Electrical computers and digital processing systems: multicomput – Multicomputer data transferring via shared memory – Plural shared memories
Utility Patent
1993-08-10
2001-01-02
Cabeca, John W. (Department: 2752)
Electrical computers and digital processing systems: multicomput
Multicomputer data transferring via shared memory
Plural shared memories
C709S218000
Utility Patent
active
06170003
ABSTRACT:
BACKGROUND TO THE INVENTION
This invention relates to multi-nodal data processing systems. More specifically the invention is concerned with providing a mechanism for communicating messages between the nodes of such a system.
One way of communicating messages between nodes is for the sending node to transmit the messages to the receiving node over an inter-node network. A problem with this, however, is that the receiving node may become overloaded with messages received from other nodes, and as a result messages may be lost.
An object of the present invention is to provide an improved message passing mechanism that does not suffer from this problem.
SUMMARY OF THE INVENTION
According to the invention there is provided a data processing system comprising a plurality of data processing nodes, wherein each node comprises:
(a) local memory means for storing a plurality of message send vectors, one for each other node in the system,
(b) message send means for placing messages in said message send vectors, each message being placed in the message send vector corresponding to the destination node of that message, and
(c) message receive means for reading messages from the message send vectors corresponding to this node in the other nodes.
REFERENCES:
patent: 5020020 (1991-05-01), Pomfret et al.
patent: 5089958 (1992-02-01), Horton et al.
patent: 5317715 (1994-05-01), Johnson et al.
patent: 5329619 (1994-07-01), Pag{acute over (e)} et al.
Benkual Jack
Brumm Allen Harold
Colloff Ian Gregory
Cabeca John W.
International Computers Limited
Lee Mann Smith McWilliams Sweeney & Ohlson
Tran Denise
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