Patents by Inventor Robert Len Walker

Robert Len Walker 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).

  • Selecting processor configuration based on thread usage in a multiprocessor system
    Patent number: 7389506
    Abstract: An embodiment of the invention is a technique to affinitize a thread in a multiprocessor system having N clusters of processors. A usage status of an active thread in the multiprocessor system is determined. The active thread utilize one of first and second local memories associated with first and second processor configurations, respectively. One of the first and second processor configurations is selected based on the usage status.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: June 17, 2008
    Assignee: Unisys Corporation
    Inventors: Matthew Miller, Robert Len Walker
  • Affinitizing threads in a multiprocessor system
    Patent number: 7287254
    Abstract: An embodiment of the invention is a technique to affinitize a thread in a multiprocessor system having N clusters of processors. A count threshold is obtained for thread affinity of the thread. A first thread count is determined. The thread is affinitized to a first cluster in the N clusters of processors according to the first thread count and the count threshold.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: October 23, 2007
    Assignee: Unisys Corporation
    Inventors: Matthew Miller, Robert Len Walker
  • Dynamically generating masks for thread scheduling in a multiprocessor system
    Patent number: 7275249
    Abstract: An embodiment of the invention is a technique to generate a mask schedule for thread scheduling in a multiprocessor system having N clusters of processors. A primary mask is obtained from a primary set of granularity masks. The granularity masks are created according to a thread granularity. The primary mask is filtered using a filter mask to generate a first affinity mask.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: September 25, 2007
    Assignee: Unisys Corporation
    Inventors: Matthew Miller, Robert Len Walker
  • Affinitizing threads in a multiprocessor system
    Publication number: 20040068730
    Abstract: An embodiment of the invention is a technique to affinitize a thread in a multiprocessor system having N clusters of processors. A count threshold is obtained for thread affinity of the thread. A first thread count is determined. The thread is affinitized to a first cluster in the N clusters of processors according to the first thread count and the count threshold.
    Type: Application
    Filed: December 30, 2002
    Publication date: April 8, 2004
    Inventors: Matthew Miller, Robert Len Walker