A fragmentation aware High-Level Synthesis flow for low power heterogenous datapaths

Alberto A. Del Barrio*, Seda Ogrenci Memik, María C. Molina, José M. Mendías, Román Hermida

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


State of the art multi-objective synthesis flows use to degrade some parameters of the circuit while trying to optimize the target one. This paper addresses the power reduction problem in heterogeneous datapaths, while keeping a similar area and execution time with respect to the baseline case. Our specific approach first diminishes the area via fragmentation techniques and afterwards it gives it back with the introduction of Low Power Functional Units (LP-FUs) that occupy more area than their corresponding non-low power counterparts. Furthermore, a fragmentation algorithm more suitable for power reduction is proposed. Results show that it is possible to diminish power by 27% on average (49% in the best case).

Original languageEnglish (US)
Pages (from-to)119-130
Number of pages12
JournalIntegration, the VLSI Journal
Issue number2
StatePublished - Mar 1 2013


  • Area
  • High-Level Synthesis
  • Low power

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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