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Methods and devices for injecting commands in systems having multiple multi-processor clusters

  • US 7,222,262 B2
  • Filed: 08/05/2003
  • Issued: 05/22/2007
  • Est. Priority Date: 08/05/2003
  • Status: Expired due to Fees
First Claim
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1. A computer system comprising a plurality of processor clusters, each cluster including a plurality of nodes, the nodes including processors and an interconnection controller interconnected by point-to-point intra-cluster links, each of the processors and the interconnection controller communicating within a cluster via an intra-cluster transaction protocol, inter-cluster links being formed between interconnection controllers of different clusters, each of the processors and the interconnection controller in a cluster having a test interface for communicating with a service processor, at least one of the nodes in a cluster is a command-injecting node configured to receive a command via a test interface and to inject the command into a queue of commands according to the intra-cluster transaction protocol.

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