MATLAB: Do I receive the error “Unable to find the ‘CUDA_PATH’ environment variable” when using “coder.checkGpuInstall”

GPU Coder

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.)

Best Answer

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