That seems to be related to the actual building of the engine and not compiling/cooking things within the engine once it’s loaded.
Anyway, is that claim of 8 cores not being used by default pertaining to AMD specifically? Back when I was using a HT’ed i7 920, shader compiling and cooking utilised all threads correctly, and my two X5690’s use all 24 threads during these tasks and nothing was changed to exhibit this behaviour, the DevKit does it by default.
Do AMD CPU’s not function correctly in this regard?
-WM