A Unified Scheduling Approach for Power and Resource Optimization with Multiple Vdd or/and Vth in High-Level Synthesis

Cong Hao, Nan Wang, Takeshi Yoshimura

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


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.

Original languageEnglish
Article number7837574
Pages (from-to)2030-2043
Number of pages14
JournalIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Issue number12
Publication statusPublished - 2017 Dec 1


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

ASJC Scopus subject areas

  • Software
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering


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