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Model Card
Model Page: [Gemma-7b-aplaca] use aplaca datasets finetuned on gemma-7b
Authors: Xiaohan
Model Information
Usage
Below we share some code snippets on how to get quickly started with running the model. First make sure to pip install -U transformers, then copy the snippet from the section that is relevant for your usecase.
Running the model on a CPU
from transformers import AutoTokenizer, AutoModelForCausalLM
tokenizer = AutoTokenizer.from_pretrained("xiaohan1/gemma-7b-alpaca")
model = AutoModelForCausalLM.from_pretrained("xiaohan1/gemma-7b-alpaca")
input_text = "Write me a poem about Machine Learning."
input_ids = tokenizer(input_text, return_tensors="pt")
outputs = model.generate(**input_ids)
print(tokenizer.decode(outputs[0]))
Running the model on a single / multi GPU
# pip install accelerate
from transformers import AutoTokenizer, AutoModelForCausalLM
tokenizer = AutoTokenizer.from_pretrained("xiaohan1/gemma-7b-alpaca")
model = AutoModelForCausalLM.from_pretrained("xiaohan1/gemma-7b-alpaca", device_map="auto")
input_text = "Write me a poem about Machine Learning."
input_ids = tokenizer(input_text, return_tensors="pt").to("cuda")
outputs = model.generate(**input_ids)
print(tokenizer.decode(outputs[0]))
Running the model on a GPU using different precisions
- Using
torch.float16
# pip install accelerate
from transformers import AutoTokenizer, AutoModelForCausalLM
import torch
tokenizer = AutoTokenizer.from_pretrained("xiaohan1/gemma-7b-alpaca")
model = AutoModelForCausalLM.from_pretrained("xiaohan1/gemma-7b-alpaca", device_map="auto", torch_dtype=torch.float16)
input_text = "Write me a poem about Machine Learning."
input_ids = tokenizer(input_text, return_tensors="pt").to("cuda")
outputs = model.generate(**input_ids)
print(tokenizer.decode(outputs[0]))
- Using
torch.bfloat16
# pip install accelerate
from transformers import AutoTokenizer, AutoModelForCausalLM
import torch
tokenizer = AutoTokenizer.from_pretrained("xiaohan1/gemma-7b-alpaca")
model = AutoModelForCausalLM.from_pretrained("xiaohan1/gemma-7b-alpaca", device_map="auto", torch_dtype=torch.bfloat16)
input_text = "Write me a poem about Machine Learning."
input_ids = tokenizer(input_text, return_tensors="pt").to("cuda")
outputs = model.generate(**input_ids)
print(tokenizer.decode(outputs[0]))
Quantized Versions through bitsandbytes
- Using 8-bit precision (int8)
# pip install bitsandbytes accelerate
from transformers import AutoTokenizer, AutoModelForCausalLM, BitsAndBytesConfig
quantization_config = BitsAndBytesConfig(load_in_8bit=True)
tokenizer = AutoTokenizer.from_pretrained("xiaohan1/gemma-7b-alpaca")
model = AutoModelForCausalLM.from_pretrained("xiaohan1/gemma-7b-alpaca", quantization_config=quantization_config)
input_text = "Write me a poem about Machine Learning."
input_ids = tokenizer(input_text, return_tensors="pt").to("cuda")
outputs = model.generate(**input_ids)
print(tokenizer.decode(outputs[0]))
- Using 4-bit precision
# pip install bitsandbytes accelerate
from transformers import AutoTokenizer, AutoModelForCausalLM, BitsAndBytesConfig
quantization_config = BitsAndBytesConfig(load_in_4bit=True)
tokenizer = AutoTokenizer.from_pretrained("xiaohan1/gemma-7b-alpaca")
model = AutoModelForCausalLM.from_pretrained("xiaohan1/gemma-7b-alpaca", quantization_config=quantization_config)
input_text = "Write me a poem about Machine Learning."
input_ids = tokenizer(input_text, return_tensors="pt").to("cuda")
outputs = model.generate(**input_ids)
print(tokenizer.decode(outputs[0]))
Other optimizations
- Flash Attention 2
First make sure to install flash-attn in your environment pip install flash-attn
model = AutoModelForCausalLM.from_pretrained(
model_id,
torch_dtype=torch.float16,
+ attn_implementation="flash_attention_2"
).to(0)
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