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Self-Organization of the Nearest Neighborhoods of cluster system Elements:Computer Simulation

材料科学与工程（中英文A版） 2022年第2期12卷 67-72页

作者： Alexander Herega Research and Production Center Odessa 65000Ukraine

The percolation fields constructed around the elements of a cluster system in the phase spaces of properties are *** is shown that such neighborhoods significantly increase the number of structure parameters of the system under study,expanding the possibilities of analytical *** study the structure and properties of such systems in the proposed model,a three-dimensional continuum percolation problem with interacting elements is *** dependences of the structure and properties of clusters on the parameters of the generation processes of the cluster system are studied,and analytical dependences are obtained.

关键词： Nearest neighborhood cluster system interacting elements self-organizing criticality percolation problem

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cluster segmentation algorithm based on the Vicsek with static summoning points

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Journal of systems Engineering and Electronics 2021年第3期32卷 607-618页

作者： MA Yan MAO Zhaoyong QIN Jian MENG Xiangyao XIAO Yujie CHEN Jianhua FENG Wei Key Laboratory of Unmanned Underwater Vehicle Ministry of Industry and Information TechnologySchool of Marine Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710072China Naval Research Academy Beijing 100161China

Because of the low convergence efficiency of the typical Vicsek model,a Vicsek with static summoning points(VSSP)algorithm based on the Vicsek model considering static summoning points is ***,the mathematical model of the individual movement total cost on each summoning point is *** the individual classification rule is designed according to the initial state of the cluster to obtain the subclusters guided by each summoning ***,the summoning factor is introduced to modify the course angle updating formula of the Vicsek *** verify the effectiveness of the proposed algorithm and study the effect of the cluster summoning factor on the convergence rate,three groups of simulation experiments under different summoning factors are designed in this *** verify the superiority of the VSSP algorithm,the performance of the VSSP algorithm is compared with the classic algorithm by designing the algorithm performance comparison verification *** results show that the algorithm proposed in this paper has good convergence and course angle *** summoning factor is the sensitive factor of cluster *** algorithm can provide a reference for efficient cluster segmentation movement.

关键词： static summoning point Vicsek model summoning factor cluster system

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Research and implementation of cooperative cache for PVFS

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Journal of Pharmaceutical Analysis 2008年第1期20卷 9-13,23页

作者：伍卫国万群张虎刘思齐钱德沛 School of Electronics and Information Engineering Xi'an Jiaotong University

At present, there are many effective ways to achieve high performance in cluster system storage management, including server-end disk, server-end caching, local caching and cooperative caching. The cooperative caching mechanism shares caches among different clients so as to avoid expensive disk access costs and to improve overall throughput of cluster system. In this paper, a Single Copy Cooperative Cache model is proposed together with block lookup algorithm, block replacement algorithm and the consistency algorithm based on the model. Meanwhile, the prototype system of the model is implemented in PVFS file system. Finally, the performance of this system is tested in InfiniBand Framework, the result of which shows that in contrast to the original PVFS system, read performance of PVFS file system is improved by about two times, while write performance is reduced by nearly ten percent.

关键词： cluster system PVFS cooperative caching local caching consistency

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Investigation of Vortex Interaction in Canard-FSW Configurations Based on the Numerical Wind Tunnel Method

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Chinese Journal of Aeronautics 2010年第3期23卷 312-319页

作者：张国庆杨树兴徐勇北京理工大学宇航学院

The vortex interference mechanism on low Reynolds number between the canard and main wing of the canard-forward sweep wing （Canard-FSW） configurations is simulated numerically by employing the numerical wind tunnel method. The variations of aerodynamic characteristics of Canard-FSW configurations with different positions of the canard are investigated,finding that the aerodynamic interference and mutual coupling effect between the canard and main wing have made great contributions to the lift and stability characteristics of the whole aircraft. Canard can radically improve the surface flow pattern of the main wing. And its own vortex can have a favorable interference on the main wing and can effectively control the airflow boundary layer separation. At small angles of attack,the aerodynamic characteristics are sensitive to the positions of the canard and the main wing,but at high angles of attack,the aerodynamic performances of the configuration are not only related to the shape of the canard （forward or backward）,but also with the size of control force as well as the features of the vortices generated above the main wing and the canard. The different configurations and vortices are illustrated using the velocity vector,streamlines and pressure contours.

关键词： cluster system Canard-FSW backward sweep canard forward sweep canard vortex interaction mesh

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High performance computation on beam dynamics problems in high intensity compact cyclotrons

High performance computation on beam dynamics problems in hi...

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第一届中国粒子加速器会议

作者： YANG JianJun ZHANG TianJue LIN YuZheng ADELMANN Andreas WANG Feng AN ShiZhong China Institute of Atomic Energy Department of Engineering Physics Tsinghua University Paul Scherrer Institut

This paper presents the research progress in the beam dynamics problems for future high intensity compact cyclotrons by utilizing the state-of-the-art high performance computation technology.A "Start-to-Stop" model,which includes both the interaction of the internal particles of a single bunch and the mutual interaction of neighboring multiple bunches in the radial direction, is established for compact cyclotrons with multi-turn *** model is then implemented in OPAL-CYCL,which is a 3D object-oriented parallel code for large scale particle simulations in *** addition,to meet the running requirement of parallel computation,we have constructed a small scale HPC cluster system and tested its ***,the high intensity beam dynamics problems in the 100 MeV compact cyclotron,which is being constructed at CIAE,are studied using this code and some conclusions are drawn.

关键词： compact cyclotron space charge effects parallel computation beam dynamics cluster system

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The application of load balancing technology in campus network based on LVS-NAT

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International English Education Research 2014年第4期 33-34页

作者： Mao Jing The department of electronic and information engineering An Kang University An Kang Shaanxi 725000 China

The concurrent processing and load capacity of a single server cannot meet the growing demand of users for a variety of services in a campus network system. This document put forward to solve this problem using load balancing techniques based on LVS-NAT, discussed the key technologies of LVS-NAT, designed and implemented campus network service system with LVS-NAT load balancing technology and tested. The results showed that this system improved the processing and load capacity of the concurrent server effectively and provided a good reference to building the efficient and stable digital campus network system.

关键词： load balancing campus network LVS-NAT cluster system

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A Improved Parallel Genetic Algorithm Based on Fixed Point Theory for the Optimal Design of Multi-body Model Vehicle Suspensions

A Improved Parallel Genetic Algorithm Based on Fixed Point T...

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2009 2nd IEEE International Conference on Computer Science and Information Technology（ICCSIT 2009）

作者： Guangyuan Liu Scientific Research Office Hebei University of Engineering Handan China Jingjun Zhang Ruizhen Gao Yang Sun College of Info & Electric Engineering Hebei University of Engineering Handan China

Based on an improved genetic algorithm,a parallel genetic algorithm is presented and the skeleton implementing is constituted in this *** van der Laan-Talman Algorithm is introduced to the genetic algorithm to design convergence criteria objectively and to solve the convergence problem in the later *** parallel genetic algorithm of multi-body model vehicle suspension optimization is implemented through establishing the interface between ADAMS software and the genetic *** results show that the parallel genetic algorithm developed in this paper is efficient.

关键词： Vehicle suspension Genetic Algorithm Parallel Genetic Algorithm Fixed Point Theory cluster system

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面向集群系统的告警信息处理

面向集群系统的告警信息处理

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第二十四届中国数据库学术会议

作者：王杨杨树强韩伟红国防科技大学计算机学院

1引言随着信息技术的高速发展,并行集群系统作为信息处理系统的底层硬件支撑平台应用的越来越广。如图1所示,典型的并行集群系统由高速交换设备连接多个数据库集群,在每个集群中又通过SAN网络(Storage Area Network)将服务器、磁盘整列... 详细信息

1引言随着信息技术的高速发展,并行集群系统作为信息处理系统的底层硬件支撑平台应用的越来越广。如图1所示,典型的并行集群系统由高速交换设备连接多个数据库集群,在每个集群中又通过SAN网络(Storage Area Network)将服务器、磁盘整列和磁带库等设备相互连接,组成内部的数据网。

关键词： cluster system Alarm information Processing model Association analysis

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