GPU is not available for Pytorch
I installed Anaconda, CUDA, and PyTorch today, and I can't access my GPU (RTX 2070) in torch. I followed all of installation steps and PyTorch works fine otherwise, but when I try to access the GPU either in shell or in script I get
&gt;&gt;&gt; import torch
&gt;&gt;&gt; torch.cuda.is_available()
False
&gt;&gt;&gt; torch.cuda.device_count()
0
&gt;&gt;&gt; print(torch.version.cuda)
None

Running conda list shows this as my installed package
cudatoolkit               11.3.1               h59b6b97_2

and running numba -s in the conda environment shows
__CUDA Information__
CUDA Device Initialized                       : True
CUDA Driver Version                           : 11030
CUDA Detect Output:
Found 1 CUDA devices
id 0    b'NVIDIA GeForce RTX 2070'                              [SUPPORTED]
                      compute capability: 7.5
                           pci device id: 0
                              pci bus id: 1
Summary:
        1/1 devices are supported

and all of the tests pass with ok. CUDA 11.3 is one of the supported compute platforms for PyTorch and by my GPU and that is the version that I installed.
I already tried reinstalling CUDA, I am on Windows 10, nvcc --version shows that CUDA is installed Build cuda_11.3.r11.3/compiler.29745058_0
Any suggestions would be helpful
Edit: I am using PyTorch 1.10 installed from the generated command on their website. Using python 3.9.7. I also installed PyTorch again in a fresh conda environment and got the same problem.

If you use conda, try to update conda. It works for me to install PyTorch 1.10 with CUDA 10.2.
