Matlab throws and error while using gpuDevice. It asks for CUDA driver newer than 10.1. I have 10.2 installed.

If I run the command gpuDevice, I get the following error,"Error using gpuDevice (line 26)

CUDA driver version 9 is not supported. Update CUDA driver to version 10.1 or greater. For more information on GPU support,

see GPU Support by Release."

I am positive that I have installed CUDA driver 10.2.

Answer 1

[Jason Ross]

If you run nvidia-smi it will tell you the driver version you are running. On Linux it should be on the path, on Windows it's in "C:\Program Files\Nvidia corporation\nvsmi\nvidia-smi.exe"

Output will look something like the following:

+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.33.01    Driver Version: 440.33.01    CUDA Version: 10.2     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  Tesla K80           Off  | 00000000:04:00.0 Off |                    0 |
| N/A   37C    P8    29W / 149W |     11MiB / 11441MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   1  Tesla K80           Off  | 00000000:05:00.0 Off |                    0 |
| N/A   46C    P0    71W / 149W |      0MiB / 11441MiB |     99%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|  No running processes found                                                 |
+-----------------------------------------------------------------------------+

[Tamoghna Bhattacharya]

I tried this, a pop up window appears and then instantly disappears. May be because my GPU is pretty low key, I am running a Geforce GT 820M.

[Jason Ross]

You need to start a Command Prompt and run it in there -- I assume you are running on Windows?

That said, looking at the latest driver available for this card from nVidia, (423.31), it was released on April 11, 2019. According to the Wikipedia article on the GeForce 800M series, it looks like this particular GPU uses the GF117, which makes it a Fermi class GPU. In 2018, nVidia moved these cards to "legacy status", for which the final CUDA toolkit version is 8.0 -- so anything requiring a tooklit version > 8 is going to not work with this GPU.

According to our GPU support matrix, the latest release to support CUDA toolkit 8.0 is R2017b. Anything later will require a newer GPU to work with it.

I assume when you run nvidia-smi, it's going to show you have CUDA 8.

[Tamoghna Bhattacharya]

Yes, I got the impression that my GPU is an old one. Thanks for the help though.