Performance Tools (Using Simulink)

Using Simulink

Blocks That Do Not Show Speed Improvements

The Simulink Accelerator speeds up execution only of blocks from the Simulink, Fixed Point, and DSP blocksets. Further, the Accelerator does not improve the performance of some blocks in the Simulink and DSP blocksets. The following sections list these blocks.

Simulink Blocks

Display
From File
From Workspace
Inport (root level only
MATLAB Fcn
Outport (root level only)
Scope
To File
To Workspace
Transport Delay
Variable Transport Delay
XY Graph

DSP Blockset Blocks

Biquadratic Filter
Convolution
Direct-Form II Transpose Filter
Dyadic Analysis Filter Bank
Dyadic Synthesis Filter Bank
FIR Decimation
FIR Interpolation
FIR Rate Conversion
From Wave Device
From Wave File
Integer Delay
Variable Integer Delay
Matrix Multiply
Matrix To Workspace
Triggered Signal To Workspace
Triggered Signal From Workspace
Time-Varying Direct-Form II Transpose Filter
To Wave File
To Wave Device
Wavelet Analysis
Wavelet Synthesis
Zero Pad

User-Written S-Function Blocks

In addition, the Accelerator does not speed up user-written S-Function blocks unless you inline them using the Target Language Compiler and set SS_OPTION_USE_TLC_WITH_ACCELERATOR in the S-function itself. See Controlling S-Function Execution for more information.

Increasing Performance of Accelerator Mode Using the Simulink Accelerator with the Simulink Debugger