3D software not using GPU

overlaps · February 9, 2022, 5:29pm

Hi everybody,
I finally managed to get my Windows 2012 R2 vm working on proxmox, with GPU passthrough enbaled and licenced GRID vWS drivers up and and running using a TESLA T4 card.
Server is a poweredge R740
I am trying a BIM software which is using 3D modeling and performances are awfull. It looks like the vgpu is not used.
Any Tips from experienced users would be great

==============NVSMI LOG==============


Timestamp                                 : Wed Feb  9 17:54:06 2022

Driver Version                            : 472.98

CUDA Version                              : 11.4

Attached GPUs : 1 GPU 00000000:01:00.0 Product Name : GRID T4-4Q Product Brand : NVIDIA RTX Virtual Workstation Display Mode : Enabled Display Active : Disabled Persistence Mode : N/A MIG Mode Current : N/A Pending : N/A Accounting Mode : Disabled Accounting Mode Buffer Size : 4000 Driver Model Current : WDDM Pending : WDDM Serial Number : N/A GPU UUID : GPU-98745397-89c0-11ec-8b3e-387adb41f841 Minor Number : N/A VBIOS Version : 00.00.00.00.00 MultiGPU Board : No Board ID : 0x100 GPU Part Number : N/A Module ID : N/A Inforom Version Image Version : N/A OEM Object : N/A ECC Object : N/A Power Management Object : N/A GPU Operation Mode Current : N/A Pending : N/A GSP Firmware Version : N/A GPU Virtualization Mode Virtualization Mode : VGPU Host VGPU Mode : N/A vGPU Software Licensed Product Product Name : NVIDIA RTX Virtual Workstation License Status : Licensed (Expiry: 2022-2-10 16:8:5 GMT)


PS C:\Program Files\NVIDIA Corporation\NVSMI> ./nvidia-smi.exe -l
Wed Feb  9 18:27:31 2022
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 472.98       Driver Version: 472.98       CUDA Version: 11.4     |
|-------------------------------+----------------------+----------------------+
| GPU  Name            TCC/WDDM | Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  GRID T4-4Q         WDDM  | 00000000:01:00.0 Off |                    0 |
| N/A   N/A    P8    N/A /  N/A |   4018MiB /  4096MiB |      4%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+

Ron_G · February 9, 2022, 9:41pm

Hi,

if this is for RDS sessions. Did you set the policy (GPO) → se the hardware default graphics adapter for all Remote Desktop Services sessions ?

vApps license is needed for this usecase only, but RTX Virtual Workstation will do, although not needed.

Cheers,
Ron.

overlaps · February 9, 2022, 10:26pm

Thanks for your answer,
Yes, it is a RDS session environment, and the GPO is enabled.

Ron_G · February 10, 2022, 2:10pm

Hi,

have you tried different apps i.e. free benchmarks (Unigine Heaven etc) to check GPU acceleration is working in general even if not for your BIM software.
You can try OpenGL and Direct3D in Unigine for example but there is a lot of other tools available and you may want check with nvidia-smi or for better usability GPUProfiler (Releases · JeremyMain/GPUProfiler · GitHub) in your RDS sessions. Don’t have any WS2012R2 running anymore, just WS2019 and WS2022 but if GPU/vGPU is recognized in general this should work just fine.

Ron.

BTW: I think your eval license period ends today

overlaps · February 10, 2022, 2:52pm

Hi,
Token have a 1 day validity, then I have to regenerate a new one :-)
I am actually using GPUProfiler.
Thing is, when I use the BIM software, perfs are awfull and it looks like it is using almost nothing from the GPU.
If I start testing with href=“HTML5 Fish Bowl” the GPU goes up normally.
The card is recognised by the software and I asked the company who told me that as long as the software recognised it there is nos issue.
We have to stick with WS2012R2 for the moment as the DC is a linux samba which AD/FOREST is not compatible with upper AD/FOREST. It sucks but no choice from what I know

overlaps · February 10, 2022, 2:56pm

here is the output of nvidi-smi:

±----------------------------------------------------------------------------+ | Processes: | | GPU GI CI PID Type Process name GPU Memory | | ID ID Usage | |=============================================================================| | 0 N/A N/A 504 C+G …dows\system32\LogonUI.exe N/A | | 0 N/A N/A 564 C+G C:\Windows\system32\dwm.exe N/A | | 0 N/A N/A 3844 C+G …tic\Windesc\ImportIFC.exe N/A | | 0 N/A N/A 4052 C+G C:\Windows\system32\dwm.exe N/A | | 0 N/A N/A 4440 C+G …Attic\Windesc\windesc.exe N/A | | 0 N/A N/A 5876 C+G C:\Windows\Explorer.EXE N/A | ±----------------------------------------------------------------------------+

overlaps · February 14, 2022, 2:19pm

WS2019 did the job.
Thanks for the help