Patents by Inventor Krishnakanth Sistla

Krishnakanth Sistla 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).

  • Publication number: 20250076954
    Abstract: Hierarchical Power Management (HPM) architecture considers the limits of scaling on a power management controller, the autonomy at each die, and provides a unified view of the package to a platform. At a simplest level, HPM architecture has a supervisor and one or more supervisee power management units (PMUs) that communicate via at least two different communication fabrics. Each PMU can behave as a supervisor for a number of supervisee PMUs in a particular domain. HPM addresses these needs for products that comprise a collection of dice with varying levels of power and thermal management capabilities and needs. HPM serves as a unified mechanism than can span collection of dice of varying capability and function, which together form a traditional system-on-chip (SoC). HPM provides a basis for managing power and thermals across a diverse set of dice.
    Type: Application
    Filed: September 12, 2024
    Publication date: March 6, 2025
    Inventors: Vivek GARG, Ankush VARMA, Krishnakanth SISTLA, Nikhil GUPTA, Nikethan Shivanand BALIGAR, Stephen WANG, Nilanjan PALIT, Timothy Yee-Kwong KAM, Adwait PURANDARE, Ujjwal GUPTA, Stanley CHEN, Dorit SHAPIRA, Shruthi VENUGOPAL, Suresh CHEMUDUPATI, Rupal PARIKH, Eric DEHAEMER, Pavithra SAMPATH, Phani Kumar KANDULA, Yogesh BANSAL, Dean MULLA, Michael TULANOWSKI, Stephen Paul HAAKE, Andrew HERDRICH, Ripan DAS, Nazar Syed HAIDER, Aman SEWANI
  • Patent number: 12093100
    Abstract: Hierarchical Power Management (HPM) architecture considers the limits of scaling on a power management controller, the autonomy at each die, and provides a unified view of the package to a platform. At a simplest level, HPM architecture has a supervisor and one or more supervisee power management units (PMUs) that communicate via at least two different communication fabrics. Each PMU can behave as a supervisor for a number of supervisee PMUs in a particular domain. HPM addresses these needs for products that comprise a collection of dice with varying levels of power and thermal management capabilities and needs. HPM serves as a unified mechanism than can span collection of dice of varying capability and function, which together form a traditional system-on-chip (SoC). HPM provides a basis for managing power and thermals across a diverse set of dice.
    Type: Grant
    Filed: September 26, 2020
    Date of Patent: September 17, 2024
    Assignee: Intel Corporation
    Inventors: Vivek Garg, Ankush Varma, Krishnakanth Sistla, Nikhil Gupta, Nikethan Shivanand Baligar, Stephen Wang, Nilanjan Palit, Timothy Yee-Kwong Kam, Adwait Purandare, Ujjwal Gupta, Stanley Chen, Dorit Shapira, Shruthi Venugopal, Suresh Chemudupati, Rupal Parikh, Eric Dehaemer, Pavithra Sampath, Phani Kumar Kandula, Yogesh Bansal, Dean Mulla, Michael Tulanowski, Stephen Paul Haake, Andrew Herdrich, Ripan Das, Nazar Syed Haider, Aman Sewani
  • Patent number: 11989074
    Abstract: An apparatus is provided, where the apparatus includes a plurality of components; a first sensing system to measure first power consumed by first one or more components of the plurality of components; a second sensing system to measure second power consumed by the apparatus; an analog-to-digital converter (ADC) to generate an identification (ID) that is representative of the second power consumed by the apparatus; and a controller to allocate power budget to one or more components of the plurality of components, based on the measurement of the first power and the ID.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: May 21, 2024
    Assignee: Intel Corporation
    Inventors: Dorit Shapira, Anand Enamandram, Daniel Cartagena, Krishnakanth Sistla, Jorge P. Rodriguez, Efraim Rotem, Nir Rosenzweig
  • Patent number: 11886918
    Abstract: An apparatus and method for intelligently scheduling threads across a plurality of logical processors. For example, one embodiment of a processor comprises: a plurality of cores; one or more peripheral component interconnects to couple the plurality of cores to memory, and in response to a core configuration command to deactivate a core of the plurality of cores, a region within the memory is updated with an indication of deactivation of the core.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: January 30, 2024
    Assignee: INTEL CORPORATION
    Inventors: Ankush Varma, Nikhil Gupta, Vasudevan Srinivasan, Krishnakanth Sistla, Nilanjan Palit, Abhinav Karhu, Eugene Gorbatov, Eliezer Weissmann
  • Publication number: 20230091205
    Abstract: Methods and apparatus relating to memory side prefetch architecture for improved memory bandwidth are described. In an embodiment, logic circuitry transmits a Direct Memory Controller Prefetch (DMCP) request to cause a prefetch of data from memory. A memory controller receives the DMCP request and issues a plurality of read operations to the memory in response to the DMCP request. Data read from the memory is stored in a storage structure in response to the plurality of read operations. Other embodiments are also disclosed and claimed.
    Type: Application
    Filed: September 20, 2021
    Publication date: March 23, 2023
    Applicant: Intel Corporation
    Inventors: Adrian Moga, Ugonna Echeruo, Eduard Roytman, Krishnakanth Sistla, Joseph Nuzman, Brinda Ganesh, Meenakshisundaram Chinthamani, Yen-Cheng Liu, Sai Prashanth Muralidhara, Vivek Kozhikkottu, Hanna Alam, Narasimha Sridhar Srirangam
  • Patent number: 11543878
    Abstract: A local power control arbiter is provided to interface with a global power control unit of a processing platform having a plurality of processing entities. The local power control arbiter controls a local processing unit of the processing platform. The local power arbiter has an interface to receive from the global power control unit, a local performance limit allocated to the local processing unit depending on a global power control evaluation and processing circuitry to determine any change to one or more processing conditions prevailing in the local processing unit on a timescale shorter than a duration for which the local performance limit is applied to the local processing unit by the global power control unit and to select a performance level for the local processing unit depending on both the local performance limit and the determined change, if any, to the prevailing processing conditions on the local processing unit.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: January 3, 2023
    Assignee: Intel Corporation
    Inventors: Efraim Rotem, Eliezer Weissmann, Eric Dehaemer, Alexander Gendler, Nadav Shulman, Krishnakanth Sistla, Nir Rosenzweig, Ankush Varma, Ariel Szapiro, Arye Albahari, Ido Melamed, Nir Misgav, Vivek Garg, Nimrod Angel, Adwait Purandare, Elkana Korem
  • Publication number: 20220244996
    Abstract: An apparatus and method for intelligently scheduling threads across a plurality of logical processors. For example, one embodiment of a processor comprises: a plurality of cores; one or more peripheral component interconnects to couple the plurality of cores to memory, and in response to a core configuration command to deactivate a core of the plurality of cores, a region within the memory is updated with an indication of deactivation of the core.
    Type: Application
    Filed: April 11, 2022
    Publication date: August 4, 2022
    Inventors: Ankush VARMA, Nikhil GUPTA, Vasudevan SRINIVASAN, Krishnakanth SISTLA, Nilanjan PALIT, Abhinav KARHU, Eugene GORBATOV, Eliezer WEISSMANN
  • Patent number: 11301298
    Abstract: An apparatus and method for intelligently scheduling threads across a plurality of logical processors.
    Type: Grant
    Filed: March 28, 2020
    Date of Patent: April 12, 2022
    Assignee: INTEL CORPORATION
    Inventors: Ankush Varma, Nikhil Gupta, Vasudevan Srinivasan, Krishnakanth Sistla, Nilanjan Palit, Abhinav Karhu, Eugene Gorbatov, Eliezer Weissmann
  • Publication number: 20220100247
    Abstract: Hierarchical Power Management (HPM) architecture considers the limits of scaling on a power management controller, the autonomy at each die, and provides a unified view of the package to a platform. At a simplest level, HPM architecture has a supervisor and one or more supervisee power management units (PMUs) that communicate via at least two different communication fabrics. Each PMU can behave as a supervisor for a number of supervisee PMUs in a particular domain. HPM addresses these needs for products that comprise a collection of dice with varying levels of power and thermal management capabilities and needs. HPM serves as a unified mechanism than can span collection of dice of varying capability and function, which together form a traditional system-on-chip (SoC). HPM provides a basis for managing power and thermals across a diverse set of dice.
    Type: Application
    Filed: September 26, 2020
    Publication date: March 31, 2022
    Applicant: Intel Corporation
    Inventors: Vivek Garg, Ankush Varma, Krishnakanth Sistla, Nikhil Gupta, Nikethan Shivanand Baligar, Stephen Wang, Nilanjan Palit, Timothy Kam, Adwait Purandare, Ujjwal Gupta, Stanley Chen, Dorit Shapira, Shruthi Venugopal, Suresh Chemudupati, Rupal Parikh, Eric Dehaemer, Pavithra Sampath, Phani Kumar Kandula, Yogesh Bansal, Dean Mulla, Michael Tulanowski, Stephen Haake, Andrew Herdrich, Ripan Das
  • Publication number: 20210318742
    Abstract: An apparatus is provided, where the apparatus includes a plurality of components; a first sensing system to measure first power consumed by first one or more components of the plurality of components; a second sensing system to measure second power consumed by the apparatus; an analog-to-digital converter (ADC) to generate an identification (ID) that is representative of the second power consumed by the apparatus; and a controller to allocate power budget to one or more components of the plurality of components, based on the measurement of the first power and the ID.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 14, 2021
    Applicant: Intel Corporation
    Inventors: Dorit Shapira, Anand Enamandram, Daniel Cartagena, Krishnakanth Sistla, Jorge P. Rodriguez, Efraim Rotem, Nir Rosenzweig
  • Patent number: 11144085
    Abstract: An apparatus system is provided which comprises: a first component and a second component; a first circuitry to assign the first component to a first group of components, and to assign the second component to a second group of components; and a second circuitry to assign a first maximum frequency limit to the first group of components, and to assign a second maximum frequency limit to the second group of components, wherein the first component and the second component are to respectively operate in accordance with the first maximum frequency limit and the second maximum frequency limit.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 12, 2021
    Assignee: Intel Corporation
    Inventors: Asma H. Al-Rawi, Federico Ardanaz, Jonathan M. Eastep, Dorit Shapira, Krishnakanth Sistla, Nikhil Gupta, Vasudevan Srinivasan, Chris MacNamara
  • Publication number: 20210303357
    Abstract: An apparatus and method for intelligently scheduling threads across a plurality of logical processors.
    Type: Application
    Filed: March 28, 2020
    Publication date: September 30, 2021
    Inventors: Ankush VARMA, Nikhil GUPTA, Vasudevan SRINIVASAN, Krishnakanth SISTLA, Nilanjan PALIT, Abhinav KARHU, Eugene GORBATOV, Eliezer WEISSMANN
  • Patent number: 11054877
    Abstract: An apparatus is provided, where the apparatus includes a plurality of components; a first sensing system to measure first power consumed by first one or more components of the plurality of components; a second sensing system to measure second power consumed by the apparatus; an analog-to-digital converter (ADC) to generate an identification (ID) that is representative of the second power consumed by the apparatus; and a controller to allocate power budget to one or more components of the plurality of components, based on the measurement of the first power and the ID.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: July 6, 2021
    Assignee: Intel Corporation
    Inventors: Dorit Shapira, Anand K. Enamandram, Daniel Cartagena, Krishnakanth Sistla, Jorge P. Rodriguez, Efraim Rotem, Nir Rosenzweig
  • Publication number: 20210018971
    Abstract: A local power control arbiter is provided to interface with a global power control unit of a processing platform having a plurality of processing entities. The local power control arbiter controls a local processing unit of the processing platform. The local power arbiter has an interface to receive from the global power control unit, a local performance limit allocated to the local processing unit depending on a global power control evaluation and processing circuitry to determine any change to one or more processing conditions prevailing in the local processing unit on a timescale shorter than a duration for which the local performance limit is applied to the local processing unit by the global power control unit and to select a performance level for the local processing unit depending on both the local performance limit and the determined change, if any, to the prevailing processing conditions on the local processing unit.
    Type: Application
    Filed: May 1, 2018
    Publication date: January 21, 2021
    Inventors: EFRAIM ROTEM, ELIEZER WEISSMANN, ERIC DEHAEMER, ALEXANDER GENDLER, NADAV SHULMAN, KRISHNAKANTH SISTLA, NIR ROSENZWEIG, ANKUSH VARMA, ARIEL SZAPIRO, ARYE ALBAHARI, IDO MELAMED, NIR MISGAV, VIVEK GARG, NIMROD ANGEL, ADWAIT PURANDARE, ELKANA KOREM
  • Patent number: 10663998
    Abstract: Various embodiments provide a voltage regulator circuit with automatic phase shedding. A control circuit may control first transitions of a power state of the voltage regulator based on an average current draw of the voltage regulator. The control circuit may further control second transitions of the power state of the voltage regulator based on a voltage droop of the output voltage and/or a peak current draw of the voltage regulator. The first transitions may be performed synchronously, and the second transitions may be performed asynchronously. Other embodiments may be described and claimed.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 26, 2020
    Assignee: Intel Corporation
    Inventors: Tamir Salus, Alexander Lyakhov, Alexander Gendler, Krishnakanth Sistla, Ankush Varma, Rachid Rayess, Nimrod Angel
  • Patent number: 10429912
    Abstract: A processor is described that includes a quick signal path from an input of the processor to logic circuitry within the processor. The input is to receive a fast throttle down signal. The logic circuitry is to throttle down a rate at which the processor issues instructions for execution in response to the fast throttle down signal. The quick signal path is to impose practicably minimal propagation delay of the fast throttle down signal within the processor.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: October 1, 2019
    Assignee: Intel Corporation
    Inventors: Krishnakanth Sistla, Martin Rowland, Efraim Rotem, Brian J. Griffith, Ankush Varma, Anupama Suryanarayanan
  • Publication number: 20190155729
    Abstract: A method and apparatus for improving snooping performance is disclosed. In one embodiment, one or more content addressable matches are used to determine where and when an address conflict occurs. Depending upon the timing, a read request or a snoop request may be set for retry. In another embodiment, an age order matrix may be used to determine when several core snoop requests may be issued during a same time period, so that the snoops may be processed during this time period.
    Type: Application
    Filed: July 24, 2018
    Publication date: May 23, 2019
    Inventors: Krishnakanth Sistla, Yen-Cheng Liu, Zhong-Ning Cai
  • Publication number: 20190102227
    Abstract: In an embodiment, a processor includes a plurality of processing engines (PEs) to execute threads, and a guide unit. The guide unit is to: monitor execution characteristics of the plurality of PEs and the threads; generate a plurality of PE rankings, each PE ranking including the plurality of PEs in a particular order; and store the plurality of PE rankings in a memory to be provided to a scheduler, the scheduler to schedule the threads on the plurality of PEs using the plurality of PE rankings. Other embodiments are described and claimed.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 4, 2019
    Inventors: Avinash Ananthakrishnan, Vijay Dhanraj, Russell Fenger, Vivek Garg, Eugene Gorbatov, Stephen Gunter, Monica Gupta, Efraim Rotem, Krishnakanth Sistla, Guy Therien, Ankush Verma, Eliezer Weissmann
  • Publication number: 20190041951
    Abstract: An apparatus is provided, where the apparatus includes a plurality of components; a first sensing system to measure first power consumed by first one or more components of the plurality of components; a second sensing system to measure second power consumed by the apparatus; an analog-to-digital converter (ADC) to generate an identification (ID) that is representative of the second power consumed by the apparatus; and a controller to allocate power budget to one or more components of the plurality of components, based on the measurement of the first power and the ID.
    Type: Application
    Filed: June 19, 2018
    Publication date: February 7, 2019
    Inventors: Dorit Shapira, Anand K. Enamandram, Daniel Cartagena, Krishnakanth Sistla, Jorge P. Rodriguez, Efraim Rotem, Nir Rosenzweig
  • Publication number: 20180373287
    Abstract: An apparatus system is provided which comprises: a first component and a second component; a first circuitry to assign the first component to a first group of components, and to assign the second component to a second group of components; and a second circuitry to assign a first maximum frequency limit to the first group of components, and to assign a second maximum frequency limit to the second group of components, wherein the first component and the second component are to respectively operate in accordance with the first maximum frequency limit and the second maximum frequency limit.
    Type: Application
    Filed: June 23, 2017
    Publication date: December 27, 2018
    Inventors: Asma H. Al-Rawi, Federico Ardanaz, Jonathan M. Eastep, Dorit Shapira, Krishnakanth Sistla, Nikhil Gupta, Vasudevan Srinivasan, Chris MacNamara