Examples

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Use this list to find examples in the documentation.

Working with Signals

Running a Demo Simulation

Building a Simple Hybrid Model

Creating a Random Signal for Switching

Resampling a Signal Based on Events

Sending Queue Length to the Workspace

Queuing Systems

Building a Simple Discrete-Event Model

Event Calendar Usage for a Queue-Server Model

Waiting Time in LIFO Queue

Serving Preferred Customers First

Preemption by High-Priority Entities

M/M/5 Queuing System

Using Servers in Shifts

Varying Queue Capacity Between Runs Using Rapid Simulation

Routing Entities

Selecting the First Available Server

Using an Attribute to Select an Output Port

Round-Robin Approach to Choosing Inputs

A Packet Switch

Cascaded Switches with Skewed Distribution

Compound Switching Logic

Choosing the Shortest Queue

Attributes of Entities

Role of Attributes in SimEvents Models

Setting Attributes

Varying Attribute Values Between Runs Using Rapid Simulation

Counting Entities

Counting Simultaneous Departures from a Server

Resetting a Counter After a Transient Period

Working with Events

Comparing Types of Signal-Based Events

Observing Service Completions

Detecting Collisions by Comparing Events

Opening a Gate Upon Random Events

Counting Events from Multiple Sources

Choices of Values for Event Priorities

Effects of Specifying Event Priorities

Server States

Failure and Repair of a Server

Adding a Warmup Phase

Batching

Varying Fluid Flow Rate Based on Batching Logic

Gates

Controlling Joint Availability of Two Servers

Synchronizing Service Start Times with the Clock

Opening a Gate Upon Entity Departures

First Entity as a Special Case

Timeouts

Basic Example Using Timeouts

Defining Entity Paths on Which Timeouts Apply

Dropped and Timed-Out Packets

Rerouting Timed-Out Entities to Expedite Handling

Limiting the Time Until Service Completion

Discrete Event Subsystems

Comparing the Lengths of Two Queues

Normalizing a Statistic to Use for Routing

Ending the Simulation Upon an Event

Sending Unrepeated Data to the MATLAB Workspace

Focusing on Events, Not Values

Detecting Changes from Empty to Nonempty

Logging Data About the First Entity on a Path

Using Entity-Based Timing for Choosing a Port

Performing a Computation on Selected Entity Paths

Troubleshooting

Plotting Entity Departures to Verify Timing

Plotting Event Counts to Check for Simultaneity

Time-Based Addition of Event-Based Signals

Intergeneration Time of Zero at Simulation Start

Absence of Sample Time Hit at Simulation Start

Faulty Logic in Feedback Loop

Deadlock Resulting from Loop in Entity Path

Invalid Connection of Event-Based Random Number Generator

Sequence of Departures and Statistical Updates

Using a #n Signal as a Trigger

Statistics

Fraction of Dropped Messages

Computing a Time Average of a Signal

Resetting an Average Periodically

Computing an Ensemble Average Using MATLAB Code

Varying the Number of Servers Using MATLAB Code

Computing an Ensemble Average Using Rapid Simulation

Timers

Basic Example Using Timer Blocks

Timing Multiple Entity Paths with One Timer

Restarting a Timer from Zero

Timing Multiple Processes Independently

Rapid Simulation

Computing an Ensemble Average Using Rapid Simulation

Varying Attribute Values Between Runs Using Rapid Simulation

Varying Queue Capacity Between Runs Using Rapid Simulation

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