This is a post by Dave Martin on PTC site.
PTC and ANSYS partnered this year to enable structural, thermal, and modal simulation capability right inside Creo Parametric’s modeling environment. With Creo Simulation Live there’s no more switching to a different mode and no exporting of files. By running off your graphics processor it generates results practically instantaneously. Even more amazing, the results update as you make changes to your parts and assemblies.