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Asynchronous transportation simulation method and system for particle transportation are decomposition parallel calculation

A technology of area decomposition and parallel computing, which is applied in the field of Monte Carlo particle transport simulation, can solve the problems that asynchronous communication algorithms cannot be used for particle transport simulation, and achieve the effects of reducing process waiting time, avoiding global communication, and high parallel efficiency

Inactive Publication Date: 2018-08-03
INST OF APPLIED PHYSICS & COMPUTATIONAL MATHEMATICS
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Problems solved by technology

Therefore the end condition of this asynchronous communication algorithm cannot be used for particle transport simulations

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  • Asynchronous transportation simulation method and system for particle transportation are decomposition parallel calculation

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Embodiment Construction

[0022] Embodiments of the present application provide an asynchronous transport simulation method and system for parallel calculation of Monte Carlo particle transport domain decomposition.

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0024] figure 1 It is a schematic flow chart of an asynchronous transport simulation method for Monte Carlo particle transport domain decomposition...

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Abstract

The invention discloses an asynchronous transportation simulation method and system for particle transportation are decomposition parallel calculation. The method comprises the following steps of: dividing a combinatorial geometric area into a plurality of subareas by a main process by adoption of a division algorithm for multi-division nodes; distributing a simulated subarea and a particle sourcefor each area process by the main process; obtaining particles from the particle source by the area process, so as to simulate particle transportation; sending the particles moving to boundary of thesubarea to another area processes by the area process, or receiving the particles sent by other area processes, and updating a particle migration record of the subarea according to the quantity of particles transmitted or received between the area process and the other area processes; when no to-be-simulated particles exist in the subarea, sending the particle migration record of the subarea to the main process by the area process; and receiving and checking the particle migration record of each area process by the main process, and judging whether to end the simulation or not. The method iscapable of avoiding global communication, decreasing the process waiting time of the whole algorithm and ensuring relatively high parallel efficiency.

Description

technical field [0001] The present application relates to the technical field of Monte Carlo particle transport simulation, in particular to an asynchronous transport simulation method and system for Monte Carlo particle transport domain decomposition parallel calculation. Background technique [0002] In nuclear reactor design, criticality safety analysis and shielding calculation, particle (neutron and photon) transport solution is the core of numerical simulation calculation. Particle transport theory is a theory that studies the process and law of microscopic particles (neutrons, photons, etc.) moving in a medium (including generation, migration, nuclear reaction, etc.). Monte Carlo (MC) particle transport method, also known as stochastic simulation method or statistical experiment method, is a calculation method for stochastic simulation of particle behavior on a computer. The Monte Carlo method is a commonly used numerical simulation method in particle transport theor...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 李刚张宝印邓力莫则尧上官丹骅李瑞付元光马彦艾志玮程汤培史敦福张玲玉
Owner INST OF APPLIED PHYSICS & COMPUTATIONAL MATHEMATICS
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