Proceedings 35th Annual Simulation Symposium. SS 2002

18-18 April 2002

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  • Proceedings 35th Annual Simulation Symposium. SS 2002

    Publication Year: 2002
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    The following topics are dealt with: network modeling and simulation; parallel and distributed simulation; simulation based performance analysis; simulation languages, tools, and environments; Web-based modeling and simulation; and simulation methodology and practices. View full abstract»

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  • Coping with complexity: abstractions, models and data

    Publication Year: 2002, Page(s): 1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    Summary form only given, as follows. People have been dealing with complex systems since the dawn of time. They have tried to predict the weather, cure disease and interact with society, even in the most primitive of times. This talk argues that we (humans) have approached complex systems using a standard approach, utilizing the following steps: (1) collect data from (make observations of) the sys... View full abstract»

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  • Author index

    Publication Year: 2002, Page(s):373 - 374
    Request permission for commercial reuse | PDF file iconPDF (225 KB)
    Freely Available from IEEE
  • Dynamic load-balancing for BSP Time Warp

    Publication Year: 2002, Page(s):267 - 274
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (387 KB) | HTML iconHTML

    The performance of a parallel simulation system depends very much on partitioning simulation workload evenly among the set of processors in the computing environment to ensure load-balance between processors. Most parallel simulation systems employ user-defined static partitioning. However static partitioning requires in-depth domain knowledge of the specific simulation model in the study. It is n... View full abstract»

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  • Scheduling a job mix in a partitionable parallel system

    Publication Year: 2002, Page(s):115 - 121
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    Efficient scheduling of jobs on parallel processors is essential for good performance. However, design of such schedulers is challenging because of the complex interaction between system and workload parameters. This paper studies the performance of a partitionable parallel system in which job scheduling depends on job characteristics. Jobs consist of a different number of tasks and are characteri... View full abstract»

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  • Developing an Object Exchange Model Template for GRIDS distributed supply chain simulations

    Publication Year: 2002, Page(s):259 - 266
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (861 KB) | HTML iconHTML

    Supply chain management (SCM) is a series of activities, usually sequential, that an organisation, or a network of organisations, uses to deliver products and/or services to customers. With the globalisation of commercial markets, distributed supply chain (DSQ) simulation, connecting organisations from various parts of the world, has gained significance in supply chain management decision support.... View full abstract»

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  • Middleware for a distributed reconfigurable simulator

    Publication Year: 2002, Page(s):253 - 258
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (333 KB) | HTML iconHTML

    Simulations of physical layer communication systems using Monte Carlo methods usually require long execution times, because of the slow convergence of the performance estimator. By utilizing reconfigurable hardware and other processing elements such as programmable DSPs, the overall runtime of the simulation can be greatly reduced compared to traditional simulations involving general-purpose proce... View full abstract»

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  • A bandwidth-reservation mechanism for on-demand ad hoc path finding

    Publication Year: 2002, Page(s):27 - 34
    Cited by:  Papers (19)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (266 KB) | HTML iconHTML

    One of the major challenges faced by designers of ad hoc network systems is the deployment of end-to-end quality-of-service support mechanisms. This paper describes QoS-AODV, an integrated route discovery and bandwidth reservation protocol. QoS-AODV is designed to operate within a TDMA network. Unlike other path finding and route discovery protocols that ignore the impact of the data link layer, Q... View full abstract»

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  • Traffic monitoring techniques for measurement based flow acceptance control

    Publication Year: 2002, Page(s):201 - 208
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (327 KB) | HTML iconHTML

    In this paper we describe the development of a measurement based flow acceptance control mechanism that will support guaranteed services in multiservice packet switched networks. Using simulation models we present simulation experiments with two monitoring techniques. One that monitors the percentile occupancy of queue and the other monitors the mean and variance of packet inter-arrival times and ... View full abstract»

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  • SPaDES/Java: object-oriented parallel discrete-event simulation

    Publication Year: 2002, Page(s):245 - 252
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (273 KB) | HTML iconHTML

    We describe the design, implementation and performance optimizations of SPaDES/Java, a process-oriented discrete-event simulation library in Java that supports sequential and parallel simulation. Parallel event synchronization is facilitated through a hybrid carrier-, demand-driven flushing conservative message mechanism. Inter-processor message communication is coordinated by a shared persistent ... View full abstract»

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  • Animating 3D facial models with MPEG-4 FaceDefTables

    Publication Year: 2002, Page(s):365 - 370
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (642 KB) | HTML iconHTML

    In this paper, the principle of facial animation compatible with the MPEG-4 standard is introduced. Then the algorithm of calculating the displacements of face mesh vertices within the influence of facial animation parameters (FAPs) is discussed and improved. At last, a method of constructing FaceDefTables, which is one field of facial definition parameters (FDPs), is presented Using this techniqu... View full abstract»

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  • Simulation of a vehicle traffic control network using a fuzzy classifier system

    Publication Year: 2002, Page(s):285 - 291
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (315 KB) | HTML iconHTML

    A Complex Adaptive System (CAS) is a network of communicating, intelligent agents where each agent adapts its behavior in order to collaborate with other agents to achieve overall system goals. Further, the overall system often exhibits emergent behavior that cannot be achieved by any proper subset of agents alone. A graphical simulation library called Operational Evaluation Modeling for Context-S... View full abstract»

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  • A route discovery optimization scheme using GPS system

    Publication Year: 2002, Page(s):20 - 26
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB) | HTML iconHTML

    Ad hoc networks are useful for providing communication support where no fixed infrastructure exists or the deployment of a fixed infrastructure is not economically profitable, and movement of communicating parties is allowed. Therefore, such networks are designed to operate in widely varying environments, from military networks to low-power sensor networks and other embedded systems. Frequent topo... View full abstract»

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  • Design and performance modeling & simulation of self-healing mechanisms for wireless communication networks

    Publication Year: 2002, Page(s):35 - 42
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    The use of wireless communications networks has gained phenomenal momentum both in the business and individual-user sectors. As a consequence of the increasing reliance of businesses on such networks, service disruption due to network facility failures can cause severe economic impact on the associated business. Hence service survivability-i.e., providing continued service in the midst of network ... View full abstract»

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  • Performance simulation of the Jambala platform

    Publication Year: 2002, Page(s):190 - 197
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (361 KB) | HTML iconHTML

    The paper presents a prototype tool developed for dimension server applications running on Jambala, Ericsson's cluster-based server platform. Its very high availability derives predominantly from software solutions in the underlying TelORB operating system. The prototype-dimensioning tool is based on a high level model of TelORB. It follows features of the operating system rather than a given appl... View full abstract»

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  • Ranking a list of discrete-event models

    Publication Year: 2002, Page(s):151 - 159
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB) | HTML iconHTML

    It has been demonstrated that Arena simulation models can be parameterized and stored in a relational database for later use. In this way an Arena model can be uniquely described by assigning the right values to the corresponding parameters. These parameters contain detailed information concerning type and number of modules, entities and routes which entities follow through the system. A modeler c... View full abstract»

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  • A distributed graphical environment for interactive fault simulation and analysis

    Publication Year: 2002, Page(s):160 - 166
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (377 KB) | HTML iconHTML

    Graphical user interfaces can provide interactive and intuitive visual communication to fault simulation and analysis application programs, enhancing the capabilities of engineers to conduct studies with ease and flexibility. Unfortunately, such benefits often come at the price of efficient CPU utilization and more complicated maintenance activities. Employing a distributed architecture can mitiga... View full abstract»

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  • An architecture and implementation to support large-scale data access in scientific simulation environments

    Publication Year: 2002, Page(s):169 - 176
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (313 KB) | HTML iconHTML

    At Sandia National Laboratories, a Data Services system has been developed to provide web-based access to high-performance computing clusters that host a set of post-processing applications for very large-scale data manipulation and visualization. A three-tier architecture provides a meta-framework for a collection of smaller frameworks, each of which satisfies a particular aspect of the overall s... View full abstract»

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  • Using simulation to facilitate effective workflow adaptation

    Publication Year: 2002, Page(s):177 - 181
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (386 KB) | HTML iconHTML

    In order to support realistic real-world processes, workflow systems need to be able to adapt to changes. Detecting the need to change and deciding what changes to carry out are very difficult. Simulation analysis can play an important role in this. It can be used in tuning quality of service metrics and exploring "what-if" questions. Before a change is actually made, its possible effects can be e... View full abstract»

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  • Gang scheduling performance on a cluster of non-dedicated workstations

    Publication Year: 2002, Page(s):235 - 241
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (270 KB) | HTML iconHTML

    Clusters of workstations have emerged as a cost effective solution to the high performance computing problem. To take advantage of any opportunities, however, effective scheduling techniques are necessary that enable parallel applications to dynamically share workstations with their owners. In this paper a special type of parallel applications called gangs are considered. Gangs are jobs that consi... View full abstract»

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  • A simulation based performance analysis of a TCP extension for best-effort multimedia applications

    Publication Year: 2002, Page(s):327 - 336
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB) | HTML iconHTML

    Since TCP is considered unsuitable for the majority of the emerging multimedia applications, these applications primarily use UDP transport together with proprietary congestion control schemes that have better jitter and throughput characteristics. A common problem with these congestion control schemes is that they often exhibit a TCP-unfriendly and unfair behavior As the number of applications th... View full abstract»

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  • Temporal uncertainty time warp: an agent-based implementation

    Publication Year: 2002, Page(s):72 - 79
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    This paper introduces TUTW - Temporal Uncertainty Time Warp - a control engine designed for an exploitation of temporal uncertainty (TU) in general optimistic simulations, and concentrates on an agent-based implementation of TUTW which enables distributed simulations over the Internet. A novel concept in TUTW is an event model where time intervals are attached to events instead of classical punctu... View full abstract»

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  • Simulating group communication protocols through an object-oriented framework

    Publication Year: 2002, Page(s):143 - 150
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (291 KB) | HTML iconHTML

    This paper discusses the design and implementation! of Simm-cast, an object-oriented framework for network simulation with specific support for group communication. The design of the framework is focused towards simplicity and extensibility. The aim is to allow a spectrum of experiments ranging from evaluation of abstract group communication models to simulation of more detailed multicast protocol... View full abstract»

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  • Simulator for E-LOTOS specifications

    Publication Year: 2002, Page(s):389 - 394
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (274 KB) | HTML iconHTML

    This article presents an approach and tool for specification simulations accomplished in the formal description technique (FDT) enhancements to language of temporal ordering specification (E-LOTOS). Based on the defined inference rules for the E-LOTOS operators, the tool offers resources for interactive simulation, enabling the user to monitor the specification behavior. To illustrate the use of t... View full abstract»

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  • Scalability of parallel simulation cloning

    Publication Year: 2002, Page(s):275 - 282
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (239 KB) | HTML iconHTML

    In previous work we presented an algorithm for cloning parallel simulations that enables multiple simulated execution paths to be explored simultaneously. The method is targeted for parallel discrete event simulators that provide the simulation application developer a logical process (LP) execution model. The cloning algorithm gains efficiency by cloning logical processes only as necessary. In thi... View full abstract»

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