Black-bus: A new data-transfer technique using local address on networks-on-chips

Kenichiro Anjo, Yutaka Yamada, Michihiro Koibuchi, Akiya Jouraku, Hideharu Amano

研究成果: Conference contribution

8 被引用数 (Scopus)

抄録

Network-on-a-Chip (NoC) has received attention as a high-performance interconnect, because traditional buses, which can't transfer more than one data-stream simultaneously, are more likely to become a bottleneck. Since some concepts of NoC have been proposed by simply borrowing the networking structure of parallel computers or System Area Networks (SANs), it tends to require complicated network interface logic in all the nodes. In this paper, we propose a novel data-transfer method called Black-Bus as an NoC. In Black-Bus, a local identifier (ID) is attached to each raw data as routing information. Unlike the traditional packet transfer, the local ID is transferred on dedicated wires attached to data lines to remove complicated packet generation procedure in a node. Only a small-sized local ID is required to specify routing tags to the destination, and intermediate routers change it to solve local ID conflicts between paths on a physical channel. The required local ID and routing table sizes for the Black-Bus router are evaluated with access trace data of NAS Parallel Benchmarks for on-chip multiprocessors, and JPEG codec as stream processing. Evaluation results show that most of the applications require only at most 3 bits for the local ID in a 16-node system. And the Black-Bus data-transfer reduces up to 75% of routing tags compared with global addressing scheme used in the traditional packet networks.

本文言語English
ホスト出版物のタイトルProceedings - 18th International Parallel and Distributed Processing Symposium, IPDPS 2004 (Abstracts and CD-ROM)
ページ115-122
ページ数8
出版ステータスPublished - 2004 12月 1
イベントProceedings - 18th International Parallel and Distributed Processing Symposium, IPDPS 2004 (Abstracts and CD-ROM) - Santa Fe, NM, United States
継続期間: 2004 4月 262004 4月 30

出版物シリーズ

名前Proceedings - International Parallel and Distributed Processing Symposium, IPDPS 2004 (Abstracts and CD-ROM)
18

Other

OtherProceedings - 18th International Parallel and Distributed Processing Symposium, IPDPS 2004 (Abstracts and CD-ROM)
国/地域United States
CitySanta Fe, NM
Period04/4/2604/4/30

ASJC Scopus subject areas

  • 工学(全般)

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