A method and system for determining the maximum flow of a distribution network based on preprocessing

Abstract

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. The method constructs the component contraction tree of the network structure through the component contraction tree algorithm; finds the first node and the second node corresponding to the source node and the target node of the network structure, and calculates the target between the first node and the second node The nodes on the path and the target path; calculate and cache the maximum flow in the network structure between each adjacent two nodes on the target path in parallel, calculate the minimum value of all the maximum flows to obtain the maximum flow value, and calculate the source according to the maximum flow value The network capacity between the node and the target node reduces the complexity of the preprocessing method, and better integrates parallel computing to solve the maximum flow, improves the speed of the maximum flow solution and network capacity acquisition, and solves the problem of existing preprocessing The high complexity of the method and the poor integration of parallel computing lead to the limitation of the maximum flow computing effect and affect the 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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