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[Ascend] Update README (#6331)

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* update readme

* [fix] add vllm & vllm-ascend installation

---------

Co-authored-by: Tong Li <tong.li35271158@gmail.com>
Co-authored-by: duanjunwen <935724073@qq.com>
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Tong Li 2025-05-28 11:35:35 +08:00 committed by xysheng-colossal
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31
applications/ColossalChat/coati/distributed/README.md
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@ -2,6 +2,8 @@
This repository implements a distributed Reinforcement Learning (RL) training framework designed to fine-tune large language models using algorithms such as **GRPO** and **DAPO**. It supports multi-node and multi-GPU setups, scalable rollout generation, and policy optimization using libraries like VLLM.
**Please note that we are still under intensive development, stay tuned.**
---
## 🚀 Features
@ -28,6 +30,15 @@ pip install -e .
cd ./applications/ColossalChat
pip install -e .
```
Install vllm and vllm-ascend
```bash
apt update -y
apt install -y libnuma-dev
pip install vllm==0.7.3
pip install vllm-ascend==0.7.3 --extra-index https://download.pytorch.org/whl/cpu/
```
Install Fuyao Ray.
Please update CANN before install fuyao ray
```bash
@ -128,6 +139,23 @@ export HCCL_SOCKET_IFNAME=eno0
export RAY_COLLECTIVE_MEET_TIMEOUT_SECONDS=7200
```
## Architecture Design
<div align="center">
<p align="center">
<img src="https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/producer-consumer-pattern.png" width=700/>
</p>
</div>
Producer-Consumer Pattern: a classic software design pattern used for managing resources, data, or tasks between two different processes or threads.
* Producer: inference engine which rollouts out examples and saves them into a shared buffer.
* Consumer: training framework which takes training examples from the shared buffer and train the policy model.
Key features for Producer-Consumer Pattern:
* Buffer: Acts as a shared queue where the producer adds data and the consumer removes data.
* Concurrency: Rollout and training can work concurrently.
## 🧠 Data Format
Each data sample in the training or evaluation `.jsonl` file should follow this format:
@ -329,5 +357,4 @@ python rl_example.py
```
## Acknowledgement
---
Colossal-RL is a distributed version of ColossalChat and inspired by a few awesome open-source projects. We would like to express our gratitude to the Fuyao-ray team and the vllm-ascend team for their support throughout the development of the this project. We also thank the following awesome open-source projects and algorithms: GRPO, DAPO, TRL, Verl, OpenRLHF, StreamRL, Qwen, Logic-RL.