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中文摘要：
随着片上晶体管资源的增多和互连线延迟的加大，分片式多核微处理器已成为多核处理器设计的新方向为了对这种新型处理器进行体系结构的深入研究和设计空间的探索，设计并实现了针对分片式多核处理器的用户级多核性能模拟器．该多核模拟器在龙芯2号单处理器核的基础上，完整地模拟了基于目录的Cache一致性协议和存储转发式片上互联网络的结构模型，详细地刻画了由于系统乱序处理各种请求应答和请求之间的冲突而造成的时序特性，可以通过运行各种串行或并行的工作负载对多核处理器的各种重要性能指标加以评估，为多核处理器的结构设计提供了快速、灵活、高效的研究平台．
英文摘要：
As the transistor resources and delay of interconnect wires increase, the tiled multi-core processor has been a new direction for multi-core processor. In order to thoroughly study new type processor and explore the design space of it, this paper designs and implements a user-level performance simulator for the tiled CMP architecture. The simulator adopts the directory-based Cache Coherence Protocol and the architecture of store-and-forward Network- on-Chip with Godson-2 CPU as the processing core model, and depicts out-of-order transacted requests and responses and conflictions of requests and their timing characteristics in detail. The simulator can be used to evaluate all kinds of important performance features of the tiled CMP （chip multiprocessor） architecture by running all kinds of sequential or parallel workloads, and thus provides a fast, flexible and efficient platform for architecture design of multi-core processor.
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