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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,186 @@ | ||
| import argparse | ||
| import math | ||
| from pathlib import Path | ||
|
|
||
| import torch | ||
| from rich.console import Console | ||
|
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||
| console = Console() | ||
|
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||
| prog_description = """\ | ||
| Draw the state dict tree. | ||
| """ | ||
|
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||
|
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| def parse_args(): | ||
| parser = argparse.ArgumentParser(description=prog_description) | ||
| parser.add_argument( | ||
| 'path', | ||
| type=Path, | ||
| help='The path of the checkpoint or model config to draw.') | ||
| parser.add_argument('--depth', type=int, help='The max depth to draw.') | ||
| parser.add_argument( | ||
| '--full-name', | ||
| action='store_true', | ||
| help='Whether to print the full name of the key.') | ||
| parser.add_argument( | ||
| '--shape', | ||
| action='store_true', | ||
| help='Whether to print the shape of the parameter.') | ||
| parser.add_argument( | ||
| '--state-key', | ||
| type=str, | ||
| help='The key of the state dict in the checkpoint.') | ||
| parser.add_argument( | ||
| '--number', | ||
| action='store_true', | ||
| help='Mark all parameters and their index number.') | ||
| parser.add_argument( | ||
| '--node', | ||
| type=str, | ||
| help='Show the sub-tree of a node, like "backbone.layers".') | ||
| args = parser.parse_args() | ||
| return args | ||
|
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|
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| def ckpt_to_state_dict(checkpoint, key=None): | ||
| if key is not None: | ||
| state_dict = checkpoint[key] | ||
| elif 'state_dict' in checkpoint: | ||
| # try mmcls style | ||
| state_dict = checkpoint['state_dict'] | ||
| elif 'model' in checkpoint: | ||
| state_dict = checkpoint['model'] | ||
| elif isinstance(next(iter(checkpoint.values())), torch.Tensor): | ||
| # try native style | ||
| state_dict = checkpoint | ||
| else: | ||
| raise KeyError('Please specify the key of state ' | ||
| f'dict from {list(checkpoint.keys())}.') | ||
| return state_dict | ||
|
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|
|
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| class StateDictTree: | ||
|
|
||
| def __init__(self, key='', value=None): | ||
| self.children = {} | ||
| self.key: str = key | ||
| self.value = value | ||
|
|
||
| def add_parameter(self, key, value): | ||
| keys = key.split('.', 1) | ||
| if len(keys) == 1: | ||
| self.children[key] = StateDictTree(key, value) | ||
| elif keys[0] in self.children: | ||
| self.children[keys[0]].add_parameter(keys[1], value) | ||
| else: | ||
| node = StateDictTree(keys[0]) | ||
| node.add_parameter(keys[1], value) | ||
| self.children[keys[0]] = node | ||
|
|
||
| def __getitem__(self, key: str): | ||
| return self.children[key] | ||
|
|
||
| def __repr__(self) -> str: | ||
| with console.capture() as capture: | ||
| for line in self.iter_tree(): | ||
| console.print(line) | ||
| return capture.get() | ||
|
|
||
| def __len__(self): | ||
| return len(self.children) | ||
|
|
||
| def draw_tree(self, | ||
| max_depth=None, | ||
| full_name=False, | ||
| with_shape=False, | ||
| with_value=False): | ||
| for line in self.iter_tree( | ||
| max_depth=max_depth, | ||
| full_name=full_name, | ||
| with_shape=with_shape, | ||
| with_value=with_value, | ||
| ): | ||
| console.print(line, highlight=False) | ||
|
|
||
| def iter_tree( | ||
| self, | ||
| lead='', | ||
| prefix='', | ||
| max_depth=None, | ||
| full_name=False, | ||
| with_shape=False, | ||
| with_value=False, | ||
| ): | ||
| if self.value is None: | ||
| key_str = f'[blue]{self.key}[/]' | ||
| elif with_shape: | ||
| key_str = f'[green]{self.key}[/] {tuple(self.value.shape)}' | ||
| elif with_value: | ||
| key_str = f'[green]{self.key}[/] {self.value}' | ||
| else: | ||
| key_str = f'[green]{self.key}[/]' | ||
|
|
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| yield lead + prefix + key_str | ||
|
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| lead = lead.replace('├─', '│ ') | ||
| lead = lead.replace('└─', ' ') | ||
| if self.key and full_name: | ||
| prefix = f'{prefix}{self.key}.' | ||
|
|
||
| if max_depth == 0: | ||
| return | ||
| elif max_depth is not None: | ||
| max_depth -= 1 | ||
|
|
||
| for i, child in enumerate(self.children.values()): | ||
| level_lead = '├─' if i < len(self.children) - 1 else '└─' | ||
| yield from child.iter_tree( | ||
| lead=f'{lead}{level_lead} ', | ||
| prefix=prefix, | ||
| max_depth=max_depth, | ||
| full_name=full_name, | ||
| with_shape=with_shape, | ||
| with_value=with_value) | ||
|
|
||
|
|
||
| def main(): | ||
| args = parse_args() | ||
| if args.path.suffix in ['.json', '.py', '.yml']: | ||
| from mmengine.runner import get_state_dict | ||
|
|
||
| from mmcls.apis import init_model | ||
| model = init_model(args.path, device='cpu') | ||
| state_dict = get_state_dict(model) | ||
| else: | ||
| ckpt = torch.load(args.path, map_location='cpu') | ||
| state_dict = ckpt_to_state_dict(ckpt, args.state_key) | ||
|
|
||
| root = StateDictTree() | ||
| for k, v in state_dict.items(): | ||
| root.add_parameter(k, v) | ||
|
|
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| para_index = 0 | ||
| mark_width = math.floor(math.log(len(state_dict), 10) + 1) | ||
| if args.node is not None: | ||
| for key in args.node.split('.'): | ||
| root = root[key] | ||
|
|
||
| for line in root.iter_tree( | ||
| max_depth=args.depth, | ||
| full_name=args.full_name, | ||
| with_shape=args.shape, | ||
| ): | ||
| if not args.number: | ||
| mark = '' | ||
| # A hack method to determine whether a line is parameter. | ||
| elif '[green]' in line: | ||
| mark = f'[red]({str(para_index).ljust(mark_width)})[/]' | ||
| para_index += 1 | ||
| else: | ||
| mark = ' ' * (mark_width + 2) | ||
| console.print(mark + line, highlight=False) | ||
|
|
||
|
|
||
| if __name__ == '__main__': | ||
| main() |
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