The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 2012
Filed:
Feb. 10, 2005
Leo J. Clark, Georgetown, TX (US);
James S. Fields, Jr., Austin, TX (US);
Guy L. Guthrie, Austin, TX (US);
William J. Starke, Round Rock, TX (US);
Leo J. Clark, Georgetown, TX (US);
James S. Fields, Jr., Austin, TX (US);
Guy L. Guthrie, Austin, TX (US);
William J. Starke, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A cache coherent data processing system includes at least first and second coherency domains coupled for communication. The first and second coherency domains each include a respective one of first and second cache memories. A master in the first coherency domain selects a scope of an initial broadcast of an operation from among a first scope including only the first coherency domain and a second scope including both the first and second coherency domains based, at least in part, upon a type of the operation. The master then performs an initial broadcast of the operation within the cache coherent data processing system utilizing the selected scope.