6930422b42
* codeshell fix wrong urls * restart runner * add RWKV CPU & GPU example (rwkv-4-world-7b) * restart runner * update submodule * fix runner * runner-test --------- Co-authored-by: Shengsheng Huang <shengsheng.huang@intel.com>
80 lines
3.2 KiB
Python
80 lines
3.2 KiB
Python
#
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# Copyright 2016 The BigDL Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import torch
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import intel_extension_for_pytorch as ipex
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import time
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import argparse
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from transformers import AutoModel, AutoTokenizer, AutoModelForCausalLM
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from bigdl.llm import optimize_model
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# you could tune the prompt based on your own model,
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# here the prompt tuning refers to https://huggingface.co/RWKV/rwkv-4-world-7b
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RWKV_PROMPT_FORMAT = "Question: {prompt}\n\nAnswer:"
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='Predict Tokens using `generate()` API for RWKV model')
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parser.add_argument('--repo-id-or-model-path', type=str, default="RWKV/rwkv-4-world-7b",
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help='The huggingface repo id for the RWKV model to be downloaded'
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', or the path to the huggingface checkpoint folder')
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parser.add_argument('--prompt', type=str, default="你叫什么名字？",
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help='Prompt to infer')
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parser.add_argument('--n-predict', type=int, default=40,
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help='Max tokens to predict')
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args = parser.parse_args()
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model_path = args.repo_id_or_model_path
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# First load the model in fp16 dtype
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model = AutoModelForCausalLM.from_pretrained(model_path,
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trust_remote_code=True,
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low_cpu_mem_usage=True,
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torch_dtype=torch.half)
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# Call the `_rescale_layers` method, prepare to convert to int4
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model.rwkv._rescale_layers()
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# With only one line to enable BigDL-LLM optimization on model
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model = optimize_model(model)
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model = model.to('xpu')
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# Load tokenizer
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tokenizer = AutoTokenizer.from_pretrained(model_path, trust_remote_code=True)
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# Generate predicted tokens
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with torch.inference_mode():
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prompt = RWKV_PROMPT_FORMAT.format(prompt = args.prompt)
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inputs = tokenizer(prompt, return_tensors="pt").to('xpu')
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# ipex model needs a warmup, then inference time can be accurate
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output = model.generate(inputs["input_ids"],
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max_new_tokens=args.n_predict)
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# start inference
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st = time.time()
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output = model.generate(inputs["input_ids"],
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max_new_tokens=args.n_predict)
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torch.xpu.synchronize()
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output = output.cpu()
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end = time.time()
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output_str = tokenizer.decode(output[0], skip_special_tokens=True)
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print(f'Inference time: {end-st} s')
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print('-'*20, 'Prompt', '-'*20)
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print(prompt)
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print('-'*20, 'Output', '-'*20)
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print(output_str)
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