Mistral-7B-v0.1 大型语言模型(LLM)是一个拥有 70 亿参数的预训练生成式文本模型。 在我们测试的所有基准上,Mistral-7B-v0.1 的性能均优于 Llama 2 13B。
Mistral-7B-v0.1 是一个Transformer模型,其架构选择如下:
from openmind import AutoModelForCausalLM, AutoTokenizer, pipeline , is_torch_npu_available
from openmind_hub import snapshot_download
import torch.nn.functional as F
from torch import Tensor
import openmind
import torch
import argparse
import time
# Mean Pooling - Take attention mask into account for correct averaging
def mean_pooling(model_output, attention_mask):
token_embeddings = model_output[0] # First element of model_output contains all token embeddings
input_mask_expanded = attention_mask.unsqueeze(-1).expand(token_embeddings.size()).float()
return torch.sum(token_embeddings * input_mask_expanded, 1) / torch.clamp(input_mask_expanded.sum(1), min=1e-9)
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument(
"--model_name_or_path",
type=str,
help="Path to model",
default="jeffding/Mistral-7B-v0.1-openmind",
)
args = parser.parse_args()
return args
def main():
args = parse_args()
model_path = args.model_name_or_path
if is_torch_npu_available():
device = "npu:0"
else:
device = "cpu"
# Load model from HuggingFace Hub
model = AutoModelForCausalLM.from_pretrained(model_path,
device_map=device,
trust_remote_code=False,
revision="main")
tokenizer = AutoTokenizer.from_pretrained(model_path, use_fast=True)
start_time = time.time()
prompt = "Tell me about AI"
prompt_template=f'''<s>[INST] {prompt} [/INST]
'''
print("\n\n*** Generate:")
input_ids = tokenizer(prompt_template, return_tensors='pt').input_ids.to(device)
output = model.generate(inputs=input_ids, temperature=0.7, do_sample=True, top_p=0.95, top_k=40, max_new_tokens=512)
print(tokenizer.decode(output[0]))
# Inference can also be done using transformers' pipeline
print("*** Pipeline:")
pipe = pipeline(
"text-generation",
model=model,
tokenizer=tokenizer,
max_new_tokens=512,
do_sample=True,
temperature=0.7,
top_p=0.95,
top_k=40,
repetition_penalty=1.1
)
print(pipe(prompt_template)[0]['generated_text'])
end_time = time.time()
print(f"硬件环境:{device},推理执行时间:{end_time - start_time}秒")
if __name__ == "__main__":
main()KeyError: 'mistral'NotImplementedError: Cannot copy out of meta tensor; no data!请确保您使用的是稳定版本的Transformers,4.34.0或更新版本。
Mistral 7B是一个预训练基础模型,因此不具备任何内容审核机制。
Albert Jiang、Alexandre Sablayrolles、Arthur Mensch、Chris Bamford、Devendra Singh Chaplot、Diego de las Casas、Florian Bressand、Gianna Lengyel、Guillaume Lample、Lélio Renard Lavaud、Lucile Saulnier、Marie-Anne Lachaux、Pierre Stock、Teven Le Scao、Thibaut Lavril、Thomas Wang、Timothée Lacroix、William El Sayed。