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).
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Publication number: 20250076954Abstract: 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: ApplicationFiled: September 12, 2024Publication date: March 6, 2025Inventors: 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
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Patent number: 12093100Abstract: 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: GrantFiled: September 26, 2020Date of Patent: September 17, 2024Assignee: Intel CorporationInventors: 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
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Patent number: 11989074Abstract: 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: GrantFiled: June 22, 2021Date of Patent: May 21, 2024Assignee: Intel CorporationInventors: Dorit Shapira, Anand Enamandram, Daniel Cartagena, Krishnakanth Sistla, Jorge P. Rodriguez, Efraim Rotem, Nir Rosenzweig
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Patent number: 11886918Abstract: 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: GrantFiled: April 11, 2022Date of Patent: January 30, 2024Assignee: INTEL CORPORATIONInventors: Ankush Varma, Nikhil Gupta, Vasudevan Srinivasan, Krishnakanth Sistla, Nilanjan Palit, Abhinav Karhu, Eugene Gorbatov, Eliezer Weissmann
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Publication number: 20230091205Abstract: 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: ApplicationFiled: September 20, 2021Publication date: March 23, 2023Applicant: Intel CorporationInventors: 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
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Patent number: 11543878Abstract: 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: GrantFiled: May 1, 2018Date of Patent: January 3, 2023Assignee: Intel CorporationInventors: 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
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Publication number: 20220244996Abstract: 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: ApplicationFiled: April 11, 2022Publication date: August 4, 2022Inventors: Ankush VARMA, Nikhil GUPTA, Vasudevan SRINIVASAN, Krishnakanth SISTLA, Nilanjan PALIT, Abhinav KARHU, Eugene GORBATOV, Eliezer WEISSMANN
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Patent number: 11301298Abstract: An apparatus and method for intelligently scheduling threads across a plurality of logical processors.Type: GrantFiled: March 28, 2020Date of Patent: April 12, 2022Assignee: INTEL CORPORATIONInventors: Ankush Varma, Nikhil Gupta, Vasudevan Srinivasan, Krishnakanth Sistla, Nilanjan Palit, Abhinav Karhu, Eugene Gorbatov, Eliezer Weissmann
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Publication number: 20220100247Abstract: 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: ApplicationFiled: September 26, 2020Publication date: March 31, 2022Applicant: Intel CorporationInventors: 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
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Publication number: 20210318742Abstract: 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: ApplicationFiled: June 22, 2021Publication date: October 14, 2021Applicant: Intel CorporationInventors: Dorit Shapira, Anand Enamandram, Daniel Cartagena, Krishnakanth Sistla, Jorge P. Rodriguez, Efraim Rotem, Nir Rosenzweig
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Patent number: 11144085Abstract: 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: GrantFiled: June 23, 2017Date of Patent: October 12, 2021Assignee: Intel CorporationInventors: Asma H. Al-Rawi, Federico Ardanaz, Jonathan M. Eastep, Dorit Shapira, Krishnakanth Sistla, Nikhil Gupta, Vasudevan Srinivasan, Chris MacNamara
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Publication number: 20210303357Abstract: An apparatus and method for intelligently scheduling threads across a plurality of logical processors.Type: ApplicationFiled: March 28, 2020Publication date: September 30, 2021Inventors: Ankush VARMA, Nikhil GUPTA, Vasudevan SRINIVASAN, Krishnakanth SISTLA, Nilanjan PALIT, Abhinav KARHU, Eugene GORBATOV, Eliezer WEISSMANN
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Patent number: 11054877Abstract: 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: GrantFiled: June 19, 2018Date of Patent: July 6, 2021Assignee: Intel CorporationInventors: Dorit Shapira, Anand K. Enamandram, Daniel Cartagena, Krishnakanth Sistla, Jorge P. Rodriguez, Efraim Rotem, Nir Rosenzweig
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Publication number: 20210018971Abstract: 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: ApplicationFiled: May 1, 2018Publication date: January 21, 2021Inventors: 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
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Patent number: 10663998Abstract: 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: GrantFiled: March 29, 2019Date of Patent: May 26, 2020Assignee: Intel CorporationInventors: Tamir Salus, Alexander Lyakhov, Alexander Gendler, Krishnakanth Sistla, Ankush Varma, Rachid Rayess, Nimrod Angel
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Patent number: 10429912Abstract: 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: GrantFiled: December 18, 2017Date of Patent: October 1, 2019Assignee: Intel CorporationInventors: Krishnakanth Sistla, Martin Rowland, Efraim Rotem, Brian J. Griffith, Ankush Varma, Anupama Suryanarayanan
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Publication number: 20190155729Abstract: 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: ApplicationFiled: July 24, 2018Publication date: May 23, 2019Inventors: Krishnakanth Sistla, Yen-Cheng Liu, Zhong-Ning Cai
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Publication number: 20190102227Abstract: 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: ApplicationFiled: September 29, 2017Publication date: April 4, 2019Inventors: Avinash Ananthakrishnan, Vijay Dhanraj, Russell Fenger, Vivek Garg, Eugene Gorbatov, Stephen Gunter, Monica Gupta, Efraim Rotem, Krishnakanth Sistla, Guy Therien, Ankush Verma, Eliezer Weissmann
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Publication number: 20190041951Abstract: 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: ApplicationFiled: June 19, 2018Publication date: February 7, 2019Inventors: Dorit Shapira, Anand K. Enamandram, Daniel Cartagena, Krishnakanth Sistla, Jorge P. Rodriguez, Efraim Rotem, Nir Rosenzweig
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Publication number: 20180373287Abstract: 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: ApplicationFiled: June 23, 2017Publication date: December 27, 2018Inventors: Asma H. Al-Rawi, Federico Ardanaz, Jonathan M. Eastep, Dorit Shapira, Krishnakanth Sistla, Nikhil Gupta, Vasudevan Srinivasan, Chris MacNamara