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Rock, Sun's third-generation chip-multithreading processor, contains 16 high-performance cores, each of which can support two software threads. Rock uses a novel checkpoint-based architecture to support automatic hardware scouting under a load miss, speculative out-of-order retirement of instructions, and aggressive dynamic hardware parallelization of a sequential instruction stream. It is also the...
AMD bulldozer module represents a new direction in microarchitecture and includes a number of firsts for AMD, including AMD multithreaded X86 processor, implementation of a shared level 2 cache, and X86 processor to incorporate floating-point multiply-accumulate (FMAC). This article discusses the module multithreading architecture, power-efficient micro architecture, and subblocks, including the various...
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