Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 19, 2008
Patent Application Number
10442845
Date Filed
May 20, 2003
Patent Primary Examiner
Patent 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. State information is provided to the remote data cache using various mechanisms including a coherence directory and augmented source done messages.
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