Patents by Inventor Shijia Wei

Shijia Wei 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).

  • Per-instruction energy debugging using instruction sampling hardware
    Patent number: 11556162
    Abstract: A processor utilizes instruction based sampling to generate sampling data sampled on a per instruction basis during execution of an instruction. The sampling data indicates what processor hardware was used due to the execution of the instruction. Software receives the sampling data and generates an estimate of energy used by the instruction based on the sampling data. The sampling data may include microarchitectural events and the energy estimate utilizes a base energy amount corresponding to the instruction executed along with energy amounts corresponding to the microarchitectural events in the sampling data. The sampling data may include switching events associated with hardware blocks that switched due to execution of the instruction and the energy estimate for the instruction is based on the switching events and capacitance estimates associated with the hardware blocks.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 17, 2023
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Shijia Wei, Joseph L. Greathouse, John Kalamatianos
  • PER-INSTRUCTION ENERGY DEBUGGING USING INSTRUCTION SAMPLING HARDWARE
    Publication number: 20190286209
    Abstract: A processor utilizes instruction based sampling to generate sampling data sampled on a per instruction basis during execution of an instruction. The sampling data indicates what processor hardware was used due to the execution of the instruction. Software receives the sampling data and generates an estimate of energy used by the instruction based on the sampling data. The sampling data may include microarchitectural events and the energy estimate utilizes a base energy amount corresponding to the instruction executed along with energy amounts corresponding to the microarchitectural events in the sampling data. The sampling data may include switching events associated with hardware blocks that switched due to execution of the instruction and the energy estimate for the instruction is based on the switching events and capacitance estimates associated with the hardware blocks.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 19, 2019
    Inventors: Shijia Wei, Joseph L. Greathouse, John Kalamatianos