TotalView User Guide : Part V: Using the CUDA Debugger : CUDA Debugging Tutorial : Displaying Device Information
Displaying Device Information
TotalView can display each device installed on the system, along with the properties of each SM, warp, and lane on that device. Together, these four attributes form the physical coordinates of a CUDA thread. To view the window, select Tools > CUDA Devices.
 
Figure 251: CUDA Devices when no CUDA threads are present
 
Figure 252: CUDA Devices when CUDA threads are present