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中文摘要：
片上互连结构和cache一致性协议是片上多核处理器（CMP）设计的关键。为了探索使用环形互连结构CMP的cache一致性协议设计空间，需要使用对环形互连结构和cache--R性协议进行精确模拟的CMP模拟器平台。Godson—Ring是一个环连接CMP的用户态模拟器平台，采用功能和时序相分离的模拟方式，使用了事件驱动和执行驱动相结合的方法，周期精确地模拟了环形互连结构和cache一致性协议的硬件行为。该模拟器具有速度快和灵活性高的特点，能模拟多种cache一致性协议，可以快速、有效地探索环连接CMP的cache一致性协议设计空间。
英文摘要：
Network On Chip （NOC）and cache coherence protocol are the key design points of Chip Multi-Processor（CMP）. To explore the cache coherence protocol design space of ring connected CMP, a CMP simulator needs to simulate the ring and cache coherence protocol precisely. Godson-Ring is a user mode ring connected CMP simulator. It simulates the functional and timing behaviors of CMP separately, and combines the event driven and execution driven methods together. The simulator accu- rately simulates the cache coherence protocol and ring cycle by cycle. It＇ s fast and flexible, and can explore the design space of cache coherence protocol efficiently.
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