DOSAGE: Generating Domain-Specific Accelerators for Resource-Constrained Computing

Ankur Limaye, Tosiron Adegbija

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Integrating low-overhead domain-specific accelerators with low-energy general-purpose processors can improve the processors' performance efficiency in resource-constrained systems (e.g., embedded systems). However, current function-based approaches for designing domain-specific accelerators require substantial programmer efforts for hardware/software partitioning and program modifications to access the best available hardware accelerators. This paper presents DOSAGE, an LLVM compiler-based methodology to generate domain-specific accelerators for resource-constrained computing systems. Given a set of applications, DOSAGE automatically identifies and ranks the recurrent and similar code blocks that would benefit the most from hardware acceleration, based on the code blocks' composition. We illustrate the benefits of the proposed approach using a case study that involves generating domain-specific accelerators for a diverse set of healthcare applications and evaluate the accelerators via FPGA-based prototyping. Compared to a base low-resource RISC-V processor, DOSAGE accelerators improved the system's performance and energy by 24.85% and 8.54%, respectively. Furthermore, compared to a state-of-the-art function-based accelerator generation approach, DOSAGE eliminated the function-level granularity constraint of the generation process and reduced the number of required accelerators - and, in effect, the interfacing overhead - by 33.33%, while achieving equal or better program coverage and performance/energy results.

Original languageEnglish (US)
Title of host publication2021 IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665439220
DOIs
StatePublished - Jul 26 2021
Event2021 IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2021 - Boston, United States
Duration: Jul 26 2021Jul 28 2021

Publication series

NameProceedings of the International Symposium on Low Power Electronics and Design
Volume2021-July
ISSN (Print)1533-4678

Conference

Conference2021 IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2021
Country/TerritoryUnited States
CityBoston
Period7/26/217/28/21

Keywords

  • Domain-specific accelerators
  • embedded systems
  • hardware software co-design
  • low-energy
  • resource-constrained computing

ASJC Scopus subject areas

  • Engineering(all)

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