Expandable Chip Stacking Method for Many-core Architectures Consisting of Tiny Chips

Hiroshi Nakahara; Tomoya Ozaki; Hiroki Matsutani; Michihiro Koibuchi; Hideharu Amano

doi:10.1109/MCSoC.2015.26

Expandable Chip Stacking Method for Many-core Architectures Consisting of Tiny Chips

Hiroshi Nakahara, Tomoya Ozaki, Hiroki Matsutani, Michihiro Koibuchi, Hideharu Amano

Department of Information and Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

The increase of recent non-recurrent engineering cost (design, mask and test cost) have made large System-on-Chip (SoC) difficult to develop especially with advanced technology. We radically explore an approach for cheap and flexible chip stacking. To connect a large number of small chips for building a large scale system, a novel chip stacking method called the staggered stacking is proposed that enables the system to be extended to x and y dimensions, not only to z dimension. For such flexible inter-chip communication, we use Inductive coupling ThruChip Interface (TCI). Here, a novel chip staking layout, and its deadlock-free routing design for the case using multi-core chips are shown. The network with 256 nodes formed by the proposed stacking improves the latency of 2D mesh by 13.8% and the performance of NAS Parallel Benchmarks by 6.7% on average compared to that of 2D mesh.

Original language	English
Title of host publication	Proceedings - IEEE 9th International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	41-48
Number of pages	8
ISBN (Print)	9781479986699
DOIs	https://doi.org/10.1109/MCSoC.2015.26
Publication status	Published - 2015 Nov 11
Event	9th IEEE International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2015 - Turin, Italy Duration: 2015 Sep 23 → 2015 Sep 25

Other

Other	9th IEEE International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2015
Country/Territory	Italy
City	Turin
Period	15/9/23 → 15/9/25

Keywords

Inductive coupling interconnect
Interconnection network

ASJC Scopus subject areas

Hardware and Architecture

Access to Document

10.1109/MCSoC.2015.26

Cite this

Nakahara, H., Ozaki, T., Matsutani, H., Koibuchi, M., & Amano, H. (2015). Expandable Chip Stacking Method for Many-core Architectures Consisting of Tiny Chips. In Proceedings - IEEE 9th International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2015 (pp. 41-48). [7328185] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MCSoC.2015.26

Expandable Chip Stacking Method for Many-core Architectures Consisting of Tiny Chips. / Nakahara, Hiroshi; Ozaki, Tomoya; Matsutani, Hiroki; Koibuchi, Michihiro; Amano, Hideharu.

Proceedings - IEEE 9th International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 41-48 7328185.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nakahara, H, Ozaki, T, Matsutani, H, Koibuchi, M & Amano, H 2015, Expandable Chip Stacking Method for Many-core Architectures Consisting of Tiny Chips. in Proceedings - IEEE 9th International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2015., 7328185, Institute of Electrical and Electronics Engineers Inc., pp. 41-48, 9th IEEE International Symposium on Embedded Multicore/Manycore SoCs, MCSoC 2015, Turin, Italy, 15/9/23. https://doi.org/10.1109/MCSoC.2015.26

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AB - The increase of recent non-recurrent engineering cost (design, mask and test cost) have made large System-on-Chip (SoC) difficult to develop especially with advanced technology. We radically explore an approach for cheap and flexible chip stacking. To connect a large number of small chips for building a large scale system, a novel chip stacking method called the staggered stacking is proposed that enables the system to be extended to x and y dimensions, not only to z dimension. For such flexible inter-chip communication, we use Inductive coupling ThruChip Interface (TCI). Here, a novel chip staking layout, and its deadlock-free routing design for the case using multi-core chips are shown. The network with 256 nodes formed by the proposed stacking improves the latency of 2D mesh by 13.8% and the performance of NAS Parallel Benchmarks by 6.7% on average compared to that of 2D mesh.

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Expandable Chip Stacking Method for Many-core Architectures Consisting of Tiny Chips

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Keywords

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