---
license: bigscience-openrail-m
datasets:
- apcl/jm52m
---
# Jam 

Jam is a GPT2-like model for research in fine-grained Java analysis. It is intended for fine-grained analysis of Java source code at the level of methods, statements, and variables, as a foundation for downstream tasks like code completion, comment generation, and automated bug repair. 

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## Jam Training Details

- We trained the jam model using the training procedures from Daniel Grittner's [NanoGPT-LoRA](https://github.com/danielgrittner/nanoGPT-LoRA)

- The dataset used to train our model is our own dataset [jm52m dataset](https://huggingface.co/datasets/apcl/jm52m), which consists of the processed source code of 52 million Java methods. 

- We train the model on [training set](https://huggingface.co/datasets/apcl/jm52m/blob/main/train.bin) for 1 epoch, roughly 300,000 training iterations.
 
- Our [GitHub repo](https://github.com/apcl-research/jam/blob/main) contains the code for re-training using the [raw data](https://huggingface.co/datasets/apcl/jm52m/blob/main/fundats-j1.pkl)

| Hyperparameter | Description | Value |
| ----------- | ----------- |------------|
|e | embedding dimensions              | 1024 |		 
|L | number of layers 			  		| 24 | 		 
|h | attention heads             		| 16 |		 
|c | block size / context length       | 256 |  		 
|b | batch size                        | 4  | 		 
|a | accumulation steps				| 32 |		 
|d | dropout							| 0.20 |		 
|r | learning rate                     | 3e-5 |		 
|y | weight decay						| 1e-1 |	 

We train our models using a single NVidia A5000 GPU. 

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## Jam Projects

Current projects using the JAM pre-trained model can be found at our Github repository:

https://github.com/apcl-research/jam