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Distributed Synchronization for Message-Passing Based Embedded Multiprocessors
Hao XIAO Ning WU Fen GE Guanyu ZHU Lei ZHOU
IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/02/01
Online ISSN: 1745-1361
Type of Manuscript: Special Section LETTER (Special Section on Reconfigurable Systems)
embedded multiprocessors, synchronization, message-passing, application-specific instruction-set processor,
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This paper presents a synchronization mechanism to effectively implement the lock and barrier protocols in a decentralized manner through explicit message passing. In the proposed solution, a simple and efficient synchronization control mechanism is proposed to support queued synchronization without contention. By using state-of-the-art Application-Specific Instruction-set Processor (ASIP) technology, we embed the synchronization functionality into a baseline processor, making the proposed mechanism feature ultra-low overhead. Experimental results show the proposed synchronization achieves ultra-low latency and almost ideal scalability when the number of processors increases.