A Power-Efficient Method for Token Protocol

摘要：

Token protocol provides a flexible framework for designing new coherence protocols. However, messages in typical token protocol are always broadcasted, which results in significant power consumption. Power consumption has become one of the primary design constrains for microprocessor. In this paper, a power-efficient method which employs a filter table is proposed to reduce power. The filter table records the recently used blocks, when a local cache miss happens, the core checks if matching blocks exist in the filter table. If the type of the request is GETS, the filter table provides the blocks owner information. If the type of the request is GETX, the requestor sends requests to all the blocks sharers. So the token protocol only accesses the nodes which hold the tokens, neednt broadcast messages to all the nodes, this reduces the reference times of the interconnect network and caches, and thus reduce the systems power by avoid useless messages. Results from our analytical model show that this method reduces power and network traffic efficiently.

关键词： token protocol power-efficient the fliter table network tafflc

作者: Guitao Fu Zuocheng Xing Tianlei Zhao Yuxing Tang

作者单位: School of Computer Science National University of Defense Technology Changsha 410073 China

会议类型: 国际会议

会议名称: 2010 International Conference on Future Information Technology(2010年未来信息技术国际会议 ICFIT 2010)

会议地点: 长沙

会议语种:英文

页码: 580-583

在线出版日期: 2010-12-14（万方平台首次上网日期，不代表论文的发表时间）