Patents by Inventor Krishnakanth V. Sistla

Krishnakanth V. 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).

  • Patent number: 11899615
    Abstract: Methods and apparatuses relating to hardware processors with multiple interconnected dies are described. In one embodiment, a hardware processor includes a plurality of physically separate dies, and an interconnect to electrically couple the plurality of physically separate dies together. In another embodiment, a method to create a hardware processor includes providing a plurality of physically separate dies, and electrically coupling the plurality of physically separate dies together with an interconnect.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: February 13, 2024
    Assignee: Intel Corporation
    Inventors: Nevine Nassif, Yen-Cheng Liu, Krishnakanth V. Sistla, Gerald Pasdast, Siva Soumya Eachempati, Tejpal Singh, Ankush Varma, Mahesh K. Kumashikar, Srikanth Nimmagadda, Carleton L. Molnar, Vedaraman Geetha, Jeffrey D. Chamberlain, William R. Halleck, George Z Chrysos, John R. Ayers, Dheeraj R. Subbareddy
  • Publication number: 20230359263
    Abstract: Apparatuses, methods and storage medium associated with current control for a multicore processor are disclosed herein. In embodiments, a multicore processor may include a plurality of analog current comparators, each analog current comparator to measure current utilization by a corresponding one of the cores of the multicore processor. The multicore processor may include one or more processors, devices, and/or circuitry to cause the cores to individually throttle based on measurements from the corresponding analog current comparators. In some embodiments, a memory device of the multicore processor may store instructions executable to operate a plurality power management agents to determine whether to send throttle requests based on a plurality of histories of the current measurements of the cores, respectively.
    Type: Application
    Filed: July 17, 2023
    Publication date: November 9, 2023
    Inventors: Alexander Gendler, Efraim Rotem, Nir Rosenzweig, Krishnakanth V. Sistla, Ashish V. Choubal, Ankush Varma
  • Publication number: 20230315143
    Abstract: A processing device includes a plurality of processing cores, a control register, associated with a first processing core of the plurality of processing cores, to store a first base clock frequency value at which the first processing core is to run, and a power management circuit to receive a base clock frequency request comprising a second base clock frequency value, store the second base clock frequency value in the control register to cause the first processing core to run at the second base clock frequency value, and expose the second base clock frequency value on a hardware interface associated with the power management circuit.
    Type: Application
    Filed: June 5, 2023
    Publication date: October 5, 2023
    Inventors: Vasudevan Srinivasan, Krishnakanth V. Sistla, Corey D. Gough, Ian M. Steiner, Nikhil Gupta, Vivek Garg, Ankush Varma, Sujal A. Vora, David P. Lerner, Joseph M. Sullivan, Nagasubramanian Gurumoorthy, William J. Bowhill, Venkatesh Ramamurthy, Chris MacNamara, John J. Browne, Ripan Das
  • Patent number: 11762449
    Abstract: Apparatuses, methods and storage medium associated with current control for a multicore processor are disclosed herein. In embodiments, a multicore processor may include a plurality of analog current comparators, each analog current comparator to measure current utilization by a corresponding one of the cores of the multicore processor. The multicore processor may include one or more processors, devices, and/or circuitry to cause the cores to individually throttle based on measurements from the corresponding analog current comparators. In some embodiments, a memory device of the multicore processor may store instructions executable to operate a plurality power management agents to determine whether to send throttle requests based on a plurality of histories of the current measurements of the cores, respectively.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: September 19, 2023
    Assignee: Intel Corporation
    Inventors: Alexander Gendler, Efraim Rotem, Nir Rosenzweig, Krishnakanth V. Sistla, Ashish V. Choubal, Ankush Varma
  • Publication number: 20230251702
    Abstract: A method and apparatus to monitor architecture events is disclosed. The architecture events are linked together via a push bus mechanism with each architectural event having a designated time slot. There is at least one branch of the push bus in each core. Each branch of the push bus may monitor one core with all the architectural events. All the data collected from the events by the push bus is then sent to a power control unit.
    Type: Application
    Filed: February 3, 2023
    Publication date: August 10, 2023
    Applicant: Tahoe Research, Ltd.
    Inventors: Yen-Cheng LIU, P. Keong OR, Krishnakanth V. SISTLA, Ganapati SRINIVASA
  • Patent number: 11703906
    Abstract: A processing device includes a plurality of processing cores, a control register, associated with a first processing core of the plurality of processing cores, to store a first base clock frequency value at which the first processing core is to run, and a power management circuit to receive a base clock frequency request comprising a second base clock frequency value, store the second base clock frequency value in the control register to cause the first processing core to run at the second base clock frequency value, and expose the second base clock frequency value on a hardware interface associated with the power management circuit.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: July 18, 2023
    Assignee: Intel Corporation
    Inventors: Vasudevan Srinivasan, Krishnakanth V. Sistla, Corey D. Gough, Ian M. Steiner, Nikhil Gupta, Vivek Garg, Ankush Varma, Sujal A. Vora, David P. Lerner, Joseph M. Sullivan, Nagasubramanian Gurumoorthy, William J. Bowhill, Venkatesh Ramamurthy, Chris MacNamara, John J. Browne, Ripan Das
  • Publication number: 20230169032
    Abstract: Methods and apparatuses relating to hardware processors with multiple interconnected dies are described. In one embodiment, a hardware processor includes a plurality of physically separate dies, and an interconnect to electrically couple the plurality of physically separate dies together. In another embodiment, a method to create a hardware processor includes providing a plurality of physically separate dies, and electrically coupling the plurality of physically separate dies together with an interconnect.
    Type: Application
    Filed: January 27, 2023
    Publication date: June 1, 2023
    Inventors: NEVINE NASSIF, YEN-CHENG LIU, KRISHNAKANTH V. SISTLA, GERALD PASDAST, SIVA SOUMYA EACHEMPATI, TEJPAL SINGH, ANKUSH VARMA, MAHESH K. KUMASHIKAR, SRIKANTH NIMMAGADDA, CARLETON L. MOLNAR, VEDARAMAN GEETHA, JEFFREY D. CHAMBERLAIN, WILLIAM R. HALLECK, GEORGE Z. CHRYSOS, JOHN R. AYERS, DHEERAJ R. SUBBAREDDY
  • Patent number: 11586579
    Abstract: Methods and apparatuses relating to hardware processors with multiple interconnected dies are described. In one embodiment, a hardware processor includes a plurality of physically separate dies, and an interconnect to electrically couple the plurality of physically separate dies together. In another embodiment, a method to create a hardware processor includes providing a plurality of physically separate dies, and electrically coupling the plurality of physically separate dies together with an interconnect.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: February 21, 2023
    Assignee: Intel Corporation
    Inventors: Nevine Nassif, Yen-Cheng Liu, Krishnakanth V. Sistla, Gerald Pasdast, Siva Soumya Eachempati, Tejpal Singh, Ankush Varma, Mahesh K. Kumashikar, Srikanth Nimmagadda, Carleton L. Molnar, Vedaraman Geetha, Jeffrey D. Chamberlain, William R. Halleck, George Z. Chrysos, John R. Ayers, Dheeraj R. Subbareddy
  • Patent number: 11567896
    Abstract: In one embodiment, a processor includes a plurality of cores each including a first storage to store a physical identifier for the core and a second storage to store a logical identifier associated with the core; a plurality of thermal sensors to measure a temperature at a corresponding location of the processor; and a power controller including a dynamic core identifier logic to dynamically remap a first logical identifier associated with a first core to associate the first logical identifier with a second core, based at least in part on a temperature associated with the first core, the dynamic remapping to cause a first thread to be migrated from the first core to the second core transparently to an operating system. Other embodiments are described and claimed.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: January 31, 2023
    Assignee: Intel Corporation
    Inventors: Ankush Varma, Krishnakanth V. Sistla, Guy G. Sotomayor, Andrew D. Henroid, Robert E. Gough, Tod F. Schiff
  • Patent number: 11543868
    Abstract: In an embodiment, a processor includes at least one core and power management logic. The power management logic is to receive temperature data from a plurality of dies within a package that includes the processor, and determine a smallest temperature control margin of a plurality of temperature control margins. Each temperature control margin is to be determined based on a respective thermal control temperature associated with the die and also based on respective temperature data associated with the die. The power management logic is also to generate a thermal report that is to include the smallest temperature control margin, and to store the thermal report. Other embodiments are described and claimed.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: January 3, 2023
    Assignee: Intel Corporation
    Inventors: Tessil Thomas, Robin A. Steinbrecher, Sandeep Ahuja, Michael Berktold, Timothy Y. Kam, Howard Chin, Phani Kumar Kandula, Krishnakanth V. Sistla
  • Patent number: 11372464
    Abstract: An apparatus is provided which comprises: a controller to allocate, to a component, a resource budget selected from a plurality of quantization levels; and a circuitry to adaptively update the plurality of quantization levels.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 28, 2022
    Assignee: Intel Corporation
    Inventors: Fuat Keceli, Frederico Ardanaz, Jonathan M. Eastep, Ankush Varma, Krishnakanth V. Sistla
  • Publication number: 20220197361
    Abstract: Apparatuses, methods and storage medium associated with current control for a multicore processor are disclosed herein. In embodiments, a multicore processor may include a plurality of analog current comparators, each analog current comparator to measure current utilization by a corresponding one of the cores of the multicore processor. The multicore processor may include one or more processors, devices, and/or circuitry to cause the cores to individually throttle based on measurements from the corresponding analog current comparators. In some embodiments, a memory device of the multicore processor may store instructions executable to operate a plurality power management agents to determine whether to send throttle requests based on a plurality of histories of the current measurements of the cores, respectively.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 23, 2022
    Inventors: Alexander Gendler, Efraim Rotem, Nir Rosenzweig, Krishnakanth V. Sistla, Ashish V. Choubal, Ankush Varma
  • Publication number: 20220129031
    Abstract: A processing device includes a plurality of processing cores, a control register, associated with a first processing core of the plurality of processing cores, to store a first base clock frequency value at which the first processing core is to run, and a power management circuit to receive a base clock frequency request comprising a second base clock frequency value, store the second base clock frequency value in the control register to cause the first processing core to run at the second base clock frequency value, and expose the second base clock frequency value on a hardware interface associated with the power management circuit.
    Type: Application
    Filed: November 5, 2021
    Publication date: April 28, 2022
    Inventors: Vasudevan Srinivasan, Krishnakanth V. Sistla, Corey D. Gough, Ian M. Steiner, Nikhil Gupta, Vivek Garg, Ankush Varma, Sujal A. Vora, David P. Lerner, Joseph M. Sullivan, Nagasubramanian Gurumoorthy, William J. Bowhill, Venkatesh Ramamurthy, Chris MacNamara, John J. Browne, Ripan Das
  • Patent number: 11294852
    Abstract: Methods and apparatuses relating to hardware processors with multiple interconnected dies are described. In one embodiment, a hardware processor includes a plurality of physically separate dies, and an interconnect to electrically couple the plurality of physically separate dies together. In another embodiment, a method to create a hardware processor includes providing a plurality of physically separate dies, and electrically coupling the plurality of physically separate dies together with an interconnect.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: April 5, 2022
    Assignee: Intel Corporation
    Inventors: Nevine Nassif, Yen-Cheng Liu, Krishnakanth V. Sistla, Gerald Pasdast, Siva Soumya Eachempati, Tejpal Singh, Ankush Varma, Mahesh K. Kumashikar, Srikanth Nimmagadda, Carleton L. Molnar, Vedaraman Geetha, Jeffrey D. Chamberlain, William R. Halleck, George Z. Chrysos, John R. Ayers, Dheeraj R. Subbareddy
  • Patent number: 11294749
    Abstract: Examples include techniques to collect crash data for a computing system following a catastrophic error. Examples include a management controller gathering error information from components of a computing system that includes a central processing unit (CPU) coupled with one or more companion dice following the catastrophic error. The management controller to gather the error information via a communication link coupled between the management controller, the CPU and the one or more companion dice.
    Type: Grant
    Filed: December 30, 2017
    Date of Patent: April 5, 2022
    Assignee: Intel Corporation
    Inventors: Ramamurthy Krithivas, Anand K. Enamandram, Eswaramoorthi Nallusamy, Russell J. Wunderlich, Krishnakanth V. Sistla
  • Patent number: 11256657
    Abstract: In one embodiment, an apparatus includes an interconnect to couple a plurality of processing circuits. The interconnect may include a pipe stage circuit coupled between a first processing circuit and a second processing circuit. This pipe stage circuit may include: a pipe stage component having a first input to receive a signal via the interconnect and a first output to output the signal; and a selection circuit having a first input to receive the signal from the first output of the pipe stage component and a second input to receive the signal via a bypass path, where the selection circuit is dynamically controllable to output the signal received from the first output of the pipe stage component or the signal received via the bypass path. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: February 22, 2022
    Assignee: Intel Corporation
    Inventors: Tejpal Singh, Yedidya Hilewitz, Ankush Varma, Yen-Cheng Liu, Krishnakanth V. Sistla, Jeffrey Chamberlain
  • Publication number: 20220050805
    Abstract: Methods and apparatuses relating to hardware processors with multiple interconnected dies are described. In one embodiment, a hardware processor includes a plurality of physically separate dies, and an interconnect to electrically couple the plurality of physically separate dies together. In another embodiment, a method to create a hardware processor includes providing a plurality of physically separate dies, and electrically coupling the plurality of physically separate dies together with an interconnect.
    Type: Application
    Filed: October 28, 2021
    Publication date: February 17, 2022
    Inventors: NEVINE NASSIF, YEN-CHENG LIU, KRISHNAKANTH V. SISTLA, GERALD PASDAST, SIVA SOUMYA EACHEMPATI, TEJPAL SINGH, ANKUSH VARMA, MAHESH K. KUMASHIKAR, SRIKANTH NIMMAGADDA, CARLETON L. MOLNAR, VEDARAMAN GEETHA, JEFFREY D. CHAMBERLAIN, WILLIAM R. HALLECK, GEORGE Z. CHRYSOS, JOHN R. AYERS, DHEERAJ R. SUBBAREDDY
  • Patent number: 11237615
    Abstract: Apparatuses, methods and storage medium associated with current control for a multicore processor are disclosed herein. In embodiments, a multicore processor may include a plurality of analog current comparators, each analog current comparator to measure current utilization by a corresponding one of the cores of the multicore processor. The multicore processor may include one or more processors, devices, and/or circuitry to cause the cores to individually throttle based on measurements from the corresponding analog current comparators. In some embodiments, a memory device of the multicore processor may store instructions executable to operate a plurality power management agents to determine whether to send throttle requests based on a plurality of histories of the current measurements of the cores, respectively.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: February 1, 2022
    Assignee: Intel Corporation
    Inventors: Alexander Gendler, Efraim Rotem, Nir Rosenzweig, Krishnakanth V. Sistla, Ashish V. Choubal, Ankush Varma
  • Patent number: 11221857
    Abstract: The present invention relates to a platform power management scheme. In some embodiments, a platform provides a relative performance scale using one or more parameters to be requested by an OSPM system.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: January 11, 2022
    Assignee: Intel Corporation
    Inventors: Guy M. Therien, Paul S. Diefenbaugh, Anil Aggarwal, Andrew D. Henroid, Jeremy J. Shrall, Efraim Rotem, Krishnakanth V. Sistla, Eliezer Weissmann
  • Patent number: 11194373
    Abstract: Various embodiments comprise prioritizing frequency allocations in thermally- or power-constrained computing devices. Computer elements may be assigned ‘weights’ based on their priorities. The computer elements with higher weights may receive higher frequency allocations to assure they receive priority in processing more quickly. The computer elements with lower weights may receive lower frequency allocations and suffer a slowdown in their processing. Elements with the same weight may be grouped together for the purpose of frequency allocation.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: December 7, 2021
    Assignee: Intel Corporation
    Inventors: Asma Al-Rawi, Federico Ardanaz, Jonathan M. Eastep, Nikhil Gupta, Ankush Varma, Krishnakanth V. Sistla, Ian M. Steiner