Refinements in Data Manipulation Method for Coarse Grained Reconfigurable Architectures

Takuya Kojima, Hideharu Amano

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

Abstract

Coarse-grained reconfigurable architectures (CGRAs) is one of the suitable devices for IoT (Internet of Things) and edge-computing because of their high energy efficiency and programmability. The CGRAs process a compute-intensive part of an application program (especially a loop part) more efficiently than general purpose processors. CMA (Cool Mega Array) is an energy-conscious CGRA with a task-level reconfiguration instead of a cycle-level one. However, the CMA faces some limitations related to data management because of the aggressive pursuit of power saving. In this paper, we introduce a new CMA architecture VPCMA2 to relax the constraints and to improve energy efficiency. Then, we implement it with a 65-nm process technology to evaluate a hardware overhead due to the improvement. According to the evaluation results, the new design does not influence its maximum operating frequency. Although new functionalities brought about 17% power overhead and 10% area overhead, a remarkable improvement of application mappability and data handling was achieved.

Original languageEnglish
Title of host publicationProceedings - 2019 14th International Symposium on Reconfigurable Communication-Centric Systems-on-Chip, ReCoSoC 2019
EditorsWilliam Fornaciari, David Novo, Leandro Soares Indrusiak
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages113-120
Number of pages8
ISBN (Electronic)9781728147703
DOIs
Publication statusPublished - 2019 Jul
Event14th International Symposium on Reconfigurable Communication-Centric Systems-on-Chip, ReCoSoC 2019 - York, United Kingdom
Duration: 2019 Jul 12019 Jul 3

Publication series

NameProceedings - 2019 14th International Symposium on Reconfigurable Communication-Centric Systems-on-Chip, ReCoSoC 2019

Conference

Conference14th International Symposium on Reconfigurable Communication-Centric Systems-on-Chip, ReCoSoC 2019
Country/TerritoryUnited Kingdom
CityYork
Period19/7/119/7/3

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

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