google/gemma-2-27b-it · Update bitsandbytes examples

Aug 1

•

This updates the bitsandbytes examples to load the model using torch_dtype=torch.bfloat16, similar to the other examples on the model card.

Fixes: #29, #32

Update bitsandbytes examples6d13c8f6

illeatmyhat

Aug 5

Works on my machine. Tested with

from transformers import AutoTokenizer, AutoModelForCausalLM, BitsAndBytesConfig
import torch
quantization_config = BitsAndBytesConfig(load_in_4bit=True, bnb_4bit_compute_dtype=torch.bfloat16)

tokenizer = AutoTokenizer.from_pretrained("google/gemma-2-27b-it")
model = AutoModelForCausalLM.from_pretrained(
    "google/gemma-2-27b-it",
    quantization_config=quantization_config,
    torch_dtype=torch.bfloat16)

input_text = tokenizer.apply_chat_template([{"role":"user","content":"Write me a poem about Machine Learning."}], tokenize=False, add_generation_prompt=True)

inputs = tokenizer.encode(input_text, add_special_tokens=False, return_tensors="pt")
outputs = model.generate(input_ids=inputs.to(model.device), max_new_tokens=20)
print(tokenizer.decode(outputs[0]))