Problems running gpuArray function - CUDA driver

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Patrick Lehmann
Patrick Lehmann on 12 Jan 2021
Edited: Matt J on 13 Jan 2021
Hi all,
I have the following code lines execuding an error message:
>> size(img)
ans =
215 205 156 8
>> img_gpu = gpuArray(img);
Unable to load CUDA driver. The library name used was nvcuda.dll. The error was:
nvcuda.dll is not a valid Win32 application.
Update or reinstall your GPU driver. For more information on GPU support, see GPU Support by Release.
I have updated my GPU driver and installed the CUDA Toolkit 11.2 on my Windows 10 with a Intel(R) UHD Graphics 620. I have Matlab 2020a for 64-bit.
I found the similiar problem documented here.
Can somone recommend me a solution?
Thanks,
Patrick

Answers (2)

Matt J
Matt J on 12 Jan 2021
Make sure you've rebooted the computer after the installation.
  1 Comment
Patrick Lehmann
Patrick Lehmann on 12 Jan 2021
Yes, I have tried that several times. I have a feeling that my GPU is maybe not suitable for this application.

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Catalytic
Catalytic on 12 Jan 2021
Matlab R2020a requires CUDA Toolkit 10.1.
  3 Comments

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