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Methods and apparatus for speculative probing at a request cluster

DC
  • US 7,107,409 B2
  • Filed: 03/22/2002
  • Issued: 09/12/2006
  • Est. Priority Date: 03/22/2002
  • Status: Expired due to Fees
First Claim
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1. A computer system, comprising:

  • a first cluster including a first plurality of processors and a first cache coherence controller, the first plurality of processors and the first cache coherence controller interconnected in a point-to-point architecture;

    a second cluster including a second plurality of processors and a second cache coherence controller, the second plurality of processors and the second cache coherence controller interconnected in a point-to-point architecture, the first cache coherence controller coupled to the second cache coherence controller;

    wherein the first cache coherence controller is configured to receive a cache access request originating from the first plurality of processors and send a probe to the first plurality of processors in the first cluster before the cache access request is received by a serialization point in the second cluster.

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