Method and system for speculatively accessing cache memory data

Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories

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711147, G06F 1300

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active

058954848

ABSTRACT:
A method and system for speculatively sourcing cache memory data within a multiprocessor data-processing system is disclosed. In accordance with the method and system of the present invention, the data-processing system has multiple processing units, each of the processing units including at least one cache memory. In response to a request for data by a first processing unit within the data-processing system, an intervention response is issued from a second processing unit within the data-processing system that contains the requested data. The requested data is then read from a cache memory within the second processing unit before a combined response from all the processing units returns to the second processing unit.

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