From 4c8149d643576c23d4df559d4931ccf08fa7aee4 Mon Sep 17 00:00:00 2001 From: Yih-Dar <2521628+ydshieh@users.noreply.github.com> Date: Tue, 9 Jul 2024 20:09:08 +0200 Subject: [PATCH] Fix `_init_weights` for `ResNetPreTrainedModel` (#31851) * init * test --------- Co-authored-by: ydshieh --- .../models/regnet/modeling_regnet.py | 8 +++ .../models/resnet/modeling_resnet.py | 8 +++ .../models/rt_detr/modeling_rt_detr_resnet.py | 8 +++ tests/test_modeling_common.py | 72 ++++++++++++++++--- 4 files changed, 86 insertions(+), 10 deletions(-) diff --git a/src/transformers/models/regnet/modeling_regnet.py b/src/transformers/models/regnet/modeling_regnet.py index 2a348c792a..9420fb5eda 100644 --- a/src/transformers/models/regnet/modeling_regnet.py +++ b/src/transformers/models/regnet/modeling_regnet.py @@ -14,6 +14,7 @@ # limitations under the License. """PyTorch RegNet model.""" +import math from typing import Optional import torch @@ -284,6 +285,13 @@ class RegNetPreTrainedModel(PreTrainedModel): def _init_weights(self, module): if isinstance(module, nn.Conv2d): nn.init.kaiming_normal_(module.weight, mode="fan_out", nonlinearity="relu") + # copied from the `reset_parameters` method of `class Linear(Module)` in `torch`. + elif isinstance(module, nn.Linear): + nn.init.kaiming_uniform_(module.weight, a=math.sqrt(5)) + if module.bias is not None: + fan_in, _ = nn.init._calculate_fan_in_and_fan_out(module.weight) + bound = 1 / math.sqrt(fan_in) if fan_in > 0 else 0 + nn.init.uniform_(module.bias, -bound, bound) elif isinstance(module, (nn.BatchNorm2d, nn.GroupNorm)): nn.init.constant_(module.weight, 1) nn.init.constant_(module.bias, 0) diff --git a/src/transformers/models/resnet/modeling_resnet.py b/src/transformers/models/resnet/modeling_resnet.py index c7cf0e03c7..ccd4fac175 100644 --- a/src/transformers/models/resnet/modeling_resnet.py +++ b/src/transformers/models/resnet/modeling_resnet.py @@ -14,6 +14,7 @@ # limitations under the License. """PyTorch ResNet model.""" +import math from typing import Optional import torch @@ -274,6 +275,13 @@ class ResNetPreTrainedModel(PreTrainedModel): def _init_weights(self, module): if isinstance(module, nn.Conv2d): nn.init.kaiming_normal_(module.weight, mode="fan_out", nonlinearity="relu") + # copied from the `reset_parameters` method of `class Linear(Module)` in `torch`. + elif isinstance(module, nn.Linear): + nn.init.kaiming_uniform_(module.weight, a=math.sqrt(5)) + if module.bias is not None: + fan_in, _ = nn.init._calculate_fan_in_and_fan_out(module.weight) + bound = 1 / math.sqrt(fan_in) if fan_in > 0 else 0 + nn.init.uniform_(module.bias, -bound, bound) elif isinstance(module, (nn.BatchNorm2d, nn.GroupNorm)): nn.init.constant_(module.weight, 1) nn.init.constant_(module.bias, 0) diff --git a/src/transformers/models/rt_detr/modeling_rt_detr_resnet.py b/src/transformers/models/rt_detr/modeling_rt_detr_resnet.py index 75102efab3..84427dd240 100644 --- a/src/transformers/models/rt_detr/modeling_rt_detr_resnet.py +++ b/src/transformers/models/rt_detr/modeling_rt_detr_resnet.py @@ -17,6 +17,7 @@ PyTorch RTDetr specific ResNet model. The main difference between hugginface Res See https://github.com/lyuwenyu/RT-DETR/blob/5b628eaa0a2fc25bdafec7e6148d5296b144af85/rtdetr_pytorch/src/nn/backbone/presnet.py#L126 for details. """ +import math from typing import Optional from torch import Tensor, nn @@ -323,6 +324,13 @@ class RTDetrResNetPreTrainedModel(PreTrainedModel): def _init_weights(self, module): if isinstance(module, nn.Conv2d): nn.init.kaiming_normal_(module.weight, mode="fan_out", nonlinearity="relu") + # copied from the `reset_parameters` method of `class Linear(Module)` in `torch`. + elif isinstance(module, nn.Linear): + nn.init.kaiming_uniform_(module.weight, a=math.sqrt(5)) + if module.bias is not None: + fan_in, _ = nn.init._calculate_fan_in_and_fan_out(module.weight) + bound = 1 / math.sqrt(fan_in) if fan_in > 0 else 0 + nn.init.uniform_(module.bias, -bound, bound) elif isinstance(module, (nn.BatchNorm2d, nn.GroupNorm)): nn.init.constant_(module.weight, 1) nn.init.constant_(module.bias, 0) diff --git a/tests/test_modeling_common.py b/tests/test_modeling_common.py index 299d99280b..8557902903 100755 --- a/tests/test_modeling_common.py +++ b/tests/test_modeling_common.py @@ -3167,9 +3167,47 @@ class ModelTesterMixin: configs_no_init = _config_zero_init(config) for model_class in self.all_model_classes: - if model_class.__name__ not in get_values(MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING_NAMES): + mappings = [ + MODEL_FOR_SEQUENCE_CLASSIFICATION_MAPPING_NAMES, + MODEL_FOR_IMAGE_CLASSIFICATION_MAPPING_NAMES, + MODEL_FOR_AUDIO_CLASSIFICATION_MAPPING_NAMES, + MODEL_FOR_VIDEO_CLASSIFICATION_MAPPING_NAMES, + ] + is_classication_model = any(model_class.__name__ in get_values(mapping) for mapping in mappings) + + if not is_classication_model: continue + # TODO: ydshieh + is_special_classes = model_class.__name__ in [ + "wav2vec2.masked_spec_embed", + "Wav2Vec2ForSequenceClassification", + "CLIPForImageClassification", + "RegNetForImageClassification", + "ResNetForImageClassification", + ] + special_param_names = [ + r"wav2vec2\.masked_spec_embed", + r"wav2vec2\.feature_extractor\.conv_layers\..+\.conv\.weight", + r"wav2vec2\.feature_projection\.projection\.weight", + r"wav2vec2\.feature_projection\.projection\.bias", + r"wav2vec2\.encoder\.pos_conv_embed\.conv\.parametrizations\.weight\.original.", + r"classifier\.weight", + r"regnet\.embedder\.embedder\.convolution\.weight", + r"regnet\.encoder\.stages\..+\.layers\..+\.layer\..+\.convolution\.weight", + r"regnet\.encoder\.stages\..+\.layers\..+\.shortcut\.convolution\.weight", + r"regnet\.encoder\.stages\..+\.layers\..+\.layer\..+\.attention\..+\.weight", + r"regnet\.encoder\.stages\..+\.layers\..+\.layer\..+\.attention\..+\.bias", + r"classifier\..+\.weight", + r"classifier\..+\.bias", + r"resnet\.embedder\.embedder\.convolution\.weight", + r"resnet\.encoder\.stages\..+\.layers\..+\.shortcut\.convolution\.weight", + r"resnet\.encoder\.stages\..+\.layers\..+\.layer\..+\.convolution\.weight", + r"resnet\.encoder\.stages\..+\.layers\..+\.shortcut\.convolution\.weight", + r"resnet\.encoder\.stages\..+\.layers\..+\.layer\..+\.attention\..+\.weight", + r"resnet\.encoder\.stages\..+\.layers\..+\.layer\..+\.attention\..+\.bias", + ] + with self.subTest(msg=f"Testing {model_class}"): with tempfile.TemporaryDirectory() as tmp_dir: model = model_class(configs_no_init) @@ -3177,23 +3215,37 @@ class ModelTesterMixin: # Fails when we don't set ignore_mismatched_sizes=True with self.assertRaises(RuntimeError): - new_model = AutoModelForSequenceClassification.from_pretrained(tmp_dir, num_labels=42) + new_model = model_class.from_pretrained(tmp_dir, num_labels=42) logger = logging.get_logger("transformers.modeling_utils") with CaptureLogger(logger) as cl: - new_model = AutoModelForSequenceClassification.from_pretrained( - tmp_dir, num_labels=42, ignore_mismatched_sizes=True - ) + new_model = model_class.from_pretrained(tmp_dir, num_labels=42, ignore_mismatched_sizes=True) self.assertIn("the shapes did not match", cl.out) for name, param in new_model.named_parameters(): if param.requires_grad: - self.assertIn( - ((param.data.mean() * 1e9).round() / 1e9).item(), - [0.0, 1.0], - msg=f"Parameter {name} of model {model_class} seems not properly initialized", - ) + param_mean = ((param.data.mean() * 1e9).round() / 1e9).item() + if not ( + is_special_classes + and any(len(re.findall(target, name)) > 0 for target in special_param_names) + ): + self.assertIn( + param_mean, + [0.0, 1.0], + msg=f"Parameter {name} of model {model_class} seems not properly initialized", + ) + else: + self.assertGreaterEqual( + param_mean, + -1.0, + msg=f"Parameter {name} of model {model_class} seems not properly initialized", + ) + self.assertLessEqual( + param_mean, + 1.0, + msg=f"Parameter {name} of model {model_class} seems not properly initialized", + ) def test_matched_shapes_have_loaded_weights_when_some_mismatched_shapes_exist(self): # 1. Create a dummy class. Should have buffers as well? To make sure we test __init__