Shared memory multiprocessing system & method

Details Shared memory multiprocessing system & method Shared memory multiprocessing system & method

1984-11-14

1987-05-12

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 1516

Patent

active

046654844

ABSTRACT:
When a first program executed on a first processor of a plurality of processors of a multiprocessing system intends to lock a given shared resource of a main memory in order to use same, if the desired resource is in use by a second program executed on a second processor, the first processor awaits an unlock signal which indicates that one of the shared resources is released for use. The first processor responds to the unlock signal and checks whether or not the desired resource is available. If not available, the first program again awaits the reception of the unlock signal, while if available, the first program accesses the desired resource to use same.

REFERENCES:
patent: 3896418 (1975-07-01), Brown

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