Patents by Inventor Pattabi R. Seshadri

Pattabi R. Seshadri 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).

  • Augmenting of automated clustering-based trace sampling methods by user-directed phase detection
    Patent number: 8000953
    Abstract: Computer implemented method, system, and computer usable program code for simulating processor operation in a data processing system. An instruction trace is generated, wherein the instruction trace includes markers specified by a user for identifying interval boundaries for at least one interval of the instruction trace. The instruction trace is divided into a plurality of intervals in consideration of the markers, and the plurality of intervals are formed into a plurality of interval clusters, wherein each interval cluster represents one phase of execution of the instruction trace. At least one interval from each of the plurality of interval clusters is selected as a trace sample to provide a plurality of trace samples, wherein each selected interval is of at least a minimum size, a simulation is performed using the plurality of trace samples, and a result of the simulation is provided to the user.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: August 16, 2011
    Assignee: International Business Machines Corporation
    Inventors: Robert H. Bell, Jr., Wen-Tzer Thomas Chen, Pattabi R. Seshadri, John-David Wellman
  • Augmenting of Automated Clustering-Based Trace Sampling Methods by User-Directed Phase Detection
    Publication number: 20090055153
    Abstract: Computer implemented method, system, and computer usable program code for simulating processor operation in a data processing system. An instruction trace is generated, wherein the instruction trace includes markers specified by a user for identifying interval boundaries for at least one interval of the instruction trace. The instruction trace is divided into a plurality of intervals in consideration of the markers, and the plurality of intervals are formed into a plurality of interval clusters, wherein each interval cluster represents one phase of execution of the instruction trace. At least one interval from each of the plurality of interval clusters is selected as a trace sample to provide a plurality of trace samples, wherein each selected interval is of at least a minimum size, a simulation is performed using the plurality of trace samples, and a result of the simulation is provided to the user.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 26, 2009
    Inventors: Robert H. Bell, JR., Wen-Tzer Thomas Chen, Pattabi R. Seshadri, John-David Wellman