1.11 Basics: Running Active-HDL in Batch Mode Using vSimSA Active-HDL can be run in the batch mode, that is, without using the graphical user interface (GUI). Active-HDL batch mode is referred to as VSimSA or a stand-alone simulator. The batch mode allows running a comprehensive processing of a design or a set of designs. This video will cover how to access both Interactive Mode and Batch Mode as well as demonstrating some basic commands in the VSimSA shell and OS shell to set libraries, compile files, and run simulation.