clear ~/.cache/torch_extensions between builds (#14520)

.github/workflows/self-push.yml

@@ -50,7 +50,7 @@ jobs:
           python -c "import torch; print('Cuda version:', torch.version.cuda)"
           python -c "import torch; print('CuDNN version:', torch.backends.cudnn.version())"
           python -c "import torch; print('Number of GPUs available:', torch.cuda.device_count())"
-      
+
       - name: Fetch the tests to run
         run: |
           python utils/tests_fetcher.py --diff_with_last_commit | tee test_preparation.txt
@@ -105,7 +105,7 @@ jobs:
         run: |
           python -c "from jax.lib import xla_bridge; print('GPU available:', xla_bridge.get_backend().platform)"
           python -c "import jax; print('Number of GPUs available:', len(jax.local_devices()))"
-      
+
       - name: Fetch the tests to run
         run: |
           python utils/tests_fetcher.py --diff_with_last_commit | tee test_preparation.txt
@@ -203,7 +203,7 @@ jobs:
           apt install -y libsndfile1-dev
           pip install --upgrade pip
           pip install .[sklearn,testing,onnxruntime,sentencepiece,torch-speech,vision,timm]
-      
+
       - name: Launcher docker
         uses: actions/checkout@v2
         with:
@@ -277,7 +277,7 @@ jobs:
 #        run: |
 #          python -c "from jax.lib import xla_bridge; print('GPU available:', xla_bridge.get_backend().platform)"
 #          python -c "import jax; print('Number of GPUs available:', len(jax.local_devices()))"
-#      
+#
 #      - name: Fetch the tests to run
 #        run: |
 #          python utils/tests_fetcher.py --diff_with_last_commit | tee test_preparation.txt
@@ -389,11 +389,11 @@ jobs:
           python -c "import torch; print('Cuda version:', torch.version.cuda)"
           python -c "import torch; print('CuDNN version:', torch.backends.cudnn.version())"
           python -c "import torch; print('Number of GPUs available:', torch.cuda.device_count())"
-      
+
       - name: Fetch the tests to run
         run: |
           python utils/tests_fetcher.py --diff_with_last_commit --filters tests/deepspeed tests/extended | tee test_preparation.txt
-      
+
       - name: Report fetched tests
         uses: actions/upload-artifact@v2
         with:
@@ -437,6 +437,7 @@ jobs:
         run: |
           apt -y update && apt install -y libaio-dev
           pip install --upgrade pip
+          rm -rf ~/.cache/torch_extensions/ # shared between conflicting builds
           pip install .[testing,deepspeed,fairscale]
 
       - name: Are GPUs recognized by our DL frameworks