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    • 4. 发明申请
    • APPARATUS AND METHOD FOR EFFICIENT MIGRATION OF ARCHITECTURAL STATE BETWEEN PROCESSOR CORES
    • 处理器之间建筑状态有效迁移的装置和方法
    • US20150095614A1
    • 2015-04-02
    • US14040230
    • 2013-09-27
    • Bret L. TollScott D. HahnJason W. BrandtThomas F. Toll
    • Bret L. TollScott D. HahnJason W. BrandtThomas F. Toll
    • G06F9/38
    • G06F9/3824G06F9/3851G06F9/4856
    • An apparatus and method are described for the efficient migration of architectural state between processor cores. For example, a processor according to one embodiment comprises: a first processing core having a first instruction execution pipeline including first register set for storing a first architectural state of a first thread being executed thereon; a second processing core having a second instruction execution pipeline including a second register set for storing a second architectural state of a second thread being executed thereon; and architectural state migration logic to perform a direct, simultaneous swap of the first architectural state from the first register set with the second architectural state from the second register set responsive to detecting that the execution of the first thread is to be migrated from the first core to the second core.
    • 描述了用于处理器核心之间架构状态的有效迁移的装置和方法。 例如,根据一个实施例的处理器包括:具有第一指令执行流水线的第一处理核心,第一指令执行流水线包括用于存储在其上执行的第一线程的第一架构状态的第一寄存器集; 第二处理核心,具有第二指令执行流水线,该第二指令执行流水线包括第二寄存器组,用于存储在其上执行的第二线程的第二架构状态; 以及体系结构状态迁移逻辑,用于响应于检测到要从第一核心迁移第一线程的执行,执行来自第二架构状态的第一寄存器与第二寄存器集的第一架构状态的直接同时交换 到第二个核心。