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Model Configuration Parameters: Simulation Target

The Simulation Target category includes parameters for configuring the simulation target for a model. In the Configuration Parameters dialog box, the following parameters are in the Simulation Target pane.

ParameterDescription

Import custom code

Specify whether or not to parse the custom code and report unresolved symbols in a model. This setting applies to all C charts in the model, including library link charts.

LanguageSpecify C or C++ code generation for simulation targets.
GPU acceleration

Specify whether or not to accelerate MATLAB Function blocks on NVIDIA® GPUs. This option requires a GPU Coder™ license.

Hardware acceleration

Select whether or not to use hardware acceleration and the level of hardware acceleration.

Source file

Enter code lines to appear near the top of a generated source code file.

Header file

Enter code lines to appear near the top of a generated header file.

Initialize function

Enter code statements that execute once at the start of simulation.

Terminate function

Enter code statements that execute at the end of simulation.

Include directories

Specify a list of folder paths that contain files to include in the compiled target.

Source files

Specify a list of source files to compile and link into the target.

Libraries

Specify a list of static and/or shared libraries that contain custom object code to link into the target.

Defines

Specify preprocessor macro definitions to be added to the compiler command line.

Use local custom code settings (do not inherit from main model)

Specify if a library model can use custom code settings that are unique from the main model. (This parameter is read-only)

Simulate custom code in a separate processRun custom code in a separate process outside of MATLAB® during model simulation.
Enable custom code analysisSpecify whether or not to enable Simulink® Coverage™ and Simulink Design Verifier™ support for custom code.
Enable global variables as function interfacesSpecify the behavior of global variables in the C Caller custom code.
Undefined function handling

Specify undefined function behavior for all external C functions called by C Caller, MATLAB Function, MATLAB System blocks or Stateflow® charts.

Deterministic functionsSpecify whether custom code functions are deterministic.
Specify by functionSpecify which custom code functions are deterministic.
Default function array layout

Specify the default array layout for all external C functions used by the C Caller block.

Exception by function

Specify the array layout for each external C function used by the C Caller block.

Reserved names

Enter the names of variables or functions in the generated code that match the names of variables or functions specified in custom code for a model that contains MATLAB Function blocks, Stateflow charts, or Truth Table blocks.

Target library (Simulink Coder)

Specify the target deep learning library to use for simulation.

MKL-DNN requires a Simulink Coder™ license.

cuDNN or TensorRT requires a GPU Coder license.

Auto tuning (Simulink Coder)

Use auto tuning for cuDNN library. Enabling auto tuning allows the cuDNN library to find the fastest convolution algorithms.

This parameter requires Simulink Coder and GPU Coder licenses.

These configuration parameters are in the Advanced parameters section.

ParameterDescription

Echo expressions without semicolons

Enable run-time output in the MATLAB Command Window, such as actions that do not terminate with a semicolon.

Break on Ctrl+C

Enables responsiveness checks in code generated for MATLAB Function blocks, Stateflow charts, and dataflow domains.

Generate typedefs for imported bus and enumeration types

Determines typedef handling and generation for imported bus and enumeration data types in Stateflow and MATLAB Function blocks.

Enable memory integrity checks

Detects violations of memory integrity in code generated for MATLAB Function blocks and stops execution with a diagnostic.

Enable run-time recursion for MATLAB functions

Allow recursive functions in code that is generated for MATLAB code that contains recursive functions.

Enable implicit expansion in MATLAB functions

Enable implicit expansion in code that is generated for MATLAB code that contains binary operations and functions.

Compile-time recursion limit for MATLAB functions

For compile-time recursion, control the number of copies of a function that are allowed in the generated code.

Block reduction

Reduce execution time by collapsing or removing groups of blocks.

Compiler optimization level

Sets the degree of optimization used by the compiler when generating code for acceleration.

Hardware acceleration

Select whether or not to use hardware acceleration and the level of hardware acceleration.

Conditional input branch execution

Improve model execution when the model contains Switch and Multiport Switch blocks.

Verbose accelerator builds

Select the amount of information displayed during code generation for Simulink Accelerator mode, referenced model Accelerator mode, and Rapid Accelerator mode.

Dynamic memory allocation in MATLAB functions

Use dynamic memory allocation (malloc) for variable-size arrays whose size (in bytes) is greater than or equal to the dynamic memory allocation threshold. This parameter applies to MATLAB code in a MATLAB Function block, a Stateflow chart, or a System object associated with a MATLAB System block.

Dynamic memory allocation threshold in MATLAB functions

Use dynamic memory allocation (malloc) for variable-size arrays whose size (in bytes) is greater than or equal to a threshold. This parameter applies to MATLAB code in a MATLAB Function block, a Stateflow chart, or a System object associated with a MATLAB System block.

Enable continuous-time MATLAB functions to write to initialized persistent variablesEnable continuous-time MATLAB functions to write to initialized persistent variables. If disabled, continuous-time MATLAB functions can only initialize and read persistent variables.
Allow setting breakpoints during simulation

Enable adding breakpoints in MATLAB Function blocks, Stateflow charts, State Transition blocks, and Truth Table blocks during simulation.

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