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:
Aug. 14, 2001
Filed:
Jan. 27, 1999
Dean A. Liberty, Palenville, NY (US);
International Business Machines Company, Armonk, NY (US);
Abstract
A hybrid non-uniform-memory-architecture/simple-cache-only-memory-architecture (NUMA/S-COMA) memory system and method are described useful in association with a computer system having a plurality of nodes coupled to each other. The plurality of nodes include NUMA memory which are configured to store data lines. The NUMA memories include a NUMA coherence subsystem for coordinating transfer of data between the nodes. At least one S-COMA cache is provided on at least one node of the computer system. The at least one S-COMA cache is configured to employ the NUMA coherence subsystem in sending data communication to or receiving data communication from another node of the plurality of nodes of the computer system. Data stored at another node of the system is accessed using a home node real address as the network address. The home node real address is translated into a local real address at the client node using a boundary function translation table. The NUMA coherence subsystem is employed by the S-COMA cache to provide data reference capture, data movement and coherence mechanisms, thereby avoiding the need for a separate S-COMA coherence mechanism to accomplish these functions.