mirror of https://github.com/hpcaitech/ColossalAI
28 lines
883 B
Python
28 lines
883 B
Python
from .apex_amp import ApexAMPOptimizer
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import torch.nn as nn
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from torch.optim import Optimizer
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def convert_to_apex_amp(model: nn.Module,
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optimizer: Optimizer,
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amp_config):
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"""A helper function to wrap training components with Apex AMP modules
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:param model: your model object
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:type model: :class:`torch.nn.Module`
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:param optimizer: your optimizer object
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:type optimizer: :class:`torch.optim.Optimzer`
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:param amp_config: configuration for nvidia apex
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:type amp_config: :class:`colossalai.context.Config` or dict
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:return: (model, optimizer)
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:rtype: Tuple
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"""
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import apex.amp as apex_amp
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model, optimizer = apex_amp.initialize(model, optimizer, **amp_config)
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optimizer = ApexAMPOptimizer(optimizer)
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return model, optimizer
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__all__ = ['convert_to_apex_amp', 'ApexAMPOptimizer']
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