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README.md
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Used in [STree: Speculative Tree Decoding for Hybrid State-Space Models](https://arxiv.org/abs/2505.14969) as a draft model for speculative decoding for hybrid models.
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For more details on installation, training, and evaluation, please refer to the [GitHub repository](https://github.com/wyc1997/stree).
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## Usage
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You can use `EaModel.from_pretrained` for accelerated text generation, similar to `generate` from Hugging Face Transformers. Here is an example:
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```python
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import torch
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from eagle.model.ea_model import EaModel
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from fastchat.model import get_conversation_template
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# Load the base model and EAGLE acceleration model
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base_model_path = "JunxiongWang/Llama3.2-Mamba2-3B-distill" # Replace with your base model path
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EAGLE_model_path = "ycwu97/mamba2-distilled-small" # Replace with your EAGLE weights path
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model = EaModel.from_pretrained(
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base_model_path=base_model_path,
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ea_model_path=EAGLE_model_path,
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torch_dtype=torch.float16,
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low_cpu_mem_usage=True,
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device_map="auto",
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total_token=-1 # -1 for auto configuration of draft tokens
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)
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model.eval()
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# Prepare your message using a conversation template (e.g., Vicuna)
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your_message="Hello"
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conv = get_conversation_template("vicuna") # Use the correct chat template for your base model
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conv.append_message(conv.roles[0], your_message)
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conv.append_message(conv.roles[1], None)
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prompt = conv.get_prompt()
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# Tokenize the input prompt
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input_ids = model.tokenizer([prompt]).input_ids
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input_ids = torch.as_tensor(input_ids).cuda()
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# Generate output using EAGLE's accelerated decoding
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output_ids = model.eagenerate(input_ids, temperature=0.5, max_new_tokens=512)
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# Decode and print the generated text
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output = model.tokenizer.decode(output_ids[0])
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print(output)
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```
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**Note:** For chat models like Vicuna, LLaMA2-Chat, and LLaMA3-Instruct, you must use the correct chat template to ensure proper model output and EAGLE's performance.
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Used in [STree: Speculative Tree Decoding for Hybrid State-Space Models](https://arxiv.org/abs/2505.14969) as a draft model for speculative decoding for hybrid models.
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For more details on installation, training, and evaluation, please refer to the [GitHub repository](https://github.com/wyc1997/stree).
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