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Multiprocessor system having distributed shared memory and instruction scheduling method used in the same system

  • US 6,892,280 B2
  • Filed: 06/18/2002
  • Issued: 05/10/2005
  • Est. Priority Date: 11/07/2001
  • Status: Expired due to Term
First Claim
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1. A multiprocessor system having distributed shared memory, comprising a plurality of nodes connected via an inter-node interface, each of the nodes including at least one processor, a main storage controller, and a main storage belonging to the distributed shared memory with an individual memory address, whereineach processor comprises instruction executing means for executing an NUMA prefetch instruction, the instruction executing means includes an address determiner which terminates the processing of the NUMA prefect instruction without conducting a prefetch operation if an address specified in the NUMA prefetch instruction is associated with a local node, to which the processor belongs, and which issues, only if the address is associated with a remote node other than the local node, a prefetch request to a main storage controller of the local node.

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