MATLAB does not detect NVIDIA T400 GPU despite updated drivers

Hi everyone,

I am experiencing an issue with MATLAB (version R2024a) on Windows 11 Pro where it fails to detect my NVIDIA T400 4GB GPU. I have already followed several troubleshooting steps without success. Here are the details of my system and the steps I've taken so far:

System Details:

• Operating System: Windows 11 Pro Version 10.0 (Build 22631)
• MATLAB Version: R2024a (Update 3)
• GPU: NVIDIA T400 4GB
• NVIDIA Driver Version: 516.94
• CUDA Version: 11.7

Steps Taken:

• Updated the NVIDIA drivers to the latest version (516.94).
• Verified that the GPU is correctly recognized by the operating system using nvidia-smi:bash

C:\Users\Utente>nvidia-smi Wed May 29 12:02:48 2024
+-----------------------------------------------------------------------------+ 
| NVIDIA-SMI 516.94       Driver Version: 516.94       CUDA Version: 11.7     | 
|-------------------------------+----------------------+----------------------+
| 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  NVIDIA T400 4GB    WDDM  | 00000000:01:00.0 Off |                  N/A | 
| 38%   37C    P8    N/A /  31W |      1MiB /  4096MiB |      0%      Default | 
|                               |                      |                  N/A | 
+-------------------------------+----------------------+----------------------+ 
+-----------------------------------------------------------------------------+ 
| Processes:                                                                  | 
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      | 
|=============================================================================|
|    0   N/A  N/A     10668    C+G   ...024a\bin\win64\MATLAB.exe    N/A      |
+-----------------------------------------------------------------------------+ 

• Ran MATLAB as an administrator to ensure it has the necessary permissions.
• Checked that the CUDA environment variables are correctly set.
• Set the Windows power plan to "High performance".
• Ran gpuDeviceCount in MATLAB, but it does not detect any available GPU = gpuDeviceCount; disp(['Number of GPUs available: ', num2str(n)]); % Output: Number of GPUs available: 0

Question:What can I do to resolve this issue and have MATLAB correctly detect my NVIDIA GPU? Are there any additional configuration steps I should follow or any other settings to check? Any suggestions or similar experiences would be greatly appreciated.

Thanks in advance for your help!

[Ganesh]

Hi @Andrea Molent,

Could you please execute the following command in your Command Window and attach the log:

> strace -f -o gpuDeviceCount.log matlab -nodisplay -nosplash -r "disp(gpuDeviceCount);exit"

Meanwhile you may also contact MathWorks Technical Support using the following link:

https://www.mathworks.com/support/contact_us.html

[Andrea Molent]

Thank you for the suggestion. It seems that the “strace ” command does not work because I am working with Windows. I followed your suggestion and forwarded the question to the Matlab Technical Support .

Answer 1

[Joss Knight]

The 516 driver is too old for R2024a, which is on CUDA 12.2. Download the recommended 552 driver for your T400 from https://www.nvidia.com/en-gb/drivers/

Incidentally if you just type gpuDevice into MATLAB the error message should tell you your driver needs updating.