Response matrix parallel processing implementation method based on integral variable segmentation method

A response matrix and variational node block technology, applied in the field of information processing, can solve problems such as large time overhead, and achieve the effect of reducing computing time overhead
CN110287450AActive Publication Date: 2019-09-27SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2019-09-27

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Abstract

The invention discloses a response matrix parallel processing implementation method based on an integral variable block method, which comprises the following steps of: constructing different response matrix sets by using a plurality of computing cores in a parallel manner by using the integral variable block method and having natural decoupling property by using the construction among the different response matrix sets; secondly, dividing a reactor core into a corresponding number of non-overlapped sub-regions according to a given calculation core number for a transport equation solving part in an integral variable segmentation method, and performing Gauss-Seidel method solution according to a neutron balance relationship in the block and a neutron flow continuity relationship on the surface of the block to obtain a converged neutron flux density expansion moment and an incident neutron flow density expansion moment. According to the invention, by using an information transfer interface protocol (MPI) parallel method, a parallel computing function of several computing cores or even dozens of computing cores in a Windows or Linux system can be realized, and the computing time cost of an original computing case is shortened by several times or even dozens of times.
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Description

technical field

[0001] The invention relates to a technology in the field of information processing, in particular to a method for implementing parallel processing of response matrices based on an integral variational block method. Background technique

[0002] The variational nodal method was first proposed by Professor E.E. Lewis of Northwestern University. The variational nodal method takes the second-order even-parity neutron diffusion equation as the starting point, and the equation takes the form of an elliptic equation, which is beneficial to the Galerkin method. application, and is more suitable for the spatial discretization of the finite element method.

[0003] However, when the variational block method increases the angle order, the number of degrees of freedom of the problem solving domain will be doubled on the basis of spatial discreteness, and the calculation cost of the variational block method will be significantly increased. SUMMARY OF THE INVENTION [...

Claims

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