Patents by Inventor Steven Robert Testa

Steven Robert Testa 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).

  • Preventing livelocks in processor selection of load requests
    Patent number: 8015565
    Abstract: A method, and apparatus are provided for preventing livelocks in processor selection of load requests in a multiprocessor (MP) system. On random occasions a selection mechanism is changed for first holding up all requests and then a random selection is made. Then a round robin selection mechanism is used for further requests. A livelock-preventing selection mechanism includes a pair of linear feedback shift registers (LFSRs), each LFSR for generating pseudo random values.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: September 6, 2011
    Assignee: International Business Machines Corporation
    Inventors: Richard William Doing, John R. Patty, Steven Robert Testa, Thuong Quang Truong