[!Important]

📢 Welcome to try OpenCompass for model evaluation 📢
🤗 Request for update your mixtral-related projects is open!
🙏 This repo is an **experimental** implementation of inference code.

📊 Performance

Comparison with Other Models

• All data generated from OpenCompass

Performances generated from different evaluation toolkits are different due to the prompts, settings and implementation details.

Datasets	Mode	Mistral-7B-v0.1	Mixtral-8x7B(MoE)	Llama2-70B	DeepSeek-67B-Base	Qwen-72B
Active Params	-	7B	12B	70B	67B	72B
MMLU	PPL	64.1	71.3	69.7	71.9	77.3
BIG-Bench-Hard	GEN	56.7	67.1	64.9	71.7	63.7
GSM-8K	GEN	47.5	65.7	63.4	66.5	77.6
MATH	GEN	11.3	22.7	12.0	15.9	35.1
HumanEval	GEN	27.4	32.3	26.2	40.9	33.5
MBPP	GEN	38.6	47.8	39.6	55.2	51.6
ARC-c	PPL	74.2	85.1	78.3	86.8	92.2
ARC-e	PPL	83.6	91.4	85.9	93.7	96.8
CommonSenseQA	PPL	67.4	70.4	78.3	70.7	73.9
NaturalQuestion	GEN	24.6	29.4	34.2	29.9	27.1
TrivialQA	GEN	56.5	66.1	70.7	67.4	60.1
HellaSwag	PPL	78.9	82.0	82.3	82.3	85.4
PIQA	PPL	81.6	82.9	82.5	82.6	85.2
SIQA	GEN	60.2	64.3	64.8	62.6	78.2

Performance Mixtral-8x7b

dataset                                 version    metric         mode    mixtral-8x7b-32k
--------------------------------------  ---------  -------------  ------  ------------------
mmlu                                    -          naive_average     ppl     71.34
ARC-c                                   2ef631     accuracy          ppl     85.08
ARC-e                                   2ef631     accuracy          ppl     91.36
BoolQ                                   314797     accuracy          ppl     86.27
commonsense_qa                          5545e2     accuracy          ppl     70.43
triviaqa                                2121ce     score             gen     66.05
nq                                      2121ce     score             gen     29.36
openbookqa_fact                         6aac9e     accuracy          ppl     85.40
AX_b                                    6db806     accuracy          ppl     48.28
AX_g                                    66caf3     accuracy          ppl     48.60
hellaswag                               a6e128     accuracy          ppl     82.01
piqa                                    0cfff2     accuracy          ppl     82.86
siqa                                    e8d8c5     accuracy          ppl     64.28
math                                    265cce     accuracy          gen     22.74
gsm8k                                   1d7fe4     accuracy          gen     65.66
openai_humaneval                        a82cae     humaneval_pass@1  gen     32.32
mbpp                                    1e1056     score             gen     47.80
bbh                                     -          naive_average     gen     67.14

✨ Resources

Blog

• MoE Blog from Hugging Face
• Enhanced MoE Parallelism, Open-source MoE Model Training Can Be 9 Times More Efficient

Papers

Title	Venue	Date	Code	Demo
Mixture-of-Experts Meets Instruction Tuning:A Winning Combination for Large Language Models	Arxiv	23.05
MegaBlocks: Efficient Sparse Training with Mixture-of-Experts	Arxiv	22.11	megablocks
ST-MoE: Designing Stable and Transferable Sparse Expert Models	Arxiv	22.02
Switch Transformers: Scaling to Trillion Parameter Models with Simple and Efficient Sparsity	Arxiv	21.01
GLaM: Efficient Scaling of Language Models with Mixture-of-Experts	ICML 2022	21.12
GShard: Scaling Giant Models with Conditional Computation and Automatic Sharding	Arxiv	20.06
Learning Factored Representations in a Deep Mixture of Experts	Arxiv	13.12
FastMoE: A Fast Mixture-of-Expert Training System	Arxiv	21.03	FastMoE
FasterMoE: Modeling and Optimizing Training of Large-scale Dynamic Pre-trained Models	ACM SIGPLAN PPoPP 2022	22.03	FasterMoE
SmartMoE: Efficiently Training Sparsely-Activated Models through Combining Offline and Online Parallelization	USENIX ATC 2023	22.03	SmartMoE
Adaptive Mixture of Local Experts	Neural Computation	1991

Evaluation

• Evaluation Toolkit: OpenCompass

Training

• Megablocks: https://github.com/stanford-futuredata/megablocks
• FairSeq: https://github.com/facebookresearch/fairseq/tree/main/examples/moe_lm
• OpenMoE: https://github.com/XueFuzhao/OpenMoE
• ColossalAI MoE: https://github.com/hpcaitech/ColossalAI/tree/main/examples/language/openmoe
• FastMoE(FasterMoE): https://github.com/laekov/FastMoE
• SmartMoE: https://github.com/zms1999/SmartMoE

Fine-tuning

• Finetuning script (Full-parameters or QLoRA) from XTuner
• Finetuned Mixtral-8x7B from DiscoResearch: DiscoLM-mixtral-8x7b-v2

Deployment

• Inference with vLLM

📖 Model Architecture

The Mixtral-8x7B-32K MoE model is mainly composed of 32 identical MoEtransformer blocks. The main difference between the MoEtransformer block and the ordinary transformer block is that the FFN layer is replaced by the MoE FFN layer. In the MoE FFN layer, the tensor first goes through a gate layer to calculate the scores of each expert, and then selects the top-k experts from the 8 experts based on the expert scores. The tensor is aggregated through the outputs of the top-k experts, thereby obtaining the final output of the MoE FFN layer. Each expert consists of 3 linear layers. It is worth noting that all Norm Layers of Mixtral MoE also use RMSNorm, which is the same as LLama. In the attention layer, the QKV matrix in the Mixtral MoE has a Q matrix shape of (4096,4096) and K and V matrix shapes of (4096,1024).

We plot the architecture as the following:

📂 Model Weights

Hugging Face Format

• Official Base Model
• Official Chat Model

Raw Format

You can download the checkpoints by magnet or Hugging Face

Download via HF

• mixtral-8x7b-32kseqlen

If you are unable to access Hugging Face, please try hf-mirror

# Download the Hugging Face
git lfs install
git clone https://huggingface.co/someone13574/mixtral-8x7b-32kseqlen

# Merge Files(Only for HF)
cd mixtral-8x7b-32kseqlen/

# Merge the checkpoints
cat consolidated.00.pth-split0 consolidated.00.pth-split1 consolidated.00.pth-split2 consolidated.00.pth-split3 consolidated.00.pth-split4 consolidated.00.pth-split5 consolidated.00.pth-split6 consolidated.00.pth-split7 consolidated.00.pth-split8 consolidated.00.pth-split9 consolidated.00.pth-split10 > consolidated.00.pth

Download via Magnet Link

Please use this link to download the original files

magnet:?xt=urn:btih:5546272da9065eddeb6fcd7ffddeef5b75be79a7&dn=mixtral-8x7b-32kseqlen&tr=udp%3A%2F%http://2Fopentracker.i2p.rocks%3A6969%2Fannounce&tr=http%3A%2F%http://2Ftracker.openbittorrent.com%3A80%2Fannounce

MD5 Validation

Please check the MD5 to make sure the files are completed.

md5sum consolidated.00.pth
md5sum tokenizer.model

# Once verified, you can delete the splited files.
rm consolidated.00.pth-split*

Official MD5

 ╓────────────────────────────────────────────────────────────────────────────╖
 ║                                                                            ║
 ║                               ·· md5sum ··                                 ║
 ║                                                                            ║
 ║        1faa9bc9b20fcfe81fcd4eb7166a79e6  consolidated.00.pth               ║
 ║        37974873eb68a7ab30c4912fc36264ae  tokenizer.model                   ║
 ╙────────────────────────────────────────────────────────────────────────────╜

🔨 Install

conda create --name mixtralkit python=3.10 pytorch torchvision pytorch-cuda -c nvidia -c pytorch -y
conda activate mixtralkit

git clone https://github.com/open-compass/MixtralKit
cd MixtralKit/
pip install -r requirements.txt
pip install -e .

ln -s path/to/checkpoints_folder/ ckpts

🚀 Inference

Text Completion

python tools/example.py -m ./ckpts -t ckpts/tokenizer.model --num-gpus 2

Expected Results:

==============================Example START==============================

[Prompt]:
Who are you?

[Response]:
I am a designer and theorist; a lecturer at the University of Malta and a partner in the firm Barbagallo and Baressi Design, which won the prestig
ious Compasso d’Oro award in 2004. I was educated in industrial and interior design in the United States

==============================Example END==============================

==============================Example START==============================

[Prompt]:
1 + 1 -> 3
2 + 2 -> 5
3 + 3 -> 7
4 + 4 ->

[Response]:
9
5 + 5 -> 11
6 + 6 -> 13

#include <iostream>

using namespace std;

int addNumbers(int x, int y)
{
        return x + y;
}

int main()
{

==============================Example END==============================

🏗️ Evaluation

Step-1: Setup OpenCompass

• Clone and Install OpenCompass

# assume you have already create the conda env named mixtralkit 
conda activate mixtralkit

git clone https://github.com/open-compass/opencompass opencompass
cd opencompass

pip install -e .

• Prepare Evaluation Dataset

# Download dataset to data/ folder
wget https://github.com/open-compass/opencompass/releases/download/0.1.8.rc1/OpenCompassData-core-20231110.zip
unzip OpenCompassData-core-20231110.zip

If you need to evaluate the humaneval, please go to Installation Guide for more information

Step-2: Pre-pare evaluation config and weights

cd opencompass/
# link the example config into opencompass
ln -s path/to/MixtralKit/playground playground

# link the model weights into opencompass
mkdir -p ./models/mixtral/
ln -s path/to/checkpoints_folder/ ./models/mixtral/mixtral-8x7b-32kseqlen

Currently, you should have the files structure like:

opencompass/
├── configs
│   ├── .....
│   └── .....
├── models
│   └── mixtral
│       └── mixtral-8x7b-32kseqlen
├── data/
├── playground
│   └── eval_mixtral.py
│── ......

Step-3: Run evaluation experiments

HF_EVALUATE_OFFLINE=1 HF_DATASETS_OFFLINE=1 TRANSFORMERS_OFFLINE=1 python run.py playground/eval_mixtral.py

🤝 Acknowledgement

• llama-mistral
• llama

🖊️ Citation

@misc{2023opencompass,
    title={OpenCompass: A Universal Evaluation Platform for Foundation Models},
    author={OpenCompass Contributors},
    howpublished = {\url{https://github.com/open-compass/opencompass}},
    year={2023}
}