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作者： Lin, Szu-Yun University of Michigan

学位级别：Ph.D.

When a disruption such as a severe natural event occurs, the interdependencies between the infrastructure systems of society can lead to cascading events that can adversely affect community resilience. Resilience is the ability of a community to withstand, adapt and recover from a disruption, typically measured in terms of loss of life, injuries and economic cost. Studying the interactions between infrastructure systems is complicated by the fact that each system is rooted in a specific field and thus requires crossing disciplinary barriers. To overcome the identified research challenge, this dissertation employs distributed computational simulation to model and investigate the interdependencies that arise during severe disasters and the post-disaster recovery process. It focuses in particular on multi-scale interdependencies and their time-dependent effects on community resilience. A distributed simulation framework that links each discipline specific simulator using a publish-subscribe data transmission pattern is proposed. The framework’s capabilities are demonstrated through a case study of multistory buildings that suffer wind-induced progressive damage. Data transmission is achieved using the Lightweight Communications and Marshalling (LCM) libraries. Building upon the LCM platform, a group of discipline specific computational models with disparate temporal and spatial scales are linked together to investigate the time-dependent interdependencies that arise between water, gas, and electrical power systems during a series of seismic events and the corresponding recovery processes. The results show that ignoring interdependencies can adversely affect resilience assessments and adopting time-varying recovery strategies can lead to better resilience performance. An agent-based computational model simulating benefit fraud behavior in the wake of a disaster is used to demonstrate that distributed simulation frameworks can take into account broader socio-technical in

关键词： Community Resilience distributed simulation Interdependencies in Disaster Benefit Fraud in the Wake of Disaster Time-Dependent Resilience Assessment Thesis

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A federated approach to parallel and distributed simulation of complex systems

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INTERNATIONAL JOURNAL OF APPLIED MATHEMATICS AND COMPUTER SCIENCE 2007年第1期17卷 99-106页

作者： Sikora, Andrzej Niewiadomska-Szynkiewicz, Ewa Res & Acad Comp Network NASK PL-02796 Warsaw Poland Warsaw Univ Technol Inst Control & Computat Engn PL-00665 Warsaw Poland

The paper describes a Java-based framework called ASimJava that can be used to develop parallel and distributed simulators of complex real-life systems. Some important issues associated with the implementation of parallel and distributed simulations are discussed. Two principal paradigms for constructing simulations today are considered. Particular attention is paid to an approach for federating parallel and distributed simulators. We describe the design, performance and applications of the ASimJava framework. Two practical examples, namely, a simple manufacturing system and computer network simulations are provided to illustrate the effectiveness and range of applications of the presented software tool.

关键词： parallel simulation distributed simulation federated simulators computer networks simulation Frame Relay

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distributed simulation Models to Estimate Indices of Structural Reliability of Electric Power Systems 9

Distributed Simulation Models to Estimate Indices of Structu...

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9th International Scientific Symposium on Electrical Power Engineering (ELEKTROENERGETIKA)

作者： Grishkevich, Andrey Czestochowa Tech Univ Elect Fac Czestochowa Poland

ISBN: (纸本)9788055331959

The estimates of the contribution of failure states of an electric power system to the resulting indices of system reliability on the basis of the simulation model are dealt with. An algorithmic implementation of a distributed simulation model using the MPI library is proposed. The results of testing a distributed simulation model on a computing cluster are given. The laws of distributions different from exponential and the obtained distributions of duration of states are considered.

关键词： Monte Carlo methods distributed simulation MPI library electric power system reliability Markov's model

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Development and benchmarking of an epoch time synchronization method for distributed simulation

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JOURNAL OF MANUFACTURING SYSTEMS 2005年第2期24卷 69-78页

作者： Rathore, Adityavijay Balaraman, Balaji Zhao, Xiaobing Venkateswaran, Jayendran Son, Young-Jun Wysk, Richard A. Univ Arizona Dept Syst & Ind Engn Tucson AZ 85721 USA Penn State Univ Dept Ind & Mfg Engn University Pk PA 16802 USA

In this paper, a new epoch time synchronization approach for distributed simulation federates is presented. The approach allows federates in the simulation system to advance their local times at full speed while it is safe to do so. That is, the simulation moves rapidly to the minimum next epoch (interaction) event time, which is calculated using the minimum sojourn time for each federate, and then slows for federation synchronization. The proposed approach is demonstrated using a manufacturing supply chain simulation composed of four distributed federates. Experiments are executed to benchmark the proposed epoch time synchronization method against conventional conservative synchronization methods to show typical improvements for simulation operation. The experimental results reveal that the proposed approach reduces supply chain simulation execution time significantly while maintaining complete accuracy as compared with traditional conservative federation coordination approaches.

关键词： distributed simulation time synchronization look-ahead algorithm supply chain modeling

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Fast distributed simulation of Sensor Networks Using Optimistic Synchronization

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IEEE TRANSACTIONS ON PARALLEL AND distributed SYSTEMS 2014年第11期25卷 2888-2898页

作者： Jiang, Hao Zhai, Jiannan Wahba, Sally K. Mazumder, Biswajit Hallstrom, Jason O. Clemson Univ Sch Comp Clemson SC 29634 USA

Network simulation is an important tool for testing and evaluating wireless sensor network applications. Parallel simulation strategies improve the scalability of these tools. However, achieving high performance depends on reducing the synchronization overhead among simulation processes. In this paper, we present an optimistic simulation algorithm with support for backtracking and re-execution. The algorithm reduces the number of synchronization cycles to the number of transmissions in the network under test. We implement SnapSim, an extension to the popular Avrora simulator, based on this algorithm. The experimental results show that our prototype system improves the performance of Avrora by 2 to 10 times for typical network-centric sensor network applications, and up to three orders of magnitude for applications that use the radio infrequently. We also implement a distributed version of SnapSim, D-SnapSim, which runs on a cluster. The experimental results show that D-SnapSim further improves the performance of SnapSim by up to 10 times for applications that use the radio frequently.

关键词： Wireless sensor networks network simulation distributed simulation backtracking algorithms

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Efficient Flow-Based Scheduling for Geo-distributed simulation Tasks in Collaborative Edge and Cloud Environments

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IEEE TRANSACTIONS ON PARALLEL AND distributed SYSTEMS 2022年第12期33卷 3442-3459页

作者： Zhang Miao Peng Yong Zhu Jiancheng Yin Quanjun Natl Univ Def Technol Coll Syst Engn Changsha 410073 Hunan Peoples R China

Edge computing is a good complement to cloud computing for deploying large-scale geo-distributed simulation applications, which are very sensitive to the communication delay among different simulation components (also called tasks in this paper) and users. We mainly focus on the efficient scheduling of simulation components in collaborative edge and cloud environments. As components should be deployed jointly with the consideration of capacity constraints of hosts, it is actually an NP-complete multi-dimensional bin packing problem. Meanwhile, dynamic changes of component and host states require the low deployment latency of scheduling algorithms. Unfortunately, most of the existing schedulers for modern clusters are queue-based, in which tasks are scheduled sequentially, thus lacking the ability to process tightly coupled tasks jointly. Other batching-based placement algorithms are usually time-consuming. This paper describes Pond, a novel flow-based scheduler with the awareness of interactions among tasks and users as well as heterogeneous multi-dimensional resources. First, characteristics of distributed simulation tasks are analysed and the scheduling problem is formulated as a min-cost max-flow (MCMF) problem over the flow network by mapping the communication overhead among tasks and users to the costs of arcs in the network. Considering the inherent defects of existing flow-based schedulers in dealing with multi-dimensional resources, a new method based on dominant resource is proposed and some problem specific heuristics are also designed. Extensive simulation experiments based on Alibaba production trace and some random synthetic parameters are conducted. Results show that Pond can reduce the average communication cost for each task significantly in a quite low deployment latency compared with some baselines.

关键词： Task analysis Computational modeling Data models Costs Cloud computing Optimization Clustering algorithms Task scheduling distributed simulation minimum cost maximum flow cloud and edge environment

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A software architecture to ease the development of distributed simulation systems

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simulation-TRANSACTIONS OF THE SOCIETY FOR MODELING AND simulation INTERNATIONAL 2011年第9期87卷 819-836页

作者： Gianni, Daniele D'Ambrogio, Andrea Iazeolla, Giuseppe European Space Agcy Syst Modelling & Funct Verificat Sect NL-2200 AG Noordwijk Netherlands Univ Roma Tor Vergata Dept Enterprise Engn Rome Italy

The simulation of modern systems may require an amount of computational resources that might not be available on a single host. distributed simulation (DS) provides an effective way to scale up for the increased computational requirements. However, using existing DS environments remains the main obstacle to the wide adoption of DS systems, because of their inherent complexity. This complexity can be quantitatively shown by the extra effort that the development of DS systems requires compared to the development of conventional local simulation (LS) systems. In this paper we introduce SimArch, a layered architecture that eases the development of DS systems by enabling simulation developers to effortlessly obtain a DS system or derive a DS system from the equivalent LS one. A reference model is used throughout the paper to illustrate the use of SimArch in the development of DS systems and to prove how the DS development effort is lowered down with respect to the use of a conventional DS environment.

关键词： development effort distributed simulation distributed simulation environments High Level Architecture layered architecture simulation languages

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A survey on distributed simulation in industry

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JOURNAL OF simulation 2009年第1期3卷 3-16页

作者： Boer, C. A. de Bruin, A. Verbraeck, A. TBA BV NL-2624 AV Delft Netherlands Delft Univ Technol NL-2600 AA Delft Netherlands

distributed simulation is used very little in industry, especially when compared with the interest in distributed simulation from research and from the military domain. In order to answer the question why industry lags behind, the authors have carried out an extensive survey, namely a questionnaire targeted at vendors of commercial-off-the-shelf (COTS) simulation packages and a series of open-ended interviews with experts on distributed simulation. Analysis of the answers obtained establish that it is indeed the case that industry is relatively underdeveloped in the area of distributed simulation and also sheds light on the reasons behind this. A categorization of these responses is given using which it is possible to formulate clear guidelines for further developments of standards for distributed simulation.

关键词： simulation distributed simulation HLA COTS simulation package industry military

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On computation and synchronization costs in spatial distributed simulation

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JOURNAL OF simulation 2012年第3期6卷 193-204页

作者： Zunino, R. Univ Trento Dipartimento Ingn & Sci Informaz I-38123 Povo TN Italy COSBI Rovereto TN Italy

We consider the problem of simulating spatially distributed entities which can move, see each other, and react accordingly. We provide centralized reference algorithms for both time-stepped and discrete-event simulation. Under reasonable assumptions, we then proceed to distribute the simulation among several nodes by assigning each node a subregion of the simulation space. A main characteristic of our approach is that the subregions do not form a partitioning, but a covering. That is, they partially overlap, hence causing some duplicated computation, which is apparently redundant. The amount of overlapping is a tunable parameter of our algorithms, which affects the overall performance in a non-trivial way. Through an analytical model as well as experimental results we discover a trade-off. Choosing a small overlapping requires to perform frequent synchronizations, which negatively affect performance. However, a large overlapping leads to more duplicated work, which also decreases performance. Balancing the amount of overlapping is then required to optimize performance. Journal of simulation (2012) 6, 193-204. doi:10.1057/jos.2012.9;published online 4 May 2012

关键词： spatial simulation distributed simulation biology-inspired models

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Advanced distributed simulation: a review of developments and their implication for data collection and analysis

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simulation PRACTICE AND THEORY 2000年第3-4期8卷 201-231页

作者： Wilcox, PA Burger, AG Hoare, P Heriot Watt Univ Dept Elect & Comp Engn Edinburgh Midlothian Scotland DERA Malvern Worcs England

The field of advanced distributed simulation (ADS) has emerged and evolved since the 1980s. Developments are driven largely from within the United States (US) Department of Defense (DoD). This paper summarizes the history and evolution of ADS, detailing recent developments, notably the high level architecture (HLA). The implications of the HLA for data collection and analysis are discussed. Current approaches are reviewed including one of the largest ADS projects to date, the synthetic theatre of war (STOW), and its approach to data collection. We consider the impact of ADS beyond military training and discuss future development of ADS technology. Crown Copyright (C) 2000 Published by Elsevier Science B.V. All rights reserved.

关键词： distributed simulation advanced distributed simulation high level architecture data collection data analysis

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