Visualize how MATLAB's RNGs multi-thread.
Use this application to view side-by-side comparisons of MATLAB Random Number Generator (RNG) performance as the number of available computational threads is varied. Results can be exported to the MATLAB workspace for further analysis.
To install the app from within MATLAB:
- Open the Add-Ons panel by clicking the Add-Ons icon on the left sidebar of the desktop.
- Search for "RNGMultiThreading" in the search box at the top of the Add-Ons panel.
- Select the app from the list and click the Install button.
For alternative installation methods, see Get and Manage Add-Ons.
To use this app, you need:
- MATLAB release R2025a or newer.
To open the app, go to the Apps tab and expand the apps gallery by clicking the down arrow on the far right, then click on the app icon in the My Apps section.
To start measuring random number generator performance, select a generator by ticking the box next to its name. The app then computes the results for that generator. You can also select or deselect all generators using the parent entry CPU.
By default, the app measures the performance of generating large arrays of
random numbers using the rand function.
To instead measure the performance of normally-distributed random number
generators, you can choose to use the randn function.
The plotted data can be exported to the MATLAB workspace as a table for further analysis using the Export to Workspace button.
The license is available in the license.txt file in this GitHub repository.
Copyright 2025 The MathWorks, Inc.