Pretrained weights incompatibility for resnet10

[codingS3b]

Describe the bug
When creating a ResNet10 model with pretrained weights, the construction fails with

RuntimeError: Error(s) in loading state_dict for ResNet:
Missing key(s) in state_dict: "layer2.0.downsample.0.bias", "layer3.0.downsample.0.bias", "layer4.0.downsample.0.bias". 

To Reproduce
Steps to reproduce the behavior:

from monai.networks.nets import resnet10
# using monai 1.3.2

model = resnet10(pretrained=True, n_input_channels=1, feed_forward=False, spatial_dims=3)
# RuntimeError occurs

Expected behavior
The model should be created successfully with the pretrained weights from Med3D

Environment

Ensuring you use the relevant python executable, please paste the output of:

python -c "import monai; monai.config.print_debug_info()"

================================
Printing MONAI config...
================================
MONAI version: 1.3.2
Numpy version: 2.0.0
Pytorch version: 2.3.1+cu121
MONAI flags: HAS_EXT = False, USE_COMPILED = False, USE_META_DICT = False
MONAI rev id: 59a7211070538586369afd4a01eca0a7fe2e742e
MONAI __file__: /home/<username>/miniconda3/envs/monai/lib/python3.10/site-packages/monai/__init__.py

Optional dependencies:
Pytorch Ignite version: NOT INSTALLED or UNKNOWN VERSION.
ITK version: NOT INSTALLED or UNKNOWN VERSION.
Nibabel version: NOT INSTALLED or UNKNOWN VERSION.
scikit-image version: NOT INSTALLED or UNKNOWN VERSION.
scipy version: NOT INSTALLED or UNKNOWN VERSION.
Pillow version: NOT INSTALLED or UNKNOWN VERSION.
Tensorboard version: NOT INSTALLED or UNKNOWN VERSION.
gdown version: NOT INSTALLED or UNKNOWN VERSION.
TorchVision version: NOT INSTALLED or UNKNOWN VERSION.
tqdm version: 4.66.4
lmdb version: NOT INSTALLED or UNKNOWN VERSION.
psutil version: NOT INSTALLED or UNKNOWN VERSION.
pandas version: NOT INSTALLED or UNKNOWN VERSION.
einops version: NOT INSTALLED or UNKNOWN VERSION.
transformers version: NOT INSTALLED or UNKNOWN VERSION.
mlflow version: NOT INSTALLED or UNKNOWN VERSION.
pynrrd version: NOT INSTALLED or UNKNOWN VERSION.
clearml version: NOT INSTALLED or UNKNOWN VERSION.

For details about installing the optional dependencies, please visit:
    https://docs.monai.io/en/latest/installation.html#installing-the-recommended-dependencies


================================
Printing system config...
================================
`psutil` required for `print_system_info`

================================
Printing GPU config...
================================
Num GPUs: 0
Has CUDA: False
cuDNN enabled: True
NVIDIA_TF32_OVERRIDE: None
TORCH_ALLOW_TF32_CUBLAS_OVERRIDE: None
cuDNN version: 8902

[KumoLiu]

Hi @codingS3b, thanks for reporting the issue.
You can use set bias_downsample=False to load the pretrained weight, the issue is that bias_downsample is set as True by default. I will try to create a PR to fix it.

model = resnet10(pretrained=True, n_input_channels=1, feed_forward=False, spatial_dims=3, bias_downsample=False)

[codingS3b]

@KumoLiu thanks for the quick solution! It seems in the constructor there is actually a code path that should handle this (here) but somehow, this did not get triggered for the code above.