Patents by Inventor Mahesh A. Iyer
Mahesh A. Iyer 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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Patent number: 12216150Abstract: A method includes mapping an aging measurement circuit (AMC) into the core fabric of an FPGA and operating the AMC for a select time period. During the select period of time, the AMC counts transition of a signal propagating through the AMC. Timing information based on the counted transitions is stored in a timing model in a memory. The timing information represents an aging characteristic of the core fabric at a time that the AMC is operated. An EDA toolchain uses the timing information in the timing model to generate a timing guard-band for the configurable IC die. The AMC is removed from the core fabric and another circuit device is mapped and fitted into the core fabric using the generated timing guard-band models. The circuit device is operated in the configurable IC die based on the timing guard-band models.Type: GrantFiled: December 21, 2022Date of Patent: February 4, 2025Assignee: Altera CorporationInventors: Dheeraj Subbareddy, Ankireddy Nalamalpu, Mahesh A. Iyer, Dhananjay Raghavan
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Patent number: 12003238Abstract: An integrated circuit device may include a programmable fabric die having programmable logic fabric and configuration memory that may configure the programmable logic fabric. The integrated circuit device may also include a base die that may provide fabric support circuitry, including memory and/or communication interfaces as well as compute elements that may also be application-specific. The memory in the base die may be directly accessed by the programmable fabric die using a low-latency, high capacity, and high bandwidth interface.Type: GrantFiled: August 20, 2021Date of Patent: June 4, 2024Assignee: Intel CorporationInventors: Scott Jeremy Weber, Aravind Raghavendra Dasu, Mahesh A. Iyer, Patrick Koeberl
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Publication number: 20240020449Abstract: Systems or methods of the present disclosure may provide a library including multiple macros that may be pre-compiled prior to implementation of the design. For example, a design may be mapped to one or more macros in the library, and the one or more macros may be placed into and routed between a portion of a region, one region, one or more regions of the integrated circuit device to implement the design. Since the macros may be pre-compiled, compilation time experienced by the designer may correspond to the placement and routing of the one or more macros, which may be less than compilation time for fine-grained operations. The pre-compiled logic within the macros may be set using a lookup table mask to set and/or adjust a functionality of the macro. Additionally or alternatively, the place and route operation may be performed at finer granularities to reduce bottle necks.Type: ApplicationFiled: September 27, 2023Publication date: January 18, 2024Inventors: Byron Sinclair, Deshanand P. Singh, Gregg William Baeckler, Mahesh A. Iyer, Michael Kinsner, Chengping Liang, Victor Tzi-on Zhang
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Publication number: 20230333826Abstract: Systems or methods of the present disclosure may provide a library including multiple regional bits streams that may be pre-generated by a manufacturer and/or custom generated by a designer that may be used to implement a design onto an integrated circuit device. The design may be decomposed into one or more regional bitstreams and stitched to form a larger combined bitstream to be implemented as coarse-grained operations on the integrated circuit device, thereby decreasing compilation time experienced by the designer. The combined bitstreams may be loaded into all or a portion of the integrated circuit device to realize the design. Additionally or alternatively, the integrated circuit device may include a hardened networks-on-chip to improve data routing within the combined bitstream.Type: ApplicationFiled: June 20, 2023Publication date: October 19, 2023Inventors: Michael Kinsner, Byron Sinclair, Deshanand P. Singh, Scott Jeremy Weber, Mahesh A. Iyer, Chengping Liang, Victor Tzi-on Zhang, Gabriel Quan
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Publication number: 20230237230Abstract: Systems or methods of the present disclosure may provide a library including multiple personas that may be pre-generated by a manufacturer and/or custom generated by a designer that may be used to implement a design onto an integrated circuit device. The design may be decomposed into one or more personas to be implemented as coarse-grained operations on the integrated circuit device, thereby decreasing compilation time experienced by the designer. The personas may be loaded into one or more regions of the integrated circuit device to realize the design. That is, the design may be realized by one persona may be implemented across multiple regions, one region may be configured by multiple personas, one persona configuring one region, or any combination thereof. Additionally or alternatively, the integrated circuit device may include networks-on-chip to improve data routing between the regions.Type: ApplicationFiled: March 28, 2023Publication date: July 27, 2023Inventors: Michael Kinsner, Byron Sinclair, Deshanand P. Singh, Scott Jeremy Weber, Anandh Venkateswaran, Mahesh A. Iyer
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Publication number: 20230237231Abstract: Systems or methods of the present disclosure may provide an electronic device that includes memory storing instructions; and a processor, that when executing the instructions, is to receive a design for a programmable fabric of an integrated circuit device. The instructions are also to cause the processor to cause compilation of the design into a configuration during a compilation window. The instructions further are to cause the processor to determine at least some routing for the configuration outside of the compilation window.Type: ApplicationFiled: March 28, 2023Publication date: July 27, 2023Inventors: Byron Sinclair, Michael Kinsner, Gabriel Quan, Victor Tzi-on Zhang, Mahesh A. Iyer, Chengping Liang, Deshanand P. Singh
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Publication number: 20230222275Abstract: A method is provided for processing code for a circuit design for an integrated circuit using a computer system. The method includes receiving at least a portion of the code for the circuit design for the integrated circuit, wherein the portion of the code comprises an error or has incomplete constraints, making an assumption about the error and the missing constraints using a computer aid design tool, and generating a revised circuit design for the integrated circuit with the error corrected and any missing constraints added based on the assumption and based on the code using the computer aided design tool and a library of components for circuit designs.Type: ApplicationFiled: March 16, 2023Publication date: July 13, 2023Applicant: Intel CorporationInventors: Gregg Baeckler, Mahesh A. Iyer, Martin Langhammer
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Publication number: 20230129176Abstract: A method includes mapping an aging measurement circuit (AMC) into the core fabric of an FPGA and operating the AMC for a select time period. During the select period of time, the AMC counts transition of a signal propagating through the AMC. Timing information based on the counted transitions is stored in a timing model in a memory. The timing information represents an aging characteristic of the core fabric at a time that the AMC is operated. An EDA toolchain uses the timing information in the timing model to generate a timing guard-band for the configurable IC die. The AMC is removed from the core fabric and another circuit device is mapped and fitted into the core fabric using the generated timing guard-band models. The circuit device is operated in the configurable IC die based on the timing guard-band models.Type: ApplicationFiled: December 21, 2022Publication date: April 27, 2023Applicant: Intel CorporationInventors: Dheeraj Subbareddy, Ankireddy Nalamalpu, Mahesh A. Iyer, Dhananjay Raghavan
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Patent number: 11609262Abstract: An integrated circuit die includes a core fabric configurable to include an aging measurement circuit and a device manager coupled to the core fabric to operate the aging measurement circuit for a select period of time. The aging measurement circuit includes a counter to count transitions of a signal propagating through the aging measurement circuit during the select period of time when the aging measurement circuit is operating. The transitions of the signal counted by the counter during the select period of time are a measure of an aging characteristic of the integrated circuit die.Type: GrantFiled: December 25, 2018Date of Patent: March 21, 2023Assignee: Intel CorporationInventors: Dheeraj Subbareddy, Ankireddy Nalamalpu, Mahesh A. Iyer, Dhananjay Raghavan
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Patent number: 11574101Abstract: Systems and methods are provided for using an integrated circuit design tool to analyze timing requirements of a circuit design for an integrated circuit. A slack is calculated for a timing path in the circuit design that fails to satisfy a timing constraint. The slack is decomposed into multiple categories of delays in the timing path. The categories of delays for the slack may include intrinsic margin, clock skew, logic delay, and fabric interconnect delay. The logic delay may include local interconnect delay and logic circuit delay. The fabric interconnect delay may include delays in interconnect elements that are used to make connections between larger blocks of the logic circuits. Different optimization strategies are provided to solve the timing constraint failure for each of the different categories of slack breakdown. Slack profiles of the entire design in each of the four categories of slack are also provided.Type: GrantFiled: March 25, 2021Date of Patent: February 7, 2023Assignee: Intel CorporationInventors: Scott Whitty, Mahesh A. Iyer
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Publication number: 20230027064Abstract: Systems and methods of the present disclosure provide techniques for reducing power consumption of a large combinational circuit using register insertion. In particular, a large circuit may be analyzed to determine the amount of signal switching at various logical points (e.g., stages in the computation) of the circuit. A clock sequence with many pulses in the period of a clock that runs the large combinatorial circuit may be generated. To balance the amount of signal switching at various logical points in the circuit, registers may be inserted at certain points in the large circuit with the clock pulses of the clock sequence assigned to the registers that may not have a constant frequency or may be phase shifted versions of the main clock.Type: ApplicationFiled: September 30, 2022Publication date: January 26, 2023Inventors: Martin Langhammer, Gregg William Baeckler, Sergey Vladimirovich Gribok, Mahesh A. Iyer
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Publication number: 20230024515Abstract: A programmable logic device may include a first layer formed using backside metallization on a back plane of the programmable logic device and a second fabric routing circuitry to route second data within the programmable fabric. The first layer may include first fabric routing circuitry to route first data within a programmable fabric of the programmable logic device, and clock routing circuitry to route clock signals within the programmable fabric.Type: ApplicationFiled: September 30, 2022Publication date: January 26, 2023Inventors: Atul Maheshwari, Mahesh K. Kumashikar, Ankireddy Nalamalpu, MD Altaf Hossain, Mahesh A. Iyer
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Publication number: 20230018414Abstract: The present disclosure describes techniques for incorporating pipelined DSP blocks or other types of embedded functions into a logic circuit with a slower clock rate without any clock crossing complexities, and at the same time managing the power consumption of the more complex design that results from it. The techniques include generating a faster clock or several faster clocks that may have a faster clock rate than the clock used by the logic circuit and that may be used as clock input to the embedded pipelined DSP blocks. In addition, the present disclosure describes techniques for generating, improving, and using the faster clock to sample the output of a logic circuit using pulses of generated faster clock, which may allow to increase the clock frequency of the circuit to an optimal level, while maintaining functional correctness.Type: ApplicationFiled: September 29, 2022Publication date: January 19, 2023Inventors: Martin Langhammer, Gregg William Baeckler, Sergey Vladimirovich Gribok, Mahesh A. Iyer
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Publication number: 20220335189Abstract: Systems or methods of the present disclosure may provide a compilation design method that uses cloud computing resources and/or distributed computing resources to compile initial user designs. The initial user design for the programmable logic device may be partitioned into multiple designs for compilation based on periphery logic and core fabric logic. The compilation design method implements partition-level time budgeting and constraint generation using full device timing analysis. The final placed and routed netlist and bitstream SOF is generated by merging the placed and routed netlist and bitstream SOF of individual partition designs.Type: ApplicationFiled: July 1, 2022Publication date: October 20, 2022Inventors: Yi Peng, Scott Jeremy Weber, Mahesh A. Iyer
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Publication number: 20220215147Abstract: An integrated circuit system includes a temperature sensor circuit that generates an output indicative of a temperature in an integrated circuit. The integrated circuit system also includes a temperature management controller circuit that compares the temperature indicated by the output of the temperature sensor circuit to a temperature threshold. The integrated circuit system further includes temperature reduction circuitry and/or design compilation techniques and partial or full reconfiguration that controls the temperature in the integrated circuit system. The temperature management controller circuit causes the temperature reduction circuitry to reduce the temperature in response to the temperature indicated by the output of the temperature sensor circuit exceeding the temperature threshold. The temperature sensor circuit, the temperature management controller circuit, and the temperature reduction circuitry may be implemented by soft logic circuits, hard logic circuits, or any combination thereof.Type: ApplicationFiled: March 24, 2022Publication date: July 7, 2022Applicant: Intel CorporationInventors: Teik Wah Lim, Rajiv Mongia, Archanna Srinivasan, Mahesh A. Iyer
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Patent number: 11368158Abstract: A method of handling integrated circuit dies with defects is provided. After forming a plurality of dies on one or more silicon wafers, test equipment may be used to identify defects on the dies and to create corresponding defect maps. The defect maps can be combined to form an aggregate defect map. Circuit design tools may create keep-out zones from the aggregate defect map and run learning experiments on each die, while respecting the keep-out zones, to compute design metrics. The circuit design tools may further create larger keep-out zones and run additional learning experiments on each die while respecting the larger keep-out zones to compute additional design metrics. The dies can be binned into different Stock Keeping Units (SKUs) based on one or more of the computed design metrics. Circuit design tools automatically respect the keep-out regions for these dies to program them correctly in the field.Type: GrantFiled: June 26, 2018Date of Patent: June 21, 2022Assignee: Intel CorporationInventors: Dheeraj Subbareddy, Ankireddy Nalamalpu, Mahesh A. Iyer
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Publication number: 20220113788Abstract: The present disclosure describes programmable logic that may be operated in a turbo processing mode to cause an ongoing operation to be completed faster than a scheduled completion time. With at least some of the remaining time to the scheduled completion time, power savings may be realized by operating the programmable logic into a deep sleep mode, where configuration memory associated with the programmable logic may be set to a suitable voltage level as to not cause data loss at lower or zero voltage levels but otherwise realize power savings relative to an amount of power consumed during average processing operations.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventors: Mahesh K. Kumashikar, Ankireddy Nalamalpu, Mahesh A. Iyer, Atul Maheshwari, Yuet Li, MD Altaf Hossain
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Publication number: 20220116041Abstract: Systems or methods of the present disclosure may provide efficient electric power consumption of programmable logic devices based on providing different voltage levels to different portions (e.g., voltage islands) of the programmable logic device. For example, the programmable logic device may include circuitry to provide different voltage levels to different voltage islands. The programmable logic device may implement and operate logic configurations with different operating parameters using different operating voltages for efficient electric power consumption.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventors: Mahesh K. Kumashikar, Ankireddy Nalamalpu, MD Altaf Hossain, Dheeraj Subbareddy, Atul Maheshwari, Yuet Li, Mahesh A. Iyer
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Publication number: 20220116045Abstract: An integrated circuit device that includes programmable logic circuitry that includes a plurality of regions each configured to operate at different voltage levels. The regions may be separated by level shifters that enable communication between the different voltage level regions. The integrated circuitry may also include software that performs voltage aware placement and routing for a user register-transfer level design, and may direct logic to regions according to voltages defined for the regions.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventors: Mahesh K. Kumashikar, Ankireddy Nalamalpu, MD Altaf Hossain, Atul Maheshwari, Yuet Li, Mahesh A. Iyer
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Publication number: 20220113694Abstract: Systems or methods of the present disclosure may provide efficient power consumption for programmable logic devices based on reducing guardband voltages. A programmable logic device may include circuit monitors to mimic critical paths of an implemented circuit design and generate timing information based on the critical paths. A controller on the programmable logic device may adjust the voltage guardband based on the timing information.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Inventors: Mahesh K. Kumashikar, MD Altaf Hossain, Mahesh A. Iyer, Yuet Li, Atul Maheshwari, Ankireddy Nalamalpu