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65 changes: 21 additions & 44 deletions python/llm/example/GPU/PyTorch-Models/Model/llava/README.md
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# LLaVA
In this directory, you will find examples on how you could use IPEX-LLM `optimize_model` API on LLaVA models on [Intel GPUs](../../../README.md). For illustration purposes, we utilize the [liuhaotian/llava-v1.5-7b](https://huggingface.co/liuhaotian/llava-v1.5-7b) as a reference LLaVA model.
In this directory, you will find examples on how you could use IPEX-LLM `optimize_model` API to accelerate LLaVA models on [Intel GPUs](../../../README.md). For illustration purposes, we utilize the [llava-hf/llava-1.5-7b-hf](https://huggingface.co/llava-hf/llava-1.5-7b-hf) as a reference LLaVA model.

## 0. Requirements
To run these examples with IPEX-LLM on Intel GPUs, we have some recommended requirements for your machine, please refer to [here](../../../README.md#requirements) for more information.

## Example: Multi-turn chat centered around an image using `generate()` API
In the example [generate.py](./generate.py), we show a basic use case for a LLaVA model to start a multi-turn chat centered around an image using `generate()` API, with IPEX-LLM INT4 optimizations on Intel GPUs.
## Example: Predict Tokens using `generate()` API
In the example [generate.py](./generate.py), we show a basic use case for a LLaVA model to predict the next N tokens using `generate()` API, with IPEX-LLM 'optimize_model' API on Intel GPUs.
### 1. Install
#### 1.1 Installation on Linux
We suggest using conda to manage environment:
Expand All @@ -15,12 +15,7 @@ conda activate llm
# below command will install intel_extension_for_pytorch==2.1.10+xpu as default
pip install --pre --upgrade ipex-llm[xpu] --extra-index-url https://pytorch-extension.intel.com/release-whl/stable/xpu/us/

pip install einops # install dependencies required by llava

git clone https://github.com/haotian-liu/LLaVA.git # clone the llava libary
cp generate.py ./LLaVA/ # copy our example to the LLaVA folder
cd LLaVA # change the working directory to the LLaVA folder
git checkout tags/v1.2.0 -b 1.2.0 # Get the branch which is compatible with transformers 4.36
pip install transformers==4.43.0
```

#### 1.2 Installation on Windows
Expand All @@ -32,12 +27,7 @@ conda activate llm
# below command will install intel_extension_for_pytorch==2.1.10+xpu as default
pip install --pre --upgrade ipex-llm[xpu] --extra-index-url https://pytorch-extension.intel.com/release-whl/stable/xpu/us/

pip install einops # install dependencies required by llava

git clone https://github.com/haotian-liu/LLaVA.git # clone the llava libary
copy generate.py .\LLaVA\ # copy our example to the LLaVA folder
cd LLaVA # change the working directory to the LLaVA folder
git checkout tags/v1.2.0 -b 1.2.0 # Get the branch which is compatible with transformers 4.36
pip install transformers==4.43.0
```

### 2. Configures OneAPI environment variables for Linux
Expand Down Expand Up @@ -116,42 +106,29 @@ set SYCL_CACHE_PERSISTENT=1
> For the first time that each model runs on Intel iGPU/Intel Arc™ A300-Series or Pro A60, it may take several minutes to compile.
### 4. Running examples

```bash
python ./generate.py --image-path-or-url 'https://llava-vl.github.io/static/images/monalisa.jpg'
```
python ./generate.py
```

In the example, several arguments can be passed to satisfy your requirements:

- `--repo-id-or-model-path REPO_ID_OR_MODEL_PATH`: argument defining the huggingface repo id for the LLaVA model (e.g. `liuhaotian/llava-v1.5-7b` to be downloaded, or the path to the huggingface checkpoint folder. It is default to be `'liuhaotian/llava-v1.5-7b'`.
- `--image-path-or-url IMAGE_PATH_OR_URL`: argument defining the input image that the chat will focus on. It is required.
- `--n-predict N_PREDICT`: argument defining the max number of tokens to predict. It is default to be `512`.

If you encounter some network error (which means your machine is unable to access huggingface.co) when running this example, refer to [Trouble Shooting](#4-trouble-shooting) section.

Arguments info:
- `--repo-id-or-model-path REPO_ID_OR_MODEL_PATH`: argument defining the huggingface repo id for the LLaVA model (e.g. `llava-hf/llava-1.5-7b-hf`) to be downloaded, or the path to the huggingface checkpoint folder. It is default to be `'llava-hf/llava-1.5-7b-hf'`.
- `--image-url-or-path IMAGE_URL_OR_PATH`: argument defining the image to be infered. It is default to be `'https://hf-mirror.com/datasets/huggingface/documentation-images/resolve/0052a70beed5bf71b92610a43a52df6d286cd5f3/diffusers/rabbit.jpg'`.
- `--prompt PROMPT`: argument defining the prompt to be infered (with integrated prompt format for chat). It is default to be `'Describe image in detail'`.
- `--n-predict N_PREDICT`: argument defining the max number of tokens to predict. It is default to be `32`.

#### Sample Output
#### [liuhaotian/llava-v1.5-7b](https://huggingface.co/liuhaotian/llava-v1.5-7b)
#### [llava-hf/llava-1.5-7b-hf](https://huggingface.co/llava-hf/llava-1.5-7b-hf)

```log
USER: Do you know who drew this painting?
ASSISTANT: Yes, the painting is a portrait of a woman by Leonardo da Vinci. It's a famous artwork known as the "Mona Lisa."
USER: Can you describe this painting?
ASSISTANT: The painting features a well-detailed portrait of a woman, painted in oil on a canvas. The woman appears to be a young woman staring straight ahead in a direct gaze towards the viewer. The woman's facial features are rendered sharply in the brush strokes, giving her a lifelike, yet enigmatic expression.
The background of the image mainly showcases the woman's face, with some hills visible in the lower part of the painting. The artist employs a wide range of shades, evoking a sense of depth and realism in the subject matter. The technique used in this portrait sets it apart from other artworks during the Renaissance period, making it a notable piece in art history.
Inference time: xxxx s
-------------------- Prompt --------------------
Describe image in detail
-------------------- Output --------------------
The image features a cute bunny rabbit dressed in a suit and tie, standing on a dirt road. The rabbit appears to be a
stuffed toy or a character from
```

The sample input image is:

<a href="https://llava-vl.github.io/static/images/monalisa.jpg"><img width=400px src="https://llava-vl.github.io/static/images/monalisa.jpg" ></a>

### 5 Trouble shooting

#### 5.1 SSLError
If you encounter the following output, it means your machine has some trouble accessing huggingface.co.
```log
requests.exceptions.SSLError: (MaxRetryError("HTTPSConnectionPool(host='huggingface.co', port=443): Max retries exceeded with url: /openai/clip-vit-large-patch14-336/resolve/main/config.json (Caused by SSLError(SSLZeroReturnError(6, 'TLS/SSL connection has been closed (EOF) (_ssl.c:1129)')))"),
```

You can resolve this problem with the following steps:
1. Download https://huggingface.co/openai/clip-vit-large-patch14-336 on some machine that can access huggingface.co, and put it in huggingface's local cache (default to be `~/.cache/huggingface/hub`) on the machine that you are going to run this example.
2. Set the environment variable (`export TRANSFORMERS_OFFLINE=1`) before you run the example.
<a href="https://hf-mirror.com/datasets/huggingface/documentation-images/resolve/0052a70beed5bf71b92610a43a52df6d286cd5f3/diffusers/rabbit.jpg"><img width=400px src="https://hf-mirror.com/datasets/huggingface/documentation-images/resolve/0052a70beed5bf71b92610a43a52df6d286cd5f3/diffusers/rabbit.jpg" ></a>
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