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US 7,444,494 B2Granted
Data processing system and method for predictively selecting a scope of broadcast of an operation utilizing a history-based prediction
AssigneeInternational Business Machines Corporation
InventorsBenjiman L. Goodman, Guy L. Guthrie, William J. Starke, Jeffrey A. Stuecheli, Derek E. Williams
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Abstract
According to a method of data processing, a predictor is maintained that indicates a historical scope of broadcast for one or more previous operations transmitted on an interconnect of a data processing system. A scope of broadcast of a subsequent operation is predictively selected by reference to the predictor.
Claims6
A method of data processing in a data processing system, said method comprising:
- maintaining a predictor indicating a historical scope of broadcast for one or more previous operations transmitted on an interconnect of a data processing system;
- predictively selecting a scope of broadcast of a subsequent operation by reference to said predictor, said predictively selecting comprising predictively selecting a scope of broadcast of a subsequent operation by reference to said predictor if said operation is of a first predetermined operation type;
- and
- predictively selecting a scope of broadcast of a subsequent operation by reference to a coherency state of a target memory address of said operation if said operation is of a second predetermined operation type.
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Dependencies are inferred from the claim text.