Increased bandwidth for multi-processor access of a common...

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

G - Physics

06

F

354/231

G06F 13/14 (2006.01) G06F 13/18 (2006.01)

Patent

CA 1305559

INCREASED BANDWIDTH FOR MULTI-PROCESSOR ACCESS OF A COMMON RESOURCE ABSTRACT OF THE INVENTION 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 muse have their local memory rapidly reloaded from a common memory source. Reloading procedures for large numbers of CPUs require up to an hour. By employing the present invention, these reloading times can be cut from one hour to approximately 5 minutes.

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