error: metadata-generation-failed

[Justinfungi]

When i run pip install --global-option="--no-networks" git+https://github.com/NVlabs/tiny-cuda-nn#subdirectory=bindings/torch

The error code shown to me:
`
WARNING: Implying --no-binary=:all: due to the presence of --build-option / --global-option / --install-option. Consider using --config-settings for more flexibility.
DEPRECATION: --no-binary currently disables reading from the cache of locally built wheels. In the future --no-binary will not influence the wheel cache. pip 23.1 will enforce this behaviour change. A possible replacement is to use the --no-cache-dir option. You can use the flag --use-feature=no-binary-enable-wheel-cache to test the upcoming behaviour. Discussion can be found at pypa/pip#11453
Collecting git+https://github.com/NVlabs/tiny-cuda-nn#subdirectory=bindings/torch
Cloning https://github.com/NVlabs/tiny-cuda-nn to /tmp/pip-req-build-9_cmwgll
Running command git clone --quiet https://github.com/NVlabs/tiny-cuda-nn /tmp/pip-req-build-9_cmwgll
Resolved https://github.com/NVlabs/tiny-cuda-nn to commit 14053e9a87ebf449d32bda335c0363dd4f5667a4
Running command git submodule update --init --recursive -q
Preparing metadata (setup.py) ... error
error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [8 lines of output]
No CUDA runtime is found, using CUDA_HOME='/usr/local/cuda'
Traceback (most recent call last):
File "", line 2, in
File "", line 34, in
File "/tmp/pip-req-build-9_cmwgll/bindings/torch/setup.py", line 30, in
raise EnvironmentError("Unknown compute capability. Specify the target compute capabilities in the TCNN_CUDA_ARCHITECTURES environment variable or install PyTorch with the CUDA backend to detect it automatically.")
OSError: Unknown compute capability. Specify the target compute capabilities in the TCNN_CUDA_ARCHITECTURES environment variable or install PyTorch with the CUDA backend to detect it automatically.
Building PyTorch extension for tiny-cuda-nn version 1.7
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
`

[jmunkberg]

Looks like tiny-cuda-nn cannot find Cuda.

Regardless, this is an issue with tiny-cuda-nn, not nvdiffrec, so I recommend to file an issue at https://github.com/NVlabs/tiny-cuda-nn or check there for a recommended solution.