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Developing An Object-Oriented Approach For Operations Simulation In Speedes, Amit Wasadikar
Developing An Object-Oriented Approach For Operations Simulation In Speedes, Amit Wasadikar
Electronic Theses and Dissertations
Using simulation techniques, performance of any proposed system can be tested for different scenarios with a generated model. However, it is difficult to rapidly create simulation models that will accurately represent the complexity of the system. In recent years, Object-Oriented Discrete-Event Simulation has emerged as the potential technology to implement rapid simulation schemes. A number of software based on programming languages like C++ and Java are available for carrying out Object Oriented Discrete-Event Simulation. These software packages establish a general framework for simulation in computer programs, but need to be further customized for desired end-use applications. In this thesis, a …
Speedes: A Case Study Of Space Operations, Amith Paruchuri
Speedes: A Case Study Of Space Operations, Amith Paruchuri
Electronic Theses and Dissertations
This thesis describes the application of parallel simulation techniques to represent the structured functional parallelism present within the Space Shuttle Operations Flow using the Synchronous Parallel Environment for Emulation and Discrete-Event Simulation (SPEEDES), an object-oriented multi-computing architecture. SPEEDES is a unified parallel simulation environment, which allocates events over multiple processors to get simulation speed up. Its optimistic processing capability minimizes simulation lag time behind wall clock time, or multiples of real-time. SPEEDES accommodates an increase in process complexity with additional parallel computing nodes to allow sharing of processing loads. This thesis focuses on the process of translating a model of …
Rollback-Able Random Number Generators For The Synchronous Parallel Environment For Emulation And Discrete-Event Simulation (Spe, Ramaswamy Karthik Narayanan
Rollback-Able Random Number Generators For The Synchronous Parallel Environment For Emulation And Discrete-Event Simulation (Spe, Ramaswamy Karthik Narayanan
Electronic Theses and Dissertations
Random Numbers form the heart and soul of a discrete-event simulation system. There are few situations where the actions of the entities in the process being simulated can be completely predicted in advance. The real world processes are more probabilistic than deterministic. Hence, such chances are represented in the system by using various statistical models, like random number generators. These random number generators can be used to represent a various number of factors, such as length of the queue. However, simulations have grown in size and are sometimes required to run on multiple machines, which share the various methods or …