Information processing method and system

Details Information processing method and system Information processing method and system

1996-06-26

1999-08-03

Bacares, Rafael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359110, 359158, H04J 1402

Patent

active

059332611

ABSTRACT:
An information processing system has a plurality of nodes each including one or more CPUs that utilize monitoring of a common bus, wherein the plurality of nodes are connected to one another by a connection path that cannot monitor information on an internal bus in each node. Information required to perform synchronized operation in a node or among nodes is transmitted to an arbiter via an optical fiber serving as a transmission path different from the connection path, and part of this information is again distributed from the arbiter to each of the nodes based upon the information. The system operates in such a manner that the information is reflected in its own node based upon the re-distributed information. Further, in order to perform the synchronized operation among CPUs based upon the re-distributed information, the system controls the information to be distributed from each node to arbiter. Thus, when an operation for maintaining synchronization among CPUs is performed, the present invention enables the system to reduce processing which accompanies synchronizing operation by CPUs across nodes and improve the processing capability of the entire system.

REFERENCES:
patent: 5185736 (1993-02-01), Tyrrell et al.
patent: 5289303 (1994-02-01), Cloonan et al.
patent: 5561542 (1996-10-01), Kosugi et al.
PowerPC601 RISC Microprocessor User's Manual (MPC601UM/AD Rev 1), secs. 3.5.7, 8.2.9.8, and 9.8.1.

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