Version 2.2 (R2008a) SimEvents® Software Release Notes

Version 2.2 (R2008a) SimEvents^® Software

This table summarizes what's new in Version 2.2 (R2008a):

New features and changes introduced in this version are

• Initial Value Block in Signal Management Library

• Discrete Event Subsystem Supports Complex and Nonscalar Values

• Seed Management for Random Number Generators

• Configuration Parameters for Diagnostics

• "What's This?" Context-Sensitive Help Available for Simulink^® Configuration Parameters Dialog

• New Demos

Initial Value Block in Signal Management Library

The new Initial Value block is in a new library called Signal Management. This block sets a signal value before the first event occurs.

Also, the Signal Latch block has moved from the Gates library to the new Signal Management library.

Discrete Event Subsystem Supports Complex and Nonscalar Values

In Version 2.2 (R2008a), input signals to the Discrete Event Subsystem block can be real or complex signals of any dimension. In earlier versions, input signals to the block must be real scalars. For details about discrete event subsystems, see Working with Discrete Event Subsystem Blocks.

Seed Management for Random Number Generators

New functions and diagnostics help you ensure uniqueness of seeds of random number generators and manage sets of seeds in a series of simulation runs. For details, see these sections:

• Varying Simulation Results by Managing Seeds

• se_getseeds function reference page

• se_setseeds function reference page

• se_randomizeseeds function reference page

• Identical seeds for random number generators

Configuration Parameters for Diagnostics

The Configuration Parameters dialog box has a new SimEvents^® Diagnostics pane to advise you of race conditions and help you manage seeds of random number generators.

For more information, see SimEvents^® Diagnostics Pane.

"What's This?" Context-Sensitive Help Available for Simulink^® Configuration Parameters Dialog

R2008a introduces "What's This?" context-sensitive help for parameters that appear in the Simulink^® Configuration Parameters dialog. This feature provides quick access to a detailed description of the parameters, saving you the time it would take to find the information in the Help browser.

To use the "What's This?" help, do the following:

1. Place your cursor over the label of a parameter.

2. Right-click. A What's This? context menu appears.

   For example, the following figure shows the What's This? context menu appearing after a right-click on the Start time parameter in the Solver pane.

   

3. Click What's This? A context-sensitive help window appears showing a description of the parameter.

New Demos

SimEvents software Version 2.2 (R2008a) introduces these new demos:

• Managing Race Conditions

• Avoiding Identical Seeds for Random Number Generators

• Seed Management Workflow for Random Number Generators

• Asynchronous Clock Domains

• Rate-Based Shared Processor

Also, the demo formerly named "Explicit Routing for Distributed Processing" has been renamed as "Distributed Processing for Multi-Class Jobs."

SimEvents® Release Notes

Version 2.1 (R2007b) SimEvents® Software