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Body distribution parallel method for eliminating data race in particle simulation algorithm paralleling

A data competition and particle technology, applied in the fields of electrical digital data processing, special data processing applications, computing, etc., can solve the problems of low parallel efficiency and achieve the effect of improving efficiency

Active Publication Date: 2016-12-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0008] In view of the above-mentioned problems or deficiencies, in order to solve the problem of low parallel efficiency due to data competition in the parallel process of three-dimensional particle simulation programs, the present invention provides a volume allocation parallel method that removes data competition in parallel particle simulation algorithms

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  • Body distribution parallel method for eliminating data race in particle simulation algorithm paralleling
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  • Body distribution parallel method for eliminating data race in particle simulation algorithm paralleling

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0026] Assuming nMax=1, then Ns=3, Nc=27.

[0027] Firstly, take the continuous grid set whose length, width and height are Ns=3 as the unit, number them 1, 2, ..., 27 in sequence, and repeat this until all the grids are traversed. Such as Figure 4 shown.

[0028] Then extract the grids with the same number and put them into a collection, and finally 27 collections can be generated, such as Figure 5 shown. All grids numbered 1 form the first set, all grids numbered 2 form the second set, and so on until all grids numbered 27 form the 27th set.

[0029] In each of these 27 collections, all the grids in it have no data race, so the collection can be directly parallelized. Execute serially between the last 27 collections.

[0030] In summary, the present invention eliminates the data competition in the parallelization of the particle simu...

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Abstract

The invention belongs to the technical field of particle simulation method paralleling, and particularly relates to a body distribution parallel method for eliminating data race in particle simulation algorithm paralleling. The method includes: setting a data race influence range Nc=NsXNsXNs of a network in a three-dimensional particle simulation algorithm, wherein the Ns=2XnMax+1, and the nMax is the maximum value of the data race influence range of the network in the three-dimensional particle simulation algorithm; newly adding a serial number for eliminating a data race method of a subsequent application on all the grids, wherein the numbering rule includes that using grid sets having the length, the width and the height of Ns number as units, successively numbering the units as 1-Ns, circulating this manner till all the grids are traversed; extracting grids with the same serial numbers to be put in a set, and generating Nc sets, wherein all the grids of each set of the Nc sets does not exist data race; and finally serializing the Nc sets. The efficiency of particle simulation algorithm paralleling can be improved through elimination of data race.

Description

technical field [0001] The invention belongs to the field of particle simulation method parallel technology. In the process of realizing the three-dimensional particle simulation algorithm and its parallelization through computer programs, it involves a parallel method of how to remove data competition in the parallel process of the three-dimensional algorithm, specifically a volume allocation to remove data competition in the parallel process of the three-dimensional particle simulation algorithm Parallel method. Background technique [0002] In fields involving the interaction between fields and charged particles, such as gas discharge and vacuum electronic devices, the charged particles move under the action of the field, thereby changing the distribution of charged particles in space. The state of the particle in turn affects the field distribution in space. In the above-mentioned interaction process between the field and charged particles, neither the structure nor th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 黄桃金晓林谷晓梁朱小芳李斌胡玉禄胡权徐立杨中海贺国贤
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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