FEAT : Adding VPTQ quantization method to HFQuantizer (#34770)

* init vptq

* add integration

* add vptq support

fix readme

* add tests && format

* format

* address comments

* format

* format

* address comments

* format

* address comments

* remove debug code

* Revert "remove debug code"

This reverts commit ed3b3eaaba82caf58cb3aa6e865d98e49650cf66.

* fix test

---------

Co-authored-by: Yang Wang <wyatuestc@gmail.com>
This commit is contained in:
wejoncy
2024-12-20 16:45:53 +08:00
committed by GitHub
parent 5a2aedca1e
commit 4e27a4009d
21 changed files with 647 additions and 3 deletions

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@@ -167,6 +167,8 @@
title: AWQ
- local: quantization/aqlm
title: AQLM
- local: quantization/vptq
title: VPTQ
- local: quantization/quanto
title: Quanto
- local: quantization/eetq

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@@ -473,7 +473,7 @@ with torch.backends.cuda.sdp_kernel(enable_flash=True, enable_math=False, enable
Quantization reduces the size of the LLM weights by storing them in a lower precision. This translates to lower memory usage and makes loading LLMs for inference more accessible if you're constrained by your GPUs memory. If you aren't limited by your GPU, you don't necessarily need to quantize your model because it can incur a small latency cost (except for AWQ and fused AWQ modules) due to the extra step required to quantize and dequantize the weights.
> [!TIP]
> There are many quantization libraries (see the [Quantization](./quantization) guide for more details) available, such as Quanto, AQLM, AWQ, and AutoGPTQ. Feel free to try them out and see which one works best for your use case. We also recommend reading the [Overview of natively supported quantization schemes in 🤗 Transformers](https://hf.co/blog/overview-quantization-transformers) blog post which compares AutoGPTQ and bitsandbytes.
> There are many quantization libraries (see the [Quantization](./quantization) guide for more details) available, such as Quanto, AQLM, VPTQ, AWQ, and AutoGPTQ. Feel free to try them out and see which one works best for your use case. We also recommend reading the [Overview of natively supported quantization schemes in 🤗 Transformers](https://hf.co/blog/overview-quantization-transformers) blog post which compares AutoGPTQ and bitsandbytes.
Use the Model Memory Calculator below to estimate and compare how much memory is required to load a model. For example, try estimating how much memory it costs to load [Mistral-7B-v0.1](https://huggingface.co/mistralai/Mistral-7B-v0.1).

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@@ -34,6 +34,10 @@ Learn how to quantize models in the [Quantization](../quantization) guide.
[[autodoc]] AqlmConfig
## VptqConfig
[[autodoc]] VptqConfig
## AwqConfig
[[autodoc]] AwqConfig

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@@ -58,6 +58,7 @@ Use the table below to help you decide which quantization method to use.
| [optimum-quanto](./quanto) | 🟢 | 🟢 | 🟢 | 🔴 | 🟢 | 🔴 | 🟢 | 2 / 4 / 8 | 🔴 | 🔴 | 🟢 | https://github.com/huggingface/optimum-quanto |
| [FBGEMM_FP8](./fbgemm_fp8.md) | 🟢 | 🔴 | 🟢 | 🔴 | 🔴 | 🔴 | 🔴 | 8 | 🔴 | 🟢 | 🟢 | https://github.com/pytorch/FBGEMM |
| [torchao](./torchao.md) | 🟢 | | 🟢 | 🔴 | partial support (int4 weight only) | 🔴 | | 4 / 8 | | 🟢🔴 | 🟢 | https://github.com/pytorch/ao |
| [VPTQ](./vptq) | 🔴 | 🔴 | 🟢 | 🟡 | 🔴 | 🔴 | 🟢 | 1 - 8 | 🔴 | 🟢 | 🟢 | https://github.com/microsoft/VPTQ |
<Tip>
@@ -71,4 +72,4 @@ We value your feedback to help identify bugs before the full release! Check out
\** bitsandbytes is seeking contributors to help develop and lead the Apple Silicon backend. Interested? Contact them directly via their repo. Stipends may be available through sponsorships.
</Tip>
</Tip>

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@@ -0,0 +1,111 @@
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# VPTQ
> [!TIP]
> Try VPTQ on [Hugging Face](https://huggingface.co/spaces/microsoft/VPTQ)!
> Try VPTQ on [Google Colab](https://colab.research.google.com/github/microsoft/VPTQ/blob/main/notebooks/vptq_example.ipynb)!
> Know more about VPTQ on [ArXiv](https://arxiv.org/pdf/2409.17066)!
Vector Post-Training Quantization ([VPTQ](https://github.com/microsoft/VPTQ)) is a novel Post-Training Quantization method that leverages Vector Quantization to high accuracy on LLMs at an extremely low bit-width (<2-bit). VPTQ can compress 70B, even the 405B model, to 1-2 bits without retraining and maintain high accuracy.
- Better Accuracy on 1-2 bits, (405B @ <2bit, 70B @ 2bit)
- Lightweight Quantization Algorithm: only cost ~17 hours to quantize 405B Llama-3.1
- Agile Quantization Inference: low decode overhead, best throughput, and TTFT
Inference support for VPTQ is released in the `vptq` library. Make sure to install it to run the models:
```bash
pip install vptq
```
The library provides efficient kernels for NVIDIA/AMD GPU inference.
To run VPTQ models simply load a model that has been quantized with VPTQ:
## Inference example
**Run Llama 3.1 70b on RTX4090 (24G @ ~2bits) in real time**
![Llama3 1-70b-prompt](https://github.com/user-attachments/assets/d8729aca-4e1d-4fe1-ac71-c14da4bdd97f)
```python
from transformers import AutoTokenizer, AutoModelForCausalLM
quantized_model = AutoModelForCausalLM.from_pretrained(
"VPTQ-community/Meta-Llama-3.1-70B-Instruct-v16-k65536-65536-woft",
torch_dtype="auto",
device_map="auto"
)
tokenizer = AutoTokenizer.from_pretrained("VPTQ-community/Meta-Llama-3.1-70B-Instruct-v16-k65536-65536-woft")
input_ids = tokenizer("hello, it's me", return_tensors="pt").to("cuda")
out = model.generate(**input_ids, max_new_tokens=32, do_sample=False)
```
## Quantize your own model
VPTQ algorithm early-released at [VPTQ ](https://github.com/microsoft/VPTQ/tree/algorithm),
and checkout the [tutorial](https://github.com/microsoft/VPTQ/blob/algorithm/algorithm.md).
## Early Results from Tech Report
VPTQ achieves better accuracy and higher throughput with lower quantization overhead across models of different sizes. The following experimental results are for reference only; VPTQ can achieve better outcomes under reasonable parameters, especially in terms of model accuracy and inference speed.
| Model | bitwidth | W2↓ | C4↓ | AvgQA↑ | tok/s↑ | mem(GB) | cost/h↓ |
| ----------- | -------- | ---- | ---- | ------ | ------ | ------- | ------- |
| LLaMA-2 7B | 2.02 | 6.13 | 8.07 | 58.2 | 39.9 | 2.28 | 2 |
| | 2.26 | 5.95 | 7.87 | 59.4 | 35.7 | 2.48 | 3.1 |
| LLaMA-2 13B | 2.02 | 5.32 | 7.15 | 62.4 | 26.9 | 4.03 | 3.2 |
| | 2.18 | 5.28 | 7.04 | 63.1 | 18.5 | 4.31 | 3.6 |
| LLaMA-2 70B | 2.07 | 3.93 | 5.72 | 68.6 | 9.7 | 19.54 | 19 |
| | 2.11 | 3.92 | 5.71 | 68.7 | 9.7 | 20.01 | 19 |
## More Models in [VPTQ-community](https://huggingface.co/VPTQ-community)
⚠️ The repository only provides a method of model quantization algorithm.
⚠️ The open-source community VPTQ-community provides models based on the technical report and quantization algorithm.
**Quick Estimation of Model Bitwidth (Excluding Codebook Overhead)**:
- **Model Naming Convention**: The model's name includes the **vector length** $v$, **codebook (lookup table) size**, and **residual codebook size**. For example, "Meta-Llama-3.1-70B-Instruct-v8-k65536-256-woft" is "Meta-Llama-3.1-70B-Instruct", where:
- **Vector Length**: 8
- **Number of Centroids**: 65536 (2^16)
- **Number of Residual Centroids**: 256 (2^8)
- **Equivalent Bitwidth Calculation**:
- **Index**: log2(65536) = 16 / 8 = 2 bits
- **Residual Index**: log2(256) = 8 / 8 = 1 bit
- **Total Bitwidth**: 2 + 1 = 3 bits
- **Model Size Estimation**: 70B * 3 bits / 8 bits per Byte = 26.25 GB
- **Note**: This estimate does not include the size of the codebook (lookup table), other parameter overheads, and the padding overhead for storing indices. For the detailed calculation method, please refer to **Tech Report Appendix C.2**.
| Model Series | Collections | (Estimated) Bit per weight |
| :--------------------------------: | :-----------------------------------------------------------------------------------------------------------------------------: | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Llama 3.1 Nemotron 70B Instruct HF | [HF 🤗](https://huggingface.co/collections/VPTQ-community/vptq-llama-31-nemotron-70b-instruct-hf-without-finetune-671730b96f16208d0b3fe942) | [4 bits](https://huggingface.co/VPTQ-community/Llama-3.1-Nemotron-70B-Instruct-HF-v8-k65536-65536-woft) [3 bits](https://huggingface.co/VPTQ-community/Llama-3.1-Nemotron-70B-Instruct-HF-v8-k65536-256-woft) [2 bits (1)](https://huggingface.co/VPTQ-community/Llama-3.1-Nemotron-70B-Instruct-HF-v16-k65536-65536-woft) [2 bits (2)](https://huggingface.co/VPTQ-community/Llama-3.1-Nemotron-70B-Instruct-HF-v8-k65536-0-woft) [1.875 bits](https://huggingface.co/VPTQ-community/Llama-3.1-Nemotron-70B-Instruct-HF-v16-k65536-16384-woft) [1.625 bits](https://huggingface.co/VPTQ-community/Llama-3.1-Nemotron-70B-Instruct-HF-v16-k65536-1024-woft) [1.5 bits](https://huggingface.co/VPTQ-community/Llama-3.1-Nemotron-70B-Instruct-HF-v16-k65536-256-woft) |
| Llama 3.1 8B Instruct | [HF 🤗](https://huggingface.co/collections/VPTQ-community/vptq-llama-31-8b-instruct-without-finetune-66f2b70b1d002ceedef02d2e) | [4 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-8B-Instruct-v8-k65536-65536-woft) [3.5 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-8B-Instruct-v8-k65536-4096-woft) [3 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-8B-Instruct-v8-k65536-256-woft) [2.3 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-8B-Instruct-v12-k65536-4096-woft) |
| Llama 3.1 70B Instruct | [HF 🤗](https://huggingface.co/collections/VPTQ-community/vptq-llama-31-70b-instruct-without-finetune-66f2bf454d3dd78dfee2ff11) | [4 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-70B-Instruct-v8-k65536-65536-woft) [3 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-70B-Instruct-v8-k65536-256-woft) [2.25 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-70B-Instruct-v8-k65536-4-woft) [2 bits (1)](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-70B-Instruct-v16-k65536-65536-woft) [2 bits (2)](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-70B-Instruct-v8-k65536-0-woft) [1.93 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-70B-Instruct-v16-k65536-32768-woft) [1.875 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-70B-Instruct-v8-k32768-0-woft) [1.75 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-70B-Instruct-v8-k16384-0-woft) |
| Llama 3.1 405B Instruct | [HF 🤗](https://huggingface.co/collections/VPTQ-community/vptq-llama-31-405b-instruct-without-finetune-66f4413f9ba55e1a9e52cfb0) | [4 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-405B-Instruct-v8-k65536-65536-woft) [3 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-405B-Instruct-v8-k65536-256-woft) [2 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-405B-Instruct-v16-k65536-65536-woft) [1.875 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-405B-Instruct-v16-k32768-32768-woft) [1.625 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-405B-Instruct-v16-k65536-1024-woft) [1.5 bits (1)](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-405B-Instruct-v8-k4096-0-woft) [1.5 bits (2)](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-405B-Instruct-v16-k65536-256-woft) [1.43 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-405B-Instruct-v16-k65536-128-woft) [1.375 bits](https://huggingface.co/VPTQ-community/Meta-Llama-3.1-405B-Instruct-v16-k65536-64-woft) |
| Mistral Large Instruct 2407 (123B) | [HF 🤗](https://huggingface.co/collections/VPTQ-community/vptq-mistral-large-instruct-2407-without-finetune-6711ebfb7faf85eed9cceb16) | [4 bits](https://huggingface.co/VPTQ-community/Mistral-Large-Instruct-2407-v8-k65536-65536-woft) [3 bits](https://huggingface.co/VPTQ-community/Mistral-Large-Instruct-2407-v8-k65536-256-woft) [2 bits (1)](https://huggingface.co/VPTQ-community/Mistral-Large-Instruct-2407-v16-k65536-65536-woft) [2 bits (2)](https://huggingface.co/VPTQ-community/Mistral-Large-Instruct-2407-v8-k65536-0-woft) [1.875 bits](https://huggingface.co/VPTQ-community/Mistral-Large-Instruct-2407-v16-k65536-16384-woft) [1.75 bits](https://huggingface.co/VPTQ-community/Mistral-Large-Instruct-2407-v16-k65536-4096-woft) [1.625 bits](https://huggingface.co/VPTQ-community/Mistral-Large-Instruct-2407-v16-k65536-1024-woft) [1.5 bits](https://huggingface.co/VPTQ-community/Mistral-Large-Instruct-2407-v16-k65536-256-woft) |
| Qwen 2.5 7B Instruct | [HF 🤗](https://huggingface.co/collections/VPTQ-community/vptq-qwen-25-7b-instruct-without-finetune-66f3e9866d3167cc05ce954a) | [4 bits](https://huggingface.co/VPTQ-community/Qwen2.5-7B-Instruct-v8-k65536-65536-woft) [3 bits](https://huggingface.co/VPTQ-community/Qwen2.5-7B-Instruct-v8-k65536-256-woft) [2 bits (1)](https://huggingface.co/VPTQ-community/Qwen2.5-7B-Instruct-v8-k256-256-woft) [2 bits (2)](https://huggingface.co/VPTQ-community/Qwen2.5-7B-Instruct-v8-k65536-0-woft) [2 bits (3)](https://huggingface.co/VPTQ-community/Qwen2.5-7B-Instruct-v16-k65536-65536-woft) |
| Qwen 2.5 14B Instruct | [HF 🤗](https://huggingface.co/collections/VPTQ-community/vptq-qwen-25-14b-instruct-without-finetune-66f827f83c7ffa7931b8376c) | [4 bits](https://huggingface.co/VPTQ-community/Qwen2.5-14B-Instruct-v8-k65536-65536-woft) [3 bits](https://huggingface.co/VPTQ-community/Qwen2.5-14B-Instruct-v8-k65536-256-woft) [2 bits (1)](https://huggingface.co/VPTQ-community/Qwen2.5-14B-Instruct-v8-k256-256-woft) [2 bits (2)](https://huggingface.co/VPTQ-community/Qwen2.5-14B-Instruct-v8-k65536-0-woft) [2 bits (3)](https://huggingface.co/VPTQ-community/Qwen2.5-14B-Instruct-v16-k65536-65536-woft) |
| Qwen 2.5 32B Instruct | [HF 🤗](https://huggingface.co/collections/VPTQ-community/vptq-qwen-25-32b-instruct-without-finetune-66fe77173bf7d64139f0f613) | [4 bits](https://huggingface.co/VPTQ-community/Qwen2.5-32B-Instruct-v8-k65536-65536-woft) [3 bits](https://huggingface.co/VPTQ-community/Qwen2.5-32B-Instruct-v8-k65536-256-woft) [2 bits (1)](https://huggingface.co/VPTQ-community/Qwen2.5-32B-Instruct-v16-k65536-65536-woft) [2 bits (2)](https://huggingface.co/VPTQ-community/Qwen2.5-32B-Instruct-v8-k65536-0-woft) [2 bits (3)](https://huggingface.co/VPTQ-community/Qwen2.5-32B-Instruct-v8-k256-256-woft) |
| Qwen 2.5 72B Instruct | [HF 🤗](https://huggingface.co/collections/VPTQ-community/vptq-qwen-25-72b-instruct-without-finetune-66f3bf1b3757dfa1ecb481c0) | [4 bits](https://huggingface.co/VPTQ-community/Qwen2.5-72B-Instruct-v8-k65536-65536-woft) [3 bits](https://huggingface.co/VPTQ-community/Qwen2.5-72B-Instruct-v8-k65536-256-woft) [2.38 bits](https://huggingface.co/VPTQ-community/Qwen2.5-72B-Instruct-v8-k1024-512-woft) [2.25 bits (1)](https://huggingface.co/VPTQ-community/Qwen2.5-72B-Instruct-v8-k512-512-woft) [2.25 bits (2)](https://huggingface.co/VPTQ-community/Qwen2.5-72B-Instruct-v8-k65536-4-woft) [2 bits (1)](https://huggingface.co/VPTQ-community/Qwen2.5-72B-Instruct-v8-k65536-0-woft) [2 bits (2)](https://huggingface.co/VPTQ-community/Qwen2.5-72B-Instruct-v16-k65536-65536-woft) [1.94 bits](https://huggingface.co/VPTQ-community/Qwen2.5-72B-Instruct-v16-k65536-32768-woft) |
| Reproduced from the tech report | [HF 🤗](https://huggingface.co/collections/VPTQ-community/reproduced-vptq-tech-report-baseline-66fbf1dffe741cc9e93ecf04) | Results from the open source community for reference only, please use them responsibly. |
| Hessian and Inverse Hessian Matrix | [HF 🤗](https://huggingface.co/collections/VPTQ-community/hessian-and-invhessian-checkpoints-66fd249a104850d17b23fd8b) | Collected from RedPajama-Data-1T-Sample, following [Quip#](https://github.com/Cornell-RelaxML/quip-sharp/blob/main/quantize_llama/hessian_offline_llama.py)