The High Level Architecture (HLA) is a standard developed by the US Department of Defense (DoD), and is meant to establish interoperability among different types of simulations at multiple locations for the simulation...
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The Selectively Reliable Multicast Protocol (SRMP) provides an approach to reliable multicast that is specialized to distributed virtual simulation. SRMP operates in three modes of reliability: best-effort transmissio...
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This paper explores the feasibility of using the United States Department of Defense's High Level Architecture (HLA) for federating an existing simulation with itself. Although the HLA was not originally designed ...
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The complexity and dynamics of the Internet is driving the demand for scalable and efficient network simulation. Yet, parallelizing network simulation at packet level does not work efficiently and therefore do not sca...
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In September 2000, the IEEE approved the three High Level Architecture (HLA) documents as standards, 1516, 1516.1, and 1516.2. The form, functionality, and content of these documents are significantly the same as thei...
Extensive research has been conducted on the performance of simulation systems. In this paper, a performance analysis of the conservative parallelsimulation protocol is presented. We analyzed several performance fact...
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ISBN:
(纸本)076951104X
Extensive research has been conducted on the performance of simulation systems. In this paper, a performance analysis of the conservative parallelsimulation protocol is presented. We analyzed several performance factors for the conservative simulation of a model with an arbitrary number of logical processes. The analysis probabilistically identifies the critical path in a conservative model, and also estimates the number of safe messages processed by an logical process during its busy time. This can be used to estimate the busy time of a logical process and hence the duration for which it is blocked. The analytical results are verified using simulation of a real world wireless network simulation model.
This paper discusses the problem of risk in optimistic simulation protocols, using as an example, simulation of a distributed mutual exclusion protocol with strong consistency properties. The simulation model is augme...
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ISBN:
(纸本)076951104X
This paper discusses the problem of risk in optimistic simulation protocols, using as an example, simulation of a distributed mutual exclusion protocol with strong consistency properties. The simulation model is augmented to detect model inconsistency errors resulting from risky optimistic simulation. While the model runs sequentially without consistency errors, errors occur when the model is executed in parallel optimistically. Some of the errors entirely violate the fundamental mutual exclusion properties of the model itself. To address this problem, we extend the optimistic simulation library to eliminate these inconsistencies. We discuss the details of these extensions and the performance tradeoff for adding them.
The paper analyzes the Detailed Policy Assessment Tool (DPAT) as an example of a practical real-world aviation simulation that uses optimistic simulation technology. We present a review of analyses that have used DPAT...
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ISBN:
(纸本)076951104X
The paper analyzes the Detailed Policy Assessment Tool (DPAT) as an example of a practical real-world aviation simulation that uses optimistic simulation technology. We present a review of analyses that have used DPAT results to support their conclusions, and discuss the design and performance of the system in the context of parallelsimulations. The thrust of the paper is to explain how DPAT avoids some of the problems associated with optimistic simulation, while exploiting its strengths. A key conclusion is that parallelsimulation technology, particularly optimistic synchronization, needs to be built into the product from its conceptual design through implementation, as opposed to adding it afterwards.
When used to simulate manufacturing systems, most existing parallelsimulation languages cannot easily implement some features of those systems, such as the scheduling rules of a machine or the sharing of operators by...
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ISBN:
(纸本)076951104X
When used to simulate manufacturing systems, most existing parallelsimulation languages cannot easily implement some features of those systems, such as the scheduling rules of a machine or the sharing of operators by multiple machines. The paper presents the design and implementation of a parallel object oriented manufacturing simulation language, called POMSim. A POMSim simulation is developed by using the concept of classes (entity types) and inheritance to support iterative design of efficient simulation models. POMSim completely hides all the details of parallelsimulation, and provides simple and direct constructs to efficiently model the scheduling rules in manufacturing simulations. It also provides asynchronous method invocation and synchronous function call. POMSim libraries predefine a set of basic classes for manufacturing simulation, each of which represents a particular component in the physical manufacturing system.
Extensive research has been conducted on the performance of simulation systems. In this paper, a performance analysis of the conservative parallelsimulation protocol is presented. We analyzed several performance fact...
详细信息
ISBN:
(纸本)076951104X
Extensive research has been conducted on the performance of simulation systems. In this paper, a performance analysis of the conservative parallelsimulation protocol is presented. We analyzed several performance factors for the conservative simulation of a model with an arbitrary number of logical processes. The analysis probabilistically identifies the critical path in a conservative model, and also estimates the number of safe messages processed by an logical process during its busy time. This can be used to estimate the busy time of a logical process and hence the duration for which it is blocked. The analytical results are verified using simulation of a real world wireless network simulation model.
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