SPRINGSIM

The Discrete Event Simulation Computer (DESC) reported here improves simulation performance through an exploitation of parallelism inherent in simulation, with regard to list processing, random number generation, statistical analysis and program ...

The application of simulation modeling in the design of data communications networks where terminal response time is a critical factor is presented. Terminal response time requirements for large interactive computer systems and cost tradeoffs related to ...

Individuals involved in the field of simulation have long recognized its benefits to a broad range of applications. What continues to need to be done however, is to adequately relate these beneficial features to the needs of the using community. This ...

This paper discusses the use of simulation as a tool for evaluating the performance of local area network protocols. The design described includes a modular organization of protocol submodels and a user interface which allows the user to specify the ...

GPSS was introduced by IBM as a language for discrete event simulation in October, 1961. Since that time, GPSS has evolved through a number of versions (GPSS II, GPSS III, GPSS/360, GPSS/V, and GPSS/H), and has been implemented for a variety of ...

Let X(T) be an integer valued stochastic process, continuous in time, T. By a computer simulation model one can obtain from the interval (O,T) an estimate of the mean, q, of the process by the time average r_i (T), where i is the initial state at time 0. ...

Although evaluating a detailed discrete event simulation model of a large scale system can be computationally taxing, parallel simulation provides hope of reducing computation time to tractable levels. We present three performance studies based on a ...

This paper describes a graphically based programming system for simulation models of systems representable as generalized queueing network models. The model and program development system substantially enhances the capabilities of automating the ...

Several modeling extensions recently incorporated in an interactive project scheduling system (GITPASE, Graphical Interactive Technique for Project Analysis, Scheduling and Evaluation) provide a basis for corresponding extensions in interactive PERT ...

The Distributed System Simulator (DSS) is a computer simulation of a database system distributed across a computer network. The system incorporates an “Optimizer” program which develops an optimal routing strategy for incoming transactions. The DSS ...

The properties of a fault tolerant computer system based on a hexagonal grid of processing elements (called the FMPA system) is investigated through discrete event simulation. An hypothetical test environment is used to investigate the robustness of the ...

We introduce a truncation algorithm to reduce the effects of initialization bias on Monte-Carlo simulations of stationary Markovian queueing systems. The heuristic is based on the estimated relaxation time of the underlying model and implementation ...

Scheduling rules for a specific general purpose Flexible Manufacturing System (FMS) were investigated. The primary purpose of this research was to investigate effects and interactions of three types of scheduling rules on FMS performance. The rules ...

We propose a methodology for developing simulations in the interactive mode. Rather than use an iconic model for doing so, we show how the use of systems theory representation enhances the interaction. This not only facilitates debugging, but is of ...

The effective utilization of systems involving human decision makers depends critically upon the design of the interfaces at which man and machine communicate and at which information is displayed in support of human decision-making processes. This ...

Traditionally, discrete-event simulations have been controlled in a synchronous manner. The synchronization is achieved through a data-structure, normally referred to as an events-list. Manipulations on this list can often be very expensive and can thus ...