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METHODOLOGY FOR FAST DETECTION OF FALSE SHARING IN THREADED SCIENTIFIC CODES
METHODOLOGY FOR FAST DETECTION OF FALSE SHARING IN THREADED SCIENTIFIC CODES
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机译:快速检测螺纹科学代码中错误共享的方法
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摘要
A profiling tool identifies a code region with a false sharing potential. A static analysis tool classifies variables and arrays in the identified code region. A mapping detection library correlates memory access instructions in the identified code region with variables and arrays in the identified code region while a processor is running the identified code region. The mapping detection library identifies one or more instructions at risk, in the identified code region, which are subject to an analysis by a false sharing detection library. A false sharing detection library performs a run-time analysis of the one or more instructions at risk while the processor is re-running the identified code region. The false sharing detection library determines, based on the performed run-time analysis, whether two different portions of the cache memory line are accessed by the generated binary code.
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