4-bit Quantized Llama 3 Model
Description
This repository hosts the 4-bit quantized version of the Llama 3 model. Optimized for reduced memory usage and faster inference, this model is suitable for deployment in environments where computational resources are limited.
Model Details
- Model Type: Transformer-based language model.
- Quantization: 4-bit precision.
- Advantages:
- Memory Efficiency: Reduces memory usage significantly, allowing deployment on devices with limited RAM.
- Inference Speed: Accelerates inference times, depending on the hardware's ability to process low-bit computations.
How to Use
To utilize this model efficiently, follow the steps below:
Loading the Quantized Model
Load the model with specific parameters to ensure it utilizes 4-bit precision:
from transformers import AutoModelForCausalLM
model_4bit = AutoModelForCausalLM.from_pretrained("SweatyCrayfish/llama-3-8b-quantized", device_map="auto", load_in_4bit=True)
Adjusting Precision of Components
Adjust the precision of other components, which are by default converted to torch.float16:
import torch
from transformers import AutoModelForCausalLM
model_4bit = AutoModelForCausalLM.from_pretrained("SweatyCrayfish/llama-3-8b-quantized", load_in_4bit=True, torch_dtype=torch.float32)
print(model_4bit.model.decoder.layers[-1].final_layer_norm.weight.dtype)
Citation
Original repository and citations: @article{llama3modelcard, title={Llama 3 Model Card}, author={AI@Meta}, year={2024}, url = {https://github.com/meta-llama/llama3/blob/main/MODEL_CARD.md} }
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