ipex-llm/python/llm/example/GPU/Pipeline-Parallel-Inference

Run IPEX-LLM on Multiple Intel GPUs in Pipeline Parallel Fashion

This example demonstrates how to run IPEX-LLM optimized low-bit model vertically partitioned on multiple Intel GPUs for Linux users.

Requirements

To run this example with IPEX-LLM on Intel GPUs, we have some recommended requirements for your machine, please refer to here for more information. For this particular example, you will need at least two GPUs on your machine.

Verified Models

• Llama-2-7b-chat-hf
• Llama-2-13b-chat-hf
• Meta-Llama-3-8B-Instruct

Example: Run pipeline parallel inference on multiple GPUs

0. Prerequisites

Please visit the Install IPEX-LLM on Linux with Intel GPU, follow Install Intel GPU Driver and Install oneAPI to install GPU driver and Intel® oneAPI Base Toolkit 2024.0.

1. Installation

conda create -n llm python=3.11
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 oneccl_bind_pt==2.1.100 --extra-index-url https://pytorch-extension.intel.com/release-whl/stable/xpu/us/

2. Run pipeline parallel inference on multiple GPUs

For optimal performance, it is recommended to set several environment variables. We provide example usage as following:

• Run Llama-2-13b-chat-hf on two Intel Arc A770

bash run_llama2_13b_arc_2_card.sh

Note

: You could change NUM_GPUS to the number of GPUs you have on your machine.

Sample Output

meta-llama/Llama-2-13b-chat-hf

Inference time: xxxx s
First token cost xxxx s and rest tokens cost average xxxx s
-------------------- Prompt --------------------
Once upon a time, there existed a little girl who liked to have adventures. She wanted to go to places and meet new people, and have fun
-------------------- Output --------------------
Once upon a time, there existed a little girl who liked to have adventures. She wanted to go to places and meet new people, and have fun. She was always asking her parents to take her on trips, but they were always too busy or too tired.

One day, the little girl