Hi Alex,
Are you doing it from a single computer?
If not then you will need to use Vizard's cluster system which will require Enterprise license.
There also some information that you can take a look and try it by yourself first.
http://docs.worldviz.com/vizard/Vizcave.htm
http://docs.worldviz.com/vizard/vizc...le_machine.htm
http://docs.worldviz.com/vizard/vizc..._clustered.htm
Best,
Kevin