ColossalChat

## Table of Contents - [Table of Contents](#table-of-contents) - [What is ColossalChat and Coati ?](#what-is-colossalchat-and-coati-) - [Online demo](#online-demo) - [Install](#install) - [Install the environment](#install-the-environment) - [Install the Transformers](#install-the-transformers) - [How to use?](#how-to-use) - [Supervised datasets collection](#supervised-datasets-collection) - [RLHF Training Stage1 - Supervised instructs tuning](#RLHF-training-stage1---supervised-instructs-tuning) - [RLHF Training Stage2 - Training reward model](#RLHF-training-stage2---training-reward-model) - [RLHF Training Stage3 - Training model with reinforcement learning by human feedback](#RLHF-training-stage3---training-model-with-reinforcement-learning-by-human-feedback) - [Inference Quantization and Serving - After Training](#inference-quantization-and-serving---after-training) - [Coati7B examples](#coati7b-examples) - [Generation](#generation) - [Open QA](#open-qa) - [Limitation for LLaMA-finetuned models](#limitation) - [Limitation of dataset](#limitation) - [FAQ](#faq) - [How to save/load checkpoint](#faq) - [How to train with limited resources](#faq) - [The Plan](#the-plan) - [Real-time progress](#real-time-progress) - [Invitation to open-source contribution](#invitation-to-open-source-contribution) - [Quick Preview](#quick-preview) - [Authors](#authors) - [Citations](#citations) - [Licenses](#licenses) --- ## What is ColossalChat and Coati ? [ColossalChat](https://github.com/hpcaitech/ColossalAI/tree/main/applications/Chat) is the project to implement LLM with RLHF, powered by the [Colossal-AI](https://github.com/hpcaitech/ColossalAI) project. Coati stands for `ColossalAI Talking Intelligence`. It is the name for the module implemented in this project and is also the name of the large language model developed by the ColossalChat project. The Coati package provides a unified large language model framework that has implemented the following functions - Supports comprehensive large-model training acceleration capabilities for ColossalAI, without requiring knowledge of complex distributed training algorithms - Supervised datasets collection - Supervised instructions fine-tuning - Training reward model - Reinforcement learning with human feedback - Quantization inference - Fast model deploying - Perfectly integrated with the Hugging Face ecosystem, a high degree of model customization

Image source: https://openai.com/blog/chatgpt

**As Colossal-AI is undergoing some major updates, this project will be actively maintained to stay in line with the Colossal-AI project.** More details can be found in the latest news. * [2023/03] [ColossalChat: An Open-Source Solution for Cloning ChatGPT With a Complete RLHF Pipeline](https://medium.com/@yangyou_berkeley/colossalchat-an-open-source-solution-for-cloning-chatgpt-with-a-complete-rlhf-pipeline-5edf08fb538b) * [2023/02] [Open Source Solution Replicates ChatGPT Training Process! Ready to go with only 1.6GB GPU Memory](https://www.hpc-ai.tech/blog/colossal-ai-chatgpt) ## Online demo

[ColossalChat](https://github.com/hpcaitech/ColossalAI/tree/main/applications/Chat): An open-source solution for cloning [ChatGPT](https://openai.com/blog/chatgpt/) with a complete RLHF pipeline. [[code]](https://github.com/hpcaitech/ColossalAI/tree/main/applications/Chat) [[blog]](https://medium.com/@yangyou_berkeley/colossalchat-an-open-source-solution-for-cloning-chatgpt-with-a-complete-rlhf-pipeline-5edf08fb538b) [[demo]](https://www.youtube.com/watch?v=HcTiHzApHm0) [[tutorial]](https://www.youtube.com/watch?v=-qFBZFmOJfg)

> DeepSpeedChat performance comes from its blog on 2023 April 12, ColossalChat performance can be reproduced on an AWS p4d.24xlarge node with 8 A100-40G GPUs with the following command: torchrun --standalone --nproc_per_node 8 benchmark_opt_lora_dummy.py --max_timesteps 1 --update_timesteps 1 --use_kernels --strategy colossalai_zero2 --experience_batch_size 64 --train_batch_size 32 ## Install ### Install the environment ```shell conda create -n coati conda activate coati git clone https://github.com/hpcaitech/ColossalAI.git cd ColossalAI/applications/Chat pip install . ``` ### Install the Transformers Given Hugging Face hasn't officially supported the LLaMA models, We fork a branch of Transformers that can be compatible with our code ```shell git clone https://github.com/hpcaitech/transformers cd transformers pip install . ``` ## How to use? ### Supervised datasets collection we collected 104K bilingual datasets of Chinese and English, and you can find the datasets in this repo [InstructionWild](https://github.com/XueFuzhao/InstructionWild) Here is how we collected the data

### RLHF Training Stage1 - Supervised instructs tuning Stage1 is supervised instructs fine-tuning, which uses the datasets mentioned earlier to fine-tune the model. You can run the `examples/train_sft.sh` to start a supervised instructs fine-tuning. [[Stage1 tutorial video]](https://www.youtube.com/watch?v=-qFBZFmOJfg) ### RLHF Training Stage2 - Training reward model Stage2 trains a reward model, which obtains corresponding scores by manually ranking different outputs for the same prompt and supervises the training of the reward model You can run the `examples/train_rm.sh` to start a reward model training. [[Stage2 tutorial video]](https://www.youtube.com/watch?v=gMx2CApKhuo) ### RLHF Training Stage3 - Training model with reinforcement learning by human feedback Stage3 uses reinforcement learning algorithm, which is the most complex part of the training process:

You can run the `examples/train_prompts.sh` to start training PPO with human feedback. [[Stage3 tutorial video]](https://www.youtube.com/watch?v=Z8wwSHxPL9g) For more details, see [`examples/`](https://github.com/hpcaitech/ColossalAI/tree/main/applications/Chat/examples). ### Inference Quantization and Serving - After Training We provide an online inference server and a benchmark. We aim to run inference on single GPU, so quantization is essential when using large models. We support 8-bit quantization (RTN), 4-bit quantization (GPTQ), and FP16 inference. You can Online inference server scripts can help you deploy your own services. For more details, see [`inference/`](https://github.com/hpcaitech/ColossalAI/tree/main/applications/Chat/inference). ## Coati7B examples ### Generation

E-mail

![phd](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/Phd.png)

coding

![sort](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/quick_sort.png)

regex

![regex](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/regex.png)

Tex

![tex](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/tex.png)

writing

![writing](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/writing.png)

Table

![Table](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/table.png)

### Open QA

Game

![Game](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/game.png)

Travel

![Travel](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/travel.png)

Physical

![Physical](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/physical.png)

Chemical

![Chemical](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/chemical.png)

Economy

![Economy](https://raw.githubusercontent.com/hpcaitech/public_assets/main/applications/chat/economy.png)

You can find more examples in this [repo](https://github.com/XueFuzhao/InstructionWild/blob/main/comparison.md). ### Limitation

Limitation for LLaMA-finetuned models

- Both Alpaca and ColossalChat are based on LLaMA. It is hard to compensate for the missing knowledge in the pre-training stage. - Lack of counting ability: Cannot count the number of items in a list. - Lack of Logics (reasoning and calculation) - Tend to repeat the last sentence (fail to produce the end token). - Poor multilingual results: LLaMA is mainly trained on English datasets (Generation performs better than QA).

Limitation of dataset

- Lack of summarization ability: No such instructions in finetune datasets. - Lack of multi-turn chat: No such instructions in finetune datasets - Lack of self-recognition: No such instructions in finetune datasets - Lack of Safety: - When the input contains fake facts, the model makes up false facts and explanations. - Cannot abide by OpenAI's policy: When generating prompts from OpenAI API, it always abides by its policy. So no violation case is in the datasets.

## FAQ

How to save/load checkpoint

We have integrated the Transformers save and load pipeline, allowing users to freely call Hugging Face's language models and save them in the HF format. ``` from coati.models.llama import LlamaLM from coati.trainer import SFTTrainer model = LlamaLM(pretrained=args.pretrain) tokenizer = AutoTokenizer.from_pretrained(args.pretrain) (model, optim) = strategy.prepare((model, optim)) trainer = SFTTrainer(model=model, strategy=strategy, optim=optim, train_dataloader=train_dataloader, eval_dataloader=eval_dataloader, batch_size=args.batch_size, max_epochs=args.max_epochs, accumulation_steps = args.accumulation_steps ) trainer.fit() # this saves in pytorch format strategy.save_model(model, args.save_path, only_rank0=True) # this saves in HF format. ColossalAI strategy with stage-3 doesn't support this method strategy.save_pretrained(model, args.save_path, only_rank0=True, tokenizer=tokenizer) ```

How to train with limited resources

Here are some examples that can allow you to train a 7B model on a single or multiple consumer-grade GPUs. If you only have a single 24G GPU, you can use the following script. `batch_size`, `lora_rank` and `grad_checkpoint` are the most important parameters to successfully train the model. ``` torchrun --standalone --nproc_per_node=1 train_sft.py \ --pretrain "/path/to/LLaMa-7B/" \ --model 'llama' \ --strategy naive \ --log_interval 10 \ --save_path /path/to/Coati-7B \ --dataset /path/to/data.json \ --batch_size 1 \ --accumulation_steps 8 \ --lr 2e-5 \ --max_datasets_size 512 \ --max_epochs 1 \ --lora_rank 16 \ --grad_checkpoint ``` `colossalai_gemini` strategy can enable a single 24G GPU to train the whole model without using LoRA if you have sufficient CPU memory. You can use the following script. ``` torchrun --standalone --nproc_per_node=1 train_sft.py \ --pretrain "/path/to/LLaMa-7B/" \ --model 'llama' \ --strategy colossalai_gemini \ --log_interval 10 \ --save_path /path/to/Coati-7B \ --dataset /path/to/data.json \ --batch_size 1 \ --accumulation_steps 8 \ --lr 2e-5 \ --max_datasets_size 512 \ --max_epochs 1 \ --grad_checkpoint ``` If you have 4x32 GB GPUs, you can even train the whole 7B model using our `colossalai_zero2_cpu` strategy! The script is given as follows. ``` torchrun --standalone --nproc_per_node=4 train_sft.py \ --pretrain "/path/to/LLaMa-7B/" \ --model 'llama' \ --strategy colossalai_zero2_cpu \ --log_interval 10 \ --save_path /path/to/Coati-7B \ --dataset /path/to/data.json \ --batch_size 1 \ --accumulation_steps 8 \ --lr 2e-5 \ --max_datasets_size 512 \ --max_epochs 1 \ --grad_checkpoint ```

## The Plan - [x] implement PPO fine-tuning - [x] implement training reward model - [x] support LoRA - [x] support inference - [x] support llama from [facebook](https://github.com/facebookresearch/llama) - [x] implement PPO-ptx fine-tuning - [ ] integrate with Ray - [ ] support more RL paradigms, like Implicit Language Q-Learning (ILQL), - [ ] support chain-of-thought by [langchain](https://github.com/hwchase17/langchain) ### Real-time progress You will find our progress in github project broad [Coati](https://github.com/orgs/hpcaitech/projects/17/views/1) ## Invitation to open-source contribution Referring to the successful attempts of [BLOOM](https://bigscience.huggingface.co/) and [Stable Diffusion](https://en.wikipedia.org/wiki/Stable_Diffusion), any and all developers and partners with computing powers, datasets, models are welcome to join and build the Colossal-AI community, making efforts towards the era of big AI models from the starting point of replicating ChatGPT! You may contact us or participate in the following ways: 1. [Leaving a Star ⭐](https://github.com/hpcaitech/ColossalAI/stargazers) to show your like and support. Thanks! 2. Posting an [issue](https://github.com/hpcaitech/ColossalAI/issues/new/choose), or submitting a PR on GitHub follow the guideline in [Contributing](https://github.com/hpcaitech/ColossalAI/blob/main/CONTRIBUTING.md). 3. Join the Colossal-AI community on [Slack](https://join.slack.com/t/colossalaiworkspace/shared_invite/zt-z7b26eeb-CBp7jouvu~r0~lcFzX832w), and [WeChat(微信)](https://raw.githubusercontent.com/hpcaitech/public_assets/main/colossalai/img/WeChat.png "qrcode") to share your ideas. 4. Send your official proposal to email contact@hpcaitech.com Thanks so much to all of our amazing contributors! ## Quick Preview

- An open-source low cost solution for cloning [ChatGPT](https://openai.com/blog/chatgpt/) with a complete RLHF pipeline. [[demo]](https://chat.colossalai.org)

- Up to 7.73 times faster for single server training and 1.42 times faster for single-GPU inference

- Up to 10.3x growth in model capacity on one GPU - A mini demo training process requires only 1.62GB of GPU memory (any consumer-grade GPU)

- Increase the capacity of the fine-tuning model by up to 3.7 times on a single GPU - Keep in a sufficiently high running speed | Model Pair | Alpaca-7B ⚔ Coati-7B | Coati-7B ⚔ Alpaca-7B | | :-----------: | :------------------: | :------------------: | | Better Cases | 38 ⚔ **41** | **45** ⚔ 33 | | Win Rate | 48% ⚔ **52%** | **58%** ⚔ 42% | | Average Score | 7.06 ⚔ **7.13** | **7.31** ⚔ 6.82 | - Our Coati-7B model performs better than Alpaca-7B when using GPT-4 to evaluate model performance. The Coati-7B model we evaluate is an old version we trained a few weeks ago and the new version is around the corner. ## Authors Coati is developed by ColossalAI Team: - [Fazzie](https://fazzie-key.cool/about/index.html) - [FrankLeeeee](https://github.com/FrankLeeeee) - [BlueRum](https://github.com/ht-zhou) - [ver217](https://github.com/ver217) - [ofey404](https://github.com/ofey404) The Phd student from [(HPC-AI) Lab](https://ai.comp.nus.edu.sg/) also contributed a lot to this project. - [Zangwei Zheng](https://github.com/zhengzangw) - [Xue Fuzhao](https://github.com/XueFuzhao) ## Citations ```bibtex @article{Hu2021LoRALA, title = {LoRA: Low-Rank Adaptation of Large Language Models}, author = {Edward J. Hu and Yelong Shen and Phillip Wallis and Zeyuan Allen-Zhu and Yuanzhi Li and Shean Wang and Weizhu Chen}, journal = {ArXiv}, year = {2021}, volume = {abs/2106.09685} } @article{ouyang2022training, title={Training language models to follow instructions with human feedback}, author={Ouyang, Long and Wu, Jeff and Jiang, Xu and Almeida, Diogo and Wainwright, Carroll L and Mishkin, Pamela and Zhang, Chong and Agarwal, Sandhini and Slama, Katarina and Ray, Alex and others}, journal={arXiv preprint arXiv:2203.02155}, year={2022} } @article{touvron2023llama, title={LLaMA: Open and Efficient Foundation Language Models}, author={Touvron, Hugo and Lavril, Thibaut and Izacard, Gautier and Martinet, Xavier and Lachaux, Marie-Anne and Lacroix, Timoth{\'e}e and Rozi{\`e}re, Baptiste and Goyal, Naman and Hambro, Eric and Azhar, Faisal and Rodriguez, Aurelien and Joulin, Armand and Grave, Edouard and Lample, Guillaume}, journal={arXiv preprint arXiv:2302.13971}, year={2023} } @misc{alpaca, author = {Rohan Taori and Ishaan Gulrajani and Tianyi Zhang and Yann Dubois and Xuechen Li and Carlos Guestrin and Percy Liang and Tatsunori B. Hashimoto }, title = {Stanford Alpaca: An Instruction-following LLaMA model}, year = {2023}, publisher = {GitHub}, journal = {GitHub repository}, howpublished = {\url{https://github.com/tatsu-lab/stanford_alpaca}}, } @misc{instructionwild, author = {Fuzhao Xue and Zangwei Zheng and Yang You }, title = {Instruction in the Wild: A User-based Instruction Dataset}, year = {2023}, publisher = {GitHub}, journal = {GitHub repository}, howpublished = {\url{https://github.com/XueFuzhao/InstructionWild}}, } ``` ## Licenses Coati is licensed under the [Apache 2.0 License](LICENSE).