TWO-STAGE REQUEST PROTOCOL FOR ACCESSING REMOTE MEMORY DATA IN NON-UNIFORM MEMORY ACCESS(NUMA) DATA PROCESSING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a NUMA architecture having improved queuing, storage and communication functions. SOLUTION: A NUMA computer system 50 has at least two nodes 52 coupled by a node interconnect switch 55. Each of nodes 52 is practically equal and has at least one processing unit 54 coupled to a local interconnect 58 and a node controller 56 coupled between the local interconnect 58 and the node interconnect switch 55. Each of node controllers 56 is functioned as a local agent for the other node 52 by transmitting a selecting instruction received on the local interconnect 58 through the node interconnect switch 55 to the other node 52.