| import argparse
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| from transformers import AutoTokenizer, AutoModelForCausalLM, StoppingCriteria
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| import torch
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| import os
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| import json
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| from tqdm import tqdm
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| import shortuuid
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|
|
| from llava.conversation import default_conversation
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| from llava.utils import disable_torch_init
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|
|
|
|
|
|
| class KeywordsStoppingCriteria(StoppingCriteria):
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| def __init__(self, keywords, tokenizer, input_ids):
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| self.keywords = keywords
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| self.tokenizer = tokenizer
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| self.start_len = None
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| self.input_ids = input_ids
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|
|
| def __call__(self, output_ids: torch.LongTensor, scores: torch.FloatTensor, **kwargs) -> bool:
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| if self.start_len is None:
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| self.start_len = self.input_ids.shape[1]
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| else:
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| outputs = self.tokenizer.batch_decode(output_ids[:, self.start_len:], skip_special_tokens=True)[0]
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| for keyword in self.keywords:
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| if keyword in outputs:
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| return True
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| return False
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|
|
|
|
| @torch.inference_mode()
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| def eval_model(model_name, questions_file, answers_file):
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|
|
| disable_torch_init()
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| model_name = os.path.expanduser(model_name)
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| tokenizer = AutoTokenizer.from_pretrained(model_name, use_fast=False)
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| model = AutoModelForCausalLM.from_pretrained(model_name,
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| torch_dtype=torch.float16).cuda()
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|
|
|
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| ques_file = open(os.path.expanduser(questions_file), "r")
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| ans_file = open(os.path.expanduser(answers_file), "w")
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| for i, line in enumerate(tqdm(ques_file)):
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| idx = json.loads(line)["question_id"]
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| qs = json.loads(line)["text"]
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| cat = json.loads(line)["category"]
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| conv = default_conversation.copy()
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| conv.append_message(conv.roles[0], qs)
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| prompt = conv.get_prompt()
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| inputs = tokenizer([prompt])
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| input_ids = torch.as_tensor(inputs.input_ids).cuda()
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| stopping_criteria = KeywordsStoppingCriteria([conv.sep], tokenizer, input_ids)
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| output_ids = model.generate(
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| input_ids,
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| do_sample=True,
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| use_cache=True,
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| temperature=0.7,
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| max_new_tokens=1024,
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| stopping_criteria=[stopping_criteria])
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| outputs = tokenizer.batch_decode(output_ids, skip_special_tokens=True)[0]
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| try:
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| index = outputs.index(conv.sep, len(prompt))
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| except ValueError:
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| outputs += conv.sep
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| index = outputs.index(conv.sep, len(prompt))
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|
|
| outputs = outputs[len(prompt) + len(conv.roles[1]) + 2:index].strip()
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| ans_id = shortuuid.uuid()
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| ans_file.write(json.dumps({"question_id": idx,
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| "text": outputs,
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| "answer_id": ans_id,
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| "model_id": model_name,
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| "metadata": {}}) + "\n")
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| ans_file.flush()
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| ans_file.close()
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|
|
| if __name__ == "__main__":
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| parser = argparse.ArgumentParser()
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| parser.add_argument("--model-name", type=str, default="facebook/opt-350m")
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| parser.add_argument("--question-file", type=str, default="tables/question.jsonl")
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| parser.add_argument("--answers-file", type=str, default="answer.jsonl")
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| args = parser.parse_args()
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|
|
| eval_model(args.model_name, args.question_file, args.answers_file)
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|
|
