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:
Feb. 22, 2005
Filed:
Dec. 29, 2000
Manoj Khare, Saratoga, CA (US);
Lily P. Looi, Portland, OR (US);
Akhilesh Kumar, Sunnyvale, CA (US);
Kenneth C. Creta, Gig Harbor, WA (US);
Manoj Khare, Saratoga, CA (US);
Lily P. Looi, Portland, OR (US);
Akhilesh Kumar, Sunnyvale, CA (US);
Kenneth C. Creta, Gig Harbor, WA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A method and apparatus are described for providing an implicit write-back in a distributed shared memory environment implementing a snoop based architecture. A requesting node submits a single read request to a snoop based architecture controller switch. The switch recognizes that another node other than the requesting node and the home node for the desired data has a copy of the data. The switch directs the request to the responding node that is not the home node. The responding node, having modified the data, provides a single response back to the switch that causes the switch to both update the data at the home node and answer the requesting node. The updating of the data at the home node is done without receiving an explicit write instruction from the requesting node.