Tesla T4 and OpenGL

[hosseinrezaa]

Hi
I am execting a c++ code that has post-processing with OpenGL. The pc has Tesla T4 GPU. It seems that this GPU is not compatible with OpenGL. Is there any solution to this problem?
Regards

[Dark_Photon]

@hosseinrezaa

I am [executing] a c++ code that has post-processing with OpenGL.

The pc has Tesla T4 GPU.
It seems that this GPU is not compatible with OpenGL.

Are you sure?
What indication are you getting that OpenGL is not supported on a Tesla T4?
And how are you trying to make use of it?

From what I read, it doesn’t have a video output. But it sounds like you can make use of it in OpenGL in a VM (see below). My guess is you may also be able to do offscreen GL rendering on it through EGL. I suspect that’s what Deepstream is doing.

See below for more info.

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• NVIDIA Tesla T4 Specs | TechPowerUp GPU Database

The Tesla T4 is a professional graphics card by NVIDIA, … It features 2560 shading units, 160 texture mapping units, and 64 ROPs. …

DirectX: 12 Ultimate (12_2)
OpenGL: 4.6
Vulkan: 1.2
Outputs: No outputs

• NVIDIA T4 Tensor Core GPU for AI Inference | NVIDIA Data Center

The NVIDIA T4 graphics processing unit (GPU) … is now supported for virtualized workloads with NVIDIA virtual GPU (vGPU) software. Using the same NVIDIA graphics drivers that are deployed on non-virtualized systems, NVIDIA vGPU software provides Virtual Machines (VMs) with the same breakthrough performance and versatility that the T4 offers to a physical environment.

• Virtual GPU Software User Guide :: NVIDIA Virtual GPU Software Documentation

1.6.1. API Support on NVIDIA vGPU

NVIDIA vGPU includes support for the following APIs:
…
OpenGL 4.6
…
After you license NVIDIA vGPU, the VM that is set up to use NVIDIA vGPU is capable of running the full range of DirectX and OpenGL graphics applications.

• ERROR: Could not init EGL display connection with ./deepstream-test1-app sample_720p.... - DeepStream SDK - NVIDIA Developer Forums

I am running on [Tesla] T4
…
Deepstream requires nvidia GPU for output to display,
if you are using Tesla card, please noted it’s compute card, but you can follow this to setup virtual display [on it:] https://elinux.org/Deepstream/FAQ , 5A

• Deepstream/FAQ - eLinux.org

2. A hacky way to use Tesla p4 for virtual display, but just suggest for developments, since it will take some percent of device memory, finally impact the inference perf

   first need to install nvidia graphic driver with opengl installed

   sudo nvidia-xconfig --query-gpu-info
   Number of GPUs: 2
   GPU #0:
   Name : Tesla T4
   UUID : GPU-b58f5878-b235-c28e-4e2a-44d8623d133a
   PCI BusID : PCI:3:0:0
   Number of Display Devices: 0
   GPU #1:
   Name : Tesla P4
   UUID : GPU-55bc88aa-fc94-0e86-9319-abd5fadf49ab
   PCI BusID : PCI:4:0:0
   Number of Display Devices: 0

   sudo nvidia-xconfig --busid=PCI:4:0:0 --allow-empty-initial-configuration

   reboot system, install nomachine from your windows system, and also need install nomachine on your linux server which have p4 installed, and login to desktop
   using nomachine from windows system.