A Unified Scheduling Approach for Power and Resource Optimization With Multiple V-dd or/and V-th in High-Level Synthesis

作者：Hao, Cong^*; Wang, Nan; Yoshimura, Takeshi

来源：IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2017, 36(12): 2030-2043.

DOI：10.1109/TCAD.2017.2661830

• High-level synthesis (HLS)
• multiple supply voltage
• multiple threshold voltage
• power minimization
• scheduling

In this paper, we focus on the low-power scheduling problem with multiple threshold and/or supply voltage technologies in high-level synthesis. We propose a unified scheduling approach which is applicable to various optimization problems, including: 1) dynamic power and resource usage co-optimization; 2) leakage power optimization; and 3) dynamic power and leakage power co-optimization. To deal with different objectives with high flexibility, three problems are divided into two common subproblems including delay assignment and resource density variance minimization, then a vertex potential-based mobility allocation model is proposed to solve two subproblems simultaneously. Experimental results show that, for dynamic power and resource co-optimization, our scheduling approach produces optimum solutions for all six benchmarks with 15 groups of data; for leakage power optimization it also greatly excels the latest existing work, by 20% leakage power reduction and 52 times speedup. Besides, for dynamic and leakage power co-optimization, the Pareto solutions are studied.

• 出版日期2017-12
• 单位华东理工大学