mirror of https://github.com/hpcaitech/ColossalAI
50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
import torch
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import torch.nn as nn
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import torch.nn.functional as F
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from colossalai.legacy.nn import CheckpointModule
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from .registry import non_distributed_component_funcs
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from .utils.dummy_data_generator import DummyDataGenerator
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class HangingParamModule(CheckpointModule):
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"""
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Hanging Parameter: a parameter dose not belong to a leaf Module.
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It has subordinate nn.modules and a nn.Parameter.
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"""
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def __init__(self, checkpoint=False) -> None:
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super().__init__(checkpoint=checkpoint)
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self.proj1 = nn.Linear(4, 8)
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self.weight = nn.Parameter(torch.randn(8, 8))
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self.proj2 = nn.Linear(8, 4)
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def forward(self, x):
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x = self.proj1(x)
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x = F.linear(x, self.weight)
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x = self.proj2(x)
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return x
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class DummyDataLoader(DummyDataGenerator):
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def generate(self):
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data = torch.rand(16, 4)
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label = torch.randint(low=0, high=2, size=(16,))
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return data, label
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@non_distributed_component_funcs.register(name='hanging_param_model')
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def get_training_components():
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def model_builder(checkpoint=False):
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return HangingParamModule(checkpoint)
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trainloader = DummyDataLoader()
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testloader = DummyDataLoader()
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criterion = torch.nn.CrossEntropyLoss()
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from colossalai.nn.optimizer import HybridAdam
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return model_builder, trainloader, testloader, HybridAdam, criterion
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