NDLI: A distributed barrier synchronization solution in hardware for 2D-mesh multicomputers

Content Provider	IEEE Xplore Digital Library
Author	Delgado, M. Kofuji, S.
Copyright Year	1996
Description	Author affiliation: Lab. of Integrated Syst.-Polytech. Sch., Sao Paulo Univ., Brazil (Delgado, M.)
Abstract	This paper shows a new hardware solution for implementing barrier synchronization in 2D-mesh multicomputers. The synchronization process is executed in n-1 sequential stages where n is the largest dimension of the nxm mesh configuration. Each stage establishes simultaneous communication with maximum 4 nodes through additional wired-AND wires, allowing the propagation of information among the adjacent cells every time. This solution presents the following characteristics: (a) fast barrier synchronization, (b) allows that any subset of nodes participate in each barrier whenever sequential barriers are considered, and (c) allows simultaneous execution of multiple barriers whenever subsets of nodes belonging to non-overlapping rectangles are considered. The control logic and number of wired-AND wires are the same per node. Therefore, the system size is easily increased, being only limited by the expansion capacity of the 2D-mesh network. Analytical results indicate that the new approach should perform almost as well as efficient barrier synchronizers.
Starting Page	368
Ending Page	373
File Size	568877
Page Count	6
File Format	PDF
ISBN	0818675578
DOI	10.1109/HIPC.1996.565849
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-12-19
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hardware Wires Logic Laboratories Performance analysis Parallel algorithms Delay Data structures Costs Mechanical factors
Content Type	Text
Resource Type	Article

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