Electromagnetic Analysis Method Based on Ternary Parallel Multilayer Fast Multipole

An electromagnetic analysis and multipole technology, applied in the field of computational electromagnetics, which can solve problems such as the limitation of the number of processes and the destruction of the integrity of the parent-child box relationship.
CN109858159BActive Publication Date: 2020-10-27BEIJING INSTITUTE OF TECHNOLOGYGY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2020-10-27

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Abstract

The invention discloses an electromagnetic analysis method based on ternary parallel multilevel fast multipole method. A multipole layer structure is divided into a high level, a middle level and a low level discretization is carried out from top to bottom in a plane wave parallel mode, a hierarchical structure parallel mode and a box parallel mode, matrix-vector multiplication is realized according to hierarchical aggregation, divergence and transfer process of multilevel fast multipole method, and a surface integral equation is iteratively solved to obtain metal target surface equivalent current, and then the far-field scattering field is solved by the equivalent current.
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Description

technical field

[0001] The invention belongs to the technical field of computational electromagnetics, and in particular relates to an electromagnetic analysis method based on ternary parallel multi-layer fast multipoles. Background technique

[0002] Multi-layer fast multipole technology is an efficient and fast algorithm, which divides the target into multi-layer boxes, and realizes matrix-vector multiplication through aggregation, transfer, and divergence in a grouped and hierarchical manner. Due to the complexity of the algorithm, how to efficiently parallelize it has always been a frontier topic in the field of computational electromagnetics. At present, there are mainly two successful design schemes for multi-layer fast multipole parallelism in the world:

[0003] One method is the hybrid parallel mode, that is, at the lower level where the box size is smaller and the number is larger, the parallelism is performed according to the box, and at the higher level, the cal...

Claims

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