for a specific medical application I do need a computer that supports GPU calculation in TCC mode. For this purpose, I bought a Dell 7740 mobile workstation which is equipped with a dedicated Nvidia Quadro RTX 5000 graphics card as well as a Intel UHD Graphics 630. (Dell advertised this computer for powerful graphics applications.) The computer has 128 GB of main memory and is running with Windows 10 Pro.
In the computers BIOS on can select autotmatic switching between both graphic cards or deactivate the on board Intel UHD Graphics 630.
I could install the driver “461.09-quadro-rtx-desktop-notebook-win10-64bit-international-dch-whql.exe” as well as “cuda_11-2-0_460.89_win10.exe” without any problems.
I could start Windows PowerShell as an Admin and started nvidia-smi.exe in the c:\WINDOWS\system32 directory. The garphics card is recognized but I am unable to switch in TCC mode.
Using “nvidia-smi -g 0“ the graphics card can be addressed explicitly. But the command “nvidia-smi -g 0 -dm 1” or “nvidia-smi -g 0 -fdm 1” results with the error message “Unable to set driver model for GPU 00000000:01:00.0: Not supported. Treating as a warning and moving on. All done”.
I tried to make sure that the RTX 5000 is not in use by the Windows 10 OS. In the NVIDIA Display menu I could assign the physics calculation to CPU and the 3D mode to the on board Intel UHD graphics.
With the NVIDIA tool „Nsight Monitor“ / „Nsight Monitor options“ / „Microsoft Display Driver“ I could explicitly set „WDDM TDR Enabled“ to „false“. After rebooting the system the „Nsight Monitor“ tells me that WDDM-Modus is disabled. But also in this configuration „nvidia-smi -g 0 -dm 1“ or „nvidia-smi -g 0 -fdm 1“ failed to activate the TCC mode.
All CUDA-Sample programs for Microsoft Visual Studio 2019 are running without problems.
On every CUDA information page the RTX 5000 is announced to be compatible with alle GPU calculation modes.
But what does the error message „Unable to set driver model for GPU 00000000:01:00.0: Not supported. Treating as a warning and moving on. All done” tell me?
Is anything wrong on my computer configuration what prevents to select the TCC mode?
Is the TCC mode never compatible with the Quadro RTX 5000?
Is this a problem of my driver version? (I also tried out a large number of older driver / CUDA versions but without any success.)
Will the TCC mode be supported in future driver versions?
So far I was unable to get an answer to my questions (neither Dell nor Nvidia).
Thanks in advance for your efforts!