Circulation network maximum flow determination method and system based on preprocessing

Abstract

The invention relates to the communication network capacity planning field, and especially relates to a circulation network maximum flow determination method and system based on preprocessing; the method comprises the following steps: using a component condensed point tree algorithm to build a component condensed point tree of a network structure; searching a first node and a second node corresponding to a source node and a target node of the network structure, calculating to obtain a target path between the first node and the second node and nodes on the target path; parallel computing and caching the maximum flow between every two adjacent nodes in the network structure, solving the minimum value of all maximum flows so as to obtain the maximum flow value, and calculating the network capacity between the source node and the target node according to the maximum flow value, thus reducing the complexity of the preprocessing method, well fusing with the parallel computing for solving themaximum flow, improving the maximum flow solving and network capacity obtaining speed, and solving the problems of an existing preprocessing method is high in complexity and poor in fusion with the parallel computing, thus affecting the maximum flow computing effect and network optimization effect.

Description

technical field [0001] The invention relates to the field of communication network capacity planning, in particular to a method and system for determining the maximum flow of a circulation network based on preprocessing. Background technique [0002] The maximum flow problem, that is, how to calculate the maximum flow of a circulation network, is an important basic problem in graph theory. The maximum flow acceleration in large-scale networks is one of the hotspots in current graph theory research. In addition to the optimization applied to the actual network, many important application problems (such as image processing, community discovery in social networks, resource scheduling in various complex systems), if you can find the connection with the maximum flow and its variants, you can So that these application problems can be solved very effectively. In addition, the maximum flow can also assist in solving some important basic theoretical problems, such as important linea...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for determining the maximum flow of a distribution network based on preprocessing, which is used to solve the problem of the limitation of the maximum flow calculation effect caused by the high complexity of the existing preprocessing method and the poor integration of parallel computing, which affects the network optimization effect The problem

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