wehub-resource-sync
60 lines
2.4 KiB
Python
60 lines
2.4 KiB
Python
# Copyright (c) ModelScope Contributors. All rights reserved.
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"""
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Here is another way to register the model, by customizing the get_function.
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The get_function just needs to return the model + tokenizer/processor.
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"""
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from transformers import AutoConfig, AutoModelForCausalLM, AutoTokenizer, PretrainedConfig, PreTrainedModel
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from swift.infer_engine import InferRequest, RequestConfig, TransformersEngine
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from swift.model import Model, ModelGroup, ModelLoader, ModelMeta, register_model
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from swift.template import TemplateMeta, register_template
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from swift.utils import Processor
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register_template(
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TemplateMeta(
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template_type='custom',
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prefix=['<extra_id_0>System\n{{SYSTEM}}\n'],
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prompt=['<extra_id_1>User\n{{QUERY}}\n<extra_id_1>Assistant\n'],
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chat_sep=['\n']))
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class MyModelLoader(ModelLoader):
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def get_config(self, model_dir: str) -> PretrainedConfig:
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return AutoConfig.from_pretrained(model_dir, trust_remote_code=True)
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def get_processor(self, model_dir: str, config: PretrainedConfig) -> Processor:
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return AutoTokenizer.from_pretrained(model_dir, trust_remote_code=True)
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def get_model(self, model_dir: str, config: PretrainedConfig, processor: Processor,
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model_kwargs) -> PreTrainedModel:
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return AutoModelForCausalLM.from_pretrained(
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model_dir, config=config, torch_dtype=self.torch_dtype, trust_remote_code=True, **model_kwargs)
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register_model(
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ModelMeta(
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model_type='custom',
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model_groups=[
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ModelGroup([Model('AI-ModelScope/Nemotron-Mini-4B-Instruct', 'nvidia/Nemotron-Mini-4B-Instruct')])
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],
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loader=MyModelLoader,
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template='custom',
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ignore_patterns=['nemo'],
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is_multimodal=False,
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))
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if __name__ == '__main__':
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infer_request = InferRequest(messages=[{'role': 'user', 'content': 'who are you?'}])
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request_config = RequestConfig(max_tokens=512, temperature=0)
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engine = TransformersEngine('AI-ModelScope/Nemotron-Mini-4B-Instruct')
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response = engine.infer([infer_request], request_config)
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swift_response = response[0].choices[0].message.content
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engine.template.template_backend = 'jinja'
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response = engine.infer([infer_request], request_config)
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jinja_response = response[0].choices[0].message.content
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assert swift_response == jinja_response, f'swift_response: {swift_response}\njinja_response: {jinja_response}'
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print(f'response: {swift_response}')
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