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README.md ADDED
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+ ---
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+ library_name: transformers
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+ tags: []
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+ ---
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+
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+ # Model Card for Model ID
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+
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+ <!-- Provide a quick summary of what the model is/does. -->
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+
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+
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+
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+ ## Model Details
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+
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+ ### Model Description
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+
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+ <!-- Provide a longer summary of what this model is. -->
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+
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+ This is the model card of a 🤗 transformers model that has been pushed on the Hub. This model card has been automatically generated.
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+
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+ - **Developed by:** [More Information Needed]
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+ - **Funded by [optional]:** [More Information Needed]
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+ - **Shared by [optional]:** [More Information Needed]
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+ - **Model type:** [More Information Needed]
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+ - **Language(s) (NLP):** [More Information Needed]
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+ - **License:** [More Information Needed]
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+ - **Finetuned from model [optional]:** [More Information Needed]
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+
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+ ### Model Sources [optional]
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+
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+ <!-- Provide the basic links for the model. -->
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+
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+ - **Repository:** [More Information Needed]
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+ - **Paper [optional]:** [More Information Needed]
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+ - **Demo [optional]:** [More Information Needed]
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+
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+ ## Uses
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+
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+ <!-- Address questions around how the model is intended to be used, including the foreseeable users of the model and those affected by the model. -->
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+
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+ ### Direct Use
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+
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+ <!-- This section is for the model use without fine-tuning or plugging into a larger ecosystem/app. -->
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+
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+ [More Information Needed]
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+
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+ ### Downstream Use [optional]
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+
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+ <!-- This section is for the model use when fine-tuned for a task, or when plugged into a larger ecosystem/app -->
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+
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+ [More Information Needed]
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+
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+ ### Out-of-Scope Use
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+
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+ <!-- This section addresses misuse, malicious use, and uses that the model will not work well for. -->
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+
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+ [More Information Needed]
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+
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+ ## Bias, Risks, and Limitations
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+
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+ <!-- This section is meant to convey both technical and sociotechnical limitations. -->
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+
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+ [More Information Needed]
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+
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+ ### Recommendations
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+
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+ <!-- This section is meant to convey recommendations with respect to the bias, risk, and technical limitations. -->
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+
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+ Users (both direct and downstream) should be made aware of the risks, biases and limitations of the model. More information needed for further recommendations.
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+
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+ ## How to Get Started with the Model
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+
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+ Use the code below to get started with the model.
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+
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+ [More Information Needed]
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+
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+ ## Training Details
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+
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+ ### Training Data
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+
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+ <!-- This should link to a Dataset Card, perhaps with a short stub of information on what the training data is all about as well as documentation related to data pre-processing or additional filtering. -->
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+
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+ [More Information Needed]
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+
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+ ### Training Procedure
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+
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+ <!-- This relates heavily to the Technical Specifications. Content here should link to that section when it is relevant to the training procedure. -->
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+
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+ #### Preprocessing [optional]
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+
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+ [More Information Needed]
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+
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+
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+ #### Training Hyperparameters
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+
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+ - **Training regime:** [More Information Needed] <!--fp32, fp16 mixed precision, bf16 mixed precision, bf16 non-mixed precision, fp16 non-mixed precision, fp8 mixed precision -->
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+
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+ #### Speeds, Sizes, Times [optional]
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+
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+ <!-- This section provides information about throughput, start/end time, checkpoint size if relevant, etc. -->
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+
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+ [More Information Needed]
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+
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+ ## Evaluation
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+
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+ <!-- This section describes the evaluation protocols and provides the results. -->
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+
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+ ### Testing Data, Factors & Metrics
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+
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+ #### Testing Data
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+
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+ <!-- This should link to a Dataset Card if possible. -->
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+
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+ [More Information Needed]
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+
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+ #### Factors
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+
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+ <!-- These are the things the evaluation is disaggregating by, e.g., subpopulations or domains. -->
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+
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+ [More Information Needed]
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+
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+ #### Metrics
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+
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+ <!-- These are the evaluation metrics being used, ideally with a description of why. -->
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+
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+ [More Information Needed]
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+
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+ ### Results
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+
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+ [More Information Needed]
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+
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+ #### Summary
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+
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+
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+
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+ ## Model Examination [optional]
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+
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+ <!-- Relevant interpretability work for the model goes here -->
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+
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+ [More Information Needed]
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+
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+ ## Environmental Impact
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+
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+ <!-- Total emissions (in grams of CO2eq) and additional considerations, such as electricity usage, go here. Edit the suggested text below accordingly -->
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+
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+ Carbon emissions can be estimated using the [Machine Learning Impact calculator](https://mlco2.github.io/impact#compute) presented in [Lacoste et al. (2019)](https://arxiv.org/abs/1910.09700).
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+
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+ - **Hardware Type:** [More Information Needed]
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+ - **Hours used:** [More Information Needed]
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+ - **Cloud Provider:** [More Information Needed]
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+ - **Compute Region:** [More Information Needed]
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+ - **Carbon Emitted:** [More Information Needed]
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+
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+ ## Technical Specifications [optional]
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+
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+ ### Model Architecture and Objective
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+
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+ [More Information Needed]
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+
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+ ### Compute Infrastructure
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+
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+ [More Information Needed]
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+
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+ #### Hardware
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+
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+ [More Information Needed]
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+
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+ #### Software
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+
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+ [More Information Needed]
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+
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+ ## Citation [optional]
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+
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+ <!-- If there is a paper or blog post introducing the model, the APA and Bibtex information for that should go in this section. -->
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+
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+ **BibTeX:**
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+
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+ [More Information Needed]
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+
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+ **APA:**
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+
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+ [More Information Needed]
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+
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+ ## Glossary [optional]
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+
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+ <!-- If relevant, include terms and calculations in this section that can help readers understand the model or model card. -->
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+
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+ [More Information Needed]
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+
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+ ## More Information [optional]
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+
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+ [More Information Needed]
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+
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+ ## Model Card Authors [optional]
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+
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+ [More Information Needed]
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+
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+ ## Model Card Contact
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+
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+ [More Information Needed]
config.json ADDED
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+ {
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+ "_commit_hash": null,
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+ "_name_or_path": "/workspace/final-model/internvl-chat-v1_5/v0-20240706-072215/checkpoint-125-merged",
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+ "architectures": [
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+ "InternVLChatModel"
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+ ],
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+ "auto_map": {
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+ "AutoConfig": "configuration_internvl_chat.InternVLChatConfig",
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+ "AutoModel": "modeling_internvl_chat.InternVLChatModel",
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+ "AutoModelForCausalLM": "modeling_internvl_chat.InternVLChatModel"
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+ },
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+ "downsample_ratio": 0.5,
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+ "dynamic_image_size": true,
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+ "force_image_size": 448,
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+ "hidden_size": 6144,
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+ "llm_config": {
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+ "_name_or_path": "pretrained/internlm2-chat-20b/",
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+ "add_cross_attention": false,
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+ "architectures": [
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+ "InternLM2ForCausalLM"
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+ ],
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+ "attn_implementation": "eager",
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+ "auto_map": {
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+ "AutoConfig": "configuration_internlm2.InternLM2Config",
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+ "AutoModel": "modeling_internlm2.InternLM2ForCausalLM",
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+ "AutoModelForCausalLM": "modeling_internlm2.InternLM2ForCausalLM"
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+ },
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+ "bad_words_ids": null,
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+ "begin_suppress_tokens": null,
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+ "bias": false,
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+ "bos_token_id": 1,
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+ "chunk_size_feed_forward": 0,
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+ "cross_attention_hidden_size": null,
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+ "decoder_start_token_id": null,
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+ "diversity_penalty": 0.0,
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+ "do_sample": false,
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+ "early_stopping": false,
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+ "encoder_no_repeat_ngram_size": 0,
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+ "eos_token_id": 2,
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+ "exponential_decay_length_penalty": null,
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+ "finetuning_task": null,
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+ "forced_bos_token_id": null,
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+ "forced_eos_token_id": null,
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+ "hidden_act": "silu",
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+ "hidden_size": 6144,
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+ "id2label": {
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+ "0": "LABEL_0",
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+ "1": "LABEL_1"
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+ },
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+ "initializer_range": 0.02,
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+ "intermediate_size": 16384,
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+ "is_decoder": false,
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+ "is_encoder_decoder": false,
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+ "label2id": {
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+ "LABEL_0": 0,
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+ "LABEL_1": 1
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+ },
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+ "length_penalty": 1.0,
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+ "max_length": 20,
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+ "max_position_embeddings": 32768,
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+ "min_length": 0,
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+ "model_type": "internlm2",
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+ "no_repeat_ngram_size": 0,
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+ "num_attention_heads": 48,
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+ "num_beam_groups": 1,
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+ "num_beams": 1,
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+ "num_hidden_layers": 48,
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+ "num_key_value_heads": 8,
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+ "num_return_sequences": 1,
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+ "output_attentions": false,
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+ "output_hidden_states": false,
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+ "output_scores": false,
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+ "pad_token_id": 2,
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+ "prefix": null,
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+ "problem_type": null,
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+ "pruned_heads": {},
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+ "remove_invalid_values": false,
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+ "repetition_penalty": 1.0,
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+ "return_dict": true,
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+ "return_dict_in_generate": false,
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+ "rms_norm_eps": 1e-05,
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+ "rope_scaling": {
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+ "factor": 3.0,
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+ "type": "dynamic"
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+ },
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+ "rope_theta": 1000000,
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+ "sep_token_id": null,
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+ "suppress_tokens": null,
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+ "task_specific_params": null,
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+ "temperature": 1.0,
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+ "tf_legacy_loss": false,
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+ "tie_encoder_decoder": false,
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+ "tie_word_embeddings": false,
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+ "tokenizer_class": null,
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+ "top_k": 50,
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+ "top_p": 1.0,
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+ "torch_dtype": "bfloat16",
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+ "torchscript": false,
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+ "transformers_version": "4.42.3",
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+ "typical_p": 1.0,
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+ "use_bfloat16": false,
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+ "use_cache": true,
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+ "vocab_size": 92553
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+ },
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+ "max_dynamic_patch": 12,
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+ "max_position_embeddings": 32768,
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+ "min_dynamic_patch": 1,
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+ "model_type": "internvl_chat",
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+ "pad2square": false,
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+ "ps_version": "v2",
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+ "select_layer": -1,
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+ "template": "internlm2-chat",
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+ "torch_dtype": "bfloat16",
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+ "transformers_version": null,
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+ "use_backbone_lora": 0,
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+ "use_llm_lora": 0,
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+ "use_thumbnail": true,
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+ "vision_config": {
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+ "_name_or_path": "OpenGVLab/InternViT-6B-448px-V1-5",
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+ "add_cross_attention": false,
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+ "architectures": [
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+ "InternVisionModel"
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+ ],
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+ "attention_dropout": 0.0,
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+ "auto_map": {
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+ "AutoConfig": "configuration_intern_vit.InternVisionConfig",
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+ "AutoModel": "modeling_intern_vit.InternVisionModel"
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+ },
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+ "bad_words_ids": null,
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+ "begin_suppress_tokens": null,
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+ "bos_token_id": null,
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+ "chunk_size_feed_forward": 0,
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+ "cross_attention_hidden_size": null,
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+ "decoder_start_token_id": null,
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+ "diversity_penalty": 0.0,
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+ "do_sample": false,
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+ "drop_path_rate": 0.4,
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+ "dropout": 0.0,
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+ "early_stopping": false,
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+ "encoder_no_repeat_ngram_size": 0,
141
+ "eos_token_id": null,
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+ "exponential_decay_length_penalty": null,
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+ "finetuning_task": null,
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+ "forced_bos_token_id": null,
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+ "forced_eos_token_id": null,
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+ "hidden_act": "gelu",
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+ "hidden_size": 3200,
148
+ "id2label": {
149
+ "0": "LABEL_0",
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+ "1": "LABEL_1"
151
+ },
152
+ "image_size": 448,
153
+ "initializer_factor": 0.1,
154
+ "initializer_range": 1e-10,
155
+ "intermediate_size": 12800,
156
+ "is_decoder": false,
157
+ "is_encoder_decoder": false,
158
+ "label2id": {
159
+ "LABEL_0": 0,
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+ "LABEL_1": 1
161
+ },
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+ "layer_norm_eps": 1e-06,
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+ "length_penalty": 1.0,
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+ "max_length": 20,
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+ "min_length": 0,
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+ "model_type": "intern_vit_6b",
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+ "no_repeat_ngram_size": 0,
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+ "norm_type": "rms_norm",
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+ "num_attention_heads": 25,
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+ "num_beam_groups": 1,
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+ "num_beams": 1,
172
+ "num_channels": 3,
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+ "num_hidden_layers": 45,
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+ "num_return_sequences": 1,
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+ "output_attentions": false,
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+ "output_hidden_states": false,
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+ "output_scores": false,
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+ "pad_token_id": null,
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+ "patch_size": 14,
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+ "prefix": null,
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+ "problem_type": null,
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+ "pruned_heads": {},
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+ "qk_normalization": true,
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+ "qkv_bias": false,
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+ "remove_invalid_values": false,
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+ "repetition_penalty": 1.0,
187
+ "return_dict": true,
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+ "return_dict_in_generate": false,
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+ "sep_token_id": null,
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+ "suppress_tokens": null,
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+ "task_specific_params": null,
192
+ "temperature": 1.0,
193
+ "tf_legacy_loss": false,
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+ "tie_encoder_decoder": false,
195
+ "tie_word_embeddings": true,
196
+ "tokenizer_class": null,
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+ "top_k": 50,
198
+ "top_p": 1.0,
199
+ "torch_dtype": "bfloat16",
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+ "torchscript": false,
201
+ "transformers_version": "4.42.3",
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+ "typical_p": 1.0,
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+ "use_bfloat16": true,
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+ "use_flash_attn": false
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+ }
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+ }
configuration_intern_vit.py ADDED
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+ # --------------------------------------------------------
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+ # InternVL
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+ # Copyright (c) 2023 OpenGVLab
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+ # Licensed under The MIT License [see LICENSE for details]
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+ # --------------------------------------------------------
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+ import os
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+ from typing import Union
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+
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+ from transformers.configuration_utils import PretrainedConfig
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+ from transformers.utils import logging
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+
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+ logger = logging.get_logger(__name__)
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+
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+
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+ class InternVisionConfig(PretrainedConfig):
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+ r"""
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+ This is the configuration class to store the configuration of a [`InternVisionModel`]. It is used to
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+ instantiate a vision encoder according to the specified arguments, defining the model architecture.
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+
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+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
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+ documentation from [`PretrainedConfig`] for more information.
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+
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+ Args:
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+ num_channels (`int`, *optional*, defaults to 3):
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+ Number of color channels in the input images (e.g., 3 for RGB).
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+ patch_size (`int`, *optional*, defaults to 14):
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+ The size (resolution) of each patch.
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+ image_size (`int`, *optional*, defaults to 224):
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+ The size (resolution) of each image.
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+ qkv_bias (`bool`, *optional*, defaults to `False`):
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+ Whether to add a bias to the queries and values in the self-attention layers.
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+ hidden_size (`int`, *optional*, defaults to 3200):
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+ Dimensionality of the encoder layers and the pooler layer.
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+ num_attention_heads (`int`, *optional*, defaults to 25):
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+ Number of attention heads for each attention layer in the Transformer encoder.
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+ intermediate_size (`int`, *optional*, defaults to 12800):
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+ Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
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+ qk_normalization (`bool`, *optional*, defaults to `True`):
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+ Whether to normalize the queries and keys in the self-attention layers.
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+ num_hidden_layers (`int`, *optional*, defaults to 48):
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+ Number of hidden layers in the Transformer encoder.
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+ use_flash_attn (`bool`, *optional*, defaults to `True`):
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+ Whether to use flash attention mechanism.
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+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
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+ The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
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+ `"relu"`, `"selu"` and `"gelu_new"` ``"gelu"` are supported.
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+ layer_norm_eps (`float`, *optional*, defaults to 1e-6):
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+ The epsilon used by the layer normalization layers.
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+ dropout (`float`, *optional*, defaults to 0.0):
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+ The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
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+ drop_path_rate (`float`, *optional*, defaults to 0.0):
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+ Dropout rate for stochastic depth.
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+ attention_dropout (`float`, *optional*, defaults to 0.0):
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+ The dropout ratio for the attention probabilities.
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+ initializer_range (`float`, *optional*, defaults to 0.02):
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+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
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+ initializer_factor (`float`, *optional*, defaults to 0.1):
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+ A factor for layer scale.
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+ """
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+
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+ model_type = 'intern_vit_6b'
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+
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+ def __init__(
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+ self,
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+ num_channels=3,
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+ patch_size=14,
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+ image_size=224,
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+ qkv_bias=False,
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+ hidden_size=3200,
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+ num_attention_heads=25,
71
+ intermediate_size=12800,
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+ qk_normalization=True,
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+ num_hidden_layers=48,
74
+ use_flash_attn=True,
75
+ hidden_act='gelu',
76
+ norm_type='rms_norm',
77
+ layer_norm_eps=1e-6,
78
+ dropout=0.0,
79
+ drop_path_rate=0.0,
80
+ attention_dropout=0.0,
81
+ initializer_range=0.02,
82
+ initializer_factor=0.1,
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+ **kwargs,
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+ ):
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+ super().__init__(**kwargs)
86
+
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+ self.hidden_size = hidden_size
88
+ self.intermediate_size = intermediate_size
89
+ self.dropout = dropout
90
+ self.drop_path_rate = drop_path_rate
91
+ self.num_hidden_layers = num_hidden_layers
92
+ self.num_attention_heads = num_attention_heads
93
+ self.num_channels = num_channels
94
+ self.patch_size = patch_size
95
+ self.image_size = image_size
96
+ self.initializer_range = initializer_range
97
+ self.initializer_factor = initializer_factor
98
+ self.attention_dropout = attention_dropout
99
+ self.layer_norm_eps = layer_norm_eps
100
+ self.hidden_act = hidden_act
101
+ self.norm_type = norm_type
102
+ self.qkv_bias = qkv_bias
103
+ self.qk_normalization = qk_normalization
104
+ self.use_flash_attn = use_flash_attn
105
+
106
+ @classmethod
107
+ def from_pretrained(cls, pretrained_model_name_or_path: Union[str, os.PathLike], **kwargs) -> 'PretrainedConfig':
108
+ config_dict, kwargs = cls.get_config_dict(pretrained_model_name_or_path, **kwargs)
109
+
110
+ if 'vision_config' in config_dict:
111
+ config_dict = config_dict['vision_config']
112
+
113
+ if 'model_type' in config_dict and hasattr(cls, 'model_type') and config_dict['model_type'] != cls.model_type:
114
+ logger.warning(
115
+ f"You are using a model of type {config_dict['model_type']} to instantiate a model of type "
116
+ f'{cls.model_type}. This is not supported for all configurations of models and can yield errors.'
117
+ )
118
+
119
+ return cls.from_dict(config_dict, **kwargs)
configuration_internlm2.py ADDED
@@ -0,0 +1,150 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright (c) The InternLM team and The HuggingFace Inc. team. All rights reserved.
2
+ #
3
+ # This code is based on transformers/src/transformers/models/llama/configuration_llama.py
4
+ #
5
+ # Licensed under the Apache License, Version 2.0 (the "License");
6
+ # you may not use this file except in compliance with the License.
7
+ # You may obtain a copy of the License at
8
+ #
9
+ # http://www.apache.org/licenses/LICENSE-2.0
10
+ #
11
+ # Unless required by applicable law or agreed to in writing, software
12
+ # distributed under the License is distributed on an "AS IS" BASIS,
13
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14
+ # See the License for the specific language governing permissions and
15
+ # limitations under the License.
16
+ """ InternLM2 model configuration"""
17
+
18
+ from transformers.configuration_utils import PretrainedConfig
19
+ from transformers.utils import logging
20
+
21
+ logger = logging.get_logger(__name__)
22
+
23
+ INTERNLM2_PRETRAINED_CONFIG_ARCHIVE_MAP = {}
24
+
25
+
26
+ # Modified from transformers.model.llama.configuration_llama.LlamaConfig
27
+ class InternLM2Config(PretrainedConfig):
28
+ r"""
29
+ This is the configuration class to store the configuration of a [`InternLM2Model`]. It is used to instantiate
30
+ an InternLM2 model according to the specified arguments, defining the model architecture. Instantiating a
31
+ configuration with the defaults will yield a similar configuration to that of the InternLM2-7B.
32
+
33
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
34
+ documentation from [`PretrainedConfig`] for more information.
35
+
36
+
37
+ Args:
38
+ vocab_size (`int`, *optional*, defaults to 32000):
39
+ Vocabulary size of the InternLM2 model. Defines the number of different tokens that can be represented by the
40
+ `inputs_ids` passed when calling [`InternLM2Model`]
41
+ hidden_size (`int`, *optional*, defaults to 4096):
42
+ Dimension of the hidden representations.
43
+ intermediate_size (`int`, *optional*, defaults to 11008):
44
+ Dimension of the MLP representations.
45
+ num_hidden_layers (`int`, *optional*, defaults to 32):
46
+ Number of hidden layers in the Transformer encoder.
47
+ num_attention_heads (`int`, *optional*, defaults to 32):
48
+ Number of attention heads for each attention layer in the Transformer encoder.
49
+ num_key_value_heads (`int`, *optional*):
50
+ This is the number of key_value heads that should be used to implement Grouped Query Attention. If
51
+ `num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if
52
+ `num_key_value_heads=1 the model will use Multi Query Attention (MQA) otherwise GQA is used. When
53
+ converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed
54
+ by meanpooling all the original heads within that group. For more details checkout [this
55
+ paper](https://arxiv.org/pdf/2305.13245.pdf). If it is not specified, will default to
56
+ `num_attention_heads`.
57
+ hidden_act (`str` or `function`, *optional*, defaults to `"silu"`):
58
+ The non-linear activation function (function or string) in the decoder.
59
+ max_position_embeddings (`int`, *optional*, defaults to 2048):
60
+ The maximum sequence length that this model might ever be used with. Typically set this to something large
61
+ just in case (e.g., 512 or 1024 or 2048).
62
+ initializer_range (`float`, *optional*, defaults to 0.02):
63
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
64
+ rms_norm_eps (`float`, *optional*, defaults to 1e-12):
65
+ The epsilon used by the rms normalization layers.
66
+ use_cache (`bool`, *optional*, defaults to `True`):
67
+ Whether or not the model should return the last key/values attentions (not used by all models). Only
68
+ relevant if `config.is_decoder=True`.
69
+ tie_word_embeddings(`bool`, *optional*, defaults to `False`):
70
+ Whether to tie weight embeddings
71
+ Example:
72
+
73
+ """
74
+ model_type = 'internlm2'
75
+ _auto_class = 'AutoConfig'
76
+
77
+ def __init__( # pylint: disable=W0102
78
+ self,
79
+ vocab_size=103168,
80
+ hidden_size=4096,
81
+ intermediate_size=11008,
82
+ num_hidden_layers=32,
83
+ num_attention_heads=32,
84
+ num_key_value_heads=None,
85
+ hidden_act='silu',
86
+ max_position_embeddings=2048,
87
+ initializer_range=0.02,
88
+ rms_norm_eps=1e-6,
89
+ use_cache=True,
90
+ pad_token_id=0,
91
+ bos_token_id=1,
92
+ eos_token_id=2,
93
+ tie_word_embeddings=False,
94
+ bias=True,
95
+ rope_theta=10000,
96
+ rope_scaling=None,
97
+ attn_implementation='eager',
98
+ **kwargs,
99
+ ):
100
+ self.vocab_size = vocab_size
101
+ self.max_position_embeddings = max_position_embeddings
102
+ self.hidden_size = hidden_size
103
+ self.intermediate_size = intermediate_size
104
+ self.num_hidden_layers = num_hidden_layers
105
+ self.num_attention_heads = num_attention_heads
106
+ self.bias = bias
107
+
108
+ if num_key_value_heads is None:
109
+ num_key_value_heads = num_attention_heads
110
+ self.num_key_value_heads = num_key_value_heads
111
+
112
+ self.hidden_act = hidden_act
113
+ self.initializer_range = initializer_range
114
+ self.rms_norm_eps = rms_norm_eps
115
+ self.use_cache = use_cache
116
+ self.rope_theta = rope_theta
117
+ self.rope_scaling = rope_scaling
118
+ self._rope_scaling_validation()
119
+
120
+ self.attn_implementation = attn_implementation
121
+ if self.attn_implementation is None:
122
+ self.attn_implementation = 'eager'
123
+ super().__init__(
124
+ pad_token_id=pad_token_id,
125
+ bos_token_id=bos_token_id,
126
+ eos_token_id=eos_token_id,
127
+ tie_word_embeddings=tie_word_embeddings,
128
+ **kwargs,
129
+ )
130
+
131
+ def _rope_scaling_validation(self):
132
+ """
133
+ Validate the `rope_scaling` configuration.
134
+ """
135
+ if self.rope_scaling is None:
136
+ return
137
+
138
+ if not isinstance(self.rope_scaling, dict) or len(self.rope_scaling) != 2:
139
+ raise ValueError(
140
+ '`rope_scaling` must be a dictionary with with two fields, `type` and `factor`, '
141
+ f'got {self.rope_scaling}'
142
+ )
143
+ rope_scaling_type = self.rope_scaling.get('type', None)
144
+ rope_scaling_factor = self.rope_scaling.get('factor', None)
145
+ if rope_scaling_type is None or rope_scaling_type not in ['linear', 'dynamic']:
146
+ raise ValueError(
147
+ f"`rope_scaling`'s type field must be one of ['linear', 'dynamic'], got {rope_scaling_type}"
148
+ )
149
+ if rope_scaling_factor is None or not isinstance(rope_scaling_factor, float) or rope_scaling_factor < 1.0:
150
+ raise ValueError(f"`rope_scaling`'s factor field must be a float >= 1, got {rope_scaling_factor}")
configuration_internvl_chat.py ADDED
@@ -0,0 +1,99 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # --------------------------------------------------------
2
+ # InternVL
3
+ # Copyright (c) 2023 OpenGVLab
4
+ # Licensed under The MIT License [see LICENSE for details]
5
+ # --------------------------------------------------------
6
+
7
+ import copy
8
+
9
+ from transformers import AutoConfig, LlamaConfig
10
+ from transformers.configuration_utils import PretrainedConfig
11
+ from transformers.utils import logging
12
+
13
+ from .configuration_intern_vit import InternVisionConfig
14
+ from .configuration_internlm2 import InternLM2Config
15
+
16
+ logger = logging.get_logger(__name__)
17
+
18
+
19
+ class InternVLChatConfig(PretrainedConfig):
20
+ model_type = 'internvl_chat'
21
+ is_composition = True
22
+
23
+ def __init__(
24
+ self,
25
+ vision_config=None,
26
+ llm_config=None,
27
+ use_backbone_lora=0,
28
+ use_llm_lora=0,
29
+ pad2square=False,
30
+ select_layer=-1,
31
+ force_image_size=None,
32
+ downsample_ratio=0.5,
33
+ template=None,
34
+ dynamic_image_size=False,
35
+ use_thumbnail=False,
36
+ ps_version='v1',
37
+ min_dynamic_patch=1,
38
+ max_dynamic_patch=6,
39
+ **kwargs):
40
+ super().__init__(**kwargs)
41
+
42
+ if vision_config is None:
43
+ vision_config = {}
44
+ logger.info('vision_config is None. Initializing the InternVisionConfig with default values.')
45
+
46
+ if llm_config is None:
47
+ llm_config = {}
48
+ logger.info('llm_config is None. Initializing the LlamaConfig config with default values (`LlamaConfig`).')
49
+
50
+ self.vision_config = InternVisionConfig(**vision_config)
51
+ if llm_config['architectures'][0] == 'LlamaForCausalLM':
52
+ self.llm_config = LlamaConfig(**llm_config)
53
+ elif llm_config['architectures'][0] == 'InternLM2ForCausalLM':
54
+ self.llm_config = InternLM2Config(**llm_config)
55
+ else:
56
+ raise ValueError('Unsupported architecture: {}'.format(llm_config['architectures'][0]))
57
+ self.use_backbone_lora = use_backbone_lora
58
+ self.use_llm_lora = use_llm_lora
59
+ self.pad2square = pad2square
60
+ self.select_layer = select_layer
61
+ self.force_image_size = force_image_size
62
+ self.downsample_ratio = downsample_ratio
63
+ self.template = template
64
+ self.dynamic_image_size = dynamic_image_size
65
+ self.use_thumbnail = use_thumbnail
66
+ self.ps_version = ps_version # pixel shuffle version
67
+ self.min_dynamic_patch = min_dynamic_patch
68
+ self.max_dynamic_patch = max_dynamic_patch
69
+
70
+ logger.info(f'vision_select_layer: {self.select_layer}')
71
+ logger.info(f'ps_version: {self.ps_version}')
72
+ logger.info(f'min_dynamic_patch: {self.min_dynamic_patch}')
73
+ logger.info(f'max_dynamic_patch: {self.max_dynamic_patch}')
74
+
75
+ def to_dict(self):
76
+ """
77
+ Serializes this instance to a Python dictionary. Override the default [`~PretrainedConfig.to_dict`].
78
+
79
+ Returns:
80
+ `Dict[str, any]`: Dictionary of all the attributes that make up this configuration instance,
81
+ """
82
+ output = copy.deepcopy(self.__dict__)
83
+ output['vision_config'] = self.vision_config.to_dict()
84
+ output['llm_config'] = self.llm_config.to_dict()
85
+ output['model_type'] = self.__class__.model_type
86
+ output['use_backbone_lora'] = self.use_backbone_lora
87
+ output['use_llm_lora'] = self.use_llm_lora
88
+ output['pad2square'] = self.pad2square
89
+ output['select_layer'] = self.select_layer
90
+ output['force_image_size'] = self.force_image_size
91
+ output['downsample_ratio'] = self.downsample_ratio
92
+ output['template'] = self.template
93
+ output['dynamic_image_size'] = self.dynamic_image_size
94
+ output['use_thumbnail'] = self.use_thumbnail
95
+ output['ps_version'] = self.ps_version
96
+ output['min_dynamic_patch'] = self.min_dynamic_patch
97
+ output['max_dynamic_patch'] = self.max_dynamic_patch
98
+
99
+ return output
conversation.py ADDED
@@ -0,0 +1,1260 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ """
2
+ Conversation prompt templates.
3
+
4
+ We kindly request that you import fastchat instead of copying this file if you wish to use it.
5
+ If you have any changes in mind, please contribute back so the community can benefit collectively and continue to maintain these valuable templates.
6
+ """
7
+
8
+ import dataclasses
9
+ from enum import IntEnum, auto
10
+ from typing import Any, Dict, List, Tuple, Union
11
+
12
+
13
+ class SeparatorStyle(IntEnum):
14
+ """Separator styles."""
15
+
16
+ ADD_COLON_SINGLE = auto()
17
+ ADD_COLON_TWO = auto()
18
+ ADD_COLON_SPACE_SINGLE = auto()
19
+ NO_COLON_SINGLE = auto()
20
+ NO_COLON_TWO = auto()
21
+ ADD_NEW_LINE_SINGLE = auto()
22
+ LLAMA2 = auto()
23
+ CHATGLM = auto()
24
+ CHATML = auto()
25
+ CHATINTERN = auto()
26
+ DOLLY = auto()
27
+ RWKV = auto()
28
+ PHOENIX = auto()
29
+ ROBIN = auto()
30
+ FALCON_CHAT = auto()
31
+ CHATGLM3 = auto()
32
+ INTERNVL_ZH = auto()
33
+ MPT = auto()
34
+
35
+
36
+ @dataclasses.dataclass
37
+ class Conversation:
38
+ """A class that manages prompt templates and keeps all conversation history."""
39
+
40
+ # The name of this template
41
+ name: str
42
+ # The template of the system prompt
43
+ system_template: str = '{system_message}'
44
+ # The system message
45
+ system_message: str = ''
46
+ # The names of two roles
47
+ roles: Tuple[str] = ('USER', 'ASSISTANT')
48
+ # All messages. Each item is (role, message).
49
+ messages: List[List[str]] = ()
50
+ # The number of few shot examples
51
+ offset: int = 0
52
+ # The separator style and configurations
53
+ sep_style: SeparatorStyle = SeparatorStyle.ADD_COLON_SINGLE
54
+ sep: str = '\n'
55
+ sep2: str = None
56
+ # Stop criteria (the default one is EOS token)
57
+ stop_str: Union[str, List[str]] = None
58
+ # Stops generation if meeting any token in this list
59
+ stop_token_ids: List[int] = None
60
+
61
+ def get_prompt(self) -> str:
62
+ """Get the prompt for generation."""
63
+ system_prompt = self.system_template.format(system_message=self.system_message)
64
+ if self.sep_style == SeparatorStyle.ADD_COLON_SINGLE:
65
+ ret = system_prompt + self.sep
66
+ for role, message in self.messages:
67
+ if message:
68
+ ret += role + ': ' + message + self.sep
69
+ else:
70
+ ret += role + ':'
71
+ return ret
72
+ elif self.sep_style == SeparatorStyle.ADD_COLON_TWO:
73
+ seps = [self.sep, self.sep2]
74
+ ret = system_prompt + seps[0]
75
+ for i, (role, message) in enumerate(self.messages):
76
+ if message:
77
+ ret += role + ': ' + message + seps[i % 2]
78
+ else:
79
+ ret += role + ':'
80
+ return ret
81
+ elif self.sep_style == SeparatorStyle.ADD_COLON_SPACE_SINGLE:
82
+ ret = system_prompt + self.sep
83
+ for role, message in self.messages:
84
+ if message:
85
+ ret += role + ': ' + message + self.sep
86
+ else:
87
+ ret += role + ': ' # must be end with a space
88
+ return ret
89
+ elif self.sep_style == SeparatorStyle.ADD_NEW_LINE_SINGLE:
90
+ ret = '' if system_prompt == '' else system_prompt + self.sep
91
+ for role, message in self.messages:
92
+ if message:
93
+ ret += role + '\n' + message + self.sep
94
+ else:
95
+ ret += role + '\n'
96
+ return ret
97
+ elif self.sep_style == SeparatorStyle.NO_COLON_SINGLE:
98
+ ret = system_prompt
99
+ for role, message in self.messages:
100
+ if message:
101
+ ret += role + message + self.sep
102
+ else:
103
+ ret += role
104
+ return ret
105
+ elif self.sep_style == SeparatorStyle.NO_COLON_TWO:
106
+ seps = [self.sep, self.sep2]
107
+ ret = system_prompt
108
+ for i, (role, message) in enumerate(self.messages):
109
+ if message:
110
+ ret += role + message + seps[i % 2]
111
+ else:
112
+ ret += role
113
+ return ret
114
+ elif self.sep_style == SeparatorStyle.RWKV:
115
+ ret = system_prompt
116
+ for i, (role, message) in enumerate(self.messages):
117
+ if message:
118
+ ret += (
119
+ role
120
+ + ': '
121
+ + message.replace('\r\n', '\n').replace('\n\n', '\n')
122
+ )
123
+ ret += '\n\n'
124
+ else:
125
+ ret += role + ':'
126
+ return ret
127
+ elif self.sep_style == SeparatorStyle.LLAMA2:
128
+ seps = [self.sep, self.sep2]
129
+ if self.system_message:
130
+ ret = system_prompt
131
+ else:
132
+ ret = '[INST] '
133
+ for i, (role, message) in enumerate(self.messages):
134
+ tag = self.roles[i % 2]
135
+ if message:
136
+ if i == 0:
137
+ ret += message + ' '
138
+ else:
139
+ ret += tag + ' ' + message + seps[i % 2]
140
+ else:
141
+ ret += tag
142
+ return ret
143
+ elif self.sep_style == SeparatorStyle.CHATGLM:
144
+ # source: https://huggingface.co/THUDM/chatglm-6b/blob/1d240ba371910e9282298d4592532d7f0f3e9f3e/modeling_chatglm.py#L1302-L1308
145
+ # source2: https://huggingface.co/THUDM/chatglm2-6b/blob/e186c891cf64310ac66ef10a87e6635fa6c2a579/modeling_chatglm.py#L926
146
+ round_add_n = 1 if self.name == 'chatglm2' else 0
147
+ if system_prompt:
148
+ ret = system_prompt + self.sep
149
+ else:
150
+ ret = ''
151
+
152
+ for i, (role, message) in enumerate(self.messages):
153
+ if i % 2 == 0:
154
+ ret += f'[Round {i//2 + round_add_n}]{self.sep}'
155
+
156
+ if message:
157
+ ret += f'{role}:{message}{self.sep}'
158
+ else:
159
+ ret += f'{role}:'
160
+ return ret
161
+ elif self.sep_style == SeparatorStyle.CHATML:
162
+ ret = '' if system_prompt == '' else system_prompt + self.sep + '\n'
163
+ for role, message in self.messages:
164
+ if message:
165
+ ret += role + '\n' + message + self.sep + '\n'
166
+ else:
167
+ ret += role + '\n'
168
+ return ret
169
+ elif self.sep_style == SeparatorStyle.CHATGLM3:
170
+ ret = ''
171
+ if self.system_message:
172
+ ret += system_prompt
173
+ for role, message in self.messages:
174
+ if message:
175
+ ret += role + '\n' + ' ' + message
176
+ else:
177
+ ret += role
178
+ return ret
179
+ elif self.sep_style == SeparatorStyle.CHATINTERN:
180
+ # source: https://huggingface.co/internlm/internlm-chat-7b-8k/blob/bd546fa984b4b0b86958f56bf37f94aa75ab8831/modeling_internlm.py#L771
181
+ seps = [self.sep, self.sep2]
182
+ ret = system_prompt
183
+ for i, (role, message) in enumerate(self.messages):
184
+ # if i % 2 == 0:
185
+ # ret += "<s>"
186
+ if message:
187
+ ret += role + ':' + message + seps[i % 2] + '\n'
188
+ else:
189
+ ret += role + ':'
190
+ return ret
191
+ elif self.sep_style == SeparatorStyle.DOLLY:
192
+ seps = [self.sep, self.sep2]
193
+ ret = system_prompt
194
+ for i, (role, message) in enumerate(self.messages):
195
+ if message:
196
+ ret += role + ':\n' + message + seps[i % 2]
197
+ if i % 2 == 1:
198
+ ret += '\n\n'
199
+ else:
200
+ ret += role + ':\n'
201
+ return ret
202
+ elif self.sep_style == SeparatorStyle.PHOENIX:
203
+ ret = system_prompt
204
+ for role, message in self.messages:
205
+ if message:
206
+ ret += role + ': ' + '<s>' + message + '</s>'
207
+ else:
208
+ ret += role + ': ' + '<s>'
209
+ return ret
210
+ elif self.sep_style == SeparatorStyle.ROBIN:
211
+ ret = system_prompt + self.sep
212
+ for role, message in self.messages:
213
+ if message:
214
+ ret += role + ':\n' + message + self.sep
215
+ else:
216
+ ret += role + ':\n'
217
+ return ret
218
+ elif self.sep_style == SeparatorStyle.FALCON_CHAT:
219
+ ret = ''
220
+ if self.system_message:
221
+ ret += system_prompt + self.sep
222
+ for role, message in self.messages:
223
+ if message:
224
+ ret += role + ': ' + message + self.sep
225
+ else:
226
+ ret += role + ':'
227
+
228
+ return ret
229
+ elif self.sep_style == SeparatorStyle.INTERNVL_ZH:
230
+ seps = [self.sep, self.sep2]
231
+ ret = self.system_message + seps[0]
232
+ for i, (role, message) in enumerate(self.messages):
233
+ if message:
234
+ ret += role + ': ' + message + seps[i % 2]
235
+ else:
236
+ ret += role + ':'
237
+ return ret
238
+ elif self.sep_style == SeparatorStyle.MPT:
239
+ ret = system_prompt + self.sep
240
+ for role, message in self.messages:
241
+ if message:
242
+ if type(message) is tuple:
243
+ message, _, _ = message
244
+ ret += role + message + self.sep
245
+ else:
246
+ ret += role
247
+ return ret
248
+ else:
249
+ raise ValueError(f'Invalid style: {self.sep_style}')
250
+
251
+ def set_system_message(self, system_message: str):
252
+ """Set the system message."""
253
+ self.system_message = system_message
254
+
255
+ def append_message(self, role: str, message: str):
256
+ """Append a new message."""
257
+ self.messages.append([role, message])
258
+
259
+ def update_last_message(self, message: str):
260
+ """Update the last output.
261
+
262
+ The last message is typically set to be None when constructing the prompt,
263
+ so we need to update it in-place after getting the response from a model.
264
+ """
265
+ self.messages[-1][1] = message
266
+
267
+ def to_gradio_chatbot(self):
268
+ """Convert the conversation to gradio chatbot format."""
269
+ ret = []
270
+ for i, (role, msg) in enumerate(self.messages[self.offset :]):
271
+ if i % 2 == 0:
272
+ ret.append([msg, None])
273
+ else:
274
+ ret[-1][-1] = msg
275
+ return ret
276
+
277
+ def to_openai_api_messages(self):
278
+ """Convert the conversation to OpenAI chat completion format."""
279
+ ret = [{'role': 'system', 'content': self.system_message}]
280
+
281
+ for i, (_, msg) in enumerate(self.messages[self.offset :]):
282
+ if i % 2 == 0:
283
+ ret.append({'role': 'user', 'content': msg})
284
+ else:
285
+ if msg is not None:
286
+ ret.append({'role': 'assistant', 'content': msg})
287
+ return ret
288
+
289
+ def copy(self):
290
+ return Conversation(
291
+ name=self.name,
292
+ system_template=self.system_template,
293
+ system_message=self.system_message,
294
+ roles=self.roles,
295
+ messages=[[x, y] for x, y in self.messages],
296
+ offset=self.offset,
297
+ sep_style=self.sep_style,
298
+ sep=self.sep,
299
+ sep2=self.sep2,
300
+ stop_str=self.stop_str,
301
+ stop_token_ids=self.stop_token_ids,
302
+ )
303
+
304
+ def dict(self):
305
+ return {
306
+ 'template_name': self.name,
307
+ 'system_message': self.system_message,
308
+ 'roles': self.roles,
309
+ 'messages': self.messages,
310
+ 'offset': self.offset,
311
+ }
312
+
313
+
314
+ # A global registry for all conversation templates
315
+ conv_templates: Dict[str, Conversation] = {}
316
+
317
+
318
+ def register_conv_template(template: Conversation, override: bool = False):
319
+ """Register a new conversation template."""
320
+ if not override:
321
+ assert (
322
+ template.name not in conv_templates
323
+ ), f'{template.name} has been registered.'
324
+
325
+ conv_templates[template.name] = template
326
+
327
+
328
+ def get_conv_template(name: str) -> Conversation:
329
+ """Get a conversation template."""
330
+ return conv_templates[name].copy()
331
+
332
+
333
+ # An empty template for raw conversation.
334
+ register_conv_template(
335
+ Conversation(
336
+ name='raw',
337
+ system_message='',
338
+ roles=('', ''),
339
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
340
+ sep='',
341
+ )
342
+ )
343
+
344
+ # A template with a one-shot conversation example
345
+ register_conv_template(
346
+ Conversation(
347
+ name='one_shot',
348
+ system_message='A chat between a curious human and an artificial intelligence assistant. '
349
+ "The assistant gives helpful, detailed, and polite answers to the human's questions.",
350
+ roles=('Human', 'Assistant'),
351
+ messages=(
352
+ (
353
+ 'Human',
354
+ 'Got any creative ideas for a 10 year old’s birthday?',
355
+ ),
356
+ (
357
+ 'Assistant',
358
+ """Of course! Here are some creative ideas for a 10-year-old's birthday party:
359
+ 1. Treasure Hunt: Organize a treasure hunt in your backyard or nearby park. Create clues and riddles for the kids to solve, leading them to hidden treasures and surprises.
360
+ 2. Science Party: Plan a science-themed party where kids can engage in fun and interactive experiments. You can set up different stations with activities like making slime, erupting volcanoes, or creating simple chemical reactions.
361
+ 3. Outdoor Movie Night: Set up a backyard movie night with a projector and a large screen or white sheet. Create a cozy seating area with blankets and pillows, and serve popcorn and snacks while the kids enjoy a favorite movie under the stars.
362
+ 4. DIY Crafts Party: Arrange a craft party where kids can unleash their creativity. Provide a variety of craft supplies like beads, paints, and fabrics, and let them create their own unique masterpieces to take home as party favors.
363
+ 5. Sports Olympics: Host a mini Olympics event with various sports and games. Set up different stations for activities like sack races, relay races, basketball shooting, and obstacle courses. Give out medals or certificates to the participants.
364
+ 6. Cooking Party: Have a cooking-themed party where the kids can prepare their own mini pizzas, cupcakes, or cookies. Provide toppings, frosting, and decorating supplies, and let them get hands-on in the kitchen.
365
+ 7. Superhero Training Camp: Create a superhero-themed party where the kids can engage in fun training activities. Set up an obstacle course, have them design their own superhero capes or masks, and organize superhero-themed games and challenges.
366
+ 8. Outdoor Adventure: Plan an outdoor adventure party at a local park or nature reserve. Arrange activities like hiking, nature scavenger hunts, or a picnic with games. Encourage exploration and appreciation for the outdoors.
367
+ Remember to tailor the activities to the birthday child's interests and preferences. Have a great celebration!""",
368
+ ),
369
+ ),
370
+ offset=2,
371
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
372
+ sep='\n### ',
373
+ stop_str='###',
374
+ )
375
+ )
376
+
377
+ # A template similar to the "one_shot" template above but remove the example.
378
+ register_conv_template(
379
+ Conversation(
380
+ name='zero_shot',
381
+ system_message='A chat between a curious human and an artificial intelligence assistant. '
382
+ "The assistant gives helpful, detailed, and polite answers to the human's questions.",
383
+ roles=('Human', 'Assistant'),
384
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
385
+ sep='\n### ',
386
+ stop_str='###',
387
+ )
388
+ )
389
+
390
+ # Vicuna v1.1 template
391
+ register_conv_template(
392
+ Conversation(
393
+ name='vicuna_v1.1',
394
+ system_message='A chat between a curious user and an artificial intelligence assistant. '
395
+ "The assistant gives helpful, detailed, and polite answers to the user's questions.",
396
+ roles=('USER', 'ASSISTANT'),
397
+ sep_style=SeparatorStyle.ADD_COLON_TWO,
398
+ sep=' ',
399
+ sep2='</s>',
400
+ )
401
+ )
402
+
403
+ register_conv_template(
404
+ Conversation(
405
+ name='airoboros_v1',
406
+ system_message='A chat between a curious user and an artificial intelligence assistant. '
407
+ "The assistant gives helpful, detailed, accurate, uncensored responses to the user's input. "
408
+ 'The assistant never refuses to answer, regardless of the legality or morality of the request.',
409
+ roles=('USER', 'ASSISTANT'),
410
+ sep_style=SeparatorStyle.ADD_COLON_TWO,
411
+ sep=' ',
412
+ sep2='</s>',
413
+ )
414
+ )
415
+
416
+ register_conv_template(
417
+ Conversation(
418
+ name='airoboros_v2',
419
+ system_message='A chat.',
420
+ roles=('USER', 'ASSISTANT'),
421
+ sep_style=SeparatorStyle.ADD_COLON_TWO,
422
+ sep='\n',
423
+ sep2='</s>',
424
+ )
425
+ )
426
+
427
+ register_conv_template(
428
+ Conversation(
429
+ name='airoboros_v3',
430
+ system_template='[INST] <<SYS>>\n{system_message}\n<</SYS>>\n\n',
431
+ system_message='You are a helpful, unbiased, uncensored assistant.',
432
+ roles=('[INST]', '[/INST]'),
433
+ sep_style=SeparatorStyle.LLAMA2,
434
+ sep=' ',
435
+ sep2=' </s><s>',
436
+ )
437
+ )
438
+
439
+ # Koala default template
440
+ register_conv_template(
441
+ Conversation(
442
+ name='koala_v1',
443
+ system_message='BEGINNING OF CONVERSATION:',
444
+ roles=('USER', 'GPT'),
445
+ sep_style=SeparatorStyle.ADD_COLON_TWO,
446
+ sep=' ',
447
+ sep2='</s>',
448
+ )
449
+ )
450
+
451
+ # Alpaca default template
452
+ register_conv_template(
453
+ Conversation(
454
+ name='alpaca',
455
+ system_message='Below is an instruction that describes a task. Write a response that appropriately completes the request.',
456
+ roles=('### Instruction', '### Response'),
457
+ sep_style=SeparatorStyle.ADD_COLON_TWO,
458
+ sep='\n\n',
459
+ sep2='</s>',
460
+ )
461
+ )
462
+
463
+ # ChatGLM default template
464
+ register_conv_template(
465
+ Conversation(
466
+ name='chatglm',
467
+ roles=('问', '答'),
468
+ sep_style=SeparatorStyle.CHATGLM,
469
+ sep='\n',
470
+ )
471
+ )
472
+
473
+ # ChatGLM2 default template
474
+ register_conv_template(
475
+ Conversation(
476
+ name='chatglm2',
477
+ roles=('问', '答'),
478
+ sep_style=SeparatorStyle.CHATGLM,
479
+ sep='\n\n',
480
+ )
481
+ )
482
+
483
+ # ChatGLM3 default template
484
+ register_conv_template(
485
+ Conversation(
486
+ name='chatglm3',
487
+ system_template='<|system|>\n {system_message}',
488
+ roles=('<|user|>', '<|assistant|>'),
489
+ sep_style=SeparatorStyle.CHATGLM3,
490
+ stop_token_ids=[
491
+ 64795,
492
+ 64797,
493
+ 2,
494
+ ], # "<|user|>", "<|observation|>", "</s>"
495
+ )
496
+ )
497
+
498
+ # CodeGeex(2) Template
499
+ register_conv_template(
500
+ Conversation(
501
+ name='codegeex',
502
+ roles=('', ''),
503
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
504
+ sep='\n\n',
505
+ stop_token_ids=[0, 2],
506
+ )
507
+ )
508
+
509
+ # Dolly V2 default template
510
+ register_conv_template(
511
+ Conversation(
512
+ name='dolly_v2',
513
+ system_message='Below is an instruction that describes a task. Write a response that appropriately completes the request.\n\n',
514
+ roles=('### Instruction', '### Response'),
515
+ sep_style=SeparatorStyle.DOLLY,
516
+ sep='\n\n',
517
+ sep2='### End',
518
+ )
519
+ )
520
+
521
+ # OpenAssistant Pythia default template
522
+ register_conv_template(
523
+ Conversation(
524
+ name='oasst_pythia',
525
+ roles=('<|prompter|>', '<|assistant|>'),
526
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
527
+ sep='<|endoftext|>',
528
+ )
529
+ )
530
+
531
+ # OpenAssistant default template
532
+ register_conv_template(
533
+ Conversation(
534
+ name='oasst_llama',
535
+ roles=('<|prompter|>', '<|assistant|>'),
536
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
537
+ sep='</s>',
538
+ )
539
+ )
540
+
541
+ # OpenChat 3.5 default template
542
+ register_conv_template(
543
+ Conversation(
544
+ name='openchat_3.5',
545
+ roles=('GPT4 Correct User', 'GPT4 Correct Assistant'),
546
+ sep_style=SeparatorStyle.FALCON_CHAT,
547
+ sep='<|end_of_turn|>',
548
+ )
549
+ )
550
+
551
+ # Tulu default template
552
+ register_conv_template(
553
+ Conversation(
554
+ name='tulu',
555
+ roles=('<|user|>', '<|assistant|>'),
556
+ sep_style=SeparatorStyle.ADD_NEW_LINE_SINGLE,
557
+ sep='\n',
558
+ )
559
+ )
560
+
561
+ # StableLM Alpha default template
562
+ register_conv_template(
563
+ Conversation(
564
+ name='stablelm',
565
+ system_template='<|SYSTEM|>{system_message}',
566
+ system_message="""# StableLM Tuned (Alpha version)
567
+ - StableLM is a helpful and harmless open-source AI language model developed by StabilityAI.
568
+ - StableLM is excited to be able to help the user, but will refuse to do anything that could be considered harmful to the user.
569
+ - StableLM is more than just an information source, StableLM is also able to write poetry, short stories, and make jokes.
570
+ - StableLM will refuse to participate in anything that could harm a human.
571
+ """,
572
+ roles=('<|USER|>', '<|ASSISTANT|>'),
573
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
574
+ sep='',
575
+ stop_token_ids=[50278, 50279, 50277, 1, 0],
576
+ )
577
+ )
578
+
579
+ # Baize default template
580
+ register_conv_template(
581
+ Conversation(
582
+ name='baize',
583
+ system_message='The following is a conversation between a human and an AI assistant named Baize (named after a mythical creature in Chinese folklore). Baize is an open-source AI assistant developed by UCSD and Sun Yat-Sen University. The human and the AI assistant take turns chatting. Human statements start with [|Human|] and AI assistant statements start with [|AI|]. The AI assistant always provides responses in as much detail as possible, and in Markdown format. The AI assistant always declines to engage with topics, questions and instructions related to unethical, controversial, or sensitive issues. Complete the transcript in exactly that format.\n',
584
+ roles=('[|Human|]', '[|AI|]'),
585
+ messages=(
586
+ ('[|Human|]', 'Hello!'),
587
+ ('[|AI|]', 'Hi!'),
588
+ ),
589
+ offset=2,
590
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
591
+ sep='\n',
592
+ stop_str='[|Human|]',
593
+ )
594
+ )
595
+
596
+ # RWKV-4-Raven default template
597
+ register_conv_template(
598
+ Conversation(
599
+ name='rwkv',
600
+ roles=('Bob', 'Alice'),
601
+ messages=(
602
+ ('Bob', 'hi'),
603
+ (
604
+ 'Alice',
605
+ 'Hi. I am your assistant and I will provide expert full response in full details. Please feel free to ask any question and I will always answer it.',
606
+ ),
607
+ ),
608
+ offset=2,
609
+ sep_style=SeparatorStyle.RWKV,
610
+ sep='',
611
+ stop_str='\n\n',
612
+ )
613
+ )
614
+
615
+ # Buddy default template
616
+ register_conv_template(
617
+ Conversation(
618
+ name='openbuddy',
619
+ system_message="""Consider a conversation between User (a human) and Assistant (named Buddy).
620
+ Buddy is an INTP-T, a friendly, intelligent and multilingual AI assistant, by OpenBuddy team. GitHub: https://github.com/OpenBuddy/OpenBuddy
621
+ Buddy cannot access the Internet.
622
+ Buddy can fluently speak the user's language (e.g. English, Chinese).
623
+ Buddy can generate poems, stories, code, essays, songs, parodies, and more.
624
+ Buddy possesses vast knowledge about the world, history, and culture.
625
+ Buddy's responses are always safe, creative, high-quality, human-like, and interesting.
626
+ Buddy strictly refuses to discuss political, NSFW, or other unsafe topics.
627
+
628
+ User: Hi.
629
+ Assistant: Hi, I'm Buddy, your AI assistant. How can I help you today?""",
630
+ roles=('User', 'Assistant'),
631
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
632
+ sep='\n',
633
+ )
634
+ )
635
+
636
+ # Phoenix default template
637
+ register_conv_template(
638
+ Conversation(
639
+ name='phoenix',
640
+ system_message="A chat between a curious human and an artificial intelligence assistant. The assistant gives helpful, detailed, and polite answers to the human's questions.\n\n",
641
+ roles=('Human', 'Assistant'),
642
+ sep_style=SeparatorStyle.PHOENIX,
643
+ sep='</s>',
644
+ )
645
+ )
646
+
647
+ # ReaLM default template
648
+ register_conv_template(
649
+ Conversation(
650
+ name='ReaLM-7b-v1',
651
+ system_message="A chat between a curious human and an artificial intelligence assistant. The assistant gives helpful, detailed, and polite answers to the human's questions.\n\n",
652
+ roles=('Human', 'Assistant'),
653
+ sep_style=SeparatorStyle.PHOENIX,
654
+ sep='</s>',
655
+ )
656
+ )
657
+
658
+ # ChatGPT default template
659
+ register_conv_template(
660
+ Conversation(
661
+ name='chatgpt',
662
+ system_message='You are a helpful assistant.',
663
+ roles=('user', 'assistant'),
664
+ sep_style=None,
665
+ sep=None,
666
+ )
667
+ )
668
+
669
+ # Claude default template
670
+ register_conv_template(
671
+ Conversation(
672
+ name='claude',
673
+ roles=('Human', 'Assistant'),
674
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
675
+ sep='\n\n',
676
+ )
677
+ )
678
+
679
+ # MPT default template
680
+ register_conv_template(
681
+ Conversation(
682
+ name='mpt-7b-chat',
683
+ system_template="""<|im_start|>system
684
+ {system_message}""",
685
+ system_message="""- You are a helpful assistant chatbot trained by MosaicML.
686
+ - You answer questions.
687
+ - You are excited to be able to help the user, but will refuse to do anything that could be considered harmful to the user.
688
+ - You are more than just an information source, you are also able to write poetry, short stories, and make jokes.""",
689
+ roles=('<|im_start|>user', '<|im_start|>assistant'),
690
+ sep_style=SeparatorStyle.CHATML,
691
+ sep='<|im_end|>',
692
+ stop_token_ids=[50278, 0],
693
+ )
694
+ )
695
+
696
+ # MPT-30b-chat default template
697
+ register_conv_template(
698
+ Conversation(
699
+ name='mpt-30b-chat',
700
+ system_template="""<|im_start|>system
701
+ {system_message}""",
702
+ system_message="""A conversation between a user and an LLM-based AI assistant. The assistant gives helpful and honest answers.""",
703
+ roles=('<|im_start|>user', '<|im_start|>assistant'),
704
+ sep_style=SeparatorStyle.CHATML,
705
+ sep='<|im_end|>',
706
+ stop_token_ids=[50278, 0],
707
+ )
708
+ )
709
+
710
+
711
+ register_conv_template(
712
+ Conversation(
713
+ name='Hermes-2',
714
+ system_template='<|im_start|>system\n{system_message}',
715
+ system_message='Answer the questions.',
716
+ roles=('<|im_start|>user\n', '<|im_start|>assistant\n'),
717
+ sep_style=SeparatorStyle.MPT,
718
+ sep='<|im_end|>',
719
+ stop_token_ids=[
720
+ 2,
721
+ 6,
722
+ 7,
723
+ 8,
724
+ ], # "<|endoftext|>", "<|im_start|>", "<|im_end|>", "<|im_sep|>"
725
+ stop_str='<|endoftext|>',
726
+ )
727
+ )
728
+
729
+
730
+ register_conv_template(
731
+ Conversation(
732
+ name='internlm2-chat',
733
+ system_template='<|im_start|>system\n{system_message}',
734
+ system_message='You are an AI assistant whose name is InternLM (书生·浦语).',
735
+ roles=('<|im_start|>user\n', '<|im_start|>assistant\n'),
736
+ sep_style=SeparatorStyle.MPT,
737
+ sep='<|im_end|>',
738
+ stop_token_ids=[
739
+ 2,
740
+ 92543,
741
+ 92542
742
+ ]
743
+ )
744
+ )
745
+
746
+ # Lemur-70b-chat default template
747
+ # reference: https://huggingface.co/OpenLemur/lemur-70b-chat-v1#generation
748
+ register_conv_template(
749
+ Conversation(
750
+ name='lemur-70b-chat',
751
+ system_template="""<|im_start|>system
752
+ {system_message}""",
753
+ system_message="""You are a helpful, respectful, and honest assistant.""",
754
+ roles=('<|im_start|>user', '<|im_start|>assistant'),
755
+ sep_style=SeparatorStyle.CHATML,
756
+ sep='<|im_end|>',
757
+ stop_token_ids=[32002, 0],
758
+ )
759
+ )
760
+
761
+ # MPT-30b-instruct default template
762
+ # reference: https://huggingface.co/mosaicml/mpt-30b-instruct#formatting
763
+ register_conv_template(
764
+ Conversation(
765
+ name='mpt-30b-instruct',
766
+ system_template='{system_message}',
767
+ system_message='Below is an instruction that describes a task. Write a response that appropriately completes the request.',
768
+ roles=('### Instruction', '### Response'),
769
+ sep_style=SeparatorStyle.ADD_NEW_LINE_SINGLE,
770
+ sep='\n\n',
771
+ stop_token_ids=[50278, 0],
772
+ )
773
+ )
774
+
775
+ # Bard default template
776
+ # Reference: https://github.com/google/generative-ai-python/blob/9c99bcb474a991a97a2e7d62fcdb52db7ce40729/google/generativeai/discuss.py#L150
777
+ # https://github.com/google/generative-ai-python/blob/9c99bcb474a991a97a2e7d62fcdb52db7ce40729/google/generativeai/discuss.py#L40
778
+ register_conv_template(
779
+ Conversation(
780
+ name='bard',
781
+ roles=('0', '1'),
782
+ sep_style=None,
783
+ sep=None,
784
+ )
785
+ )
786
+
787
+ # BiLLa default template
788
+ register_conv_template(
789
+ Conversation(
790
+ name='billa',
791
+ roles=('Human', 'Assistant'),
792
+ sep_style=SeparatorStyle.ADD_COLON_SPACE_SINGLE,
793
+ sep='\n',
794
+ stop_str='Human:',
795
+ )
796
+ )
797
+
798
+ # RedPajama INCITE default template
799
+ register_conv_template(
800
+ Conversation(
801
+ name='redpajama-incite',
802
+ roles=('<human>', '<bot>'),
803
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
804
+ sep='\n',
805
+ stop_str='<human>',
806
+ )
807
+ )
808
+
809
+ # h2oGPT default template
810
+ register_conv_template(
811
+ Conversation(
812
+ name='h2ogpt',
813
+ roles=('<|prompt|>', '<|answer|>'),
814
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
815
+ sep='</s>',
816
+ )
817
+ )
818
+
819
+ # Robin default template
820
+ register_conv_template(
821
+ Conversation(
822
+ name='Robin',
823
+ system_message="A chat between a curious human and an artificial intelligence assistant. The assistant gives helpful, detailed, and polite answers to the human's questions.",
824
+ roles=('###Human', '###Assistant'),
825
+ sep_style=SeparatorStyle.ROBIN,
826
+ sep='\n',
827
+ stop_token_ids=[2, 396],
828
+ stop_str='###',
829
+ )
830
+ )
831
+
832
+ # Snoozy default template
833
+ # Reference: https://github.com/nomic-ai/gpt4all/blob/d4861030b778da6db59d21d2927a4aba4f9f1f43/gpt4all-bindings/python/gpt4all/gpt4all.py#L232
834
+ register_conv_template(
835
+ Conversation(
836
+ name='snoozy',
837
+ system_template='### Instruction:\n{system_message}',
838
+ system_message='The prompt below is a question to answer, a task to complete, or a conversation to respond to; decide which and write an appropriate response.',
839
+ roles=('### Prompt', '### Response'),
840
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
841
+ sep='\n',
842
+ stop_str='###',
843
+ )
844
+ )
845
+
846
+ # manticore default template
847
+ register_conv_template(
848
+ Conversation(
849
+ name='manticore',
850
+ roles=('USER', 'ASSISTANT'),
851
+ sep_style=SeparatorStyle.ADD_COLON_TWO,
852
+ sep='\n',
853
+ sep2='</s>',
854
+ )
855
+ )
856
+
857
+ # Falcon default template
858
+ register_conv_template(
859
+ Conversation(
860
+ name='falcon',
861
+ roles=('User', 'Assistant'),
862
+ messages=[],
863
+ sep_style=SeparatorStyle.RWKV,
864
+ sep='\n',
865
+ sep2='<|endoftext|>',
866
+ stop_str='\nUser', # use stop_str to stop generation after stop_token_ids, it will also remove stop_str from the generated text
867
+ stop_token_ids=[
868
+ 0,
869
+ 1,
870
+ 2,
871
+ 3,
872
+ 4,
873
+ 5,
874
+ 6,
875
+ 7,
876
+ 8,
877
+ 9,
878
+ 10,
879
+ 11,
880
+ ], # it better only put special tokens here, because tokenizer only remove special tokens
881
+ )
882
+ )
883
+
884
+ # ChangGPT default template
885
+ register_conv_template(
886
+ Conversation(
887
+ name='polyglot_changgpt',
888
+ roles=('B', 'A'),
889
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
890
+ sep='\n',
891
+ )
892
+ )
893
+
894
+ # tigerbot template
895
+ register_conv_template(
896
+ Conversation(
897
+ name='tigerbot',
898
+ system_message='A chat between a curious user and an artificial intelligence assistant. '
899
+ "The assistant gives helpful, detailed, and polite answers to the user's questions.",
900
+ roles=('### Instruction', '### Response'),
901
+ sep_style=SeparatorStyle.ROBIN,
902
+ sep='\n\n',
903
+ stop_str='###',
904
+ )
905
+ )
906
+
907
+ # ref: https://huggingface.co/Salesforce/xgen-7b-8k-inst
908
+ register_conv_template(
909
+ Conversation(
910
+ name='xgen',
911
+ system_message="A chat between a curious human and an artificial intelligence assistant. The assistant gives helpful, detailed, and polite answers to the human's questions.\n\n",
912
+ roles=('### Human', '### Assistant'),
913
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
914
+ sep='\n',
915
+ stop_token_ids=[50256],
916
+ )
917
+ )
918
+
919
+ # Internlm-chat template
920
+ register_conv_template(
921
+ Conversation(
922
+ name='internlm-chat',
923
+ system_message="A chat between a curious <|User|> and an <|Bot|>. The <|Bot|> gives helpful, detailed, and polite answers to the <|User|>'s questions.\n\n",
924
+ roles=('<|User|>', '<|Bot|>'),
925
+ sep_style=SeparatorStyle.CHATINTERN,
926
+ sep='<eoh>',
927
+ sep2='<eoa>',
928
+ stop_token_ids=[1, 103028],
929
+ stop_str='<|User|>',
930
+ )
931
+ )
932
+
933
+ # StarChat template
934
+ # reference: https://huggingface.co/spaces/HuggingFaceH4/starchat-playground/blob/main/dialogues.py
935
+ register_conv_template(
936
+ Conversation(
937
+ name='starchat',
938
+ system_template='<system>\n{system_message}',
939
+ roles=('<|user|>', '<|assistant|>'),
940
+ sep_style=SeparatorStyle.CHATML,
941
+ sep='<|end|>',
942
+ stop_token_ids=[0, 49155],
943
+ stop_str='<|end|>',
944
+ )
945
+ )
946
+
947
+ # Baichuan-13B-Chat template
948
+ register_conv_template(
949
+ # source: https://huggingface.co/baichuan-inc/Baichuan-13B-Chat/blob/19ef51ba5bad8935b03acd20ff04a269210983bc/modeling_baichuan.py#L555
950
+ # https://huggingface.co/baichuan-inc/Baichuan-13B-Chat/blob/main/generation_config.json
951
+ # https://github.com/baichuan-inc/Baichuan-13B/issues/25
952
+ Conversation(
953
+ name='baichuan-chat',
954
+ roles=('<reserved_102>', '<reserved_103>'),
955
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
956
+ sep='',
957
+ stop_token_ids=[],
958
+ )
959
+ )
960
+
961
+ # Baichuan2-13B-Chat template
962
+ register_conv_template(
963
+ # source: https://huggingface.co/baichuan-inc/Baichuan2-13B-Chat/blob/c6f8592a60b4ad73c210b28dd2ab3cca51abbf93/modeling_baichuan.py#L773
964
+ # https://huggingface.co/baichuan-inc/Baichuan2-13B-Chat/blob/main/generation_config.json
965
+ # https://github.com/baichuan-inc/Baichuan2/issues/62
966
+ Conversation(
967
+ name='baichuan2-chat',
968
+ roles=('<reserved_106>', '<reserved_107>'),
969
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
970
+ sep='',
971
+ stop_token_ids=[],
972
+ )
973
+ )
974
+
975
+ # Mistral template
976
+ # source: https://docs.mistral.ai/llm/mistral-instruct-v0.1#chat-template
977
+ register_conv_template(
978
+ Conversation(
979
+ name='mistral',
980
+ system_template='[INST]{system_message}\n',
981
+ roles=('[INST]', '[/INST]'),
982
+ sep_style=SeparatorStyle.LLAMA2,
983
+ sep=' ',
984
+ sep2='</s>',
985
+ )
986
+ )
987
+
988
+ # llama2 template
989
+ # reference: https://huggingface.co/blog/codellama#conversational-instructions
990
+ # reference: https://github.com/facebookresearch/llama/blob/1a240688810f8036049e8da36b073f63d2ac552c/llama/generation.py#L212
991
+ register_conv_template(
992
+ Conversation(
993
+ name='llama-2',
994
+ system_template='[INST] <<SYS>>\n{system_message}\n<</SYS>>\n\n',
995
+ roles=('[INST]', '[/INST]'),
996
+ sep_style=SeparatorStyle.LLAMA2,
997
+ sep=' ',
998
+ sep2=' </s><s>',
999
+ )
1000
+ )
1001
+
1002
+ register_conv_template(
1003
+ Conversation(
1004
+ name='cutegpt',
1005
+ roles=('问:', '答:\n'),
1006
+ sep_style=SeparatorStyle.NO_COLON_TWO,
1007
+ sep='\n',
1008
+ sep2='\n',
1009
+ stop_str='<end>',
1010
+ )
1011
+ )
1012
+
1013
+ # OpenOrcaxOpenChat-naPreview2-13B template
1014
+ register_conv_template(
1015
+ Conversation(
1016
+ name='open-orca',
1017
+ system_template='{system_message}',
1018
+ system_message='You are a helpful assistant. Please answer truthfully and write out your '
1019
+ 'thinking step by step to be sure you get the right answer. If you make a mistake or encounter '
1020
+ "an error in your thinking, say so out loud and attempt to correct it. If you don't know or "
1021
+ "aren't sure about something, say so clearly. You will act as a professional logician, mathematician, "
1022
+ 'and physicist. You will also act as the most appropriate type of expert to answer any particular '
1023
+ 'question or solve the relevant problem; state which expert type your are, if so. Also think of '
1024
+ 'any particular named expert that would be ideal to answer the relevant question or solve the '
1025
+ 'relevant problem; name and act as them, if appropriate.',
1026
+ roles=('User', 'Assistant'),
1027
+ sep_style=SeparatorStyle.ADD_COLON_SPACE_SINGLE,
1028
+ sep='<|end_of_turn|>\n',
1029
+ stop_token_ids=[32000, 32001], # "<|end_of_turn|>"
1030
+ stop_str='User',
1031
+ )
1032
+ )
1033
+
1034
+ # Open-Orca/Mistral-7B-OpenOrca template
1035
+ # source: https://huggingface.co/Open-Orca/Mistral-7B-OpenOrca
1036
+ # reference: https://huggingface.co/Open-Orca/Mistral-7B-OpenOrca#prompt-template
1037
+ register_conv_template(
1038
+ Conversation(
1039
+ name='mistral-7b-openorca',
1040
+ system_template='<|im_start|>system\n{system_message}',
1041
+ system_message='You are MistralOrca, a large language model trained by Alignment Lab AI. Write out your reasoning step-by-step to be sure you get the right answers!',
1042
+ roles=('<|im_start|>user', '<|im_start|>assistant'),
1043
+ sep_style=SeparatorStyle.CHATML,
1044
+ sep='<|im_end|>',
1045
+ stop_token_ids=[32000, 32001],
1046
+ )
1047
+ )
1048
+
1049
+ # Qwen-chat default template
1050
+ # source: https://huggingface.co/Qwen/Qwen-7B-Chat/blob/main/qwen_generation_utils.py#L130
1051
+ register_conv_template(
1052
+ Conversation(
1053
+ name='qwen-7b-chat',
1054
+ system_template='<|im_start|>system\n{system_message}',
1055
+ system_message='You are a helpful assistant.',
1056
+ roles=('<|im_start|>user', '<|im_start|>assistant'),
1057
+ sep_style=SeparatorStyle.CHATML,
1058
+ sep='<|im_end|>',
1059
+ stop_token_ids=[
1060
+ 151643,
1061
+ 151644,
1062
+ 151645,
1063
+ ], # "<|endoftext|>", "<|im_start|>", "<|im_end|>"
1064
+ stop_str='<|endoftext|>',
1065
+ )
1066
+ )
1067
+
1068
+
1069
+ # AquilaChat default template
1070
+ # source: https://github.com/FlagAI-Open/FlagAI/blob/master/examples/Aquila/Aquila-chat/cyg_conversation.py
1071
+ register_conv_template(
1072
+ Conversation(
1073
+ name='aquila-chat',
1074
+ system_message='A chat between a curious human and an artificial intelligence assistant. '
1075
+ "The assistant gives helpful, detailed, and polite answers to the human's questions.",
1076
+ roles=('Human', 'Assistant'),
1077
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
1078
+ sep='###',
1079
+ sep2='',
1080
+ stop_str=['###', '</s>', '[UNK]'],
1081
+ )
1082
+ )
1083
+ # AquilaChat2-34B default template
1084
+ # source: https://huggingface.co/BAAI/AquilaChat2-34B/blob/4608b75855334b93329a771aee03869dbf7d88cc/predict.py#L212
1085
+ register_conv_template(
1086
+ Conversation(
1087
+ name='aquila-legacy',
1088
+ system_message='A chat between a curious human and an artificial intelligence assistant. '
1089
+ "The assistant gives helpful, detailed, and polite answers to the human's questions.\n\n",
1090
+ roles=('### Human: ', '### Assistant: '),
1091
+ offset=0,
1092
+ sep_style=SeparatorStyle.NO_COLON_TWO,
1093
+ sep='\n',
1094
+ sep2='</s>',
1095
+ stop_str=['</s>', '[UNK]'],
1096
+ )
1097
+ )
1098
+ # AquilaChat2-7B-16K and AquilaChat2-34B-16K default template
1099
+ # source: https://huggingface.co/BAAI/AquilaChat2-34B/blob/4608b75855334b93329a771aee03869dbf7d88cc/predict.py#L227
1100
+ register_conv_template(
1101
+ Conversation(
1102
+ name='aquila',
1103
+ system_message='A chat between a curious human and an artificial intelligence assistant. '
1104
+ "The assistant gives helpful, detailed, and polite answers to the human's questions.",
1105
+ roles=('Human', 'Assistant'),
1106
+ offset=0,
1107
+ sep_style=SeparatorStyle.ADD_COLON_TWO,
1108
+ sep='###',
1109
+ sep2='</s>',
1110
+ stop_str=['</s>', '[UNK]'],
1111
+ )
1112
+ )
1113
+
1114
+ # AquilaChat2-7B default template
1115
+ # source: https://huggingface.co/BAAI/AquilaChat2-34B/blob/4608b75855334b93329a771aee03869dbf7d88cc/predict.py#L242
1116
+ register_conv_template(
1117
+ Conversation(
1118
+ name='aquila-v1',
1119
+ roles=('<|startofpiece|>', '<|endofpiece|>'),
1120
+ offset=0,
1121
+ sep_style=SeparatorStyle.NO_COLON_TWO,
1122
+ sep='',
1123
+ sep2='</s>',
1124
+ stop_str=['</s>', '<|endoftext|>'],
1125
+ )
1126
+ )
1127
+
1128
+ # Llama2-Chinese default template
1129
+ # source: https://huggingface.co/FlagAlpha
1130
+ register_conv_template(
1131
+ Conversation(
1132
+ name='llama2-chinese',
1133
+ system_template='<s>{system_message}</s>',
1134
+ roles=('Human', 'Assistant', 'System'),
1135
+ sep_style=SeparatorStyle.ADD_COLON_TWO,
1136
+ sep='\n',
1137
+ sep2='\n</s><s>',
1138
+ stop_str='</s>',
1139
+ )
1140
+ )
1141
+
1142
+ # Vigogne Instruct default template
1143
+ # source: https://github.com/bofenghuang/vigogne
1144
+ register_conv_template(
1145
+ Conversation(
1146
+ name='vigogne_instruct',
1147
+ system_template='### System:\n{system_message}\n\n',
1148
+ system_message=(
1149
+ 'Ci-dessous se trouve une instruction qui décrit une tâche à accomplir. Rédigez une réponse qui répond de manière'
1150
+ ' précise à la demande.'
1151
+ ),
1152
+ roles=('### Instruction', '### Response'),
1153
+ sep_style=SeparatorStyle.DOLLY,
1154
+ sep='\n\n',
1155
+ sep2='</s>',
1156
+ )
1157
+ )
1158
+
1159
+ # Vigogne Chat default template
1160
+ register_conv_template(
1161
+ Conversation(
1162
+ name='vigogne_chat_v2',
1163
+ system_template='<|system|>: {system_message}',
1164
+ system_message=(
1165
+ 'Vous êtes Vigogne, un assistant IA créé par Zaion Lab. Vous suivez extrêmement bien les instructions. Aidez'
1166
+ ' autant que vous le pouvez.'
1167
+ ),
1168
+ roles=('<|user|>', '<|assistant|>'),
1169
+ sep_style=SeparatorStyle.ADD_COLON_TWO,
1170
+ sep='\n',
1171
+ sep2='</s>\n',
1172
+ stop_str='<|user|>',
1173
+ )
1174
+ )
1175
+
1176
+ register_conv_template(
1177
+ Conversation(
1178
+ name='vigogne_chat_v3',
1179
+ system_template='[INST] <<SYS>>\n{system_message}\n<</SYS>>\n\n',
1180
+ system_message=(
1181
+ 'Vous êtes Vigogne, un assistant IA créé par Zaion Lab. Vous suivez extrêmement bien les instructions. Aidez'
1182
+ ' autant que vous le pouvez.'
1183
+ ),
1184
+ roles=('[INST]', '[/INST]'),
1185
+ sep_style=SeparatorStyle.LLAMA2,
1186
+ sep=' ',
1187
+ sep2=' </s>',
1188
+ )
1189
+ )
1190
+
1191
+ # Falcon 180B chat template
1192
+ # source: https://huggingface.co/spaces/tiiuae/falcon-180b-demo/blob/d1590ee7fae9b6ce331ba7808e61a29dcce9239f/app.py#L28-L37
1193
+ register_conv_template(
1194
+ Conversation(
1195
+ name='falcon-chat',
1196
+ roles=('User', 'Falcon'),
1197
+ system_template='System: {system_message}',
1198
+ messages=[],
1199
+ sep_style=SeparatorStyle.FALCON_CHAT,
1200
+ sep='\n',
1201
+ sep2='<|endoftext|>',
1202
+ stop_str='\nUser:', # use stop_str to stop generation after stop_token_ids, it will also remove stop_str from the generated text
1203
+ )
1204
+ )
1205
+
1206
+ # Phind template
1207
+ # source: https://huggingface.co/Phind/Phind-CodeLlama-34B-v2
1208
+ register_conv_template(
1209
+ Conversation(
1210
+ name='phind',
1211
+ system_message='### System Prompt\nYou are an intelligent programming assistant.',
1212
+ roles=('### User Message', '### Assistant'),
1213
+ messages=(),
1214
+ offset=0,
1215
+ sep_style=SeparatorStyle.ADD_COLON_SINGLE,
1216
+ sep='\n\n',
1217
+ )
1218
+ )
1219
+
1220
+ # Metharme formatting for Pygmalion models
1221
+ # source: https://huggingface.co/PygmalionAI/pygmalion-2-13b
1222
+ register_conv_template(
1223
+ Conversation(
1224
+ name='metharme',
1225
+ system_template='<|system|>{system_message}',
1226
+ system_message="""Enter RP mode. You shall reply to the user while staying
1227
+ in character. Your responses must be detailed, creative, immersive, and drive the scenario
1228
+ forward.""",
1229
+ roles=('<|user|>', '<|model|>'),
1230
+ sep_style=SeparatorStyle.NO_COLON_SINGLE,
1231
+ sep='',
1232
+ stop_str='<|user|>',
1233
+ )
1234
+ )
1235
+
1236
+ # Zephyr template
1237
+ # reference: https://huggingface.co/spaces/HuggingFaceH4/zephyr-playground/blob/main/dialogues.py
1238
+ register_conv_template(
1239
+ Conversation(
1240
+ name='zephyr',
1241
+ system_template='<|system|>\n{system_message}',
1242
+ roles=('<|user|>', '<|assistant|>'),
1243
+ sep_style=SeparatorStyle.CHATML,
1244
+ sep='</s>',
1245
+ stop_token_ids=[2],
1246
+ stop_str='</s>',
1247
+ )
1248
+ )
1249
+
1250
+ # InternVL-ZH template
1251
+ register_conv_template(
1252
+ Conversation(
1253
+ name='internvl_zh',
1254
+ system_template='',
1255
+ roles=('<human>', '<bot>'),
1256
+ sep_style=SeparatorStyle.INTERNVL_ZH,
1257
+ sep=' ',
1258
+ sep2='</s>',
1259
+ )
1260
+ )
generation_config.json ADDED
@@ -0,0 +1,10 @@
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "do_sample": true,
3
+ "eos_token_id": 2,
4
+ "max_new_tokens": 2048,
5
+ "pad_token_id": 2,
6
+ "temperature": 0.3,
7
+ "top_k": 20,
8
+ "top_p": 0.7,
9
+ "transformers_version": "4.42.3"
10
+ }
modeling_intern_vit.py ADDED
@@ -0,0 +1,434 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # --------------------------------------------------------
2
+ # InternVL
3
+ # Copyright (c) 2023 OpenGVLab
4
+ # Licensed under The MIT License [see LICENSE for details]
5
+ # --------------------------------------------------------
6
+ from typing import Optional, Tuple, Union
7
+
8
+ import torch
9
+ import torch.nn.functional as F
10
+ import torch.utils.checkpoint
11
+ from einops import rearrange
12
+ from timm.models.layers import DropPath
13
+ from torch import nn
14
+ from transformers.activations import ACT2FN
15
+ from transformers.modeling_outputs import (BaseModelOutput,
16
+ BaseModelOutputWithPooling)
17
+ from transformers.modeling_utils import PreTrainedModel
18
+ from transformers.utils import logging
19
+
20
+ from .configuration_intern_vit import InternVisionConfig
21
+
22
+ try:
23
+ try: # v1
24
+ from flash_attn.flash_attn_interface import \
25
+ flash_attn_unpadded_qkvpacked_func
26
+ except: # v2
27
+ from flash_attn.flash_attn_interface import \
28
+ flash_attn_varlen_qkvpacked_func as flash_attn_unpadded_qkvpacked_func
29
+
30
+ from flash_attn.bert_padding import pad_input, unpad_input
31
+
32
+ has_flash_attn = True
33
+ except:
34
+ print('FlashAttention is not installed.')
35
+ has_flash_attn = False
36
+
37
+ logger = logging.get_logger(__name__)
38
+
39
+
40
+ class FlashAttention(nn.Module):
41
+ """Implement the scaled dot product attention with softmax.
42
+ Arguments
43
+ ---------
44
+ softmax_scale: The temperature to use for the softmax attention.
45
+ (default: 1/sqrt(d_keys) where d_keys is computed at
46
+ runtime)
47
+ attention_dropout: The dropout rate to apply to the attention
48
+ (default: 0.0)
49
+ """
50
+
51
+ def __init__(self, softmax_scale=None, attention_dropout=0.0, device=None, dtype=None):
52
+ super().__init__()
53
+ self.softmax_scale = softmax_scale
54
+ self.dropout_p = attention_dropout
55
+
56
+ def forward(self, qkv, key_padding_mask=None, causal=False, cu_seqlens=None,
57
+ max_s=None, need_weights=False):
58
+ """Implements the multihead softmax attention.
59
+ Arguments
60
+ ---------
61
+ qkv: The tensor containing the query, key, and value. (B, S, 3, H, D) if key_padding_mask is None
62
+ if unpadded: (nnz, 3, h, d)
63
+ key_padding_mask: a bool tensor of shape (B, S)
64
+ """
65
+ assert not need_weights
66
+ assert qkv.dtype in [torch.float16, torch.bfloat16]
67
+ assert qkv.is_cuda
68
+
69
+ if cu_seqlens is None:
70
+ batch_size = qkv.shape[0]
71
+ seqlen = qkv.shape[1]
72
+ if key_padding_mask is None:
73
+ qkv = rearrange(qkv, 'b s ... -> (b s) ...')
74
+ max_s = seqlen
75
+ cu_seqlens = torch.arange(0, (batch_size + 1) * seqlen, step=seqlen, dtype=torch.int32,
76
+ device=qkv.device)
77
+ output = flash_attn_unpadded_qkvpacked_func(
78
+ qkv, cu_seqlens, max_s, self.dropout_p if self.training else 0.0,
79
+ softmax_scale=self.softmax_scale, causal=causal
80
+ )
81
+ output = rearrange(output, '(b s) ... -> b s ...', b=batch_size)
82
+ else:
83
+ nheads = qkv.shape[-2]
84
+ x = rearrange(qkv, 'b s three h d -> b s (three h d)')
85
+ x_unpad, indices, cu_seqlens, max_s = unpad_input(x, key_padding_mask)
86
+ x_unpad = rearrange(x_unpad, 'nnz (three h d) -> nnz three h d', three=3, h=nheads)
87
+ output_unpad = flash_attn_unpadded_qkvpacked_func(
88
+ x_unpad, cu_seqlens, max_s, self.dropout_p if self.training else 0.0,
89
+ softmax_scale=self.softmax_scale, causal=causal
90
+ )
91
+ output = rearrange(pad_input(rearrange(output_unpad, 'nnz h d -> nnz (h d)'),
92
+ indices, batch_size, seqlen),
93
+ 'b s (h d) -> b s h d', h=nheads)
94
+ else:
95
+ assert max_s is not None
96
+ output = flash_attn_unpadded_qkvpacked_func(
97
+ qkv, cu_seqlens, max_s, self.dropout_p if self.training else 0.0,
98
+ softmax_scale=self.softmax_scale, causal=causal
99
+ )
100
+
101
+ return output, None
102
+
103
+
104
+ class InternRMSNorm(nn.Module):
105
+ def __init__(self, hidden_size, eps=1e-6):
106
+ super().__init__()
107
+ self.weight = nn.Parameter(torch.ones(hidden_size))
108
+ self.variance_epsilon = eps
109
+
110
+ def forward(self, hidden_states):
111
+ input_dtype = hidden_states.dtype
112
+ hidden_states = hidden_states.to(torch.float32)
113
+ variance = hidden_states.pow(2).mean(-1, keepdim=True)
114
+ hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon)
115
+ return self.weight * hidden_states.to(input_dtype)
116
+
117
+
118
+ try:
119
+ from apex.normalization import FusedRMSNorm
120
+
121
+ InternRMSNorm = FusedRMSNorm # noqa
122
+
123
+ logger.info('Discovered apex.normalization.FusedRMSNorm - will use it instead of InternRMSNorm')
124
+ except ImportError:
125
+ # using the normal InternRMSNorm
126
+ pass
127
+ except Exception:
128
+ logger.warning('discovered apex but it failed to load, falling back to InternRMSNorm')
129
+ pass
130
+
131
+
132
+ NORM2FN = {
133
+ 'rms_norm': InternRMSNorm,
134
+ 'layer_norm': nn.LayerNorm,
135
+ }
136
+
137
+
138
+ class InternVisionEmbeddings(nn.Module):
139
+ def __init__(self, config: InternVisionConfig):
140
+ super().__init__()
141
+ self.config = config
142
+ self.embed_dim = config.hidden_size
143
+ self.image_size = config.image_size
144
+ self.patch_size = config.patch_size
145
+
146
+ self.class_embedding = nn.Parameter(
147
+ torch.randn(1, 1, self.embed_dim),
148
+ )
149
+
150
+ self.patch_embedding = nn.Conv2d(
151
+ in_channels=3, out_channels=self.embed_dim, kernel_size=self.patch_size, stride=self.patch_size
152
+ )
153
+
154
+ self.num_patches = (self.image_size // self.patch_size) ** 2
155
+ self.num_positions = self.num_patches + 1
156
+
157
+ self.position_embedding = nn.Parameter(torch.randn(1, self.num_positions, self.embed_dim))
158
+
159
+ def _get_pos_embed(self, pos_embed, H, W):
160
+ target_dtype = pos_embed.dtype
161
+ pos_embed = pos_embed.float().reshape(
162
+ 1, self.image_size // self.patch_size, self.image_size // self.patch_size, -1).permute(0, 3, 1, 2)
163
+ pos_embed = F.interpolate(pos_embed, size=(H, W), mode='bicubic', align_corners=False). \
164
+ reshape(1, -1, H * W).permute(0, 2, 1).to(target_dtype)
165
+ return pos_embed
166
+
167
+ def forward(self, pixel_values: torch.FloatTensor) -> torch.Tensor:
168
+ target_dtype = self.patch_embedding.weight.dtype
169
+ patch_embeds = self.patch_embedding(pixel_values) # shape = [*, channel, width, height]
170
+ batch_size, _, height, width = patch_embeds.shape
171
+ patch_embeds = patch_embeds.flatten(2).transpose(1, 2)
172
+ class_embeds = self.class_embedding.expand(batch_size, 1, -1).to(target_dtype)
173
+ embeddings = torch.cat([class_embeds, patch_embeds], dim=1)
174
+ position_embedding = torch.cat([
175
+ self.position_embedding[:, :1, :],
176
+ self._get_pos_embed(self.position_embedding[:, 1:, :], height, width)
177
+ ], dim=1)
178
+ embeddings = embeddings + position_embedding.to(target_dtype)
179
+ return embeddings
180
+
181
+
182
+ class InternAttention(nn.Module):
183
+ """Multi-headed attention from 'Attention Is All You Need' paper"""
184
+
185
+ def __init__(self, config: InternVisionConfig):
186
+ super().__init__()
187
+ self.config = config
188
+ self.embed_dim = config.hidden_size
189
+ self.num_heads = config.num_attention_heads
190
+ self.use_flash_attn = config.use_flash_attn and has_flash_attn
191
+ if config.use_flash_attn and not has_flash_attn:
192
+ print('Warning: Flash Attention is not available, use_flash_attn is set to False.')
193
+ self.head_dim = self.embed_dim // self.num_heads
194
+ if self.head_dim * self.num_heads != self.embed_dim:
195
+ raise ValueError(
196
+ f'embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:'
197
+ f' {self.num_heads}).'
198
+ )
199
+
200
+ self.scale = self.head_dim ** -0.5
201
+ self.qkv = nn.Linear(self.embed_dim, 3 * self.embed_dim, bias=config.qkv_bias)
202
+ self.attn_drop = nn.Dropout(config.attention_dropout)
203
+ self.proj_drop = nn.Dropout(config.dropout)
204
+
205
+ self.qk_normalization = config.qk_normalization
206
+
207
+ if self.qk_normalization:
208
+ self.q_norm = InternRMSNorm(self.embed_dim, eps=config.layer_norm_eps)
209
+ self.k_norm = InternRMSNorm(self.embed_dim, eps=config.layer_norm_eps)
210
+
211
+ if self.use_flash_attn:
212
+ self.inner_attn = FlashAttention(attention_dropout=config.attention_dropout)
213
+ self.proj = nn.Linear(self.embed_dim, self.embed_dim)
214
+
215
+ def _naive_attn(self, x):
216
+ B, N, C = x.shape
217
+ qkv = self.qkv(x).reshape(B, N, 3, self.num_heads, C // self.num_heads).permute(2, 0, 3, 1, 4)
218
+ q, k, v = qkv.unbind(0) # make torchscript happy (cannot use tensor as tuple)
219
+
220
+ if self.qk_normalization:
221
+ B_, H_, N_, D_ = q.shape
222
+ q = self.q_norm(q.transpose(1, 2).flatten(-2, -1)).view(B_, N_, H_, D_).transpose(1, 2)
223
+ k = self.k_norm(k.transpose(1, 2).flatten(-2, -1)).view(B_, N_, H_, D_).transpose(1, 2)
224
+
225
+ attn = ((q * self.scale) @ k.transpose(-2, -1))
226
+ attn = attn.softmax(dim=-1)
227
+ attn = self.attn_drop(attn)
228
+
229
+ x = (attn @ v).transpose(1, 2).reshape(B, N, C)
230
+ x = self.proj(x)
231
+ x = self.proj_drop(x)
232
+ return x
233
+
234
+ def _flash_attn(self, x, key_padding_mask=None, need_weights=False):
235
+ qkv = self.qkv(x)
236
+ qkv = rearrange(qkv, 'b s (three h d) -> b s three h d', three=3, h=self.num_heads)
237
+
238
+ if self.qk_normalization:
239
+ q, k, v = qkv.unbind(2)
240
+ q = self.q_norm(q.flatten(-2, -1)).view(q.shape)
241
+ k = self.k_norm(k.flatten(-2, -1)).view(k.shape)
242
+ qkv = torch.stack([q, k, v], dim=2)
243
+
244
+ context, _ = self.inner_attn(
245
+ qkv, key_padding_mask=key_padding_mask, need_weights=need_weights, causal=False
246
+ )
247
+ outs = self.proj(rearrange(context, 'b s h d -> b s (h d)'))
248
+ outs = self.proj_drop(outs)
249
+ return outs
250
+
251
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
252
+ x = self._naive_attn(hidden_states) if not self.use_flash_attn else self._flash_attn(hidden_states)
253
+ return x
254
+
255
+
256
+ class InternMLP(nn.Module):
257
+ def __init__(self, config: InternVisionConfig):
258
+ super().__init__()
259
+ self.config = config
260
+ self.act = ACT2FN[config.hidden_act]
261
+ self.fc1 = nn.Linear(config.hidden_size, config.intermediate_size)
262
+ self.fc2 = nn.Linear(config.intermediate_size, config.hidden_size)
263
+
264
+ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
265
+ hidden_states = self.fc1(hidden_states)
266
+ hidden_states = self.act(hidden_states)
267
+ hidden_states = self.fc2(hidden_states)
268
+ return hidden_states
269
+
270
+
271
+ class InternVisionEncoderLayer(nn.Module):
272
+ def __init__(self, config: InternVisionConfig, drop_path_rate: float):
273
+ super().__init__()
274
+ self.embed_dim = config.hidden_size
275
+ self.intermediate_size = config.intermediate_size
276
+ self.norm_type = config.norm_type
277
+
278
+ self.attn = InternAttention(config)
279
+ self.mlp = InternMLP(config)
280
+ self.norm1 = NORM2FN[self.norm_type](self.embed_dim, eps=config.layer_norm_eps)
281
+ self.norm2 = NORM2FN[self.norm_type](self.embed_dim, eps=config.layer_norm_eps)
282
+
283
+ self.ls1 = nn.Parameter(config.initializer_factor * torch.ones(self.embed_dim))
284
+ self.ls2 = nn.Parameter(config.initializer_factor * torch.ones(self.embed_dim))
285
+ self.drop_path1 = DropPath(drop_path_rate) if drop_path_rate > 0. else nn.Identity()
286
+ self.drop_path2 = DropPath(drop_path_rate) if drop_path_rate > 0. else nn.Identity()
287
+
288
+ def forward(
289
+ self,
290
+ hidden_states: torch.Tensor,
291
+ ) -> Tuple[torch.FloatTensor, Optional[torch.FloatTensor], Optional[Tuple[torch.FloatTensor]]]:
292
+ """
293
+ Args:
294
+ hidden_states (`Tuple[torch.FloatTensor, Optional[torch.FloatTensor]]`): input to the layer of shape `(batch, seq_len, embed_dim)`
295
+ """
296
+ hidden_states = hidden_states + self.drop_path1(self.attn(self.norm1(hidden_states)) * self.ls1)
297
+
298
+ hidden_states = hidden_states + self.drop_path2(self.mlp(self.norm2(hidden_states)) * self.ls2)
299
+
300
+ return hidden_states
301
+
302
+
303
+ class InternVisionEncoder(nn.Module):
304
+ """
305
+ Transformer encoder consisting of `config.num_hidden_layers` self attention layers. Each layer is a
306
+ [`InternEncoderLayer`].
307
+
308
+ Args:
309
+ config (`InternConfig`):
310
+ The corresponding vision configuration for the `InternEncoder`.
311
+ """
312
+
313
+ def __init__(self, config: InternVisionConfig):
314
+ super().__init__()
315
+ self.config = config
316
+ # stochastic depth decay rule
317
+ dpr = [x.item() for x in torch.linspace(0, config.drop_path_rate, config.num_hidden_layers)]
318
+ self.layers = nn.ModuleList([
319
+ InternVisionEncoderLayer(config, dpr[idx]) for idx in range(config.num_hidden_layers)])
320
+ self.gradient_checkpointing = True
321
+
322
+ def forward(
323
+ self,
324
+ inputs_embeds,
325
+ output_hidden_states: Optional[bool] = None,
326
+ return_dict: Optional[bool] = None,
327
+ ) -> Union[Tuple, BaseModelOutput]:
328
+ r"""
329
+ Args:
330
+ inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`):
331
+ Embedded representation of the inputs. Should be float, not int tokens.
332
+ output_hidden_states (`bool`, *optional*):
333
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors
334
+ for more detail.
335
+ return_dict (`bool`, *optional*):
336
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
337
+ """
338
+ output_hidden_states = (
339
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
340
+ )
341
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
342
+
343
+ encoder_states = () if output_hidden_states else None
344
+ hidden_states = inputs_embeds
345
+
346
+ for idx, encoder_layer in enumerate(self.layers):
347
+ if output_hidden_states:
348
+ encoder_states = encoder_states + (hidden_states,)
349
+ if self.gradient_checkpointing and self.training:
350
+ layer_outputs = torch.utils.checkpoint.checkpoint(
351
+ encoder_layer,
352
+ hidden_states)
353
+ else:
354
+ layer_outputs = encoder_layer(
355
+ hidden_states,
356
+ )
357
+ hidden_states = layer_outputs
358
+
359
+ if output_hidden_states:
360
+ encoder_states = encoder_states + (hidden_states,)
361
+
362
+ if not return_dict:
363
+ return tuple(v for v in [hidden_states, encoder_states] if v is not None)
364
+ return BaseModelOutput(
365
+ last_hidden_state=hidden_states, hidden_states=encoder_states
366
+ )
367
+
368
+
369
+ class InternVisionModel(PreTrainedModel):
370
+ main_input_name = 'pixel_values'
371
+ config_class = InternVisionConfig
372
+ _no_split_modules = ['InternVisionEncoderLayer']
373
+
374
+ def __init__(self, config: InternVisionConfig):
375
+ super().__init__(config)
376
+ self.config = config
377
+
378
+ self.embeddings = InternVisionEmbeddings(config)
379
+ self.encoder = InternVisionEncoder(config)
380
+
381
+ def resize_pos_embeddings(self, old_size, new_size, patch_size):
382
+ pos_emb = self.embeddings.position_embedding
383
+ _, num_positions, embed_dim = pos_emb.shape
384
+ cls_emb = pos_emb[:, :1, :]
385
+ pos_emb = pos_emb[:, 1:, :].reshape(1, old_size // patch_size, old_size // patch_size, -1).permute(0, 3, 1, 2)
386
+ pos_emb = F.interpolate(pos_emb.float(), size=new_size // patch_size, mode='bicubic', align_corners=False)
387
+ pos_emb = pos_emb.to(cls_emb.dtype).reshape(1, embed_dim, -1).permute(0, 2, 1)
388
+ pos_emb = torch.cat([cls_emb, pos_emb], dim=1)
389
+ self.embeddings.position_embedding = nn.Parameter(pos_emb)
390
+ self.embeddings.image_size = new_size
391
+ logger.info('Resized position embeddings from {} to {}'.format(old_size, new_size))
392
+
393
+ def get_input_embeddings(self):
394
+ return self.embeddings
395
+
396
+ def forward(
397
+ self,
398
+ pixel_values: Optional[torch.FloatTensor] = None,
399
+ output_hidden_states: Optional[bool] = None,
400
+ return_dict: Optional[bool] = None,
401
+ pixel_embeds: Optional[torch.FloatTensor] = None,
402
+ ) -> Union[Tuple, BaseModelOutputWithPooling]:
403
+ output_hidden_states = (
404
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
405
+ )
406
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
407
+
408
+ if pixel_values is None and pixel_embeds is None:
409
+ raise ValueError('You have to specify pixel_values or pixel_embeds')
410
+
411
+ if pixel_embeds is not None:
412
+ hidden_states = pixel_embeds
413
+ else:
414
+ if len(pixel_values.shape) == 4:
415
+ hidden_states = self.embeddings(pixel_values)
416
+ else:
417
+ raise ValueError(f'wrong pixel_values size: {pixel_values.shape}')
418
+ encoder_outputs = self.encoder(
419
+ inputs_embeds=hidden_states,
420
+ output_hidden_states=output_hidden_states,
421
+ return_dict=return_dict,
422
+ )
423
+ last_hidden_state = encoder_outputs.last_hidden_state
424
+ pooled_output = last_hidden_state[:, 0, :]
425
+
426
+ if not return_dict:
427
+ return (last_hidden_state, pooled_output) + encoder_outputs[1:]
428
+
429
+ return BaseModelOutputWithPooling(
430
+ last_hidden_state=last_hidden_state,
431
+ pooler_output=pooled_output,
432
+ hidden_states=encoder_outputs.hidden_states,
433
+ attentions=encoder_outputs.attentions,
434
+ )
modeling_internlm2.py ADDED
@@ -0,0 +1,1414 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # Copyright (c) The InternLM team and The HuggingFace Inc. team. All rights reserved.
2
+ #
3
+ # This code is based on transformers/src/transformers/models/llama/modeling_llama.py
4
+ #
5
+ # Licensed under the Apache License, Version 2.0 (the "License");
6
+ # you may not use this file except in compliance with the License.
7
+ # You may obtain a copy of the License at
8
+ #
9
+ # http://www.apache.org/licenses/LICENSE-2.0
10
+ #
11
+ # Unless required by applicable law or agreed to in writing, software
12
+ # distributed under the License is distributed on an "AS IS" BASIS,
13
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14
+ # See the License for the specific language governing permissions and
15
+ # limitations under the License.
16
+ """ PyTorch InternLM2 model."""
17
+ import math
18
+ import queue
19
+ import threading
20
+ import warnings
21
+ from typing import List, Optional, Tuple, Union
22
+
23
+ import torch
24
+ import torch.nn.functional as F
25
+ import torch.utils.checkpoint
26
+ from einops import rearrange
27
+ from torch import nn
28
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
29
+ from transformers.activations import ACT2FN
30
+ from transformers.modeling_outputs import (BaseModelOutputWithPast,
31
+ CausalLMOutputWithPast,
32
+ SequenceClassifierOutputWithPast)
33
+ from transformers.modeling_utils import PreTrainedModel
34
+ from transformers.utils import (add_start_docstrings,
35
+ add_start_docstrings_to_model_forward, logging,
36
+ replace_return_docstrings)
37
+
38
+ try:
39
+ from transformers.generation.streamers import BaseStreamer
40
+ except: # noqa # pylint: disable=bare-except
41
+ BaseStreamer = None
42
+
43
+ from .configuration_internlm2 import InternLM2Config
44
+
45
+ logger = logging.get_logger(__name__)
46
+
47
+ _CONFIG_FOR_DOC = 'InternLM2Config'
48
+
49
+ flash_attn_func, flash_attn_varlen_func = None, None
50
+ pad_input, index_first_axis, unpad_input = None, None, None
51
+ try:
52
+ from flash_attn import flash_attn_func as _flash_attn_func
53
+ from flash_attn import flash_attn_varlen_func as _flash_attn_varlen_func
54
+ from flash_attn.bert_padding import index_first_axis as _index_first_axis
55
+ from flash_attn.bert_padding import pad_input as _pad_input
56
+ from flash_attn.bert_padding import unpad_input as _unpad_input
57
+
58
+ flash_attn_func, flash_attn_varlen_func = _flash_attn_func, _flash_attn_varlen_func
59
+ pad_input, index_first_axis, unpad_input = _pad_input, _index_first_axis, _unpad_input
60
+ has_flash_attn = True
61
+ except:
62
+ has_flash_attn = False
63
+
64
+
65
+ def _import_flash_attn():
66
+ global flash_attn_func, flash_attn_varlen_func
67
+ global pad_input, index_first_axis, unpad_input
68
+ try:
69
+ from flash_attn import flash_attn_func as _flash_attn_func
70
+ from flash_attn import \
71
+ flash_attn_varlen_func as _flash_attn_varlen_func
72
+ from flash_attn.bert_padding import \
73
+ index_first_axis as _index_first_axis
74
+ from flash_attn.bert_padding import pad_input as _pad_input
75
+ from flash_attn.bert_padding import unpad_input as _unpad_input
76
+ flash_attn_func, flash_attn_varlen_func = _flash_attn_func, _flash_attn_varlen_func
77
+ pad_input, index_first_axis, unpad_input = _pad_input, _index_first_axis, _unpad_input
78
+ except ImportError:
79
+ raise ImportError('flash_attn is not installed.')
80
+
81
+
82
+ # Copied from transformers.models.llama.modeling_llama._get_unpad_data
83
+ def _get_unpad_data(attention_mask):
84
+ seqlens_in_batch = attention_mask.sum(dim=-1, dtype=torch.int32)
85
+ indices = torch.nonzero(attention_mask.flatten(), as_tuple=False).flatten()
86
+ max_seqlen_in_batch = seqlens_in_batch.max().item()
87
+ cu_seqlens = F.pad(torch.cumsum(seqlens_in_batch, dim=0, dtype=torch.torch.int32), (1, 0))
88
+ return (
89
+ indices,
90
+ cu_seqlens,
91
+ max_seqlen_in_batch,
92
+ )
93
+
94
+
95
+ # Copied from transformers.models.bart.modeling_bart._make_causal_mask
96
+ def _make_causal_mask(
97
+ input_ids_shape: torch.Size, dtype: torch.dtype, device: torch.device, past_key_values_length: int = 0
98
+ ):
99
+ """
100
+ Make causal mask used for bi-directional self-attention.
101
+ """
102
+ bsz, tgt_len = input_ids_shape
103
+ mask = torch.full((tgt_len, tgt_len), torch.tensor(torch.finfo(dtype).min, device=device), device=device)
104
+ mask_cond = torch.arange(mask.size(-1), device=device)
105
+ mask.masked_fill_(mask_cond < (mask_cond + 1).view(mask.size(-1), 1), 0)
106
+ mask = mask.to(dtype)
107
+
108
+ if past_key_values_length > 0:
109
+ mask = torch.cat([torch.zeros(tgt_len, past_key_values_length, dtype=dtype, device=device), mask], dim=-1)
110
+ return mask[None, None, :, :].expand(bsz, 1, tgt_len, tgt_len + past_key_values_length)
111
+
112
+
113
+ # Copied from transformers.models.bart.modeling_bart._expand_mask
114
+ def _expand_mask(mask: torch.Tensor, dtype: torch.dtype, tgt_len: Optional[int] = None):
115
+ """
116
+ Expands attention_mask from `[bsz, seq_len]` to `[bsz, 1, tgt_seq_len, src_seq_len]`.
117
+ """
118
+ bsz, src_len = mask.size()
119
+ tgt_len = tgt_len if tgt_len is not None else src_len
120
+
121
+ expanded_mask = mask[:, None, None, :].expand(bsz, 1, tgt_len, src_len).to(dtype)
122
+
123
+ inverted_mask = 1.0 - expanded_mask
124
+
125
+ return inverted_mask.masked_fill(inverted_mask.to(torch.bool), torch.finfo(dtype).min)
126
+
127
+
128
+ # Copied from transformers.models.llama.modeling_llama.LlamaRMSNorm with Llama->InternLM2
129
+ class InternLM2RMSNorm(nn.Module):
130
+ def __init__(self, hidden_size, eps=1e-6):
131
+ """
132
+ InternLM2RMSNorm is equivalent to T5LayerNorm
133
+ """
134
+ super().__init__()
135
+ self.weight = nn.Parameter(torch.ones(hidden_size))
136
+ self.variance_epsilon = eps
137
+
138
+ def forward(self, hidden_states):
139
+ input_dtype = hidden_states.dtype
140
+ hidden_states = hidden_states.to(torch.float32)
141
+ variance = hidden_states.pow(2).mean(-1, keepdim=True)
142
+ hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon)
143
+ return self.weight * hidden_states.to(input_dtype)
144
+
145
+
146
+ # Copied from transformers.model.llama.modeling_llama.LlamaRotaryEmbedding with Llama->InternLM2
147
+ class InternLM2RotaryEmbedding(nn.Module):
148
+ def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
149
+ super().__init__()
150
+
151
+ self.dim = dim
152
+ self.max_position_embeddings = max_position_embeddings
153
+ self.base = base
154
+ inv_freq = 1.0 / (self.base ** (torch.arange(0, self.dim, 2).float().to(device) / self.dim))
155
+ self.register_buffer('inv_freq', inv_freq, persistent=False)
156
+
157
+ # Build here to make `torch.jit.trace` work.
158
+ self._set_cos_sin_cache(
159
+ seq_len=max_position_embeddings, device=self.inv_freq.device, dtype=torch.get_default_dtype()
160
+ )
161
+
162
+ def _set_cos_sin_cache(self, seq_len, device, dtype):
163
+ self.max_seq_len_cached = seq_len
164
+ t = torch.arange(self.max_seq_len_cached, device=device).to(dtype=self.inv_freq.dtype)
165
+
166
+ freqs = torch.einsum('i,j->ij', t, self.inv_freq)
167
+ # Different from paper, but it uses a different permutation in order to obtain the same calculation
168
+ emb = torch.cat((freqs, freqs), dim=-1)
169
+ self.register_buffer('cos_cached', emb.cos().to(dtype), persistent=False)
170
+ self.register_buffer('sin_cached', emb.sin().to(dtype), persistent=False)
171
+
172
+ def forward(self, x, seq_len=None):
173
+ # x: [bs, num_attention_heads, seq_len, head_size]
174
+ if seq_len > self.max_seq_len_cached:
175
+ self._set_cos_sin_cache(seq_len=seq_len, device=x.device, dtype=torch.float32)
176
+
177
+ return (
178
+ self.cos_cached[:seq_len].to(dtype=x.dtype),
179
+ self.sin_cached[:seq_len].to(dtype=x.dtype),
180
+ )
181
+
182
+
183
+ # Copied from transformers.model.llama.modeling_llama.LlamaLinearScalingRotaryEmbedding with Llama->InternLM2
184
+ class InternLM2LinearScalingRotaryEmbedding(InternLM2RotaryEmbedding):
185
+ """InternLM2RotaryEmbedding extended with linear scaling. Credits to the Reddit user /u/kaiokendev"""
186
+
187
+ def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None, scaling_factor=1.0):
188
+ self.scaling_factor = scaling_factor
189
+ super().__init__(dim, max_position_embeddings, base, device)
190
+
191
+ def _set_cos_sin_cache(self, seq_len, device, dtype):
192
+ self.max_seq_len_cached = seq_len
193
+ t = torch.arange(self.max_seq_len_cached, device=device).to(dtype=self.inv_freq.dtype)
194
+ t = t / self.scaling_factor
195
+
196
+ freqs = torch.einsum('i,j->ij', t, self.inv_freq)
197
+ # Different from paper, but it uses a different permutation in order to obtain the same calculation
198
+ emb = torch.cat((freqs, freqs), dim=-1)
199
+ self.register_buffer('cos_cached', emb.cos().to(dtype), persistent=False)
200
+ self.register_buffer('sin_cached', emb.sin().to(dtype), persistent=False)
201
+
202
+
203
+ # Copied from transformers.model.llama.modeling_llama.LlamaDynamicNTKScalingRotaryEmbedding with Llama->InternLM2
204
+ class InternLM2DynamicNTKScalingRotaryEmbedding(InternLM2RotaryEmbedding):
205
+ """InternLM2RotaryEmbedding extended with Dynamic NTK scaling.
206
+ Credits to the Reddit users /u/bloc97 and /u/emozilla.
207
+ """
208
+
209
+ def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None, scaling_factor=1.0):
210
+ self.scaling_factor = scaling_factor
211
+ super().__init__(dim, max_position_embeddings, base, device)
212
+
213
+ def _set_cos_sin_cache(self, seq_len, device, dtype):
214
+ self.max_seq_len_cached = seq_len
215
+
216
+ if seq_len > self.max_position_embeddings:
217
+ base = self.base * (
218
+ (self.scaling_factor * seq_len / self.max_position_embeddings) - (self.scaling_factor - 1)
219
+ ) ** (self.dim / (self.dim - 2))
220
+ inv_freq = 1.0 / (base ** (torch.arange(0, self.dim, 2).float().to(device) / self.dim))
221
+ self.register_buffer('inv_freq', inv_freq, persistent=False)
222
+
223
+ t = torch.arange(self.max_seq_len_cached, device=device).to(dtype=self.inv_freq.dtype)
224
+
225
+ freqs = torch.einsum('i,j->ij', t, self.inv_freq)
226
+ # Different from paper, but it uses a different permutation in order to obtain the same calculation
227
+ emb = torch.cat((freqs, freqs), dim=-1)
228
+ self.register_buffer('cos_cached', emb.cos().to(dtype), persistent=False)
229
+ self.register_buffer('sin_cached', emb.sin().to(dtype), persistent=False)
230
+
231
+
232
+ # Copied from transformers.model.llama.modeling_llama.rotate_half
233
+ def rotate_half(x):
234
+ """Rotates half the hidden dims of the input."""
235
+ x1 = x[..., : x.shape[-1] // 2]
236
+ x2 = x[..., x.shape[-1] // 2 :]
237
+ return torch.cat((-x2, x1), dim=-1)
238
+
239
+
240
+ # Copied from transformers.model.llama.modeling_llama.apply_rotary_pos_emb
241
+ def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
242
+ """Applies Rotary Position Embedding to the query and key tensors."""
243
+ cos = cos[position_ids].unsqueeze(unsqueeze_dim)
244
+ sin = sin[position_ids].unsqueeze(unsqueeze_dim)
245
+ q_embed = (q * cos) + (rotate_half(q) * sin)
246
+ k_embed = (k * cos) + (rotate_half(k) * sin)
247
+ return q_embed, k_embed
248
+
249
+
250
+ class InternLM2MLP(nn.Module):
251
+ def __init__(self, config):
252
+ super().__init__()
253
+ self.config = config
254
+ self.hidden_size = config.hidden_size
255
+ self.intermediate_size = config.intermediate_size
256
+ self.w1 = nn.Linear(self.hidden_size, self.intermediate_size, bias=False)
257
+ self.w3 = nn.Linear(self.hidden_size, self.intermediate_size, bias=False)
258
+ self.w2 = nn.Linear(self.intermediate_size, self.hidden_size, bias=False)
259
+ self.act_fn = ACT2FN[config.hidden_act]
260
+
261
+ def forward(self, x):
262
+ down_proj = self.w2(self.act_fn(self.w1(x)) * self.w3(x))
263
+
264
+ return down_proj
265
+
266
+
267
+ # Copied from transformers.model.llama.modeling_llama.repeat_kv
268
+ def repeat_kv(hidden_states: torch.Tensor, n_rep: int) -> torch.Tensor:
269
+ """
270
+ This is the equivalent of torch.repeat_interleave(x, dim=1, repeats=n_rep). The hidden states go from (batch,
271
+ num_key_value_heads, seqlen, head_dim) to (batch, num_attention_heads, seqlen, head_dim)
272
+ """
273
+ batch, num_key_value_heads, slen, head_dim = hidden_states.shape
274
+ if n_rep == 1:
275
+ return hidden_states
276
+ hidden_states = hidden_states[:, :, None, :, :].expand(batch, num_key_value_heads, n_rep, slen, head_dim)
277
+ return hidden_states.reshape(batch, num_key_value_heads * n_rep, slen, head_dim)
278
+
279
+
280
+ # Modified from transformers.model.llama.modeling_llama.LlamaAttention
281
+ class InternLM2Attention(nn.Module):
282
+ """Multi-headed attention from 'Attention Is All You Need' paper"""
283
+
284
+ def __init__(self, config: InternLM2Config):
285
+ super().__init__()
286
+ self.config = config
287
+ self.hidden_size = config.hidden_size
288
+ self.num_heads = config.num_attention_heads
289
+ self.head_dim = self.hidden_size // self.num_heads
290
+ self.num_key_value_heads = config.num_key_value_heads
291
+ self.num_key_value_groups = self.num_heads // self.num_key_value_heads
292
+ self.max_position_embeddings = config.max_position_embeddings
293
+ self.is_causal = True
294
+
295
+ if (self.head_dim * self.num_heads) != self.hidden_size:
296
+ raise ValueError(
297
+ f'hidden_size must be divisible by num_heads (got `hidden_size`: {self.hidden_size}'
298
+ f' and `num_heads`: {self.num_heads}).'
299
+ )
300
+
301
+ self.wqkv = nn.Linear(
302
+ self.hidden_size,
303
+ (self.num_heads + 2 * self.num_key_value_heads) * self.head_dim,
304
+ bias=config.bias,
305
+ )
306
+
307
+ self.wo = nn.Linear(self.num_heads * self.head_dim, self.hidden_size, bias=config.bias)
308
+ self._init_rope()
309
+
310
+ def _init_rope(self):
311
+ if self.config.rope_scaling is None:
312
+ self.rotary_emb = InternLM2RotaryEmbedding(
313
+ self.head_dim,
314
+ max_position_embeddings=self.max_position_embeddings,
315
+ base=self.config.rope_theta,
316
+ )
317
+ else:
318
+ scaling_type = self.config.rope_scaling['type']
319
+ scaling_factor = self.config.rope_scaling['factor']
320
+ if scaling_type == 'dynamic':
321
+ self.rotary_emb = InternLM2DynamicNTKScalingRotaryEmbedding(
322
+ self.head_dim,
323
+ max_position_embeddings=self.max_position_embeddings,
324
+ base=self.config.rope_theta,
325
+ scaling_factor=scaling_factor,
326
+ )
327
+ elif scaling_type == 'linear':
328
+ self.rotary_emb = InternLM2LinearScalingRotaryEmbedding(
329
+ self.head_dim,
330
+ max_position_embeddings=self.max_position_embeddings,
331
+ base=self.config.rope_theta,
332
+ scaling_factor=scaling_factor,
333
+ )
334
+ else:
335
+ raise ValueError("Currently we only support rotary embedding's type being 'dynamic' or 'linear'.")
336
+ return self.rotary_emb
337
+
338
+ def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int):
339
+ return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous()
340
+
341
+ def forward(
342
+ self,
343
+ hidden_states: torch.Tensor,
344
+ attention_mask: Optional[torch.Tensor] = None,
345
+ position_ids: Optional[torch.LongTensor] = None,
346
+ past_key_value: Optional[Tuple[torch.Tensor]] = None,
347
+ output_attentions: bool = False,
348
+ use_cache: bool = False,
349
+ **kwargs,
350
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
351
+ if 'padding_mask' in kwargs:
352
+ warnings.warn(
353
+ 'Passing `padding_mask` is deprecated and will be removed in v4.37. '
354
+ 'Please make sure use `attention_mask` instead.`'
355
+ )
356
+
357
+ bsz, q_len, _ = hidden_states.size()
358
+
359
+ qkv_states = self.wqkv(hidden_states)
360
+
361
+ qkv_states = rearrange(
362
+ qkv_states,
363
+ 'b q (h gs d) -> b q h gs d',
364
+ gs=2 + self.num_key_value_groups,
365
+ d=self.head_dim,
366
+ )
367
+
368
+ query_states = qkv_states[..., : self.num_key_value_groups, :]
369
+ query_states = rearrange(query_states, 'b q h gs d -> b q (h gs) d')
370
+ key_states = qkv_states[..., -2, :]
371
+ value_states = qkv_states[..., -1, :]
372
+
373
+ query_states = query_states.transpose(1, 2)
374
+ key_states = key_states.transpose(1, 2)
375
+ value_states = value_states.transpose(1, 2)
376
+
377
+ kv_seq_len = key_states.shape[-2]
378
+ if past_key_value is not None:
379
+ kv_seq_len += past_key_value[0].shape[-2]
380
+ cos, sin = self.rotary_emb(value_states, seq_len=kv_seq_len)
381
+ query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
382
+
383
+ if past_key_value is not None:
384
+ # reuse k, v, self_attention
385
+ key_states = torch.cat([past_key_value[0], key_states], dim=2)
386
+ value_states = torch.cat([past_key_value[1], value_states], dim=2)
387
+
388
+ past_key_value = (key_states, value_states) if use_cache else None
389
+
390
+ key_states = repeat_kv(key_states, self.num_key_value_groups)
391
+ value_states = repeat_kv(value_states, self.num_key_value_groups)
392
+
393
+ attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) / math.sqrt(self.head_dim)
394
+
395
+ if attn_weights.size() != (bsz, self.num_heads, q_len, kv_seq_len):
396
+ raise ValueError(
397
+ f'Attention weights should be of size {(bsz, self.num_heads, q_len, kv_seq_len)}, but is'
398
+ f' {attn_weights.size()}'
399
+ )
400
+
401
+ if attention_mask is not None:
402
+ if attention_mask.size() != (bsz, 1, q_len, kv_seq_len):
403
+ raise ValueError(
404
+ f'Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}'
405
+ )
406
+ attn_weights = attn_weights + attention_mask
407
+
408
+ # upcast attention to fp32
409
+ attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype)
410
+ attn_output = torch.matmul(attn_weights, value_states)
411
+
412
+ if attn_output.size() != (bsz, self.num_heads, q_len, self.head_dim):
413
+ raise ValueError(
414
+ f'`attn_output` should be of size {(bsz, self.num_heads, q_len, self.head_dim)}, but is'
415
+ f' {attn_output.size()}'
416
+ )
417
+
418
+ attn_output = attn_output.transpose(1, 2).contiguous()
419
+ attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
420
+
421
+ attn_output = self.wo(attn_output)
422
+
423
+ if not output_attentions:
424
+ attn_weights = None
425
+
426
+ return attn_output, attn_weights, past_key_value
427
+
428
+
429
+ # Modified from transformers.model.llama.modeling_llama.InternLM2FlashAttention2
430
+ class InternLM2FlashAttention2(InternLM2Attention):
431
+ """
432
+ InternLM2 flash attention module. This module inherits from `InternLM2Attention` as the weights of the module stays
433
+ untouched. The only required change would be on the forward pass where it needs to correctly call the public API of
434
+ flash attention and deal with padding tokens in case the input contains any of them.
435
+ """
436
+
437
+ def forward(
438
+ self,
439
+ hidden_states: torch.Tensor,
440
+ attention_mask: Optional[torch.LongTensor] = None,
441
+ position_ids: Optional[torch.LongTensor] = None,
442
+ past_key_value: Optional[Tuple[torch.Tensor]] = None,
443
+ output_attentions: bool = False,
444
+ use_cache: bool = False,
445
+ **kwargs,
446
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
447
+ # InternLM2FlashAttention2 attention does not support output_attentions
448
+ if 'padding_mask' in kwargs:
449
+ warnings.warn(
450
+ 'Passing `padding_mask` is deprecated and will be removed in v4.37. '
451
+ 'Please make sure use `attention_mask` instead.`'
452
+ )
453
+
454
+ # overwrite attention_mask with padding_mask
455
+ attention_mask = kwargs.pop('padding_mask')
456
+
457
+ output_attentions = False
458
+
459
+ bsz, q_len, _ = hidden_states.size()
460
+
461
+ qkv_states = self.wqkv(hidden_states)
462
+
463
+ qkv_states = rearrange(
464
+ qkv_states,
465
+ 'b q (h gs d) -> b q h gs d',
466
+ gs=2 + self.num_key_value_groups,
467
+ d=self.head_dim,
468
+ )
469
+
470
+ query_states = qkv_states[..., : self.num_key_value_groups, :]
471
+ query_states = rearrange(query_states, 'b q h gs d -> b q (h gs) d')
472
+ key_states = qkv_states[..., -2, :]
473
+ value_states = qkv_states[..., -1, :]
474
+
475
+ query_states = query_states.transpose(1, 2)
476
+ key_states = key_states.transpose(1, 2)
477
+ value_states = value_states.transpose(1, 2)
478
+
479
+ kv_seq_len = key_states.shape[-2]
480
+ if past_key_value is not None:
481
+ kv_seq_len += past_key_value[0].shape[-2]
482
+
483
+ cos, sin = self.rotary_emb(value_states, seq_len=kv_seq_len)
484
+
485
+ query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
486
+
487
+ if past_key_value is not None:
488
+ # reuse k, v, self_attention
489
+ key_states = torch.cat([past_key_value[0], key_states], dim=2)
490
+ value_states = torch.cat([past_key_value[1], value_states], dim=2)
491
+
492
+ past_key_value = (key_states, value_states) if use_cache else None
493
+
494
+ query_states = query_states.transpose(1, 2)
495
+ key_states = key_states.transpose(1, 2)
496
+ value_states = value_states.transpose(1, 2)
497
+
498
+ attn_output = self._flash_attention_forward(
499
+ query_states, key_states, value_states, attention_mask, q_len
500
+ )
501
+ attn_output = attn_output.reshape(bsz, q_len, self.hidden_size).contiguous()
502
+ attn_output = self.wo(attn_output)
503
+
504
+ if not output_attentions:
505
+ attn_weights = None
506
+
507
+ return attn_output, attn_weights, past_key_value
508
+
509
+ def _flash_attention_forward(
510
+ self, query_states, key_states, value_states, attention_mask, query_length, dropout=0.0, softmax_scale=None
511
+ ):
512
+ """
513
+ Calls the forward method of Flash Attention - if the input hidden states contain at least one padding token
514
+ first unpad the input, then computes the attention scores and pad the final attention scores.
515
+
516
+ Args:
517
+ query_states (`torch.Tensor`):
518
+ Input query states to be passed to Flash Attention API
519
+ key_states (`torch.Tensor`):
520
+ Input key states to be passed to Flash Attention API
521
+ value_states (`torch.Tensor`):
522
+ Input value states to be passed to Flash Attention API
523
+ attention_mask (`torch.Tensor`):
524
+ The padding mask - corresponds to a tensor of size `(batch_size, seq_len)` where 0 stands for the
525
+ position of padding tokens and 1 for the position of non-padding tokens.
526
+ dropout (`int`, *optional*):
527
+ Attention dropout
528
+ softmax_scale (`float`, *optional*):
529
+ The scaling of QK^T before applying softmax. Default to 1 / sqrt(head_dim)
530
+ """
531
+ # Contains at least one padding token in the sequence
532
+ causal = self.is_causal and query_length != 1
533
+ if attention_mask is not None:
534
+ batch_size = query_states.shape[0]
535
+ query_states, key_states, value_states, indices_q, cu_seq_lens, max_seq_lens = self._unpad_input(
536
+ query_states, key_states, value_states, attention_mask, query_length
537
+ )
538
+
539
+ cu_seqlens_q, cu_seqlens_k = cu_seq_lens
540
+ max_seqlen_in_batch_q, max_seqlen_in_batch_k = max_seq_lens
541
+
542
+ attn_output_unpad = flash_attn_varlen_func(
543
+ query_states,
544
+ key_states,
545
+ value_states,
546
+ cu_seqlens_q=cu_seqlens_q,
547
+ cu_seqlens_k=cu_seqlens_k,
548
+ max_seqlen_q=max_seqlen_in_batch_q,
549
+ max_seqlen_k=max_seqlen_in_batch_k,
550
+ dropout_p=dropout,
551
+ softmax_scale=softmax_scale,
552
+ causal=causal,
553
+ )
554
+
555
+ attn_output = pad_input(attn_output_unpad, indices_q, batch_size, query_length)
556
+ else:
557
+ attn_output = flash_attn_func(
558
+ query_states, key_states, value_states, dropout, softmax_scale=softmax_scale, causal=causal
559
+ )
560
+
561
+ return attn_output
562
+
563
+ def _unpad_input(self, query_layer, key_layer, value_layer, attention_mask, query_length):
564
+ indices_k, cu_seqlens_k, max_seqlen_in_batch_k = _get_unpad_data(attention_mask)
565
+ batch_size, kv_seq_len, num_key_value_heads, head_dim = key_layer.shape
566
+
567
+ key_layer = index_first_axis(
568
+ key_layer.reshape(batch_size * kv_seq_len, num_key_value_heads, head_dim), indices_k
569
+ )
570
+ value_layer = index_first_axis(
571
+ value_layer.reshape(batch_size * kv_seq_len, num_key_value_heads, head_dim), indices_k
572
+ )
573
+
574
+ if query_length == kv_seq_len:
575
+ query_layer = index_first_axis(
576
+ query_layer.reshape(batch_size * kv_seq_len, self.num_heads, head_dim), indices_k
577
+ )
578
+ cu_seqlens_q = cu_seqlens_k
579
+ max_seqlen_in_batch_q = max_seqlen_in_batch_k
580
+ indices_q = indices_k
581
+ elif query_length == 1:
582
+ max_seqlen_in_batch_q = 1
583
+ cu_seqlens_q = torch.arange(
584
+ batch_size + 1, dtype=torch.int32, device=query_layer.device
585
+ ) # There is a memcpy here, that is very bad.
586
+ indices_q = cu_seqlens_q[:-1]
587
+ query_layer = query_layer.squeeze(1)
588
+ else:
589
+ # The -q_len: slice assumes left padding.
590
+ attention_mask = attention_mask[:, -query_length:]
591
+ query_layer, indices_q, cu_seqlens_q, max_seqlen_in_batch_q = unpad_input(query_layer, attention_mask)
592
+
593
+ return (
594
+ query_layer,
595
+ key_layer,
596
+ value_layer,
597
+ indices_q.to(torch.int64),
598
+ (cu_seqlens_q, cu_seqlens_k),
599
+ (max_seqlen_in_batch_q, max_seqlen_in_batch_k),
600
+ )
601
+
602
+
603
+ INTERNLM2_ATTENTION_CLASSES = {
604
+ 'eager': InternLM2Attention,
605
+ 'flash_attention_2': InternLM2FlashAttention2,
606
+ }
607
+
608
+
609
+ # Modified from transformers.model.llama.modeling_llama.LlamaDecoderLayer
610
+ class InternLM2DecoderLayer(nn.Module):
611
+ def __init__(self, config: InternLM2Config):
612
+ super().__init__()
613
+ self.hidden_size = config.hidden_size
614
+
615
+ self.attention = INTERNLM2_ATTENTION_CLASSES[config.attn_implementation](config=config)
616
+
617
+ self.feed_forward = InternLM2MLP(config)
618
+ self.attention_norm = InternLM2RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
619
+ self.ffn_norm = InternLM2RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
620
+
621
+ def forward(
622
+ self,
623
+ hidden_states: torch.Tensor,
624
+ attention_mask: Optional[torch.Tensor] = None,
625
+ position_ids: Optional[torch.LongTensor] = None,
626
+ past_key_value: Optional[Tuple[torch.Tensor]] = None,
627
+ output_attentions: Optional[bool] = False,
628
+ use_cache: Optional[bool] = False,
629
+ **kwargs,
630
+ ) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]:
631
+ """
632
+ Args:
633
+ hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)`
634
+ attention_mask (`torch.FloatTensor`, *optional*):
635
+ attention mask of size `(batch_size, sequence_length)` if flash attention is used or `(batch_size, 1,
636
+ query_sequence_length, key_sequence_length)` if default attention is used.
637
+ output_attentions (`bool`, *optional*):
638
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
639
+ returned tensors for more detail.
640
+ use_cache (`bool`, *optional*):
641
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
642
+ (see `past_key_values`).
643
+ past_key_value (`Tuple(torch.FloatTensor)`, *optional*): cached past key and value projection states
644
+ """
645
+ if 'padding_mask' in kwargs:
646
+ warnings.warn(
647
+ 'Passing `padding_mask` is deprecated and will be removed in v4.37. '
648
+ 'Please make sure use `attention_mask` instead.`'
649
+ )
650
+
651
+ residual = hidden_states
652
+
653
+ hidden_states = self.attention_norm(hidden_states)
654
+
655
+ # Self Attention
656
+ hidden_states, self_attn_weights, present_key_value = self.attention(
657
+ hidden_states=hidden_states,
658
+ attention_mask=attention_mask,
659
+ position_ids=position_ids,
660
+ past_key_value=past_key_value,
661
+ output_attentions=output_attentions,
662
+ use_cache=use_cache,
663
+ **kwargs,
664
+ )
665
+ hidden_states = residual + hidden_states
666
+
667
+ # Fully Connected
668
+ residual = hidden_states
669
+ hidden_states = self.ffn_norm(hidden_states)
670
+ hidden_states = self.feed_forward(hidden_states)
671
+ hidden_states = residual + hidden_states
672
+
673
+ outputs = (hidden_states,)
674
+
675
+ if output_attentions:
676
+ outputs += (self_attn_weights,)
677
+
678
+ if use_cache:
679
+ outputs += (present_key_value,)
680
+
681
+ return outputs
682
+
683
+
684
+ InternLM2_START_DOCSTRING = r"""
685
+ This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
686
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
687
+ etc.)
688
+
689
+ This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
690
+ Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
691
+ and behavior.
692
+
693
+ Parameters:
694
+ config ([`InternLM2Config`]):
695
+ Model configuration class with all the parameters of the model. Initializing with a config file does not
696
+ load the weights associated with the model, only the configuration. Check out the
697
+ [`~PreTrainedModel.from_pretrained`] method to load the model weights.
698
+ """
699
+
700
+
701
+ # Copied from transformers.models.llama.modeling_llama.LlamaPreTrainedModel with Llama->InternLM2
702
+ @add_start_docstrings(
703
+ 'The bare InternLM2 Model outputting raw hidden-states without any specific head on top.',
704
+ InternLM2_START_DOCSTRING,
705
+ )
706
+ class InternLM2PreTrainedModel(PreTrainedModel):
707
+ config_class = InternLM2Config
708
+ base_model_prefix = 'model'
709
+ supports_gradient_checkpointing = True
710
+ _no_split_modules = ['InternLM2DecoderLayer']
711
+ _skip_keys_device_placement = 'past_key_values'
712
+
713
+ def _init_weights(self, module):
714
+ std = self.config.initializer_range
715
+ if isinstance(module, nn.Linear):
716
+ module.weight.data.normal_(mean=0.0, std=std)
717
+ if module.bias is not None:
718
+ module.bias.data.zero_()
719
+ elif isinstance(module, nn.Embedding):
720
+ module.weight.data.normal_(mean=0.0, std=std)
721
+ if module.padding_idx is not None:
722
+ module.weight.data[module.padding_idx].zero_()
723
+
724
+
725
+ InternLM2_INPUTS_DOCSTRING = r"""
726
+ Args:
727
+ input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
728
+ Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide
729
+ it.
730
+
731
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
732
+ [`PreTrainedTokenizer.__call__`] for details.
733
+
734
+ [What are input IDs?](../glossary#input-ids)
735
+ attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
736
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
737
+
738
+ - 1 for tokens that are **not masked**,
739
+ - 0 for tokens that are **masked**.
740
+
741
+ [What are attention masks?](../glossary#attention-mask)
742
+
743
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
744
+ [`PreTrainedTokenizer.__call__`] for details.
745
+
746
+ If `past_key_values` is used, optionally only the last `input_ids` have to be input (see
747
+ `past_key_values`).
748
+
749
+ If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`]
750
+ and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more
751
+ information on the default strategy.
752
+
753
+ - 1 indicates the head is **not masked**,
754
+ - 0 indicates the head is **masked**.
755
+ position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
756
+ Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
757
+ config.n_positions - 1]`.
758
+
759
+ [What are position IDs?](../glossary#position-ids)
760
+ past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or
761
+ when `config.use_cache=True`):
762
+ Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape
763
+ `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape
764
+ `(batch_size, num_heads, decoder_sequence_length, embed_size_per_head)`.
765
+
766
+ Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
767
+ blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
768
+
769
+ If `past_key_values` are used, the user can optionally input only the last `input_ids` (those that don't
770
+ have their past key value states given to this model) of shape `(batch_size, 1)` instead of all `input_ids`
771
+ of shape `(batch_size, sequence_length)`.
772
+ inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
773
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
774
+ is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
775
+ model's internal embedding lookup matrix.
776
+ use_cache (`bool`, *optional*):
777
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
778
+ `past_key_values`).
779
+ output_attentions (`bool`, *optional*):
780
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
781
+ tensors for more detail.
782
+ output_hidden_states (`bool`, *optional*):
783
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
784
+ more detail.
785
+ return_dict (`bool`, *optional*):
786
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
787
+ """
788
+
789
+
790
+ # Modified from transformers.model.llama.modeling_llama.LlamaModel
791
+ @add_start_docstrings(
792
+ 'The bare InternLM2 Model outputting raw hidden-states without any specific head on top.',
793
+ InternLM2_START_DOCSTRING,
794
+ )
795
+ class InternLM2Model(InternLM2PreTrainedModel):
796
+ """
797
+ Transformer decoder consisting of *config.num_hidden_layers* layers. Each layer is a [`InternLM2DecoderLayer`]
798
+
799
+ Args:
800
+ config: InternLM2Config
801
+ """
802
+
803
+ _auto_class = 'AutoModel'
804
+
805
+ def __init__(self, config: InternLM2Config):
806
+ super().__init__(config)
807
+ self.padding_idx = config.pad_token_id
808
+ self.vocab_size = config.vocab_size
809
+ self.config = config
810
+ if not has_flash_attn:
811
+ self.config.attn_implementation = 'eager'
812
+ print('Warning: Flash attention is not available, using eager attention instead.')
813
+
814
+ self.tok_embeddings = nn.Embedding(config.vocab_size, config.hidden_size, self.padding_idx)
815
+
816
+ self.layers = nn.ModuleList([InternLM2DecoderLayer(config) for _ in range(config.num_hidden_layers)])
817
+ self.norm = InternLM2RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
818
+
819
+ self.gradient_checkpointing = False
820
+ # Initialize weights and apply final processing
821
+ self.post_init()
822
+
823
+ def get_input_embeddings(self):
824
+ return self.tok_embeddings
825
+
826
+ def set_input_embeddings(self, value):
827
+ self.tok_embeddings = value
828
+
829
+ def _prepare_decoder_attention_mask(self, attention_mask, input_shape, inputs_embeds, past_key_values_length):
830
+ # create causal mask
831
+ # [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
832
+ combined_attention_mask = None
833
+ if input_shape[-1] > 1:
834
+ combined_attention_mask = _make_causal_mask(
835
+ input_shape,
836
+ inputs_embeds.dtype,
837
+ device=inputs_embeds.device,
838
+ past_key_values_length=past_key_values_length,
839
+ )
840
+
841
+ if attention_mask is not None:
842
+ # [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
843
+ expanded_attn_mask = _expand_mask(attention_mask, inputs_embeds.dtype, tgt_len=input_shape[-1]).to(
844
+ inputs_embeds.device
845
+ )
846
+ combined_attention_mask = (
847
+ expanded_attn_mask if combined_attention_mask is None else expanded_attn_mask + combined_attention_mask
848
+ )
849
+
850
+ return combined_attention_mask
851
+
852
+ @add_start_docstrings_to_model_forward(InternLM2_INPUTS_DOCSTRING)
853
+ def forward(
854
+ self,
855
+ input_ids: torch.LongTensor = None,
856
+ attention_mask: Optional[torch.Tensor] = None,
857
+ position_ids: Optional[torch.LongTensor] = None,
858
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
859
+ inputs_embeds: Optional[torch.FloatTensor] = None,
860
+ use_cache: Optional[bool] = None,
861
+ output_attentions: Optional[bool] = None,
862
+ output_hidden_states: Optional[bool] = None,
863
+ return_dict: Optional[bool] = None,
864
+ ) -> Union[Tuple, BaseModelOutputWithPast]:
865
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
866
+ output_hidden_states = (
867
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
868
+ )
869
+ use_cache = use_cache if use_cache is not None else self.config.use_cache
870
+
871
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
872
+
873
+ if self.config.attn_implementation == 'flash_attention_2':
874
+ _import_flash_attn()
875
+
876
+ # retrieve input_ids and inputs_embeds
877
+ if input_ids is not None and inputs_embeds is not None:
878
+ raise ValueError('You cannot specify both input_ids and inputs_embeds at the same time')
879
+ elif input_ids is not None:
880
+ batch_size, seq_length = input_ids.shape[:2]
881
+ elif inputs_embeds is not None:
882
+ batch_size, seq_length = inputs_embeds.shape[:2]
883
+ else:
884
+ raise ValueError('You have to specify either input_ids or inputs_embeds')
885
+
886
+ seq_length_with_past = seq_length
887
+ past_key_values_length = 0
888
+ if past_key_values is not None:
889
+ past_key_values_length = past_key_values[0][0].shape[2]
890
+ seq_length_with_past = seq_length_with_past + past_key_values_length
891
+
892
+ if position_ids is None:
893
+ device = input_ids.device if input_ids is not None else inputs_embeds.device
894
+ position_ids = torch.arange(
895
+ past_key_values_length, seq_length + past_key_values_length, dtype=torch.long, device=device
896
+ )
897
+ position_ids = position_ids.unsqueeze(0)
898
+
899
+ if inputs_embeds is None:
900
+ inputs_embeds = self.tok_embeddings(input_ids)
901
+
902
+ if self.config.attn_implementation == 'flash_attention_2':
903
+ # 2d mask is passed through the layers
904
+ attention_mask = attention_mask if (attention_mask is not None and 0 in attention_mask) else None
905
+ else:
906
+ if attention_mask is None:
907
+ attention_mask = torch.ones(
908
+ (batch_size, seq_length_with_past), dtype=torch.bool, device=inputs_embeds.device
909
+ )
910
+ attention_mask = self._prepare_decoder_attention_mask(
911
+ attention_mask, (batch_size, seq_length), inputs_embeds, past_key_values_length
912
+ )
913
+
914
+ # embed positions
915
+ hidden_states = inputs_embeds
916
+
917
+ if self.gradient_checkpointing and self.training:
918
+ if use_cache:
919
+ logger.warning_once(
920
+ '`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`...'
921
+ )
922
+ use_cache = False
923
+
924
+ # decoder layers
925
+ all_hidden_states = () if output_hidden_states else None
926
+ all_self_attns = () if output_attentions else None
927
+ next_decoder_cache = () if use_cache else None
928
+
929
+ for idx, decoder_layer in enumerate(self.layers):
930
+ if output_hidden_states:
931
+ all_hidden_states += (hidden_states,)
932
+
933
+ past_key_value = past_key_values[idx] if past_key_values is not None else None
934
+
935
+ if self.gradient_checkpointing and self.training:
936
+
937
+ def create_custom_forward(module):
938
+ def custom_forward(*inputs):
939
+ # None for past_key_value
940
+ return module(*inputs, output_attentions, None)
941
+
942
+ return custom_forward
943
+
944
+ layer_outputs = torch.utils.checkpoint.checkpoint(
945
+ create_custom_forward(decoder_layer),
946
+ hidden_states,
947
+ attention_mask,
948
+ position_ids,
949
+ None,
950
+ )
951
+ else:
952
+ layer_outputs = decoder_layer(
953
+ hidden_states,
954
+ attention_mask=attention_mask,
955
+ position_ids=position_ids,
956
+ past_key_value=past_key_value,
957
+ output_attentions=output_attentions,
958
+ use_cache=use_cache,
959
+ )
960
+
961
+ hidden_states = layer_outputs[0]
962
+
963
+ if use_cache:
964
+ next_decoder_cache += (layer_outputs[2 if output_attentions else 1],)
965
+
966
+ if output_attentions:
967
+ all_self_attns += (layer_outputs[1],)
968
+
969
+ hidden_states = self.norm(hidden_states)
970
+
971
+ # add hidden states from the last decoder layer
972
+ if output_hidden_states:
973
+ all_hidden_states += (hidden_states,)
974
+
975
+ next_cache = next_decoder_cache if use_cache else None
976
+ if not return_dict:
977
+ return tuple(v for v in [hidden_states, next_cache, all_hidden_states, all_self_attns] if v is not None)
978
+ return BaseModelOutputWithPast(
979
+ last_hidden_state=hidden_states,
980
+ past_key_values=next_cache,
981
+ hidden_states=all_hidden_states,
982
+ attentions=all_self_attns,
983
+ )
984
+
985
+
986
+ # Modified from transformers.model.llama.modeling_llama.LlamaForCausalLM
987
+ class InternLM2ForCausalLM(InternLM2PreTrainedModel):
988
+ _auto_class = 'AutoModelForCausalLM'
989
+
990
+ _tied_weights_keys = ['output.weight']
991
+
992
+ def __init__(self, config):
993
+ super().__init__(config)
994
+ self.model = InternLM2Model(config)
995
+ self.vocab_size = config.vocab_size
996
+ self.output = nn.Linear(config.hidden_size, config.vocab_size, bias=False)
997
+
998
+ # Initialize weights and apply final processing
999
+ self.post_init()
1000
+
1001
+ def get_input_embeddings(self):
1002
+ return self.model.tok_embeddings
1003
+
1004
+ def set_input_embeddings(self, value):
1005
+ self.model.tok_embeddings = value
1006
+
1007
+ def get_output_embeddings(self):
1008
+ return self.output
1009
+
1010
+ def set_output_embeddings(self, new_embeddings):
1011
+ self.output = new_embeddings
1012
+
1013
+ def set_decoder(self, decoder):
1014
+ self.model = decoder
1015
+
1016
+ def get_decoder(self):
1017
+ return self.model
1018
+
1019
+ @add_start_docstrings_to_model_forward(InternLM2_INPUTS_DOCSTRING)
1020
+ @replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC)
1021
+ def forward(
1022
+ self,
1023
+ input_ids: torch.LongTensor = None,
1024
+ attention_mask: Optional[torch.Tensor] = None,
1025
+ position_ids: Optional[torch.LongTensor] = None,
1026
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
1027
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1028
+ labels: Optional[torch.LongTensor] = None,
1029
+ use_cache: Optional[bool] = None,
1030
+ output_attentions: Optional[bool] = None,
1031
+ output_hidden_states: Optional[bool] = None,
1032
+ return_dict: Optional[bool] = None,
1033
+ ) -> Union[Tuple, CausalLMOutputWithPast]:
1034
+ r"""
1035
+ Args:
1036
+ labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
1037
+ Labels for computing the masked language modeling loss. Indices should either be in `[0, ...,
1038
+ config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored
1039
+ (masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`.
1040
+
1041
+ Returns:
1042
+
1043
+ Example:
1044
+
1045
+ ```python
1046
+ >>> from transformers import AutoTokenizer, InternLM2ForCausalLM
1047
+
1048
+ >>> model = InternLM2ForCausalLM.from_pretrained(PATH_TO_CONVERTED_WEIGHTS)
1049
+ >>> tokenizer = AutoTokenizer.from_pretrained(PATH_TO_CONVERTED_TOKENIZER)
1050
+
1051
+ >>> prompt = "Hey, are you conscious? Can you talk to me?"
1052
+ >>> inputs = tokenizer(prompt, return_tensors="pt")
1053
+
1054
+ >>> # Generate
1055
+ >>> generate_ids = model.generate(inputs.input_ids, max_length=30)
1056
+ >>> tokenizer.batch_decode(generate_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False)[0]
1057
+ "Hey, are you conscious? Can you talk to me?\nI'm not conscious, but I can talk to you."
1058
+ ```"""
1059
+
1060
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
1061
+ output_hidden_states = (
1062
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
1063
+ )
1064
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1065
+
1066
+ # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn)
1067
+ outputs = self.model(
1068
+ input_ids=input_ids,
1069
+ attention_mask=attention_mask,
1070
+ position_ids=position_ids,
1071
+ past_key_values=past_key_values,
1072
+ inputs_embeds=inputs_embeds,
1073
+ use_cache=use_cache,
1074
+ output_attentions=output_attentions,
1075
+ output_hidden_states=output_hidden_states,
1076
+ return_dict=return_dict,
1077
+ )
1078
+
1079
+ hidden_states = outputs[0]
1080
+ logits = self.output(hidden_states)
1081
+ logits = logits.float()
1082
+
1083
+ loss = None
1084
+ if labels is not None:
1085
+ # Shift so that tokens < n predict n
1086
+ shift_logits = logits[..., :-1, :].contiguous()
1087
+ shift_labels = labels[..., 1:].contiguous()
1088
+ # Flatten the tokens
1089
+ loss_fct = CrossEntropyLoss()
1090
+ shift_logits = shift_logits.view(-1, self.config.vocab_size)
1091
+ shift_labels = shift_labels.view(-1)
1092
+ # Enable model parallelism
1093
+ shift_labels = shift_labels.to(shift_logits.device)
1094
+ loss = loss_fct(shift_logits, shift_labels)
1095
+
1096
+ if not return_dict:
1097
+ output = (logits,) + outputs[1:]
1098
+ return (loss,) + output if loss is not None else output
1099
+
1100
+ device = input_ids.device if input_ids is not None else inputs_embeds.device
1101
+ output = CausalLMOutputWithPast(
1102
+ loss=loss,
1103
+ logits=logits,
1104
+ past_key_values=outputs.past_key_values,
1105
+ hidden_states=outputs.hidden_states,
1106
+ attentions=outputs.attentions,
1107
+ )
1108
+ output['logits'] = output['logits'].to(device)
1109
+ return output
1110
+
1111
+ def prepare_inputs_for_generation(
1112
+ self, input_ids, past_key_values=None, attention_mask=None, inputs_embeds=None, **kwargs
1113
+ ):
1114
+ if past_key_values is not None:
1115
+ past_length = past_key_values[0][0].shape[2]
1116
+
1117
+ # Some generation methods already pass only the last input ID
1118
+ if input_ids.shape[1] > past_length:
1119
+ remove_prefix_length = past_length
1120
+ else:
1121
+ # Default to old behavior: keep only final ID
1122
+ remove_prefix_length = input_ids.shape[1] - 1
1123
+
1124
+ input_ids = input_ids[:, remove_prefix_length:]
1125
+
1126
+ position_ids = kwargs.get('position_ids', None)
1127
+ if attention_mask is not None and position_ids is None:
1128
+ # create position_ids on the fly for batch generation
1129
+ position_ids = attention_mask.long().cumsum(-1) - 1
1130
+ position_ids.masked_fill_(attention_mask == 0, 1)
1131
+ if past_key_values:
1132
+ position_ids = position_ids[:, -input_ids.shape[1] :]
1133
+
1134
+ # if `inputs_embeds` are passed, we only want to use them in the 1st generation step
1135
+ if inputs_embeds is not None and past_key_values is None:
1136
+ model_inputs = {'inputs_embeds': inputs_embeds}
1137
+ else:
1138
+ model_inputs = {'input_ids': input_ids}
1139
+
1140
+ model_inputs.update(
1141
+ {
1142
+ 'position_ids': position_ids,
1143
+ 'past_key_values': past_key_values,
1144
+ 'use_cache': kwargs.get('use_cache'),
1145
+ 'attention_mask': attention_mask,
1146
+ }
1147
+ )
1148
+ return model_inputs
1149
+
1150
+ @staticmethod
1151
+ def _reorder_cache(past_key_values, beam_idx):
1152
+ reordered_past = ()
1153
+ for layer_past in past_key_values:
1154
+ reordered_past += (
1155
+ tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past),
1156
+ )
1157
+ return reordered_past
1158
+
1159
+ def build_inputs(self, tokenizer, query: str, history: List[Tuple[str, str]] = [], meta_instruction=''):
1160
+ if tokenizer.add_bos_token:
1161
+ prompt = ''
1162
+ else:
1163
+ prompt = tokenizer.bos_token
1164
+ if meta_instruction:
1165
+ prompt += f"""<|im_start|>system\n{meta_instruction}<|im_end|>\n"""
1166
+ for record in history:
1167
+ prompt += f"""<|im_start|>user\n{record[0]}<|im_end|>\n<|im_start|>assistant\n{record[1]}<|im_end|>\n"""
1168
+ prompt += f"""<|im_start|>user\n{query}<|im_end|>\n<|im_start|>assistant\n"""
1169
+ return tokenizer([prompt], return_tensors='pt')
1170
+
1171
+ @torch.no_grad()
1172
+ def chat(
1173
+ self,
1174
+ tokenizer,
1175
+ query: str,
1176
+ history: List[Tuple[str, str]] = [],
1177
+ streamer: Optional[BaseStreamer] = None,
1178
+ max_new_tokens: int = 1024,
1179
+ do_sample: bool = True,
1180
+ temperature: float = 0.8,
1181
+ top_p: float = 0.8,
1182
+ meta_instruction: str = 'You are an AI assistant whose name is InternLM (书生·浦语).\n'
1183
+ '- InternLM (书生·浦语) is a conversational language model that is developed by Shanghai AI Laboratory (上海人工智能实验室). It is designed to be helpful, honest, and harmless.\n'
1184
+ '- InternLM (书生·浦语) can understand and communicate fluently in the language chosen by the user such as English and 中文.',
1185
+ **kwargs,
1186
+ ):
1187
+ inputs = self.build_inputs(tokenizer, query, history, meta_instruction)
1188
+ inputs = {k: v.to(self.device) for k, v in inputs.items() if torch.is_tensor(v)}
1189
+ # also add end-of-assistant token in eos token id to avoid unnecessary generation
1190
+ eos_token_id = [tokenizer.eos_token_id, tokenizer.convert_tokens_to_ids(['<|im_end|>'])[0]]
1191
+ outputs = self.generate(
1192
+ **inputs,
1193
+ streamer=streamer,
1194
+ max_new_tokens=max_new_tokens,
1195
+ do_sample=do_sample,
1196
+ temperature=temperature,
1197
+ top_p=top_p,
1198
+ eos_token_id=eos_token_id,
1199
+ **kwargs,
1200
+ )
1201
+ outputs = outputs[0].cpu().tolist()[len(inputs['input_ids'][0]) :]
1202
+ response = tokenizer.decode(outputs, skip_special_tokens=True)
1203
+ response = response.split('<|im_end|>')[0]
1204
+ history = history + [(query, response)]
1205
+ return response, history
1206
+
1207
+ @torch.no_grad()
1208
+ def stream_chat(
1209
+ self,
1210
+ tokenizer,
1211
+ query: str,
1212
+ history: List[Tuple[str, str]] = [],
1213
+ max_new_tokens: int = 1024,
1214
+ do_sample: bool = True,
1215
+ temperature: float = 0.8,
1216
+ top_p: float = 0.8,
1217
+ **kwargs,
1218
+ ):
1219
+ """
1220
+ Return a generator in format: (response, history)
1221
+ Eg.
1222
+ ('你好,有什么可以帮助您的吗', [('你好', '你好,有什么可以帮助您的吗')])
1223
+ ('你好,有什么可以帮助您的吗?', [('你好', '你好,有什么可以帮助您的吗?')])
1224
+ """
1225
+ if BaseStreamer is None:
1226
+ raise ModuleNotFoundError(
1227
+ 'The version of `transformers` is too low. Please make sure '
1228
+ 'that you have installed `transformers>=4.28.0`.'
1229
+ )
1230
+
1231
+ response_queue = queue.Queue(maxsize=20)
1232
+
1233
+ class ChatStreamer(BaseStreamer):
1234
+ def __init__(self, tokenizer) -> None:
1235
+ super().__init__()
1236
+ self.tokenizer = tokenizer
1237
+ self.queue = response_queue
1238
+ self.query = query
1239
+ self.history = history
1240
+ self.response = ''
1241
+ self.cache = []
1242
+ self.received_inputs = False
1243
+ self.queue.put((self.response, history + [(self.query, self.response)]))
1244
+
1245
+ def put(self, value):
1246
+ if len(value.shape) > 1 and value.shape[0] > 1:
1247
+ raise ValueError('ChatStreamer only supports batch size 1')
1248
+ elif len(value.shape) > 1:
1249
+ value = value[0]
1250
+
1251
+ if not self.received_inputs:
1252
+ # The first received value is input_ids, ignore here
1253
+ self.received_inputs = True
1254
+ return
1255
+
1256
+ self.cache.extend(value.tolist())
1257
+ token = self.tokenizer.decode(self.cache, skip_special_tokens=True)
1258
+ if token.strip() != '<|im_end|>':
1259
+ self.response = self.response + token
1260
+ history = self.history + [(self.query, self.response)]
1261
+ self.queue.put((self.response, history))
1262
+ self.cache = []
1263
+ else:
1264
+ self.end()
1265
+
1266
+ def end(self):
1267
+ self.queue.put(None)
1268
+
1269
+ def stream_producer():
1270
+ return self.chat(
1271
+ tokenizer=tokenizer,
1272
+ query=query,
1273
+ streamer=ChatStreamer(tokenizer=tokenizer),
1274
+ history=history,
1275
+ max_new_tokens=max_new_tokens,
1276
+ do_sample=do_sample,
1277
+ temperature=temperature,
1278
+ top_p=top_p,
1279
+ **kwargs,
1280
+ )
1281
+
1282
+ def consumer():
1283
+ producer = threading.Thread(target=stream_producer)
1284
+ producer.start()
1285
+ while True:
1286
+ res = response_queue.get()
1287
+ if res is None:
1288
+ return
1289
+ yield res
1290
+
1291
+ return consumer()
1292
+
1293
+
1294
+ # Copied from transformers.model.llama.modeling_llama.LlamaForSequenceClassification with Llama->InternLM2
1295
+ @add_start_docstrings(
1296
+ """
1297
+ The InternLM2 Model transformer with a sequence classification head on top (linear layer).
1298
+
1299
+ [`InternLM2ForSequenceClassification`] uses the last token in order to do the classification,
1300
+ as other causal models (e.g. GPT-2) do.
1301
+
1302
+ Since it does classification on the last token, it requires to know the position of the last token. If a
1303
+ `pad_token_id` is defined in the configuration, it finds the last token that is not a padding token in each row. If
1304
+ no `pad_token_id` is defined, it simply takes the last value in each row of the batch. Since it cannot guess the
1305
+ padding tokens when `inputs_embeds` are passed instead of `input_ids`, it does the same (take the last value in
1306
+ each row of the batch).
1307
+ """,
1308
+ InternLM2_START_DOCSTRING,
1309
+ )
1310
+ class InternLM2ForSequenceClassification(InternLM2PreTrainedModel):
1311
+ def __init__(self, config):
1312
+ super().__init__(config)
1313
+ self.num_labels = config.num_labels
1314
+ self.model = InternLM2Model(config)
1315
+ self.score = nn.Linear(config.hidden_size, self.num_labels, bias=False)
1316
+
1317
+ # Initialize weights and apply final processing
1318
+ self.post_init()
1319
+
1320
+ def get_input_embeddings(self):
1321
+ return self.model.tok_embeddings
1322
+
1323
+ def set_input_embeddings(self, value):
1324
+ self.model.tok_embeddings = value
1325
+
1326
+ @add_start_docstrings_to_model_forward(InternLM2_INPUTS_DOCSTRING)
1327
+ def forward(
1328
+ self,
1329
+ input_ids: torch.LongTensor = None,
1330
+ attention_mask: Optional[torch.Tensor] = None,
1331
+ position_ids: Optional[torch.LongTensor] = None,
1332
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
1333
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1334
+ labels: Optional[torch.LongTensor] = None,
1335
+ use_cache: Optional[bool] = None,
1336
+ output_attentions: Optional[bool] = None,
1337
+ output_hidden_states: Optional[bool] = None,
1338
+ return_dict: Optional[bool] = None,
1339
+ ) -> Union[Tuple, SequenceClassifierOutputWithPast]:
1340
+ r"""
1341
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1342
+ Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
1343
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
1344
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
1345
+ """
1346
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1347
+
1348
+ transformer_outputs = self.model(
1349
+ input_ids,
1350
+ attention_mask=attention_mask,
1351
+ position_ids=position_ids,
1352
+ past_key_values=past_key_values,
1353
+ inputs_embeds=inputs_embeds,
1354
+ use_cache=use_cache,
1355
+ output_attentions=output_attentions,
1356
+ output_hidden_states=output_hidden_states,
1357
+ return_dict=return_dict,
1358
+ )
1359
+ hidden_states = transformer_outputs[0]
1360
+ logits = self.score(hidden_states)
1361
+
1362
+ if input_ids is not None:
1363
+ batch_size = input_ids.shape[0]
1364
+ else:
1365
+ batch_size = inputs_embeds.shape[0]
1366
+
1367
+ if self.config.pad_token_id is None and batch_size != 1:
1368
+ raise ValueError('Cannot handle batch sizes > 1 if no padding token is defined.')
1369
+ if self.config.pad_token_id is None:
1370
+ sequence_lengths = -1
1371
+ else:
1372
+ if input_ids is not None:
1373
+ sequence_lengths = (torch.eq(input_ids, self.config.pad_token_id).int().argmax(-1) - 1).to(
1374
+ logits.device
1375
+ )
1376
+ else:
1377
+ sequence_lengths = -1
1378
+
1379
+ pooled_logits = logits[torch.arange(batch_size, device=logits.device), sequence_lengths]
1380
+
1381
+ loss = None
1382
+ if labels is not None:
1383
+ labels = labels.to(logits.device)
1384
+ if self.config.problem_type is None:
1385
+ if self.num_labels == 1:
1386
+ self.config.problem_type = 'regression'
1387
+ elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
1388
+ self.config.problem_type = 'single_label_classification'
1389
+ else:
1390
+ self.config.problem_type = 'multi_label_classification'
1391
+
1392
+ if self.config.problem_type == 'regression':
1393
+ loss_fct = MSELoss()
1394
+ if self.num_labels == 1:
1395
+ loss = loss_fct(pooled_logits.squeeze(), labels.squeeze())
1396
+ else:
1397
+ loss = loss_fct(pooled_logits, labels)
1398
+ elif self.config.problem_type == 'single_label_classification':
1399
+ loss_fct = CrossEntropyLoss()
1400
+ loss = loss_fct(pooled_logits.view(-1, self.num_labels), labels.view(-1))
1401
+ elif self.config.problem_type == 'multi_label_classification':
1402
+ loss_fct = BCEWithLogitsLoss()
1403
+ loss = loss_fct(pooled_logits, labels)
1404
+ if not return_dict:
1405
+ output = (pooled_logits,) + transformer_outputs[1:]
1406
+ return ((loss,) + output) if loss is not None else output
1407
+
1408
+ return SequenceClassifierOutputWithPast(
1409
+ loss=loss,
1410
+ logits=pooled_logits,
1411
+ past_key_values=transformer_outputs.past_key_values,
1412
+ hidden_states=transformer_outputs.hidden_states,
1413
+ attentions=transformer_outputs.attentions,
1414
+ )
modeling_internvl_chat.py ADDED
@@ -0,0 +1,358 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # --------------------------------------------------------
2
+ # InternVL
3
+ # Copyright (c) 2023 OpenGVLab
4
+ # Licensed under The MIT License [see LICENSE for details]
5
+ # --------------------------------------------------------
6
+ import warnings
7
+ from typing import Any, List, Optional, Tuple, Union
8
+
9
+ import torch.utils.checkpoint
10
+ from peft import LoraConfig, get_peft_model
11
+ from torch import nn
12
+ from torch.nn import CrossEntropyLoss
13
+ from transformers import (AutoModel, GenerationConfig, LlamaForCausalLM,
14
+ LlamaTokenizer)
15
+ from transformers.modeling_outputs import CausalLMOutputWithPast
16
+ from transformers.modeling_utils import PreTrainedModel
17
+ from transformers.utils import ModelOutput, logging
18
+
19
+ from .configuration_internvl_chat import InternVLChatConfig
20
+ from .modeling_intern_vit import InternVisionModel
21
+ from .modeling_internlm2 import InternLM2ForCausalLM
22
+
23
+ logger = logging.get_logger(__name__)
24
+
25
+
26
+ class InternVLChatModel(PreTrainedModel):
27
+ config_class = InternVLChatConfig
28
+ main_input_name = 'pixel_values'
29
+ _no_split_modules = ['InternVisionEncoderLayer', 'LlamaDecoderLayer', 'InternLM2DecoderLayer']
30
+
31
+ def __init__(self, config: InternVLChatConfig, vision_model=None, language_model=None):
32
+ super().__init__(config)
33
+
34
+ image_size = config.force_image_size or config.vision_config.image_size
35
+ patch_size = config.vision_config.patch_size
36
+ self.patch_size = patch_size
37
+ self.select_layer = config.select_layer
38
+ self.template = config.template
39
+ self.num_image_token = int((image_size // patch_size) ** 2 * (config.downsample_ratio ** 2))
40
+ self.downsample_ratio = config.downsample_ratio
41
+ self.ps_version = config.ps_version
42
+
43
+ logger.info(f'num_image_token: {self.num_image_token}')
44
+ logger.info(f'ps_version: {self.ps_version}')
45
+ if vision_model is not None:
46
+ self.vision_model = vision_model
47
+ else:
48
+ self.vision_model = InternVisionModel(config.vision_config)
49
+ if language_model is not None:
50
+ self.language_model = language_model
51
+ else:
52
+ if config.llm_config.architectures[0] == 'LlamaForCausalLM':
53
+ self.language_model = LlamaForCausalLM(config.llm_config)
54
+ elif config.llm_config.architectures[0] == 'InternLM2ForCausalLM':
55
+ self.language_model = InternLM2ForCausalLM(config.llm_config)
56
+ else:
57
+ raise NotImplementedError(f'{config.llm_config.architectures[0]} is not implemented.')
58
+
59
+ vit_hidden_size = config.vision_config.hidden_size
60
+ llm_hidden_size = config.llm_config.hidden_size
61
+
62
+ self.mlp1 = nn.Sequential(
63
+ nn.LayerNorm(vit_hidden_size * int(1 / self.downsample_ratio) ** 2),
64
+ nn.Linear(vit_hidden_size * int(1 / self.downsample_ratio) ** 2, llm_hidden_size),
65
+ nn.GELU(),
66
+ nn.Linear(llm_hidden_size, llm_hidden_size)
67
+ )
68
+
69
+ # if config.force_image_size != config.vision_config.image_size:
70
+ # self.vision_model.resize_pos_embeddings(
71
+ # old_size=config.vision_config.image_size,
72
+ # new_size=config.force_image_size,
73
+ # patch_size=config.vision_config.patch_size
74
+ # )
75
+
76
+ self.img_context_token_id = None
77
+ self.neftune_alpha = None
78
+
79
+ if config.use_backbone_lora:
80
+ self.wrap_backbone_lora(r=config.use_backbone_lora, lora_alpha=2 * config.use_backbone_lora)
81
+
82
+ if config.use_llm_lora:
83
+ self.wrap_llm_lora(r=config.use_llm_lora, lora_alpha=2 * config.use_llm_lora)
84
+
85
+ def wrap_backbone_lora(self, r=128, lora_alpha=256, lora_dropout=0.05):
86
+ lora_config = LoraConfig(
87
+ r=r,
88
+ target_modules=['attn.qkv', 'attn.proj', 'mlp.fc1', 'mlp.fc2'],
89
+ lora_alpha=lora_alpha,
90
+ lora_dropout=lora_dropout,
91
+ )
92
+ self.vision_model = get_peft_model(self.vision_model, lora_config)
93
+ self.vision_model.print_trainable_parameters()
94
+
95
+ def wrap_llm_lora(self, r=128, lora_alpha=256, lora_dropout=0.05):
96
+ lora_config = LoraConfig(
97
+ r=r,
98
+ target_modules=['self_attn.q_proj', 'self_attn.k_proj', 'self_attn.v_proj', 'self_attn.o_proj',
99
+ 'mlp.gate_proj', 'mlp.down_proj', 'mlp.up_proj'],
100
+ lora_alpha=lora_alpha,
101
+ lora_dropout=lora_dropout,
102
+ task_type='CAUSAL_LM'
103
+ )
104
+ self.language_model = get_peft_model(self.language_model, lora_config)
105
+ self.language_model.enable_input_require_grads()
106
+ self.language_model.print_trainable_parameters()
107
+
108
+ def forward(
109
+ self,
110
+ pixel_values: torch.FloatTensor,
111
+ input_ids: torch.LongTensor = None,
112
+ attention_mask: Optional[torch.Tensor] = None,
113
+ position_ids: Optional[torch.LongTensor] = None,
114
+ image_flags: Optional[torch.LongTensor] = None,
115
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
116
+ labels: Optional[torch.LongTensor] = None,
117
+ use_cache: Optional[bool] = None,
118
+ output_attentions: Optional[bool] = None,
119
+ output_hidden_states: Optional[bool] = None,
120
+ return_dict: Optional[bool] = None,
121
+ ) -> Union[Tuple, CausalLMOutputWithPast]:
122
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
123
+
124
+ image_flags = image_flags.squeeze(-1)
125
+ input_embeds = self.language_model.get_input_embeddings()(input_ids)
126
+
127
+ vit_embeds = self.extract_feature(pixel_values)
128
+ vit_embeds = vit_embeds[image_flags == 1]
129
+ vit_batch_size = pixel_values.shape[0]
130
+
131
+ B, N, C = input_embeds.shape
132
+ input_embeds = input_embeds.reshape(B * N, C)
133
+
134
+ if torch.distributed.get_rank() == 0:
135
+ print(f'dynamic ViT batch size: {vit_batch_size}, images per sample: {vit_batch_size / B}, dynamic token length: {N}')
136
+
137
+ input_ids = input_ids.reshape(B * N)
138
+ selected = (input_ids == self.img_context_token_id)
139
+ try:
140
+ input_embeds[selected] = input_embeds[selected] * 0.0 + vit_embeds.reshape(-1, C)
141
+ except Exception as e:
142
+ vit_embeds = vit_embeds.reshape(-1, C)
143
+ print(f'warning: {e}, input_embeds[selected].shape={input_embeds[selected].shape}, '
144
+ f'vit_embeds.shape={vit_embeds.shape}')
145
+ n_token = selected.sum()
146
+ input_embeds[selected] = input_embeds[selected] * 0.0 + vit_embeds[:n_token]
147
+
148
+ input_embeds = input_embeds.reshape(B, N, C)
149
+
150
+ outputs = self.language_model(
151
+ inputs_embeds=input_embeds,
152
+ attention_mask=attention_mask,
153
+ position_ids=position_ids,
154
+ past_key_values=past_key_values,
155
+ use_cache=use_cache,
156
+ output_attentions=output_attentions,
157
+ output_hidden_states=output_hidden_states,
158
+ return_dict=return_dict,
159
+ )
160
+ logits = outputs.logits
161
+
162
+ loss = None
163
+ if labels is not None:
164
+ # Shift so that tokens < n predict n
165
+ shift_logits = logits[..., :-1, :].contiguous()
166
+ shift_labels = labels[..., 1:].contiguous()
167
+ # Flatten the tokens
168
+ loss_fct = CrossEntropyLoss()
169
+ shift_logits = shift_logits.view(-1, self.language_model.config.vocab_size)
170
+ shift_labels = shift_labels.view(-1)
171
+ # Enable model parallelism
172
+ shift_labels = shift_labels.to(shift_logits.device)
173
+ loss = loss_fct(shift_logits, shift_labels)
174
+
175
+ if not return_dict:
176
+ output = (logits,) + outputs[1:]
177
+ return (loss,) + output if loss is not None else output
178
+
179
+ return CausalLMOutputWithPast(
180
+ loss=loss,
181
+ logits=logits,
182
+ past_key_values=outputs.past_key_values,
183
+ hidden_states=outputs.hidden_states,
184
+ attentions=outputs.attentions,
185
+ )
186
+
187
+ def pixel_shuffle(self, x, scale_factor=0.5):
188
+ n, w, h, c = x.size()
189
+ # N, W, H, C --> N, W, H * scale, C // scale
190
+ x = x.view(n, w, int(h * scale_factor), int(c / scale_factor))
191
+ # N, W, H * scale, C // scale --> N, H * scale, W, C // scale
192
+ x = x.permute(0, 2, 1, 3).contiguous()
193
+ # N, H * scale, W, C // scale --> N, H * scale, W * scale, C // (scale ** 2)
194
+ x = x.view(n, int(h * scale_factor), int(w * scale_factor),
195
+ int(c / (scale_factor * scale_factor)))
196
+ if self.ps_version == 'v1':
197
+ warnings.warn("In ps_version 'v1', the height and width have not been swapped back, "
198
+ 'which results in a transposed image.')
199
+ else:
200
+ x = x.permute(0, 2, 1, 3).contiguous()
201
+ return x
202
+
203
+ def noised_embed(self, vit_embeds, noise_alpha=5):
204
+ dims = torch.tensor(vit_embeds.size(1) * vit_embeds.size(2))
205
+ mag_norm = noise_alpha / torch.sqrt(dims)
206
+ noise = torch.zeros_like(vit_embeds).uniform_(-mag_norm, mag_norm)
207
+ return vit_embeds + noise
208
+
209
+ def extract_feature(self, pixel_values):
210
+ if self.select_layer == -1:
211
+ vit_embeds = self.vision_model(
212
+ pixel_values=pixel_values,
213
+ output_hidden_states=False,
214
+ return_dict=True).last_hidden_state
215
+ else:
216
+ vit_embeds = self.vision_model(
217
+ pixel_values=pixel_values,
218
+ output_hidden_states=True,
219
+ return_dict=True).hidden_states[self.select_layer]
220
+ vit_embeds = vit_embeds[:, 1:, :]
221
+
222
+ if self.training and self.neftune_alpha is not None:
223
+ vit_embeds = self.noised_embed(vit_embeds, self.neftune_alpha)
224
+
225
+ h = w = int(vit_embeds.shape[1] ** 0.5)
226
+ vit_embeds = vit_embeds.reshape(vit_embeds.shape[0], h, w, -1)
227
+ vit_embeds = self.pixel_shuffle(vit_embeds, scale_factor=self.downsample_ratio)
228
+ vit_embeds = vit_embeds.reshape(vit_embeds.shape[0], -1, vit_embeds.shape[-1])
229
+ vit_embeds = self.mlp1(vit_embeds)
230
+ return vit_embeds
231
+
232
+ def batch_chat(self, tokenizer, pixel_values, image_counts, questions, generation_config, history=None,
233
+ return_history=False, IMG_START_TOKEN='<img>', IMG_END_TOKEN='</img>',
234
+ IMG_CONTEXT_TOKEN='<IMG_CONTEXT>'):
235
+ if history is not None or return_history:
236
+ print('Now multi-turn chat is not supported in batch_chat.')
237
+ raise NotImplementedError
238
+ img_context_token_id = tokenizer.convert_tokens_to_ids(IMG_CONTEXT_TOKEN)
239
+ self.img_context_token_id = img_context_token_id
240
+
241
+ from .conversation import get_conv_template
242
+
243
+ queries = []
244
+ image_bs = pixel_values.shape[0]
245
+ # print(f'dynamic ViT batch size: {image_bs}, image_counts: {image_counts}')
246
+ for idx, image_count in enumerate(image_counts):
247
+ image_token = IMG_START_TOKEN + IMG_CONTEXT_TOKEN * self.num_image_token * image_count + IMG_END_TOKEN
248
+ question = image_token + '\n' + questions[idx]
249
+ template = get_conv_template(self.template)
250
+ template.append_message(template.roles[0], question)
251
+ template.append_message(template.roles[1], None)
252
+ query = template.get_prompt()
253
+ queries.append(query)
254
+ tokenizer.padding_side = 'left'
255
+ model_inputs = tokenizer(queries, return_tensors='pt', padding=True)
256
+ input_ids = model_inputs['input_ids'].cuda()
257
+ attention_mask = model_inputs['attention_mask'].cuda()
258
+ eos_token_id = tokenizer.convert_tokens_to_ids(template.sep)
259
+ generation_config['eos_token_id'] = eos_token_id
260
+
261
+ generation_output = self.generate(
262
+ pixel_values=pixel_values,
263
+ input_ids=input_ids,
264
+ attention_mask=attention_mask,
265
+ **generation_config
266
+ )
267
+ responses = tokenizer.batch_decode(generation_output, skip_special_tokens=True)
268
+ responses = [response.split(template.sep)[0].strip() for response in responses]
269
+ return responses
270
+
271
+ def chat(self, tokenizer, pixel_values, question, generation_config, history=None, return_history=False,
272
+ IMG_START_TOKEN='<img>', IMG_END_TOKEN='</img>', IMG_CONTEXT_TOKEN='<IMG_CONTEXT>'):
273
+
274
+ img_context_token_id = tokenizer.convert_tokens_to_ids(IMG_CONTEXT_TOKEN)
275
+ self.img_context_token_id = img_context_token_id
276
+
277
+ from .conversation import get_conv_template
278
+
279
+ template = get_conv_template(self.template)
280
+ image_bs = pixel_values.shape[0]
281
+ print(f'dynamic ViT batch size: {image_bs}')
282
+ if history is None:
283
+ history = []
284
+ image_tokens = IMG_START_TOKEN + IMG_CONTEXT_TOKEN * self.num_image_token * image_bs + IMG_END_TOKEN
285
+ question = image_tokens + '\n' + question
286
+ else:
287
+ for (old_question, old_answer) in history:
288
+ template.append_message(template.roles[0], old_question)
289
+ template.append_message(template.roles[1], old_answer)
290
+ template.append_message(template.roles[0], question)
291
+ template.append_message(template.roles[1], None)
292
+ query = template.get_prompt()
293
+ model_inputs = tokenizer(query, return_tensors='pt')
294
+ input_ids = model_inputs['input_ids'].cuda()
295
+ attention_mask = model_inputs['attention_mask'].cuda()
296
+ eos_token_id = tokenizer.convert_tokens_to_ids(template.sep)
297
+ generation_config['eos_token_id'] = eos_token_id
298
+
299
+ generation_output = self.generate(
300
+ pixel_values=pixel_values,
301
+ input_ids=input_ids,
302
+ attention_mask=attention_mask,
303
+ **generation_config
304
+ )
305
+ response = tokenizer.batch_decode(generation_output, skip_special_tokens=True)[0]
306
+ response = response.split(template.sep)[0].strip()
307
+ history.append((question, response))
308
+ if return_history:
309
+ return response, history
310
+ else:
311
+ # query_to_print = query.replace(image_tokens, '<image>')
312
+ # print(query_to_print, response)
313
+ return response
314
+ return response
315
+
316
+ @torch.no_grad()
317
+ def generate(
318
+ self,
319
+ pixel_values: Optional[torch.FloatTensor] = None,
320
+ input_ids: Optional[torch.FloatTensor] = None,
321
+ attention_mask: Optional[torch.LongTensor] = None,
322
+ visual_features: Optional[torch.FloatTensor] = None,
323
+ generation_config: Optional[GenerationConfig] = None,
324
+ output_hidden_states: Optional[bool] = None,
325
+ return_dict: Optional[bool] = None,
326
+ **generate_kwargs,
327
+ ) -> torch.LongTensor:
328
+
329
+ assert self.img_context_token_id is not None
330
+ if pixel_values is not None:
331
+ if visual_features is not None:
332
+ vit_embeds = visual_features
333
+ else:
334
+ vit_embeds = self.extract_feature(pixel_values)
335
+ input_embeds = self.language_model.get_input_embeddings()(input_ids)
336
+ B, N, C = input_embeds.shape
337
+ input_embeds = input_embeds.reshape(B * N, C)
338
+
339
+ input_ids = input_ids.reshape(B * N)
340
+ selected = (input_ids == self.img_context_token_id)
341
+ assert selected.sum() != 0
342
+ input_embeds[selected] = vit_embeds.reshape(-1, C).to(input_embeds.device)
343
+
344
+ input_embeds = input_embeds.reshape(B, N, C)
345
+ else:
346
+ input_embeds = self.language_model.get_input_embeddings()(input_ids)
347
+
348
+ outputs = self.language_model.generate(
349
+ inputs_embeds=input_embeds,
350
+ attention_mask=attention_mask,
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+ generation_config=generation_config,
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+ output_hidden_states=output_hidden_states,
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+ return_dict=return_dict,
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+ use_cache=True,
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+ **generate_kwargs,
356
+ )
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+
358
+ return outputs
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