Patents by Inventor Ralph A. Bellofatto

Ralph A. Bellofatto 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).

  • Reproducibility in a multiprocessor system
    Patent number: 8595554
    Abstract: Fixing a problem is usually greatly aided if the problem is reproducible. To ensure reproducibility of a multiprocessor system, the following aspects are proposed: a deterministic system start state, a single system clock, phase alignment of clocks in the system, system-wide synchronization events, reproducible execution of system components, deterministic chip interfaces, zero-impact communication with the system, precise stop of the system and a scan of the system state.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: November 26, 2013
    Assignee: International Business Machines Corporation
    Inventors: Ralph A. Bellofatto, Dong Chen, Paul W. Coteus, Noel A. Eisley, Alan Gara, Thomas M. Gooding, Rudolf A. Haring, Philip Heidelberger, Gerard V. Kopcsay, Thomas A. Liebsch, Martin Ohmacht, Don D. Reed, Robert M. Senger, Burkhard Steinmacher-Burow, Yutaka Sugawara
  • REPRODUCIBILITY IN A MULTIPROCESSOR SYSTEM
    Publication number: 20110119521
    Abstract: Fixing a problem is usually greatly aided if the problem is reproducible. To ensure reproducibility of a multiprocessor system, the following aspects are proposed: a deterministic system start state, a single system clock, phase alignment of clocks in the system, system-wide synchronization events, reproducible execution of system components, deterministic chip interfaces, zero-impact communication with the system, precise stop of the system and a scan of the system state.
    Type: Application
    Filed: May 5, 2010
    Publication date: May 19, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ralph A. Bellofatto, Dong Chen, Paul W. Coteus, Noel A. Eisley, Alan Gara, Thomas M. Gooding, Rudolf A. Haring, Philip Heidelberger, Gerard V. Kopcsay, Thomas A. Liebsch, Martin Ohmacht, Don D. Reed, Robert M. Senger, Burkhard Steinmacher-Burow, Yutaka Sugawara