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Adapting Memory Hie...
Adapting Memory Hierarchies for Emerging Datacenter Interconnects
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- Jiang, Tao (författare)
- Chinese Academy of Sciences
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- Hou, Rui (författare)
- Chinese Academy of Sciences
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- Dong, Jianbo (författare)
- Chinese Academy of Sciences
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- Chai, L. (författare)
- Chinese Academy of Sciences
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- McKee, Sally A, 1963 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Tian, B. (författare)
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- Zhang, L. (författare)
- Chinese Academy of Sciences
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- Sun, N. H. (författare)
- Chinese Academy of Sciences
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(creator_code:org_t)
- 2015-01-21
- 2015
- Engelska.
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Ingår i: Journal of Computer Science and Technology. - : Springer Science and Business Media LLC. - 1860-4749 .- 1000-9000. ; 30:1, s. 97-109
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences (hsv//eng)
Nyckelord
- memory hierarchy
- time shared memory
- datacenter network
- high-speed interconnect
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