In Simulink, a batch workflow typically means submitting jobs to run simulations on MATLAB workers and subsequently accessing the results of those simulations. When you run simulations in batches, you offload the execution of simulations onto a compute cluster. 

The batchsim command uses the Parallel Computing Toolbox™ and MATLAB^® Distributed Computing Server™ licenses to run the simulations on MATLAB workers in parallel. batchsim runs the simulations in serial if the Parallel Computing Toolboxlicense is not available.

Prior to R2019a, MATLAB Parallel Server was called MATLAB Distributed Computing Server.