A parallel transmission method of data on a multiprocessor network with an extended cube structure

Abstract

The invention discloses a parallel transmission method of data on a multiprocessor network with an extended cube structure. When a processor is designated as a source processor, the invention can construct a group of edge independent spanning trees with the processor as a center in parallel, so that 2n-1 paths where the edges do not intersect exist between the processors and any other processors.Data can be decomposed to the 2n-1 paths without interfering with each other. According to any given vertex, the method can construct 2n-1 edge-independent spanning trees in parallel. There are 2n-1 paths whose sides do not intersect between the root vertex and any other vertex. Each tree can be constructed independently. The method has better topology property, can greatly reduce hardware cost and communication cost, improve the balance of communication cost, and has a wide market prospect in popularization of an interconnection network structure.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a data parallel transmission method on an extended cube structure multiprocessor network. Background technique [0002] Augmented Cube structure multiprocessor network is an important variant of hypercube network, which has attracted extensive attention of scholars. n-dimensional extended cube AQ n has 2 n Processors are also (2n-1)-edge-connected and (2n-1)-vertex-connected. 1D Extended Cube AQ 1 is a complete graph with two vertices. n-dimensional extended cube AQ n (n≥2) is composed of two n-1-dimensional extended cubes AQ n-1 connected. These two AQs n-1 Expressed as and and Add 2×2 between n-1 The borders are as follows: Order and Vertex a=0a in n-1 a n-1 ...a 1 and Vertex b=1b in n-1 b n-2 ...b 2 Adjacent if and only if for any i, 1≤i≤n-1, a i =b i or for any i, 1≤i≤n-1, [0003] Using AQ n In a multi-processor network,...

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Problems solved by technology

The existing construction method of independent spanning tree on the extended cube structure multiprocessor network is a recursive construction method, the corresponding algorithm time complexity is high and the maximum height of a set of trees constructed by this method is also high

[0004] Existing AQs about Expanding Cubes n The above construction method of independent spanning tree can only solve the serial construction of 2n-1 edge independent spanning trees. This method has the disadvantage of interdependence between the structures of trees and trees, which makes the construction process of trees complicated and low in efficiency.

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