The flow for the VCS and NCSim tools is different depending on the version of the Vivado tool set being used. These tools use a file list and simulation script to run the simulation. The Vivado tool set will provide the simulation script for the tools, however, will not launch the tools directly.
The script generation for VCS and NCSim will be fully integrated into the Vivado 2013.3 build.
For prior releases of the Vivado tools, please see: