bitsandbytes-rocm/examples/int8_inference_huggingface.py

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import torch
from transformers import AutoModelForCausalLM, AutoTokenizer
MAX_NEW_TOKENS = 128
model_name = 'decapoda-research/llama-7b-hf'
text = 'Hamburg is in which country?\n'
tokenizer = AutoTokenizer.from_pretrained(model_name)
input_ids = tokenizer(text, return_tensors="pt").input_ids
free_in_GB = int(torch.cuda.mem_get_info()[0]/1024**3)
max_memory = f'{int(torch.cuda.mem_get_info()[0]/1024**3)-2}GB'
n_gpus = torch.cuda.device_count()
max_memory = {i: max_memory for i in range(n_gpus)}
model = AutoModelForCausalLM.from_pretrained(
model_name,
device_map='auto',
load_in_8bit=True,
max_memory=max_memory
)
generated_ids = model.generate(input_ids, max_length=MAX_NEW_TOKENS)
print(tokenizer.decode(generated_ids[0], skip_special_tokens=True))