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Communication between multi-processor clusters of multi-cluster computer systems

  • US 20050034049A1
  • Filed: 08/05/2003
  • Published: 02/10/2005
  • Est. Priority Date: 08/05/2003
  • Status: Active Grant
First Claim
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1. A computer system comprising a plurality of processor clusters interconnected by a plurality of point-to-point inter-cluster links, each processor cluster comprising nodes including a plurality of local processors and an interconnection controller interconnected by a plurality of point-to-point intra-cluster links, communications within a cluster being made via an intra-cluster protocol that uses intra-cluster packets, wherein the interconnection controller in each cluster is operable to map locally-generated communications directed to others of the clusters to the point-to-point inter-cluster links and to map remotely-generated communications directed to the local nodes to the point-to-point intra-cluster links, communications between clusters being made via an inter-cluster protocol that uses inter-cluster packets, an inter-cluster packet encapsulating at least one intra-cluster packet, each interconnection controller configured to compute a first cyclic redundancy code check for, and to encode first cyclic redundancy code check data in, each inter-cluster packet transmitted on the point-to-point inter-cluster links.

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