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Citation: HOU Ji-Xuan, SI Li-Ming. Optimization Theory for Neighbor List Al rithmin Fluid System Simulation[J]. Acta Physico-Chimica Sinica, ;2009, 25(03): 430-434. doi: 10.3866/PKU.WHXB20090306 shu

Optimization Theory for Neighbor List Al rithmin Fluid System Simulation

HOU Ji-Xuan ,
SI Li-Ming ^,

1.
Laboratoire de Physique, UMR 5182 CNRS, Ecole Normale Superieure de Lyon, 46, Allee d'Italie F-69364 Lyon Cedex 07, France; Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, P. R. China

Corresponding author: SI Li-Ming, siliming100@yahoo.com.cn
Received Date: 25 August 2008
Available Online: 10 December 2008

The efficiency of the neighbor list al rithm in molecular dynamics simulation depends on the parameters chosen. By using the free-particle approximation and the diffusion approximation we can calculate the central processing unit (CPU) time that is used for the simulation. The free-particle approximation can be used in the case of low density or a small skin radius while the diffusion approximation can be used in the case of high density or a large skin radius. Combining the results of these two approximations optimal parameters may be selected and thus CPU time can be saved. Our result coincides with the result of the simulation based on Lennard-Jones fluid systems.
- Computational techniques,
- Molecular dynamics calculation,
- Fluid system
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