Get the intel iGPU card available in the docker without the --privileged flag

[FantasticMrFox]

We are able to start a docker with the `--privileged` flag and get this:

sycl-ls
[opencl:acc:0] Intel(R) FPGA Emulation Platform for OpenCL(TM), Intel(R) FPGA Emulation Device 1.2 [2022.15.12.0.01_081451]
[opencl:cpu:1] Intel(R) OpenCL, Intel(R) Core(TM) i9-10885H CPU @ 2.40GHz 3.0 [2022.15.12.0.01_081451]
[opencl:gpu:2] Intel(R) OpenCL HD Graphics, Intel(R) UHD Graphics [0x9bc4] 3.0 [22.28.23726.1]
[opencl:acc:3] Intel(R) FPGA Emulation Platform for OpenCL(TM), Intel(R) FPGA Emulation Device 1.2 [2022.15.12.0.01_081451]

Note that the Intel(R) OpenCL HD Graphics is available, which is my coffee lake iGPU.  But `--privileged` is a collosal hammer of a flag. We should be able to get the gpu with just `--device=/dev/dri`. Indeed, with this flag only, i can get the nvidia card, but not the iGPU. With --device=/dev/dri only, I get:

[opencl:acc:0] Intel(R) FPGA Emulation Platform for OpenCL(TM), Intel(R) FPGA Emulation Device 1.2 [2022.15.12.0.01_081451]
[opencl:cpu:1] Intel(R) OpenCL, Intel(R) Core(TM) i9-10885H CPU @ 2.40GHz 3.0 [2022.15.12.0.01_081451]
[opencl:acc:3] Intel(R) FPGA Emulation Platform for OpenCL(TM), Intel(R) FPGA Emulation Device 1.2 [2022.15.12.0.01_081451]

 Note that the iGPU is missing. 

What do i need to do to get the iGPU in there?

[FantasticMrFox]

In addition to this,

If i mount the folder directly:

--volume=/dev/dri:/dev/dri

then it also finds the iGPU

[FantasticMrFox]

ok, so you need device, but you also need the render group. This was very hard to find out.

getent group render
render:x:109:

So you add 

--group-add=109

[NoorjahanSk_Intel]

Hi,

Thanks for posting in Intel communities.

You can get the GPU in docker by installing GPU drivers in the Docker file using the below commands

RUN curl -fsSL https://repositories.intel.com/graphics/intel-graphics.key | apt-key add -

RUN echo "deb [trusted=yes arch=amd64] https://repositories.intel.com/graphics/ubuntu focal main" > /etc/apt/sources.list.d/intel-graphics.list

and then install intel-opencl-icd intel-level-zero-gpu level-zero level-zero-dev through apt-get command

Hope this resolves your issue. If this resolves your issue, make sure to accept this as a solution. This would help others with a similar issue.

Thanks & Regards,

Noorjahan.

[FantasticMrFox]

Without this, it would not have even worked with the --privileged. The answer is not what you posted, it is the combination of 

--volume=/dev/dri:/dev/dri 

and 

--group-add=109

[NoorjahanSk_Intel]

Hi,

Thanks for providing the details.

You can mount the folder while starting the Docker container and it will find the GPU as you have mentioned.

If you use a Docker file then you can install a GPU driver using the below commands as mentioned in my previous post.

RUN curl -fsSL https://repositories.intel.com/graphics/intel-graphics.key | apt-key add -

RUN echo "deb [trusted=yes arch=amd64] https://repositories.intel.com/graphics/ubuntu focal main" > /etc/apt/sources.list.d/intel-graphics.list

Could you please confirm whether your issue is resolved? If yes, can we go ahead and close this issue?

Thanks & Regards,

Noorjahan.

[NoorjahanSk_Intel]

Hi,

I have not heard back from you, so I will close this inquiry now. If you need further assistance, please post a new question.

Thanks & Regards,

Noorjahan.