Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Reexamination Certificate
2007-07-24
2007-07-24
Kim, Matthew (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
C711S130000, C709S217000
Reexamination Certificate
active
10635703
ABSTRACT:
According to the present invention, methods and apparatus are provided for increasing the efficiency of data access in a multiple processor, multiple cluster system. Mechanisms for allowing a variety of transactions to complete locally are implemented by providing remote data caches associated with the various clusters in the system. The remote data caches receive data and state information for memory lines held in remote clusters. If information for responding to a request is available in a remote data cache, a response with a completion indicator is provided to the requesting processor. The completion indicator allows the request to be met without having to probe local or remote nodes.
REFERENCES:
patent: 5524212 (1996-06-01), Somani et al.
patent: 5751995 (1998-05-01), Sarangdhar
patent: 5893151 (1999-04-01), Merchant
patent: 6014709 (2000-01-01), Gulick et al.
patent: 6052769 (2000-04-01), Huff et al.
patent: 6085295 (2000-07-01), Ekanadham et al.
patent: 6108737 (2000-08-01), Sharma et al.
patent: 6122715 (2000-09-01), Palanca et al.
patent: 6167492 (2000-12-01), Keller et al.
patent: 6173393 (2001-01-01), Palanca et al.
patent: 6189078 (2001-02-01), Bauman et al.
patent: 6205520 (2001-03-01), Palanca et al.
patent: 6253292 (2001-06-01), Jhang et al.
patent: 6343347 (2002-01-01), Arimilli et al.
patent: 6385705 (2002-05-01), Keller et al.
patent: 6490661 (2002-12-01), Keller et al.
patent: 6636906 (2003-10-01), Sharma et al.
patent: 6640287 (2003-10-01), Gharachorloo et al.
patent: 6658526 (2003-12-01), Nguyen et al.
patent: 6665767 (2003-12-01), Comisky et al.
patent: 6728841 (2004-04-01), Keller
patent: 6751721 (2004-06-01), Webb et al.
patent: 6799252 (2004-09-01), Bauman
patent: 6973543 (2005-12-01), Hughes
patent: 2001/0013089 (2001-08-01), Weber
patent: 2002/0046327 (2002-04-01), Gharachorloo et al.
patent: 2002/0053004 (2002-05-01), Pong
patent: 2002/0087807 (2002-07-01), Gharachorloo
patent: 2004/0039880 (2004-02-01), Pentkovski et al.
patent: 2004/0088492 (2004-05-01), Glasco et al.
patent: 2004/0088494 (2004-05-01), Glasco
patent: 2004/0111566 (2004-06-01), Edirisooriya et al.
patent: 2004/0117554 (2004-06-01), Raghavan
patent: 2004/0117559 (2004-06-01), Glasco et al.
patent: 2004/0123047 (2004-06-01), Hum et al.
patent: 2004/0236912 (2004-11-01), Glasco et al.
HyperTransport™ I/O Link Specification Revision 1.03, HyperTransport™ Consortium, Oct. 10, 2001, Copyright © 2001 HyperTransport Technology Consortium.
Bilir et al., “Multicast Snooping, a New Coherence Method Using a Multicast Address Network,” Proceedings of the 26thInt'l Symposium on May 2-4, 1999 http://www.cs.wise.edu/multifacet/papers/isca99—multicast.pdf.
Martin et al., “Bandwidth Adaptive Snooping” Proceedings of the Eight International Symposium on High-Performance Computer Architecture (HPCA”02) 1503-0897/02, IEEE.
Sorin et al, “Specifying and Verfiying a Broadcast and a multicast Snooping Cache′Coherence Protocol”1045-9219/02, IEEE.
International Search Report dated Dec. 3, 2004 from related International Application No. PCT/US03/34756.
U.S. Office Action mailed May 12, 2005, from related U.S. Appl. No. 10/288,347.
Beyer & Weaver, LLP
Kim Matthew
Newisys, INc.
Thomas Shane M.
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