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Mechanism for optimizing generation of commit-signals in a distributed shared-memory system

  • US 6,209,065 B1
  • Filed: 10/24/1997
  • Issued: 03/27/2001
  • Est. Priority Date: 10/24/1997
  • Status: Expired due to Term
First Claim
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1. A mechanism for optimizing generation of a commit signal in response to a local memory reference operation issued by a first processor in a distributed shared memory multiprocessor system having a hierarchical switch for interconnecting a plurality of nodes, each node comprising a local switch interconnecting at least one local processor with the hierarchical switch, the mechanism comprising:

  • a structure for optimizing the generation of the commit signal, the optimized commit signal being generated by control logic at a first node associated with the first processor instead of at the hierarchical switch, the structure indicating whether the memory reference operation issued by the first processor affects any non-local processor of the system, the optimized commit signal transmitted to the first processor to thereby obviate transmission of the signal to the hierarchical switch.

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