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README.md
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---
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license: llama2
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---
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---
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license: llama2
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language:
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- en
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library_name: transformers
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---
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## llama-2-7b-chat-marlin
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Example of converting a GPTQ model to Marlin format for fast batched decoding with [Marlin Kernels](https://github.com/IST-DASLab/marlin)
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### Install Marlin
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```bash
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pip install torch
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git clone https://github.com/IST-DASLab/marlin.git
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cd marlin
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pip install -e .
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```
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### Convert Model
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Convert the model from GPTQ to Marlin format. Note that this requires:
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- `sym=true`
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- `group_size=128`
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- `desc_activations=false`
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```bash
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pip install -U transformers accelerate auto-gptq optimum
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```
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Convert with the `convert.py` script in this repo:
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```bash
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python3 convert.py --model-id "TheBloke/Llama-2-7B-Chat-GPTQ" --save-path "./marlin-model" --do-generation
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```
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### Run Model
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Load with the `load.load_model` utility from this repo and run inference as usual.
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```python
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from load import load_model
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from transformers import AutoTokenizer
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# Load model from disk.
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model_path = "./marlin-model"
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model = load_model(model_path).to("cuda")
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tokenizer = AutoTokenizer.from_pretrained(model_path)
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# Generate text.
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inputs = tokenizer("My favorite song is", return_tensors="pt")
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inputs = {k: v.to("cuda") for k, v in inputs.items()}
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outputs = model.generate(**inputs, max_new_tokens=50, do_sample=False)
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print(tokenizer.batch_decode(outputs)[0])
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```
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