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Parallel algorithms for gossiping by mail. (English) Zbl 0696.68048
Summary: We consider the following communication problem: Each vertex of an undirected graph possesses a unique piece of information which must be sent to every other vertex in the graph. The mode of communication will be one-way, point-to-point communication (i.e., one-way mail) in which one vertex may tell another everything it knows in a single transmission. We describe nearly optimal parallel algorithms for disseminating the messages in certain prominent families of graphs (e.g., trees and hypercubes), and consider the complexity of the problem for general graphs.

68Q25 Analysis of algorithms and problem complexity
68N25 Theory of operating systems
68R10 Graph theory (including graph drawing) in computer science
Full Text: DOI
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