| 摘要 |
A shared memory symmetrical processing system including a plurality of nodes each having a system control element for routing internodal communications. A first ring and a second ring interconnect the plurality of nodes, wherein data in said first ring flows in opposite directions with respect to said second ring. A receiver receives a plurality of incoming messages via the first or second ring and merges a plurality of incoming message responses with a local outgoing message response to provide a merged response. Each of the plurality of nodes includes any combination of the following: at least one processor, cache memory, a plurality of I/O adapters, and main memory. The system control element includes a plurality of controllers for maintaining coherency in the system.
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