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Design and Implementation of an On-Chip Permutation Network for Multiprocessor System-On-Chip

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4 Author(s)
Phi-Hung Pham ; School of Electrical Engineering, Korea University, Seoul, South Korea ; Junyoung Song ; Jongsun Park ; Chulwoo Kim

This paper presents the silicon-proven design of a novel on-chip network to support guaranteed traffic permutation in multiprocessor system-on-chip applications. The proposed network employs a pipelined circuit-switching approach combined with a dynamic path-setup scheme under a multistage network topology. The dynamic path-setup scheme enables runtime path arrangement for arbitrary traffic permutations. The circuit-switching approach offers a guarantee of permuted data and its compact overhead enables the benefit of stacking multiple networks. A 0.13-μ m CMOS test-chip validates the feasibility and efficiency of the proposed design. Experimental results show that the proposed on-chip network achieves 1.9× to 8.2× reduction of silicon overhead compared to other design approaches.

Published in:

IEEE Transactions on Very Large Scale Integration (VLSI) Systems  (Volume:21 ,  Issue: 1 )