Cache Coherence in Wormhole Networks

该项目正在研究虫洞网络在支持高速缓存一致性多处理器方面的使用。由执行驱动的模拟器生成以以突发形式到达的固定长度消息为特征的高速缓存一致性Gflow。此流量用于评估可选的消息调度方案、自适应路由方案、虚拟通道和接口设计。作为这项研究的一部分，正在制定和评估新的连贯和同步方案。该项目分为三个阶段。在第一阶段中，研究了互连网络中的拥塞对高速缓存一致性多处理器性能的影响。第二阶段侧重于开发减少高速缓存一致性流量和失效时间的技术。第三阶段是开发有效利用虫洞网络的新协议。

This project is investigating the use of wormhole networks in supporting cache- coherent multiprocessors. Cache coherence gtraffic, characterized by fixed length messages that arrive in bursts, is generated by an execution-driven simulator. This traffic is used to evaluate alternative message scheduling schemes, adaptive routing schemes, virtual channels, and interface designs. New coherence and synchronization schemes are being developed and evaluated as part of this research. The project is divided into three phases. In the first phase the effect of congestion in the interconnection network in performane of cache-coherent multiprocessors is being investigated. The second phase emphasizes the development of techniques to reduce cache coherence traffic and invalidation time. The third phase is the development of new protocols that use wormhole networks effectively.