes a simulation of the integrated circuit device design to generate the machine derating information. The application derating front-end engine executes an application workload on existing hardware similar in architecture to the integrated circuit device design and injects a fault into the existing hardware during execution of the application workload to generate application derating information.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: February 3, 2015
    Assignee: International Business Machines Corporation
    Inventors: Pradip Bose, Meeta S. Gupta, Prabhakar N. Kudva, Daniel A. Prener
  • Patent number: 8832707
    Abstract: An attribute of a descriptor associated with a task informs a runtime environment of which instructions a processor is to run to schedule a plurality if resources for completion of the task in accordance with a level of quality of service in a service level agreement.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: September 9, 2014
    Assignee: International Business Machines Corporation
    Inventors: Daniel J. Henderson, Prabhakar N. Kudva, Naresh Nayar, Pia Naoko Sanda, David William Siegel, James Van Oosten, James Xenidis
  • Patent number: 8639955
    Abstract: A system and method for controlling power and performance in a microprocessor system includes a monitoring and control system integrated into a microprocessor system. The monitoring and control system includes a hierarchical architecture having a plurality of layers. Each layer in the hierarchal architecture is responsive to commands from a higher level, and the commands provide instructions on operations and power distribution, such that the higher levels provide modes of operation and budgets to lower levels and the lower levels provide feedback to the higher levels to control and manage power usage in the microprocessor system both globally and locally.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: January 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Pradip Bose, Alper Buyuktosunoglu, Chen-Yong Cher, Prabhakar N. Kudva
  • Publication number: 20130096902
    Abstract: Mechanisms are provided for predicting effects of soft errors on an integrated circuit device design. A data processing system is configured to implement a unified derating tool that includes a machine derating front-end engine used to generate machine derating information, and an application derating front-end engine used to generate application derating information, for the integrated circuit device design. The machine derating front-end engine executes a simulation of the integrated circuit device design to generate the machine derating information. The application derating front-end engine executes an application workload on existing hardware similar in architecture to the integrated circuit device design and injects a fault into the existing hardware during execution of the application workload to generate application derating information.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Pradip Bose, Meeta S. Gupta, Prabhakar N. Kudva, Daniel A. Prener
  • Publication number: 20120054528
    Abstract: A system and method for controlling power and performance in a microprocessor system includes a monitoring and control system integrated into a microprocessor system. The monitoring and control system includes a hierarchical architecture having a plurality of layers. Each layer in the hierarchal architecture is responsive to commands from a higher level, and the commands provide instructions on operations and power distribution, such that the higher levels provide modes of operation and budgets to lower levels and the lower levels provide feedback to the higher levels to control and manage power usage in the microprocessor system both globally and locally.
    Type: Application
    Filed: November 9, 2011
    Publication date: March 1, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: PRADIP BOSE, Alper Buyuktosunoglu, Chen-Yong Cher, Prabhakar N. Kudva
  • Patent number: 8112642
    Abstract: A system and method for controlling power and performance in a microprocessor system includes a monitoring and control system integrated into a microprocessor system. The monitoring and control system includes a hierarchical architecture having a plurality of layers. Each layer in the hierarchal architecture is responsive to commands from a higher level, and the commands provide instructions on operations and power distribution, such that the higher levels provide modes of operation and budgets to lower levels and the lower levels provide feedback to the higher levels to control and manage power usage in the microprocessor system both globally and locally.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: February 7, 2012
    Assignee: International Business Machines Corporation
    Inventors: Pradip Bose, Alper Buyuktosunoglu, Chen-Yong Cher, Prabhakar N. Kudva
  • Patent number: 8091050
    Abstract: Mechanisms for modeling system level effects of soft errors are provided. Mechanisms are provided for integrating device-level and component-level soft error rate (SER) analysis mechanisms with micro-architecture level performance analysis tools during a concept phase of the IC design to thereby generate a SER analysis tool. A first SER profile for the IC design is generated by applying the SER analysis tool to the IC design. At a later phase of the IC design, detailed information about SER vulnerabilities of logic and storage elements within the IC design are obtained and the first SER profile is refined based on the detailed information about SER vulnerabilities to thereby generate a second SER profile for the IC design. Modifications to the IC design are made at one or more phases of the IC design based on one of the first SER profile or the second SER profile.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: January 3, 2012
    Assignee: International Business Machines Corporation
    Inventors: Pradip Bose, Prabhakar N. Kudva, Jude A. Rivers, Pia N. Sanda, John-David Wellman
  • Publication number: 20110154351
    Abstract: An attribute of a descriptor associated with a task informs a runtime environment of which instructions a processor is to run to schedule a plurality of resources for completion of the task in accordance with a level of quality of service in a service level agreement.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 23, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel J. Henderson, Prabhakar N. Kudva, Naresh Nayar, Pia Naoko Sanda, David W. Siegel, James L. Van Oosten, James Xenidis
  • Patent number: 7930578
    Abstract: A method of power management of a system of connected components includes initializing a token allocation map across the connected components, wherein each component is assigned a power budget as determined by a number of allocated tokens in the token allocation map, monitoring utilization sensor inputs and command state vector inputs, determining, at first periodic time intervals, a current performance level, a current power consumption level and an assigned power budget for the system based on the utilization sensor inputs and the command state vector inputs, and determining, at second periodic time intervals, a token re-allocation map based on the current performance level, the current power consumption level and the assigned power budget for the system, according to a re-assigned power budget of at least one of the connected components, while enforcing a power consumption limit based on a total number of allocated tokens in the system.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: April 19, 2011
    Assignee: International Business Machines Corporation
    Inventors: Pradip Bose, Alper Buyuktosunoglu, Chen-Yong Cher, Zhigang Hu, Hans Jacobson, Prabhakar N. Kudva, Vijayalakshmi Srinivasan, Victor Zyuban
  • Patent number: 7801835
    Abstract: A system for and method of constructing an executable reusable procedure which includes determining an executable procedure from at least one scored trace of a procedure execution.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: September 21, 2010
    Assignee: International Business Machines Corporation
    Inventors: Lawrence Bergman, Vittorio Castelli, Prabhakar N. Kudva, Tessa A. Lau, Daniel A. Oblinger
  • Patent number: 7723207
    Abstract: A three dimensional (3D) integrated circuit (IC), 3D IC chip and method of fabricating a 3D IC chip. The chip includes multiple layers of circuits, e.g., silicon insulator (SOI) CMOS IC layers, each including circuit elements. The layers may be formed in parallel and one layer attached to another to form a laminated 3D chip.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: May 25, 2010
    Assignee: International Business Machines Corporation
    Inventors: Syed M. Alam, Ibrahim M. Elfadel, Kathryn W Guarini, Meikei Ieong, Prabhakar N. Kudva, David S. Kung, Mark A. Lavin, Arifur Rahman
  • Publication number: 20100083203
    Abstract: Mechanisms for modeling system level effects of soft errors are provided. Mechanisms are provided for integrating device-level and component-level soft error rate (SER) analysis mechanisms with micro-architecture level performance analysis tools during a concept phase of the IC design to thereby generate a SER analysis tool. A first SER profile for the IC design is generated by applying the SER analysis tool to the IC design. At a later phase of the IC design, detailed information about SER vulnerabilities of logic and storage elements within the IC design are obtained and the first SER profile is refined based on the detailed information about SER vulnerabilities to thereby generate a second SER profile for the IC design. Modifications to the IC design are made at one or more phases of the IC design based on one of the first SER profile or the second SER profile.
    Type: Application
    Filed: October 1, 2008
    Publication date: April 1, 2010
    Applicant: International Business Machines Corporation
    Inventors: Pradip Bose, Prabhakar N. Kudva, Jude A. Rivers, Pia N. Sanda, John-David Wellman
  • Patent number: 7685457
    Abstract: An integrated circuit including a pipeline and a method of operating the pipeline. Each stage of the pipeline is triggered by one or more triggering events and are individually, and selectively, stalled by a stall signal. For each stage a stall signal, delayed with respect to the stall signal of a downstream stage, is generated and used to select whether the pipeline stage in question is triggered. A data valid signal propagating with valid data adds further selection, such that only stages with valid data are stalled.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: March 23, 2010
    Assignee: International Business Machines Corporation
    Inventors: Hans M. Jacobson, Prabhakar N. Kudva, Pradip Bose, Peter W. Cook, Stanley E. Schuster
  • Patent number: 7676779
    Abstract: A system for logic block timing analysis may include a controller, and storage in communication with the controller. The storage may provide delay-versus-conesize values of a logic block. The system may further include a fitting module to provide a delay-cone based upon the delay-versus-conesize values of the logic block. The system may also include a conesize parser that uses the delay-cone to provide delay values through the logic block. The conesize parser may be used to validate the design of the logic block by comparing the delay-cone with a desired cycle time.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: March 9, 2010
    Assignee: International Business Machines Corporation
    Inventors: Reinaldo A. Bergamaschi, Sean M. Carey, Brian W. Curran, Prabhakar N. Kudva, Matthew E. Mariani, Mark D. Mayo, Ruchir Puri
  • Publication number: 20090089602
    Abstract: A method of power management of a system of connected components includes initializing a token allocation map across the connected components, wherein each component is assigned a power budget as determined by a number of allocated tokens in the token allocation map, monitoring utilization sensor inputs and command state vector inputs, determining, at first periodic time intervals, a current performance level, a current power consumption level and an assigned power budget for the system based on the utilization sensor inputs and the command state vector inputs, and determining, at second periodic time intervals, a token re-allocation map based on the current performance level, the current power consumption level and the assigned power budget for the system, according to a re-assigned power budget of at least one of the connected components, while enforcing a power consumption limit based on a total number of allocated tokens in the system.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 2, 2009
    Inventors: Pradip Bose, Alper Buyuktosunoglu, Chen-Yong Cher, Zhigang Hu, Hans Jacobson, Prabhakar N. Kudva, Vijayalakshmi Srinivasan, Victor Zyuban
  • Publication number: 20090070720
    Abstract: A system to identify timing differences due to logic block changes, the system may include a controller, and storage in communication with the controller. The controller may provide delay values of a previous logic block and a current logic block. The system may also include a timing-modeler to compare the delay values of the previous logic block with the current logic block for timing analysis. The system may further include an interface that provides a report based upon the previous logic block and the current logic block comparison.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 12, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Reinaldo A. Bergamaschi, Sean M. Carey, Brian W. Curran, Prabhakar N. Kudva, Lawrence Lange, Matthew E. Mariani, Mark D. Mayo, Ruchir Puri, Gebhard Weber
  • Publication number: 20090070719
    Abstract: A system for logic block timing analysis may include a controller, and storage in communication with the controller. The storage may provide delay-versus-conesize values of a logic block. The system may further include a fitting module to provide a delay-cone based upon the delay-versus-conesize values of the logic block. The system may also include a conesize parser that uses the delay-cone to provide delay values through the logic block. The conesize parser may be used to validate the design of the logic block by comparing the delay-cone with a desired cycle time.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 12, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Reinaldo A. Bergamaschi, Sean M. Carey, Brian W. Curran, Prabhakar N. Kudva, Matthew E. Mariani, Mark D. Mayo, Ruchir Puri
  • Publication number: 20090049318
    Abstract: A system and method for controlling power and performance in a microprocessor system includes a monitoring and control system integrated into a microprocessor system. The monitoring and control system includes a hierarchical architecture having a plurality of layers. Each layer in the hierarchal architecture is responsive to commands from a higher level, and the commands provide instructions on operations and power distribution, such that the higher levels provide modes of operation and budgets to lower levels and the lower levels provide feedback to the higher levels to control and manage power usage in the microprocessor system both globally and locally.
    Type: Application
    Filed: June 3, 2008
    Publication date: February 19, 2009
    Inventors: Pradip Bose, Alper Buyuktosunoglu, Chen-Yong Cher, Prabhakar N. Kudva
  • Patent number: 7475227
    Abstract: A method of operating an integrated circuit including a pipeline and a method of stalling stages in the pipeline. Each stage of the pipeline is triggered by one or more triggering events and are individually, and selectively, stalled by a stall signal. For each stage a stall signal, delayed with respect to the stall signal of a downstream stage, is generated and used to select whether the pipeline stage in question is triggered. A data valid signal propagating with valid data adds further selection, such that only stages with valid data are stalled.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: January 6, 2009
    Assignee: International Business Machines Corporation
    Inventors: Hans M. Jacobson, Prabhakar N. Kudva, Pradip Bose, Peter W. Cook, Stanley E. Schuster
  • Patent number: 7421601
    Abstract: A system and method for controlling power and performance in a microprocessor system includes a monitoring and control system integrated into a microprocessor system. The monitoring and control system includes a hierarchical architecture having a plurality of layers. Each layer in the hierarchical architecture is responsive to commands from a higher level, and the commands provide instructions on operations and power distribution, such that the higher levels provide modes of operation and budgets to lower levels and the lower levels provide feedback to the higher levels to control and manage power usage in the microprocessor system both globally and locally.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: September 2, 2008
    Assignee: International Business Machines Corporation
    Inventors: Pradip Bose, Alper Buyuktosunoglu, Chen-Yong Cher, Prabhakar N. Kudva