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Route packets, not wires: on-chip inteconnection networks

Published: 22 June 2001 Publication History

Abstract

Using on-chip interconnection networks in place of ad-hoc glo-bal wiring structures the top level wires on a chip and facilitates modular design. With this approach, system modules (processors, memories, peripherals, etc...) communicate by sending packets to one another over the network. The structured network wiring gives well-controlled electrical parameters that eliminate timing iterations and enable the use of high-performance circuits to reduce latency and increase bandwidth. The area overhead required to implement an on-chip network is modest, we estimate 6.6%. This paper introduces the concept of on-chip networks, sketches a simple network, and discusses some challenges in the architecture and design of these networks.

References

[1]
"The CoreConnect TM Bus Architecture" IBM, 1999, http://www.chips.ibm.com/products/coreconnect/docs/crcon_wp.pdf.
[2]
DALLY,WILLIAM J., "Virtual Channel Flow Control." IEEE Transactions on Parallel and Distributed Systems, March 1992, pp. 194-205.
[3]
DALLY,WILLIAM J., AND POULTON,JOHN W., Digital Systems Engineering, Cambridge University Press, 1998.
[4]
MIZUNO,MASAYUKI AND DALLY,WILLIAM J., "Elastic Interconnects: Repeater-Inserted Long Wiring Capable of Compressing and Decompressing Data," 2001 ISSCC, February, 2001, pp. 346-347.
[5]
"Open Core Protocol TM Data Sheet" Sonics, Inc., http://www.sonicsinc.com/Documents/OpenCoreProtocol_DS.pdf.
[6]
PEH,LI-SHIUAN AND DALLY,WILLIAM J., "A Delay Model and Speculative Architecture for Pipelined Routers." Proceedings of the 7th International Symposium on High-Performance Computer Architecture, Jan. 2001, pp. 255-266.
[7]
SEITZ,CHARLES, "Let's Route Packets Instead of Wires." Advanced Research in VLSI: Proceedings of the Sixth MIT Conference, 1990, pp. 133-138.
[8]
VSI Alliance, http://www.vsi.org.

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cover image ACM Conferences
DAC '01: Proceedings of the 38th annual Design Automation Conference
June 2001
863 pages
ISBN:1581132972
DOI:10.1145/378239
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 22 June 2001

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  • (2024)Scalability Limitations of Processing-in-Memory using Real System EvaluationsProceedings of the ACM on Measurement and Analysis of Computing Systems10.1145/36390468:1(1-28)Online publication date: 21-Feb-2024
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