Why do I receive the error "Unable to find the 'CUDA_PATH' environment variable" when using "coder.checkGpuInstall"?

I completely followed all instructions in the following URLs in order.

1. Installing Prerequisite Products

https://www.mathworks.com/help/releases/R2021a/gpucoder/gs/install-prerequisites.html

2. Setting Up the Prerequisite Products

https://www.mathworks.com/help/releases/R2021a/gpucoder/gs/setting-up-the-toolchain.html

I also restarted my Windows 10 OS in order to be able to start using the new environment variables which I had set with the above 2) manual.

But I get the following errors when using "coder.checkGpuInstall".

CUDA Environment    : FAILED (Unable to find the 'CUDA_PATH' environment variable. Set 'CUDA_PATH' to point to the root directory of an installed CUDA SDK.)

cuDNN Environment    : FAILED (Unable to find the 'NVIDIA_CUDNN' environment variable. Set 'NVIDIA_CUDNN' to point to the root directory of a NVIDIA cuDNN installation.)

Answer 1

[MathWorks Support Team]

Looking at the error message that occurs, it is believed that the empty result will be confirmed when checking the environment variable setting with the following command.

>> getenv('CUDA_PATH')

>> getenv('NVIDIA_CUDNN')

Please register and check using the setenv command in MATLAB as in the example command below.

>> setenv('CUDA_PATH','C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.2')

>> setenv('NVIDIA_CUDNN','C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\cuDNN')

Note: For CUDNN installation, you refer to the NVIDIA manual below and check whether it is installed properly.

https://docs.nvidia.com/deeplearning/cudnn/install-guide/index.html#download-windows