Patents by Inventor Joseph Devietti

Joseph Devietti 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).

  • Systems and methods for providing deterministic execution
    Patent number: 9146746
    Abstract: Devices and methods for providing deterministic execution of multithreaded applications are provided. In some embodiments, each thread is provided access to an isolated memory region, such as a private cache. In some embodiments, more than one private cache are synchronized via a modified MOESI coherence protocol. The modified coherence protocol may be configured to refrain from synchronizing the isolated memory regions until the end of an execution quantum. The execution quantum may end when all threads experience a quantum end event such as reaching a threshold instruction count, overflowing the isolated memory region, and/or attempting to access a lock released by a different thread in the same quantum.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: September 29, 2015
    Assignee: University of Washington through its Center of Commercialization
    Inventors: Luis Henrique Ceze, Thomas Bergan, Joseph Devietti, Daniel Joseph Grossman, Jacob Eric Nelson
  • SYSTEMS AND METHODS FOR PROVIDING DETERMINISTIC EXECUTION
    Publication number: 20120226868
    Abstract: Devices and methods for providing deterministic execution of multithreaded applications are provided. In some embodiments, each thread is provided access to an isolated memory region, such as a private cache. In some embodiments, more than one private cache are synchronized via a modified MOESI coherence protocol. The modified coherence protocol may be configured to refrain from synchronizing the isolated memory regions until the end of an execution quantum. The execution quantum may end when all threads experience a quantum end event such as reaching a threshold instruction count, overflowing the isolated memory region, and/or attempting to access a lock released by a different thread in the same quantum.
    Type: Application
    Filed: March 1, 2012
    Publication date: September 6, 2012
    Applicant: University of Washington through its Center for Commercialization
    Inventors: Luis Henrique Ceze, Thomas Bergan, Joseph Devietti, Daniel Joseph Grossman, Jacob Eric Nelson