Patents by Inventor Yaoging Gao

Yaoging Gao 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).

  • Aggregate bandwidth through management using insertion of reset instructions for cache-to-cache data transfer
    Patent number: 7168070
    Abstract: A method and system for reducing or avoiding store misses with a data cache block zero (DCBZ) instruction in cooperation with the underlying hardware load stream prefetching support for helping to increase effective aggregate bandwith. The method identifies and classifies unique streams in a loop based on dependency and reuse analysis, and performs loop transformations, such as node splitting, loop distribution or stream unrolling to get the proper number of streams. Static prediction and run-time profile information are used to guide loop and stream selection. Compile-time loop cost analysis and run-time check code and versioning are used to determine the number of cache lines ahead of each reference for data cache line zeroing and to tolerate required data alignment relative to data cache lines.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: January 23, 2007
    Assignee: International Business Machines Corporation
    Inventors: Roch Georges Archambault, Robert James Blainey, Yaoging Gao, Randall Ray Heisch, Steven Wayne White
  • Aggregate bandwidth through store miss management for cache-to-cache data transfer
    Publication number: 20050268039
    Abstract: A method and system for reducing or avoiding store misses with a data cache block zero (DCBZ) instruction in cooperation with the underlying hardware load stream prefetching support for helping to increase effective aggregate bandwith. The method identifies and classifies unique streams in a loop based on dependency and reuse analysis, and performs loop transformations, such as node splitting, loop distribution or stream unrolling to get the proper number of streams. Static prediction and run-time profile information are used to guide loop and stream selection. Compile-time loop cost analysis and run-time check code and versioning are used to determine the number of cache lines ahead of each reference for data cache line zeroing and to tolerate required data alignment relative to data cache lines.
    Type: Application
    Filed: May 25, 2004
    Publication date: December 1, 2005
    Applicant: International Business Machines Corporation
    Inventors: Roch Archambault, Robert Blainey, Yaoging Gao, Randall Heisch, Steven White