Title
MIMS: Towards a Message Interface based Memory System
Abstract
The decades-old synchronous memory bus interface has restricted many innovations in the memory system, which is facing various challenges (or walls) in the era of multi-core and big data. In this paper, we argue that a message-based interface should be adopted to replace the traditional bus-based interface in the memory system. A novel message interface based memory system called MIMS is proposed. The key innovation of MIMS is that processors communicate with the memory system through a universal and flexible message packet interface. Each message packet is allowed to encapsulate multiple memory requests (or commands) and additional semantic information. The memory system is more intelligent and active by equipping with a local buffer scheduler, which is responsible for processing packets, scheduling memory requests, preparing responses, and executing specific commands with the help of semantic information. Under the MIMS framework, many previous innovations on memory architecture as well as new optimization opportunities such as address compression and continuous requests combination can be naturally incorporated. The experimental results on a 16-core cycle-detailed simulation system show that: with accurate granularity message, MIMS can improve system performance by 53.21% and reduce energy delay product (EDP) by 55.90%. Furthermore, it can improve effective bandwidth utilization by 62.42% and reduce memory access latency by 51% on average.
Year
DOI
Venue
2013
10.1007/s11390-014-1428-7
JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY
Keywords
DocType
Volume
message interface,memory system,asynchronous,granularity,semantic information
Journal
29
Issue
ISSN
Citations 
2
1000-9000
5
PageRank 
References 
Authors
0.51
41
10
Name
Order
Citations
PageRank
Licheng Chen11039.74
Tianyue Lu283.26
Yanan Wang3222.57
Ming-yu Chen490279.29
Yuan Ruan5413.38
Zehan Cui619710.00
Yongbing Huang7766.24
Mingyang Chen891.57
Jiutian Zhang991.26
Yungang Bao1036131.11