Install PyTorch, TorchAudio and TorchVision from conda

Author: scotts

.github/workflows/benchmarks.yaml

@@ -36,7 +36,8 @@ jobs:
       - name: Install FFmpeg, PyTorch and TorchAudio
         run: |
           conda install "ffmpeg=6" pkg-config -c conda-forge
-          python -m pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/cpu
+          conda install pytorch torchvision torchaudio cpuonly -c pytorch-nightly
+          #python -m pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/cpu
           ffmpeg -version
 
           #- name: Download, build and install TorchVision