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LLMC is an off-the-shell tool designed for compressing LLM, leveraging state-of-the-art compression algorithms to enhance efficiency and reduce model size without compromising performance.

English doc is here.

Chinese doc is here.

docker hub is here.

Community:

• Discord Server
• Tencent QQ Group

• Sep 26, 2024: 🔥 We now support exporting 💥FP8 quantized(E4M3, E5M2) models from 🚀LLMC to advanced inference backends such as VLLM and SGLang. For detailed usage, please refer to the VLLM documentation and SGLang documentation.

• Sep 24, 2024: 🔥 We have officially released ✅INT4 and ✅INT8 models of ✨Llama-3.1-405B, quantized using 🚀LLMC in save_lightllm mode. You can download the model parameters here.

• Sep 23, 2024: 🔥 We now support exporting ✨real quantized(INT4, INT8) models from 🚀LLMC to advanced inference backends such as VLLM, SGLang, AutoAWQ, and MLC-LLM for quantized inference deployment, enabling ✨reduced memory usage and ✨faster inference speeds. For detailed usage, please refer to the VLLM documentation, SGLang documentation, AutoAWQ documentation, and MLC-LLM documentation.

• Sep 9, 2024: 🔥 We provide some configs of our best practice towards superior performance (see Best Practice here).

• Sep 3, 2024: 🔥 We support opencompass 🤗 to eval 🚀LLMC model. Follow this doc and have a try!

• Aug 22, 2024: 🔥We support lots of small language models, including current SOTA SmolLM(see Supported Model List).

• Aug 22, 2024: 🔥 Additionally, we also support down stream task evaluation through our modified lm-evaluation-harness 🤗. Specifically, people can first employ save_trans mode(see save part in Configuration) to save a weight modified model. After obtaining the transformed model, they can directly evaluate the quantized model referring to run_lm_eval.sh. More details can be found in here.

• Jul 23, 2024: 🍺🍺🍺 We release a brand new version benchmark paper:

  LLMC: Benchmarking Large Language Model Quantization with a Versatile Compression Toolkit.

  Ruihao Gong*, Yang Yong*, Shiqiao Gu*, Yushi Huang*, Chengtao Lv, Yunchen Zhang, Xianglong Liu📧, Dacheng Tao

  (* denotes equal contribution, 📧 denotes corresponding author.)

• 💥Comprehensive Algorithm Support: Provides a broad range of ✨SOTA compression algorithms, including ✅quantization, ✅mixed-precision quantization, and ✅sparsity, while maintaining accuracy consistent with the original repositories. ✨Quantization best practices (see 🚀Best Practices here) are also available to ensure optimal performance and efficiency.

• 💥Supported Formats: Supports both ✨quantization (integer and floating-point) and ✨sparsity, specifically including ✅weight-activation, ✅weight-only, ✅mixed-precision quantization, as well as ✅structured and ✅unstructured sparsity.

• 💥Wide Model Support: Offers support for a diverse array of ✨LLM models, including ✅LLama, ✅Mistral, ✅InternLM2, ✅Qwen2, among others, as well as ✅MOE and ✅VLM models (see Supported Model List).

• 💥Multi-backend Compatibility: Seamlessly integrates with various backends for enhanced deployment flexibility. Multiple quantization settings and model formats are compatible with a wide range of backends and hardware platforms, such as ✅VLLM, ✅Sglang, ✅LightLLM, ✅MLC-LLM, and ✅AutoAWQ, making it highly versatile(see Section Backend here).

• 💥Performance Efficiency: Enables quantization of large LLMs, such as ✨Llama3.1-405B and ✨OPT-175B, with PPL evaluation on a single A100/H100/H800 GPU.

Please refer to the 🚀Quick Start section in the documentation.

✅ BLOOM

✅ LLaMA

✅ LLaMA V2

✅ StarCoder

✅ OPT

✅ Falcon

✅ InternLM2

✅ Mistral

✅ LLaMA V3

✅ Mixtral

✅ Qwen V2

✅ LLaVA

✅ InternLM2.5

✅ StableLM

✅ Gemma2

✅ Phi2

✅ Phi 1.5

✅ MiniCPM

✅ SmolLM

You can add your own model type referring to files under llmc/models/*.py.

✅ VLLM

✅ LightLLM

✅ Sglang

✅ MLC-LLM

✅ AutoAWQ

✅ Naive

✅ AWQ

✅ GPTQ

✅ SmoothQuant

✅ OS+

✅ OmniQuant

✅ NormTweaking

✅ AdaDim

✅ QUIK

✅ SpQR

✅ DGQ

✅ OWQ

✅ LLM.int8()

✅ HQQ

✅ QuaRot

✅ Naive(Magnitude)

✅ Wanda

✅ ShortGPT

We develop our code referring to the following repos:

• https://github.com/mit-han-lab/llm-awq
• https://github.com/mit-han-lab/smoothquant
• https://github.com/OpenGVLab/OmniQuant
• https://github.com/IST-DASLab/gptq
• https://github.com/ModelTC/Outlier_Suppression_Plus
• https://github.com/IST-DASLab/QUIK
• https://github.com/Vahe1994/SpQR
• https://github.com/ilur98/DGQ
• https://github.com/xvyaward/owq
• https://github.com/TimDettmers/bitsandbytes
• https://github.com/mobiusml/hqq
• https://github.com/spcl/QuaRot
• https://github.com/locuslab/wanda
• https://github.com/EleutherAI/lm-evaluation-harness

If you find our LLM-QBench paper/llmc toolkit useful or relevant to your research, please kindly cite our paper:

@misc{llmc,
   author = {llmc contributors},
   title = {llmc: Towards Accurate and Efficient LLM Compression},
   year = {2024},
   publisher = {GitHub},
   journal = {GitHub repository},
   howpublished = {\url{https://github.com/ModelTC/llmc}},
}

@misc{gong2024llmqbench,
      title={LLM-QBench: A Benchmark Towards the Best Practice for Post-training Quantization of Large Language Models},
      author={Ruihao Gong and Yang Yong and Shiqiao Gu and Yushi Huang and Yunchen Zhang and Xianglong Liu and Dacheng Tao},
      year={2024},
      eprint={2405.06001},
      archivePrefix={arXiv},
      primaryClass={cs.LG}
}

@misc{gong2024llmcbenchmarkinglargelanguage,
      title={LLMC: Benchmarking Large Language Model Quantization with a Versatile Compression Toolkit},
      author={Ruihao Gong and Yang Yong and Shiqiao Gu and Yushi Huang and Chentao Lv and Yunchen Zhang and Xianglong Liu and Dacheng Tao},
      year={2024},
      eprint={2405.06001},
      archivePrefix={arXiv},
      primaryClass={cs.LG},
      url={https://arxiv.org/abs/2405.06001},
}