125 lines
3.7 KiB
Python
125 lines
3.7 KiB
Python
#####################################################
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# Copyright (c) Xuanyi Dong [GitHub D-X-Y], 2021.03 #
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#####################################################
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import abc
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from typing import Optional, Union, Callable
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import torch
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import torch.nn as nn
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from enum import Enum
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import spaces
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IntSpaceType = Union[int, spaces.Integer, spaces.Categorical]
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BoolSpaceType = Union[bool, spaces.Categorical]
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class LayerOrder(Enum):
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"""This class defines the enumerations for order of operation in a residual or normalization-based layer."""
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PreNorm = "pre-norm"
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PostNorm = "post-norm"
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class SuperRunMode(Enum):
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"""This class defines the enumerations for Super Model Running Mode."""
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FullModel = "fullmodel"
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Candidate = "candidate"
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Default = "fullmodel"
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class SuperModule(abc.ABC, nn.Module):
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"""This class equips the nn.Module class with the ability to apply AutoDL."""
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def __init__(self):
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super(SuperModule, self).__init__()
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self._super_run_type = SuperRunMode.Default
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self._abstract_child = None
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self._verbose = False
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def set_super_run_type(self, super_run_type):
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def _reset_super_run(m):
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if isinstance(m, SuperModule):
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m._super_run_type = super_run_type
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self.apply(_reset_super_run)
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def apply_verbose(self, verbose):
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def _reset_verbose(m):
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if isinstance(m, SuperModule):
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m._verbose = verbose
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self.apply(_reset_verbose)
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def apply_candidate(self, abstract_child):
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if not isinstance(abstract_child, spaces.VirtualNode):
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raise ValueError(
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"Invalid abstract child program: {:}".format(abstract_child)
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)
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self._abstract_child = abstract_child
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@property
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def abstract_search_space(self):
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raise NotImplementedError
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@property
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def super_run_type(self):
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return self._super_run_type
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@property
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def abstract_child(self):
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return self._abstract_child
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@property
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def verbose(self):
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return self._verbose
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@abc.abstractmethod
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def forward_raw(self, *inputs):
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"""Use the largest candidate for forward. Similar to the original PyTorch model."""
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raise NotImplementedError
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@abc.abstractmethod
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def forward_candidate(self, *inputs):
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raise NotImplementedError
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@property
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def name_with_id(self):
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return "name={:}, id={:}".format(self.__class__.__name__, id(self))
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def get_shape_str(self, tensors):
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if isinstance(tensors, (list, tuple)):
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shapes = [self.get_shape_str(tensor) for tensor in tensors]
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if len(shapes) == 1:
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return shapes[0]
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else:
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return ", ".join(shapes)
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elif isinstance(tensors, (torch.Tensor, nn.Parameter)):
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return str(tuple(tensors.shape))
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else:
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raise TypeError("Invalid input type: {:}.".format(type(tensors)))
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def forward(self, *inputs):
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if self.verbose:
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print(
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"[{:}] inputs shape: {:}".format(
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self.name_with_id, self.get_shape_str(inputs)
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)
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)
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if self.super_run_type == SuperRunMode.FullModel:
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outputs = self.forward_raw(*inputs)
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elif self.super_run_type == SuperRunMode.Candidate:
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outputs = self.forward_candidate(*inputs)
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else:
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raise ModeError(
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"Unknown Super Model Run Mode: {:}".format(self.super_run_type)
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)
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if self.verbose:
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print(
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"[{:}] outputs shape: {:}".format(
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self.name_with_id, self.get_shape_str(outputs)
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)
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)
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return outputs
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