How do I find the GPU version in MATLAB?

I am just wondering how I find GPU version/info in MATLAB. Is there a MATLAB function doing so? Thanks a lot.

[Walter Roberson]

of related interest: http://www.mathworks.com/matlabcentral/answers/33277-can-matlab-tell-me-which-gpu-device-is-the-one-connected-to-the-display

Answer 1

[Thomas]

Use the function gpuDevice.

 gpuDevice

If you do not have a cuda enabled GPU device the function will throw an error.

[Nick Tsui]

hi Thomas:

Thanks a lot. That is exactly what I needed.

[Jason Ross]

Other assumptions:

- CUDA driver needs to be installed

- GPU needs to support compute capability 1.3 or better (http://developer.nvidia.com/cuda-gpus)

- On Windows, special care must be taken when using Remote Desktop so the GPU can be found.

[Abdelrahman Anis]

@Jason Ross

May you please elaborate more on the special care that must be taken when accessing the system remotely? Thank you!

I am accessing a version of MATLAB R2020a, installed in a linux OS, remotely from a Windows OS using MobaXterm. I get an error when I try to access the GPU information using the command gpuDevice. The CUDA drivers are installed because Pytorch is working properly. In such case, I think the third reason is the last reason left.

[Walter Roberson]

Perhaps it is https://knowledge.civilgeo.com/knowledge-base/enabling-gpu-rendering-for-microsoft-remote-desktop/

[Jason Ross]

@Abdelrahman Anis -- the "special care" that I was specifically referring to was that in 2012, nVidia did not have great support for their cards being usable/finadble when using Remote Desktop -- it was pretty restricive and you had to use something like VNC in many cases. At some point between 2012 and today, nVidia added support for Remote Desktop across their product line so there's not really as much "special care" needed any longer. Note that this was for the specific case of the remote machine being Windows.

For Linux, if you connect to a host and an nvidia-smi shows your GPU, a MATLAB running on that system should be able to find the GPU. It should work if you start it in console/nodesktop mode (which I assume you are doing with MobaXTerm), or if you start a VNC session on the Linux host and start MATLAB in the VNC session.

[Abdelrahman Anis]

@Jason Ross Thank you!