IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Cooperative communication based barrier synchronization in on-chip mesh architectures
Xiaowen ChenZhonghai LuAxel JantschShuming ChenHai Liu
Author information
JOURNALS FREE ACCESS

2011 Volume 8 Issue 22 Pages 1856-1862

Details
Abstract

We propose cooperative communication as a means to enable efficient and scalable barrier synchronization on mesh-based many-core architectures. Our approach is different from but orthogonal to conventional algorithm-based optimizations. It relies on collaborating routers to provide efficient gather and multicast communication. In conjunction with a master-slave algorithm, it exploits the mesh regularity to achieve efficiency. The gather and multicast functions have been implemented in our router. Synthesis results suggest marginal area overhead. With synthetic and benchmark experiments, we show that our approach significantly reduces synchronization completion time and increases speedup.

Information related to the author
© 2011 by The Institute of Electronics, Information and Communication Engineers
Next article
feedback
Top