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A newer version of the Gradio SDK is available:
5.6.0
title: llama2-webui
app_file: app_4bit_ggml.py
sdk: gradio
sdk_version: 3.37.0
llama2-webui
Running Llama 2 with gradio web UI on GPU or CPU from anywhere (Linux/Windows/Mac).
- Supporting all Llama 2 models (7B, 13B, 70B, GPTQ, GGML) with 8-bit, 4-bit mode.
- Supporting GPU inference with at least 6 GB VRAM, and CPU inference.
Features
Supporting models: Llama-2-7b/13b/70b, all Llama-2-GPTQ, all Llama-2-GGML ...
Supporting model backends
Nvidia GPU: tranformers, bitsandbytes(8-bit inference), AutoGPTQ(4-bit inference)
- GPU inference with at least 6 GB VRAM
CPU, Mac/AMD GPU: llama.cpp
- CPU inference Demo on Macbook Air.
Web UI interface: gradio
Contents
Install
Method 1: From PyPI
pip install llama2-wrapper
Method 2: From Source:
git clone https://github.com/liltom-eth/llama2-webui.git
cd llama2-webui
pip install -r requirements.txt
Install Issues:
bitsandbytes >= 0.39 may not work on older NVIDIA GPUs. In that case, to use LOAD_IN_8BIT, you may have to downgrade like this:
pip install bitsandbytes==0.38.1
bitsandbytes also need a special install for Windows:
pip uninstall bitsandbytes
pip install https://github.com/jllllll/bitsandbytes-windows-webui/releases/download/wheels/bitsandbytes-0.41.0-py3-none-win_amd64.whl
Download Llama-2 Models
Llama 2 is a collection of pre-trained and fine-tuned generative text models ranging in scale from 7 billion to 70 billion parameters.
Llama-2-7b-Chat-GPTQ is the GPTQ model files for Meta's Llama 2 7b Chat. GPTQ 4-bit Llama-2 model require less GPU VRAM to run it.
Model List
| Model Name | set MODEL_PATH in .env | Download URL |
|---|---|---|
| meta-llama/Llama-2-7b-chat-hf | /path-to/Llama-2-7b-chat-hf | Link |
| meta-llama/Llama-2-13b-chat-hf | /path-to/Llama-2-13b-chat-hf | Link |
| meta-llama/Llama-2-70b-chat-hf | /path-to/Llama-2-70b-chat-hf | Link |
| meta-llama/Llama-2-7b-hf | /path-to/Llama-2-7b-hf | Link |
| meta-llama/Llama-2-13b-hf | /path-to/Llama-2-13b-hf | Link |
| meta-llama/Llama-2-70b-hf | /path-to/Llama-2-70b-hf | Link |
| TheBloke/Llama-2-7b-Chat-GPTQ | /path-to/Llama-2-7b-Chat-GPTQ | Link |
| TheBloke/Llama-2-7B-Chat-GGML | /path-to/llama-2-7b-chat.ggmlv3.q4_0.bin | Link |
| ... | ... | ... |
Running 4-bit model Llama-2-7b-Chat-GPTQ needs GPU with 6GB VRAM.
Running 4-bit model llama-2-7b-chat.ggmlv3.q4_0.bin needs CPU with 6GB RAM. There is also a list of other 2, 3, 4, 5, 6, 8-bit GGML models that can be used from TheBloke/Llama-2-7B-Chat-GGML.
Download Script
These models can be downloaded from the link using CMD like:
# Make sure you have git-lfs installed (https://git-lfs.com)
git lfs install
git clone [email protected]:meta-llama/Llama-2-7b-chat-hf
To download Llama 2 models, you need to request access from https://ai.meta.com/llama/ and also enable access on repos like meta-llama/Llama-2-7b-chat-hf. Requests will be processed in hours.
For GPTQ models like TheBloke/Llama-2-7b-Chat-GPTQ, you can directly download without requesting access.
For GGML models like TheBloke/Llama-2-7B-Chat-GGML, you can directly download without requesting access.
Usage
Config Examples
Setup your MODEL_PATH and model configs in .env file.
There are some examples in ./env_examples/ folder.
| Model Setup | Example .env |
|---|---|
| Llama-2-7b-chat-hf 8-bit on GPU | .env.7b_8bit_example |
| Llama-2-7b-Chat-GPTQ 4-bit on GPU | .env.7b_gptq_example |
| Llama-2-7B-Chat-GGML 4bit on CPU | .env.7b_ggmlv3_q4_0_example |
| Llama-2-13b-chat-hf on GPU | .env.13b_example |
| ... | ... |
Start Web UI
Run chatbot with web UI:
python app.py
Run on Nvidia GPU
The running requires around 14GB of GPU VRAM for Llama-2-7b and 28GB of GPU VRAM for Llama-2-13b.
If you are running on multiple GPUs, the model will be loaded automatically on GPUs and split the VRAM usage. That allows you to run Llama-2-7b (requires 14GB of GPU VRAM) on a setup like 2 GPUs (11GB VRAM each).
Run on Low Memory GPU with 8 bit
If you do not have enough memory, you can set up your LOAD_IN_8BIT as True in .env. This can reduce memory usage by around half with slightly degraded model quality. It is compatible with the CPU, GPU, and Metal backend.
Llama-2-7b with 8-bit compression can run on a single GPU with 8 GB of VRAM, like an Nvidia RTX 2080Ti, RTX 4080, T4, V100 (16GB).
Run on Low Memory GPU with 4 bit
If you want to run 4 bit Llama-2 model like Llama-2-7b-Chat-GPTQ, you can set up your LOAD_IN_4BIT as True in .env like example .env.7b_gptq_example.
Make sure you have downloaded the 4-bit model from Llama-2-7b-Chat-GPTQ and set the MODEL_PATH and arguments in .env file.
Llama-2-7b-Chat-GPTQ can run on a single GPU with 6 GB of VRAM.
Run on CPU
Run Llama-2 model on CPU requires llama.cpp dependency and llama.cpp Python Bindings, which are already installed.
Download GGML models like llama-2-7b-chat.ggmlv3.q4_0.bin following Download Llama-2 Models section. llama-2-7b-chat.ggmlv3.q4_0.bin model requires at least 6 GB RAM to run on CPU.
Set up configs like .env.7b_ggmlv3_q4_0_example from env_examples as .env.
Run web UI python app.py .
Mac GPU and AMD/Nvidia GPU Acceleration
If you would like to use Mac GPU and AMD/Nvidia GPU for acceleration, check these:
Benchmark
Run benchmark script to compute performance on your device:
python benchmark.py
benchmark.py will load the same .env as app.py.
Some benchmark performance:
| Model | Precision | Device | GPU VRAM | Speed (tokens / sec) | load time (s) |
|---|---|---|---|---|---|
| Llama-2-7b-chat-hf | 8bit | NVIDIA RTX 2080 Ti | 7.7 GB VRAM | 3.76 | 783.87 |
| Llama-2-7b-Chat-GPTQ | 4 bit | NVIDIA RTX 2080 Ti | 5.8 GB VRAM | 12.08 | 192.91 |
| Llama-2-7B-Chat-GGML | 4 bit | Intel i7-8700 | 5.1GB RAM | 4.16 | 105.75 |
Check / contribute the performance of your device in the full performance doc.
Contributing
Kindly read our Contributing Guide to learn and understand about our development process.
All Contributors
License
MIT - see MIT License
This project enables users to adapt it freely for proprietary purposes without any restrictions.