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Updated local GPU notes #914

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Sep 28, 2024
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Updated local GPU notes #914

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27 changes: 16 additions & 11 deletions CONTRIBUTING.md
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Expand Up @@ -103,33 +103,38 @@ Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManage

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
```
6. Restart Windows.

7. Clone the repository `git clone --recursive https://github.com/chidiwilliams/buzz.git`
8. Enter repo folder `cd buzz`
9. Activate the virtual environment `poetry shell`
10. Install the dependencies `poetry install`
11. Build Buzz `poetry build`
12. Run Buzz `python -m buzz`
6. Add poetry to PATH. `%APPDATA%\Python\Scripts`
7. Restart Windows.
8. Clone the repository `git clone --recursive https://github.com/chidiwilliams/buzz.git`
9. Enter repo folder `cd buzz`
10. Activate the virtual environment `poetry shell`
11. Install the dependencies `poetry install`
12. Build Buzz `poetry build`
13. Run Buzz `python -m buzz`

#### GPU Support

GPU support on Windows is possible for Buzz that ir installed from the source code or with `pip`.
Use the instructions above to install the Buzz from the source code or run `pip install buzz-captions`
and then follow the instructions below to enable CUDA GPU support.
and then follow the instructions below to enable CUDA GPU support. For pip installation it is recommended to use
a separate [virtual environment](https://packaging.python.org/en/latest/guides/installing-using-pip-and-virtual-environments/).

To enable GPU support first ensure CUDA 12.1 is installed - https://developer.nvidia.com/cuda-12-1-0-download-archive
Other versions of CUDA 12 should also work.

Switch torch library to GPU version. It must match the CUDA version installed, see https://pytorch.org/get-started/locally/ .
```
pip3 unstall torch torchaudio
pip3 uninstall torch torchaudio
pip3 install torch==2.2.1+cu121 torchaudio==2.2.1+cu121 --index-url https://download.pytorch.org/whl/cu121
```

To use Faster Whisper on GPU, install the following libraries:
* [cuBLAS](https://developer.nvidia.com/cublas)
* [cuDNN](https://developer.nvidia.com/cudnn)

Ensure ffmpeg dependencies are installed
```
pip3 unstall ffmpeg ffmpeg-python
pip3 uninstall ffmpeg ffmpeg-python
pip3 install ffmpeg
pip3 install ffmpeg-python
```
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