wehub-resource-sync
23 lines
751 B
Python
23 lines
751 B
Python
# Copyright (c) ModelScope Contributors. All rights reserved.
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import torch
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from peft import IA3Config, get_peft_model
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from typing import TYPE_CHECKING
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from swift.model import ModelKeys
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from swift.utils import find_all_linears
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from .base import PeftTuner
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if TYPE_CHECKING:
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from swift.arguments import SftArguments
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# Here gives a simple example of IA3
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class IA3Tuner(PeftTuner):
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@staticmethod
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def prepare_model(args: 'SftArguments', model: torch.nn.Module) -> torch.nn.Module:
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model_arch: ModelKeys = model.model_meta.model_arch
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ia3_config = IA3Config(
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target_modules=find_all_linears(model), feedforward_modules='.*' + model_arch.mlp.split('{}.')[1] + '.*')
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return get_peft_model(model, ia3_config)
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