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System and method for snooping cache information using a directory crossbar

  • US 20060174069A1
  • Filed: 01/31/2005
  • Published: 08/03/2006
  • Est. Priority Date: 01/31/2005
  • Status: Active Grant
First Claim
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1. A directory crossbar system, comprising:

  • a first crossbar coupled to a plurality of local processors;

    a second crossbar coupled to at least one remote processor; and

    at least one crossbar directory that tracks access of information by a remote processor in a symmetric multiprocessing (SMP) system, the remote processor in communication with at least one of the local processors via the crossbars, such that a most current location of the information can be determined by the crossbar directory.

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