Bump `torch>=1.8.0` and `torchvision>=0.9.0` (#11970)

.github/workflows/ci-testing.yml

@@ -63,9 +63,9 @@ jobs:
             python-version: '3.9'
             model: yolov5n
           - os: ubuntu-latest
-            python-version: '3.8'  # torch 1.7.0 requires python >=3.6, <=3.8
+            python-version: '3.8'  # torch 1.8.0 requires python >=3.6, <=3.8
             model: yolov5n
-            torch: '1.7.0'  # min torch version CI https://pypi.org/project/torchvision/
+            torch: '1.8.0'  # min torch version CI https://pypi.org/project/torchvision/
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
@@ -75,8 +75,8 @@ jobs:
       - name: Install requirements
         run: |
           python -m pip install --upgrade pip wheel
-          if [ "${{ matrix.torch }}" == "1.7.0" ]; then
-              pip install -r requirements.txt torch==1.7.0 torchvision==0.8.1 --extra-index-url https://download.pytorch.org/whl/cpu
+          if [ "${{ matrix.torch }}" == "1.8.0" ]; then
+              pip install -r requirements.txt torch==1.8.0 torchvision==0.9.0 --extra-index-url https://download.pytorch.org/whl/cpu
           else
               pip install -r requirements.txt --extra-index-url https://download.pytorch.org/whl/cpu
           fi

.github/workflows/greetings.yml

@@ -31,7 +31,7 @@ jobs:
 
             ## Requirements
 
-            [**Python>=3.7.0**](https://www.python.org/) with all [requirements.txt](https://github.com/ultralytics/yolov5/blob/master/requirements.txt) installed including [**PyTorch>=1.7**](https://pytorch.org/get-started/locally/). To get started:
+            [**Python>=3.7.0**](https://www.python.org/) with all [requirements.txt](https://github.com/ultralytics/yolov5/blob/master/requirements.txt) installed including [**PyTorch>=1.8**](https://pytorch.org/get-started/locally/). To get started:
             ```bash
             git clone https://github.com/ultralytics/yolov5  # clone
             cd yolov5

README.md

@@ -78,8 +78,8 @@ See the [YOLOv5 Docs](https://docs.ultralytics.com/yolov5) for full documentatio
 <summary>Install</summary>
 
 Clone repo and install [requirements.txt](https://github.com/ultralytics/yolov5/blob/master/requirements.txt) in a
-[**Python>=3.7.0**](https://www.python.org/) environment, including
-[**PyTorch>=1.7**](https://pytorch.org/get-started/locally/).
+[**Python>=3.8.0**](https://www.python.org/) environment, including
+[**PyTorch>=1.8**](https://pytorch.org/get-started/locally/).
 
 ```bash
 git clone https://github.com/ultralytics/yolov5  # clone

README.zh-CN.md

@@ -72,7 +72,7 @@ pip install ultralytics
 <details open>
 <summary>安装</summary>
 
-克隆 repo，并要求在 [**Python>=3.7.0**](https://www.python.org/) 环境中安装 [requirements.txt](https://github.com/ultralytics/yolov5/blob/master/requirements.txt) ，且要求 [**PyTorch>=1.7**](https://pytorch.org/get-started/locally/) 。
+克隆 repo，并要求在 [**Python>=3.7.0**](https://www.python.org/) 环境中安装 [requirements.txt](https://github.com/ultralytics/yolov5/blob/master/requirements.txt) ，且要求 [**PyTorch>=1.8**](https://pytorch.org/get-started/locally/) 。
 
 ```bash
 git clone https://github.com/ultralytics/yolov5  # clone

models/experimental.py

@@ -87,11 +87,11 @@ def attempt_load(weights, device=None, inplace=True, fuse=True):
 
         model.append(ckpt.fuse().eval() if fuse and hasattr(ckpt, 'fuse') else ckpt.eval())  # model in eval mode
 
-    # Module compatibility updates
+    # Module updates
     for m in model.modules():
         t = type(m)
         if t in (nn.Hardswish, nn.LeakyReLU, nn.ReLU, nn.ReLU6, nn.SiLU, Detect, Model):
-            m.inplace = inplace  # torch 1.7.0 compatibility
+            m.inplace = inplace
             if t is Detect and not isinstance(m.anchor_grid, list):
                 delattr(m, 'anchor_grid')
                 setattr(m, 'anchor_grid', [torch.zeros(1)] * m.nl)

requirements.txt

@@ -12,8 +12,8 @@ PyYAML>=5.3.1
 requests>=2.23.0
 scipy>=1.4.1
 thop>=0.1.1  # FLOPs computation
-torch>=1.7.0  # see https://pytorch.org/get-started/locally (recommended)
-torchvision>=0.8.1
+torch>=1.8.0  # see https://pytorch.org/get-started/locally (recommended)
+torchvision>=0.9.0
 tqdm>=4.64.0
 ultralytics>=8.0.147
 # protobuf<=3.20.1  # https://github.com/ultralytics/yolov5/issues/8012