Title
Adapting Memory Hierarchies for Emerging Datacenter Interconnects.
Abstract
Efficient resource utilization requires that emerging datacenter interconnects support both high performance communication and efficient remote resource sharing. These goals require that the network be more tightly coupled with the CPU chips. Designing a new interconnection technology thus requires considering not only the interconnection itself, but also the design of the processors that will rely on it. In this paper, we study memory hierarchy implications for the design of high-speed datacenter interconnects — particularly as they affect remote memory access — and we use PCIe as the vehicle for our investigations. To that end, we build three complementary platforms: a PCIe-interconnected prototype server with which we measure and analyze current bottlenecks; a software simulator that lets us model microarchitectural and cache hierarchy changes; and an FPGA prototype system with a streamlined switchless customized protocol Thunder with which we study hardware optimizations outside the processor. We highlight several architectural modifications to better support remote memory access and communication, and quantify their impact and limitations.
Year
DOI
Venue
2015
10.1007/s11390-015-1507-4
J. Comput. Sci. Technol.
Keywords
Field
DocType
high-speed interconnect, memory hierarchy, time shared memory, datacenter network
Central processing unit,Memory hierarchy,Computer science,FPGA prototype,Real-time computing,PCI Express,High performance communication,Shared resource,Hierarchy,Interconnection,Embedded system
Journal
Volume
Issue
ISSN
30
1
1860-4749
Citations 
PageRank 
References 
0
0.34
7
Authors
8
Name
Order
Citations
PageRank
Tao Jiang1153.31
Hou Rui2283.09
Jianbo Dong3463.65
Lin Chai481.92
Sally A. Mckee51928152.59
Bin Tian600.34
Lixin Zhang757145.96
SUN Ning-Hui8126897.37