System for performing a serializing control of a reference...

Details System for performing a serializing control of a reference... System for performing a serializing control of a reference...

G - Physics

06

F

354/233, 354/241

G06F 12/00 (2006.01) G06F 9/46 (2006.01)

Patent

CA 2000435

When a serialization is requested by a particular CPU the situation is divided into two cases. In the first case, the particular CPU is locked to prevent the main storage access. In the second case, the particular CPU can perform the fetch of the data without waiting for completion of the serialization. When a serialization is requested by a particular CPU after a "STORE", the particular CPU notifies the serialization to other CPUs. When the serialization is notified from other CPUs to the particular CPU, then the particular CPU lets the following fetch wait until the serialization of the other CPUs is completed. If serialization is not notified from other CPUs then the particular CPU immediately executes the following fetch. When the particular CPU does not request the serialization, it disregards the serialization notification from other CPUs.

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