|
import torch |
|
from transformers import AutoTokenizer, AutoModelForCausalLM, BitsAndBytesConfig |
|
from peft import PeftModel |
|
|
|
class EndpointHandler: |
|
def __init__(self, path=""): |
|
base_model_id = "mistralai/Mistral-7B-v0.1" |
|
bnb_config = BitsAndBytesConfig( |
|
load_in_4bit=True, |
|
bnb_4bit_use_double_quant=True, |
|
bnb_4bit_quant_type="nf4", |
|
bnb_4bit_compute_dtype=torch.bfloat16 |
|
) |
|
|
|
base_model = AutoModelForCausalLM.from_pretrained( |
|
base_model_id, |
|
quantization_config=bnb_config, |
|
device_map="auto", |
|
trust_remote_code=True, |
|
use_auth_token=False |
|
) |
|
|
|
self.eval_tokenizer = AutoTokenizer.from_pretrained( |
|
base_model_id, |
|
add_bos_token=True, |
|
trust_remote_code=True, |
|
) |
|
|
|
self.ft_model = PeftModel.from_pretrained(base_model, "FloVolo/mistral-flo-finetune-2-T4").to("cuda") |
|
|
|
def __call__(self, data): |
|
inputs = data.pop("inputs", data) |
|
|
|
model_input = self.eval_tokenizer(inputs, return_tensors="pt").to("cuda") |
|
|
|
with torch.no_grad(): |
|
return self.eval_tokenizer.decode(self.ft_model.generate(**model_input, max_new_tokens=100)[0], skip_special_tokens=True) |
|
|