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MATLAB does not detect NVIDIA T400 GPU despite updated drivers

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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!
  2 Comments
Ganesh
Ganesh on 30 May 2024
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:
Andrea Molent
Andrea Molent on 30 May 2024
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 .

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Answers (1)

Joss Knight
Joss Knight on 14 Jun 2024
Edited: Joss Knight on 14 Jun 2024

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.

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