In MATLAB, ‘parsim’ is a command used in conjunction with Simulink to run multiple simulations in parallel, which can significantly speed up the process when you have many simulations to run. However, ‘parsim’ itself is designed to utilize multiple CPU cores rather than a GPU.
The ‘parsim’ command uses the Parallel Computing Toolbox™ license to run the simulations in parallel, ‘parsim’ runs the simulations in serial if a parallel pool cannot be created or if Parallel Computing Toolbox is not used.
For further information, refer to the documentation link below:
