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README.md
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1. Long Context QA.
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We take as an example the multi-document question answering task from the paper “Lost in the Middle: How Language Models Use Long Contexts”. The input for the model consists of (i) a question that requires an answer and (ii) k documents, which are passages extracted from Wikipedia. Notably, only one of these documents contains the answer to the question, while the remaining k − 1 documents, termed as "distractor" documents, do not. To successfully perform this task, the model must identify and utilize the document containing the answer from its input context.
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With OCK, simply run the following command to fine-tune:
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```
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bash training/finetune_llama-2-7b-32k-mqa.sh
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```
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2. Summarization.
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Another example is BookSum, a unique dataset designed to address the challenges of long-form narrative summarization. This dataset features source documents from the literature domain, including novels, plays, and stories, and offers human-written, highly abstractive summaries. We here focus on chapter-level data. BookSum poses a unique set of challenges, necessitating that the model comprehensively read through each chapter.
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With OCK, simply run the following command to fine-tune:
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```
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bash training/finetune_llama-2-7b-32k-booksum.sh
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```
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## Inference
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You can use the Together API to try out Llama-2-7B-32K-beta for inference.
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The updated inference stack allows for efficient and speedy inference.
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To
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export CUDA_HOME=/usr/local/cuda-11.8
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pip install ninja
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pip install flash-attn --no-build-isolation
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pip install git+https://github.com/HazyResearch/flash-attention.git#subdirectory=csrc/rotary
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```
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(Please revise the path of `CUDA_HOME`. `ninja` is needed to accelerate the process of compiling.)
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You can also use vanilla `transformers` to load this model:
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```python
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model = AutoModelForCausalLM.from_pretrained('togethercomputer/Llama-2-7B-32KCtx-v0.1', torch_dtype=torch.float16)
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```
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You can use this model directly from the Hugging Face Model Hub or fine-tune it on your own data using the OpenChatKit.
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print(output_text)
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```
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## Limitations and Bias
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As with all language models, Llama-2-7B-32K-beta may generate incorrect or biased content. It's important to keep this in mind when using the model.
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##
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Feel free to try out the Llama-2-7B-32K-beta model on the Hugging Face Model Hub or via the Together API. We're excited to see what you'll build with it!
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## License
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1. Long Context QA.
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We take as an example the multi-document question answering task from the paper “Lost in the Middle: How Language Models Use Long Contexts”. The input for the model consists of (i) a question that requires an answer and (ii) k documents, which are passages extracted from Wikipedia. Notably, only one of these documents contains the answer to the question, while the remaining k − 1 documents, termed as "distractor" documents, do not. To successfully perform this task, the model must identify and utilize the document containing the answer from its input context.
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With OCK, simply run the following command to fine-tune:
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```
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bash training/finetune_llama-2-7b-32k-mqa.sh
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```
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2. Summarization.
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Another example is BookSum, a unique dataset designed to address the challenges of long-form narrative summarization. This dataset features source documents from the literature domain, including novels, plays, and stories, and offers human-written, highly abstractive summaries. We here focus on chapter-level data. BookSum poses a unique set of challenges, necessitating that the model comprehensively read through each chapter.
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With OCK, simply run the following command to fine-tune:
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```
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bash training/finetune_llama-2-7b-32k-booksum.sh
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```
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## Inference
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You can use the Together API to try out Llama-2-7B-32K-beta for inference.
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The updated inference stack allows for efficient and speedy inference.
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To run the model locally, we strongly recommend to install Flash Attention V2:
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```
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# Please update the path of `CUDA_HOME`
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export CUDA_HOME=/usr/local/cuda-11.8
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pip install ninja
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pip install flash-attn --no-build-isolation
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pip install git+https://github.com/HazyResearch/flash-attention.git#subdirectory=csrc/rotary
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```
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You can use this model directly from the Hugging Face Model Hub or fine-tune it on your own data using the OpenChatKit.
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print(output_text)
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```
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Alternatively, you can set `trust_remote_code=False` if you prefer not to use flash attention.
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## Limitations and Bias
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As with all language models, Llama-2-7B-32K-beta may generate incorrect or biased content. It's important to keep this in mind when using the model.
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## Community
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Join us on [Together Discord](https://discord.gg/6ZVDU8tTD4)
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