Tried 32-bit debug and release builds.
Use a 64 bit debug or release build.
From the documentation:
J.1.4. System Requirements
Unified Memory has three basic requirements:
•a GPU with SM architecture 3.0 or higher (Kepler class or newer)
•a 64-bit host application and operating system, except on Android
•Linux or Windows
64 bit host application means you cannot compile for a 32 bit debug or release build.