Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 28 for “"distributed simulation"”.
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A distributed simulation environment for multibody physics
A distributed simulation environment, which can be used to model multibody physics, is developed. The software design is based on the object oriented paradigm and is implemented in C++ to run on a single workstation or multiple processors in parallel. It provides facilities to set up a multibody …
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A Holistic Usability Framework For Distributed Simulation Systems
… develops a holistic usability framework for distributed simulation systems (DSSs). The framework is developed considering relevant research in human-computer interaction, computer science, technical writing, engineering, management, and psychology. The methodology used consists of three …
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Data Transmission Scheduling For Distributed Simulation Using Packet A
… latency reduction techniques are developed for Distributed Interactive Simulation (DIS) protocols. Using logs from vignettes simulated by the OneSAF Testbed Baseline (OTB), a discrete event simulator based on the OMNeT++ modeling environment is developed to analyze the Protocol Data Unit (PDU) …
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Speculation-Based Distributed *Simulation for Dependability and Performance Analysis
… of faults. The technique allows efficient simulation without incurring much additional run-time overhead to obtain reliability results. Experimental results include error coverage, error latency distribution, and effective round-trip time.
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Development of a Distributed Simulation Cluster for MOOS-IvP
Batch testing simulations of autonomy software make verification and optimization much easier and more robust. The ability to verify and optimize code is particularly important for large, expensive assets, such as marine vessels, where the cost of any failure is high. This thesis discusses the …
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Distributed Simulation Methods and Algorithms for Superconducting Quantum Computer Reliability
… issue. Reaching such goal requires the efficient simulation of quantum systems, both at the algorithmic and device level, pushing against the known limitations and bottlenecks imposed by these methods. The first objective is to understand the feasibility of quantum circuit simulations with the …
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Performance comparison of data distribution management strategies in large-scale distributed simulation.
… and interaction information in large-scale distributed simulations. The key to efficient DDM is to limit and control the volume of data exchanged during the simulation, to relay data to only those hosts requiring the data. This thesis focuses upon different DDM implementations and …
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An Interactive Distributed Simulation Framework With Application To Wireless Networks And Intrusion Detection
… we describe the portable, open-source distributed simulation framework (WINDS) targeting simulations of wireless network infrastructures that we have developed. We present the simulation framework which uses modular architecture and apply the framework to studies of mobility pattern …
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Applications of agent architectures to decision support in distributed simulation and training systems
… model for applying intelligent agents to complex distributed interactive simulation for command and control. In the framework of tactical command, control communications, computers and intelligence (C_4I), software agents provide a novel approach for efficient decision support and distributed …
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A Framework To Model Complex Systems Via Distributed Simulation: A Case Study Of The Virtual Test Bed Simulation System Using the High Level Architecture
… as interoperability and reusability enabled by distributed discrete-event simulation are becoming extremely important in many disciplines, not only military but also many engineering disciplines such as distributed manufacturing, supply chain management, and enterprise engineering, etc. In this …
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Dynamic Grid-Based Data Distribution Management in Large Scale Distributed Simulations
Distributed simulation is an enabling concept to support the networked interaction of models and real world elements that are geographically distributed. This technology has brought a new set of challenging problems to solve, such as Data Distribution Management (DDM). The aim of DDM is to limit …
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Piecing together the magic mirror : a software framework to support distributed, interactive applications
Developing applications for distributed platforms can be very difficult and complex. We have developed a software framework to support distributed, interactive, collaborative applications that run on collections of self-organizing, autonomous computational units. We have included modules to aid …
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Design of a World-Wide Simulation Web
The World-Wide Simulation Web (WWSW) is an emergent distributed simulation environment whose use model parallels that of the World-Wide Web (WWW). The idea was developed from working with two generations of the Distributed Object-Modeling Environment (DOME). A design for the architecture of the …
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Trustworthy infrastructure for Peer-to-Peer applications using hardware based security
… has been used for designing many large-scale distributed systems. Structured P2P, in particular, has received a greater amount of research attention. Having trust in such the P2P environments can help mitigate many problems including security, because peers can choose to interact with the ones …
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A Programming Model For Optimism
… held back by the speed of light, particularly in distributed systems. Optimistic algorithms that "guess" the results of operations and proceed in parallel with confirmation of the guess are an effective way to hide the latency of slow operations with predictable outcomes. Optimism is used in …
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Experimental study and performance analysis of real time applications over differentiated services capable networks
… enabled networks to MPEG-2 compressed video and Distributed Interactive Virtual Environments (DIVE) applications. Video based services will be among the most popular high-bandwidth applications running in the future through Internet. DIVE based services are emerging as powerful tools for use in …
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Multi-processor logic simulation at the chip level
… to parallel processing, the concept of distributed simulation is described as well as the possibility of deadlock in a distributed system. It is proven that the proposed system does not deadlock. Next, the modeling techniques are discussed along with the timing mechanisms used for logic …
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Exploration of Cancellation Strategies for Parallel Simulation on Multi-Core Beowulf Clusters
<p>A time warp synchronized distributed simulation organizes a discrete event simulation into concurrently executing Logical Processes (LPs) that use a rollback recover mechanism whenever a causality violation is detected. The LPs operate independently from one another and when performing a …
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An Architectural Framework for Performance Analysis: Supporting the Design, Configuration, and Control of DIS /HLA Simulations
… are providing greater capabilities for most distributed computing environments. However, the advances in capabilities are paralleled by progressively increasing amounts of system complexity. In many instances, this complexity can lead to a lack of understanding regarding bottlenecks in …
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Data assimilation and dynamical downscaling of remotely-sensed precipitation and soil moisture from space
… was preliminarily tested with a spatially distributed simulation of streamflow using the TIN (Triangular Irregular Network)-based Real-time Integrated Basin Simulator (tRIBS).
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