Chip Level Modeling and Simulation
Article Abstract:
Because of the complexity of LSI chips, the fact that gate level models of the chips are often known only to the manufacturer, and the need for accurate maintainance of the database, simulation applications present problems in LSI technology. Previous approaches to the problem of LSI device modeling have required languages that assume synchronous time, which is not always the case. Another approach, termed 'chip level' modeling, addresses internal microoperations, memory storage needs, and device interface signal timing using the General Simualation Program (GSP), a program for modeling logic devices at LSI and MSI levels. Using this approach, a model of device input-output characteristics was accomplished. In process is work on chip fault simulation. A flow chart of a counter module, diagrams of LSI devices, microprocessor system interface timing and simulation system Structure, a table of fault simulation results, a block diagram of a controlled counter module, and program listings are included.
Publication Name: SIMULATION
Subject: Engineering and manufacturing industries
ISSN: 0037-5497
Year: 1983
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Simulation Modeling for Hospital Bed Planning
Article Abstract:
A computer simulation model was developed to address the problem of allocating beds to hospital services, by bed type and sex. The model, written in Simscript 11.5, was designed to permit experimentation with and evaluation of bed usage policies and admissions rules as well as allocation plans. Using the model, hospital beds at the Mount Sinai Medical Center, New York City, were reallocated. Incorporated in this reallocation was the creation of a new service. Also developed was a revised elective admissions reservation board. An altered view of measures of performance was another outcome. Discussion in this paper will center around the allocation problem, the simulation model, the performance measures, the hospital configurations, the experiments and the results obtained. (Reprinted by Permission of Publisher.)
Publication Name: SIMULATION
Subject: Engineering and manufacturing industries
ISSN: 0037-5497
Year: 1984
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Simulation Nets, a Simulation Modeling and Validation Tool
Article Abstract:
Simulation nets can serve for discrete-event simulation. This tool is based on Petri nets with extensions for modeling, validating, and experimenting. Petri nets have been extensively explored since 1962. The resulting publications are easy to understand and are structured in a hierarchical fashion; the descriptions are so exact that they may be regarded as a programming language. This language does not describe how the simulation should be performed but only what the underlying model looks like (i.e. it is a non-procedural description of the simulation program). Thus, it is possible to obtain simulation results in only a fraction of the time needed for tools requiring programming. (Reprinted by Permission of Publisher.)
Publication Name: SIMULATION
Subject: Engineering and manufacturing industries
ISSN: 0037-5497
Year: 1985
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