Increased bandwidth for multi-processor access of a common resou

Details Increased bandwidth for multi-processor access of a common resou Increased bandwidth for multi-processor access of a common resou

1987-02-20

1988-09-27

Chan, Eddie P.

Boots, shoes, and leggings

G06F 1300

Patent

active

047746602

ABSTRACT:
This circuitry permits equal access to a shared resource by a number of central processing units (CPUs). In a multiple CPU arrangement, common resource contention problems arise, when several CPUs attempt to access the common resource. To resolve these contention problems, this circuitry is an improvement to arbitration ring circuitry. The circuitry of this invention permits each of the CPUs equal access to the common resource during situations in which each CPU is constantly generating requests (high bandwidth utilization) for access to the common resource. This invention is particularly useful for systems in which a large number of CPUs must have their local memory rapidly reloaded from a common memory source. Reloading procedures for large numbers of CPUs rquire up to an hour. By employing the present invention, these reloading times can be cut from one hour to approximately 5 minutes.

REFERENCES:
patent: 4354225 (1982-10-01), Frieder et al.
patent: 4394728 (1983-07-01), Comfort et al.
patent: 4395753 (1983-07-01), Comfort et al.
patent: 4486834 (1984-12-01), Kobayashi et al.

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