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Synthesis Algorithm for Application-Specific Homogeneous Processor Networks

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4 Author(s)
Cong, J. ; Comput. Sci. Dept., Univ. of California, Los Angeles, CA, USA ; Gururaj, K. ; Han, G. ; Wei Jiang

The application specific multiprocessor system-on-a-chip is a promising design alternative because of its high degree of flexibility, short development time, and potentially high performance attributed to application specific optimizations. However, designing an optimal application specific multiprocessor system is still challenging because there are a number of important metrics, such as throughput, latency, and resource usage, which need to be explored and optimized. This paper addresses the problem of synthesizing an application-specific multiprocessor system for stream-oriented embedded applications to minimize system latency under the throughput constraint. We employ a novel framework for this problem, similar to that of technology mapping in the logic synthesis domain, and develop a set of efficient algorithms, including labeling and clustering for efficient generation of the multiprocessor architecture with application specific optimized latency. Specifically, the result of our algorithm is latency optimal for directed acyclic task graphs. Application of our approach to the Motion JPEG example on Xilinx's Virtex II Pro platform FPGA shows interesting design tradeoffs.

Published in:

Very Large Scale Integration (VLSI) Systems, IEEE Transactions on  (Volume:17 ,  Issue: 9 )