Electrical computers and digital processing systems: multicomput – Multicomputer data transferring via shared memory – Accessing another computer's memory
Patent
1995-06-07
1999-10-12
Kim, Kenneth S.
Electrical computers and digital processing systems: multicomput
Multicomputer data transferring via shared memory
Accessing another computer's memory
711152, 711163, G06F 1214
Patent
active
059648350
ABSTRACT:
A multiprocessor system includes a number of central processing unit (CPUs) and at least one input/output (I/O) device interconnected by routing apparatus for communicating packetized messages therebetween. The messages contain address information identifying the source and destination of the message, and may also contain requests to write to, or read from, storage of a CPU. Protection against errant reads or writes is provided by an access validation method that utilizes access validation information contained in plural entries maintained by each CPU. Each entry provides validation by identifying what elements of the system has read and/or write wccss to the memory of that CPU, without which memory access is denied.
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Baker William Edward
Bunton William Patterson
Campbell Gary F.
Cutts, Jr. Richard W.
Fowler Daniel L.
Kim Kenneth S.
Tandem Computers Incorporated
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