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Computation resources provided by modern multi-core processors make it possible to exploit thread-level parallelism in a specu-lative mode. In the past twenty years, tens of thread-level speculation (TLS) systems have been proposed and demonstrated the performance potential of TLS. Limited by the performance over-head caused by dynamic data dependency detection, speculative threads are usually confirmed...
Thread level speculation provides not only a simple parallel programming model, but also an effective mechanism for thread-level parallelism exploitation. The performance of software speculative parallel models is limited by high global overheads caused by different types of loops. These loops usually have different characteristics of dependencies and different requirements of optimization strategies...
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