Data processing system

Details Data processing system Data processing system

1983-02-17

1985-12-31

Thomas, James D.

Boots, shoes, and leggings

370 86, G06F 1516, G06F 1342

Patent

active

045625395

ABSTRACT:
A data processing system comprising multiple processing nodes each containing a processor and a data store. The store holds local data, and also holds copies of shared data required by the node. This reduces conflict between the nodes in accessing the shared data. When one node updates the shared data, it sends an update message to all the other nodes over a transmission link. The processor is then free to continue processing. When the message reaches the other nodes, it updates the other copies of the shared data, so as to ensure consistency. Each node receives messages from the link in the same order, and this defines a unique chronological order for the updates, even though the nodes are asynchronous. A node is temporarily suspended if an update occurs out of this correct chronological order.

REFERENCES:
patent: 3845474 (1974-10-01), Lange
patent: 3889237 (1975-06-01), Alferness
patent: 4007450 (1977-02-01), Haibt et al.
patent: 4019176 (1977-04-01), Cour
patent: 4136386 (1979-01-01), Annunziata
patent: 4322795 (1982-03-01), Lange
patent: 4385351 (1983-05-01), Matsuura
patent: 4432057 (1984-02-01), Daniell et al.
patent: 4445174 (1984-04-01), Fletcher
patent: 4491946 (1985-01-01), Kryskow et al.

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