| 单轴散生竹地下根茎并行模拟仿真研究 |
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| 引用本文： | 张云伟,喻 勇,王大龙,周 旋,王彦钧.单轴散生竹地下根茎并行模拟仿真研究[J].农业机械学报,2014,45(4):271-275. |
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| 作者姓名： | 张云伟 喻 勇 王大龙 周 旋 王彦钧 |
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| 作者单位： | 昆明理工大学;昆明理工大学;昆明理工大学;昆明理工大学;昆明理工大学 |
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| 基金项目： | 国家自然科学基金资助项目(31060118)和昆明理工大学校人才培养资助项目(2010-07) |
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| 摘 要： | 针对竹林地下根茎模拟仿真计算强度高、数据量大,在算法实现中采用基于单路处理器、串行计算的构架难以满足性能要求的问题,提出一种基于网络机群的多节点并行模拟仿真实现机制,构建了单轴散生竹地下根茎并行模拟仿真平台,主要由建模节点、任务管理节点、图形节点和网络交换机组成。以SimRoot模型为基础建立单轴散生竹地下根茎生长模型,通过实验观察获取几何构型参数及生长参数。采用功能分解法对根茎生长建模计算进行任务分割,建立了相应的任务调度管理模式,设计了多节点并行生长建模机制。以金竹为例开展多节点并行仿真实验,实验结果表明基于网络机群的多节点并行模拟仿真在降低内存消耗、缩短仿真时间方面效果明显,对于较大规模的散生竹林地下根茎模拟仿真具有较好的适应性。
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| 关 键 词： | 单轴散生竹 地下根茎 并行仿真 生长建模 网络计算机群 |
| 收稿时间： | 2013/10/9 0:00:00 |
Parallel Simulation of Uniaxial Scattered Bamboo Root System |
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| Zhang Yunwei,Yu Yong,Wang Dalong,Zhou Xuan and Wang Yanjun.Parallel Simulation of Uniaxial Scattered Bamboo Root System[J].Transactions of the Chinese Society of Agricultural Machinery,2014,45(4):271-275. |
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| Authors: | Zhang Yunwei Yu Yong Wang Dalong Zhou Xuan and Wang Yanjun |
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| Institution: | Kunming University of Science and Technology;Kunming University of Science and Technology;Kunming University of Science and Technology;Kunming University of Science and Technology;Kunming University of Science and Technology |
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| Abstract: | During the simulation of bamboo rhizomes, there are some faced difficulties caused by high strength of calculation and large amount of data. Therefore, it is hard to satisfy the simulation performance requirements by using traditional architecture based on single processor and serial computing. In order to solve this problem, a multi-nodes parallel simulation mechanism was proposed based on network compute cluster, and the parallel simulation platform was built for uniaxial scattered bamboo rhizomes. The parallel simulation platform was composed of modeling node, task managing node, graphics node and network switch in hardware. The growth model of uniaxial scattered bamboo rhizomes was constructed on the basis of SimRoot model, whose geometric architecture parameters and growth parameters can be obtained through experimental observation. Function decomposition method was used for dividing integral task of growth modeling into fragments, and the corresponding task scheduling mode was established. Then, multi-nodes parallel growth modeling mechanism was designed. Finally, as an example, multi-nodes parallel simulation experiments for Phyllostachys parvifolia were executed. The experimental results show that multi-nodes parallel simulation based on network computer cluster appears to have obvious efficiency in reducing memory demand and simulation time, which has good adaptability to the large-scale simulation of scattered bamboo rhizomes. |
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| Keywords: | Uniaxial scattered bamboo Underground rhizome Parallel simulation Growth modeling Network computer cluster |
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