Mechanism for starvation avoidance while maintaining cache...

Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C711S145000, C711S143000

Reexamination Certificate

active

10610453

ABSTRACT:
A computer system comprises a system memory, a first active device configured to access data stored in the system memory, and a second active device configured to access data stored in said system memory. The first active device is configured to generate a read-to-share transaction corresponding to a load operation. In response to receiving an invalidating transaction subsequent to receiving the read-to-share transaction, the first active device selectively allows the load operation to complete depending upon an indication of whether the load operation is a critical load. In one embodiment, an active device comprises a processing unit and an interface controller coupled to receive a load request corresponding to a load operation initiated by said processing unit.

REFERENCES:
patent: 5276852 (1994-01-01), Callander et al.
patent: 5655100 (1997-08-01), Ebrahim et al.
patent: 5761721 (1998-06-01), Baldus et al.
patent: 5802582 (1998-09-01), Ekanadham et al.
patent: 5829033 (1998-10-01), Hagersten et al.
patent: 5860159 (1999-01-01), Hagersten
patent: 5978874 (1999-11-01), Singhal et al.
patent: 5983326 (1999-11-01), Hagersten et al.
patent: 6088768 (2000-07-01), Baldus et al.
patent: 6209064 (2001-03-01), Weber
patent: 6766360 (2004-07-01), Conway et al.
patent: 2003/0079094 (2003-04-01), Rajwar et al.
“Specifying and Verifying a Broadcast and a Multicast Snooping Cache Coherence Protocol”, Sorin, et al,IEEE Transactions on Parallel and Distributed Systems, vol. 13, No. 6, Jun. 2002, http://www.cs.wisc.edu/multifacet/papers/tpds02—lamport.pdf.
“Multicast Snooping: A New Coherence Method Using a Multicast Address Network”, Bilir, et al,The 26thInternational Symposium on Computer Architecture, IEEE, Atlanta, GA, May 2-4, 1999, http://csdl.computer.org/comp/proceedings/isca/1999/0170/01700294abs.htm.
“Architecture and Design of AlphaServer GS320”, Gharachorloo, et al,ACM Sigplan Notices, vol. 35, Issue 11, Nov. 2000, http://portal.acm.org/citation.cfm?id=356991&dl=ACM&coll=portal.
“View Caching: Efficient Software Shared Memory for Dynamic Computations”, Karamcheti, et al, 11thInternational Parallel Processing Symposium, Geneva, Switzerland, Apr. 1-5, 1997, http://ipdps.eece.unm.edu/1997/s13/318.pdf.
“Cache-Coherent Distributed Shared Memory: Perspectives on Its Development and Future Challenges”, Hennessy, et al,Proceedings of the IEEE, vol. 87, Issue 3, Mar. 1999, ISSN 0018-9219, http://cva.stanford.edu/cs99s/papers/hennessy-cc.pdf.
“Survey on Cache Coherence in Shared & Distributed Memory Multiprocessors”, Garg, et al, Online, http://www.cse.psu.edu/˜cg530/proj03/cache—coherence.pdf.
“A Survey of Cache Coherence Mechanisms in Shared Memory Multiprocessors”, Lawrence, Department of Computer Science, University of Manitoba, Manitoba, Canada, May 14, 1998, http://www.cs.uiowa.edu/˜rlawrenc/research/Papers/cc.pdf.
“Bandwidth Adaptive Snooping”, Martin, et al.8thAnnual International Symposium on High-Performance Computer Architecture(HPCA-8), Cambridge, MA, Feb. 2-6, 2002.
“Timestamp Snooping: An Approach for Extending SMPs”, Martin, et al.,9thInternational Conference on Architectural Support for Programming Languages and Operating Systems(ASPLOS-IX), Cambridge, MA, Nov. 13-15, 2000.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Mechanism for starvation avoidance while maintaining cache... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanism for starvation avoidance while maintaining cache..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanism for starvation avoidance while maintaining cache... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3761319

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.