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Yusuke Koizumi , Keio University, Yokohama
Noriyuki Miura , Kobe University, Kobe
Eiichi Sasaki , Keio University, Yokohama
Yasuhiro Take , Keio University, Yokohama
Hiroki Matsutani , Keio University, Yokohama
Tadahiro Kuroda , Keio University, Yokohama
Hideharu Amano , Keio University, Yokohama
Ryuichi Sakamoto , Tokyo University of Agri. and Tech., Fuchu
Mitaro Namiki , Tokyo University of Agri. and Tech., Fuchu
Kimiyoshi Usami , Shibaura Institute of Technology, Toyosu
Masaaki Kondo , The University of Electro-Communications, Chofu
Hiroshi Nakamura , The University of Tokyo, Hongo
ABSTRACT
A scalable heterogeneous multi-core processor is developed. 3D heterogeneous chip stacking of a general-purpose CPU and reconfigurable multicore accelerators enables various trade-off between performance and energy consumption. The stacked chips interconnect through a scalable 3D Network on Chip (NoC). By simply changing the number of stacked accelerator chips, processor parallelism can be widely scaled. No design change is needed, and hence no additional Non-Recurring Engineering (NRE) cost is required. An inductive-coupling ThruChip Interface (TCI) is applied to stacked-chip communications, forming a low-cost and robust high-speed 3D NoC. A prototype system Cube-1 has been developed with 65nm CMOS test chips. Successful system operations including 10-hours continuous Linux OS operation are confirmed. Simple filters and a streaming application were implemented on Cube-1 and performance acceleration up to about three times was achieved.
CITATION
Yusuke Koizumi, Noriyuki Miura, Eiichi Sasaki, Yasuhiro Take, Hiroki Matsutani, Tadahiro Kuroda, Hideharu Amano, Ryuichi Sakamoto, Mitaro Namiki, Kimiyoshi Usami, Masaaki Kondo, Hiroshi Nakamura, "A Scalable 3D Heterogeneous Multi-Core Processor with Inductive-Coupling ThruChip Interface", IEEE Micro, , no. 1, pp. 1, PrePrints PrePrints, doi:10.1109/MM.2013.133
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