GPU Coder

Generate CUDA code from MATLAB code

Description

The GPU Coder app generates CUDA^® C++ code from MATLAB^® code. You can generate CUDA C++ source code, static libraries, dynamically linked libraries, and executables that you can then integrate into existing CUDA C++ applications outside of MATLAB. You can also generate CUDA MEX functions for MATLAB acceleration. The GPU Coder™ app is integrated into the MATLAB desktop. You can use the app in the installed version of MATLAB and MATLAB Online™.

The app includes:

• A GPU Coder tab where you can select the output type, configure the code generator, open the Entry Points pane, generate code, and verify code.

• An Entry Points pane where you can add entry-point functions and global variables. You can define input types automatically or manually.

• A GPU Coder panel that suggests next steps. In this panel, the Input section shows the entry-point functions and global variables. The Output section shows the output from code generation. After successfully generating code, the Output section links to the generated code.

Using the app, you can:

• Generate code in MATLAB Online.

• Create a project or open an existing project. The project specifies the input files, entry-point function input types, and build configuration.

• Review code generation readiness issues, including unsupported functions.

• Switch between the MATLAB Editor and the Entry Points pane.

• Export project settings in the form of a MATLAB script.

• Access generated files.

• Package generated files as a single zip file for deployment outside of MATLAB.

• If you have an Embedded Coder^® license, verify the numerical behavior of generated code using software-in-the-loop or processor-in-the-loop execution.

Open the GPU Coder App

• MATLAB Toolstrip: On the Apps tab, under Code Generation, click the app icon.

• MATLAB Command Window: Enter gpucoder.

Programmatic Use

gpucoder

Version History

Introduced in R2017b

R2025a: GPU Coder app integrated into the MATLAB desktop

The GPU Coder app has been redesigned to use several panes integrated into the MATLAB desktop. In previous releases, the app opened in a separate window.

R2025a: Available in MATLAB Online

The GPU Coder app is available in MATLAB Online.

R2025a: GPU Coder app saves projects with the .coderprj extension by default

By default, the GPU Coder app saves projects with the .coderprj extension instead of a .prj extension. If you open a GPU Coder project created in previous releases, the app saves a copy of the PRJ file as a CODERPRJ file. The app saves changes you make to the CODERPRJ file.

When opening a code generation project from a prior release, the app does not copy parameters specific to NVIDIA^® Jetson™ or NVIDIA DRIVE^® platforms from the PRJ file to the CODERPRJ file. If you open a project from a prior release that uses NVIDIA Jetson or NVIDIA DRIVE, verify the hardware settings before generating code.

R2025a: Run Generated MEX replaces Check for Issues step

To check for issues in generated code, use the Run Generated MEX button in the GPU Coder tab. You must provide a script that executes your entry-point functions. For more information, see Verify Correctness of the Generated Code.

In previous releases, you verified generated CPU or GPU code using the Check for Issues step.

R2025a: Converting to single-precision is not supported

The app does not support converting double-precision MATLAB code to single-precision CUDA code. Use the codegen command with the -singleC option instead. For more information, see Generate Single-Precision C Code at the Command Line. This option requires Fixed-Point Designer™.

R2025a: Search Paths parameter is not available

The Search Paths parameter is not available in the GPU Coder app. To add additional folders to the search path, generate code using the codegen command with the -I option.