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A dynamic programming based algorithm for post-scheduling frequency assignment in energy-efficient high-level synthesis

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3 Author(s)
Song Chen ; Graduate School of Information, Production, and Systems, Waseda University, Hibikino 2-7, Wakamatsu-ku, Kitakyushu, 808-0135, Japan ; Yuan Yao ; Takeshi Yoshimura

Scaling frequency and voltage in a coordinated manner is a promising way to reduce energy and power. we explore the use of dynamic frequency clocking within the datapath and datapath scheduling algorithms that can be incorporated into a datapath synthesis tool. Given a schedule, we propose a practical optimal frequency assignment algorithm based on dynamic programming. The algorithm run very fast in practice. Though the algorithm theoretically run in a pseudo polynomial time O(ncT2ex), nc is the number of control steps and Tex is the difference between the timing constraint and the critical path delay.

Published in:

Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on

Date of Conference:

1-4 Nov. 2010