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96d51b59d2
Summary: Add code to download weights and demo code for running model. Weights at: - https://huggingface.co/collections/facebook/blt-6801263d4ac1704702a192a6 - https://huggingface.co/facebook/blt - https://huggingface.co/facebook/blt-1b - https://huggingface.co/facebook/blt-7b Test Plan:
43 lines
1.5 KiB
Python
43 lines
1.5 KiB
Python
import os
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import torch
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import typer
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from bytelatent.distributed import DistributedArgs, setup_torch_distributed
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from bytelatent.generate import load_consolidated_model_and_tokenizer
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from bytelatent.generate_blt import generate_nocache
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from bytelatent.model.blt import ByteLatentTransformer
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from bytelatent.tokenizers.blt_tokenizer import BltTokenizer
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def main(prompt: str, model_name: str = "blt-1b"):
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distributed_args = DistributedArgs()
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distributed_args.configure_world()
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if not torch.distributed.is_initialized():
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setup_torch_distributed(distributed_args)
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checkpoint_path = os.path.join("hf-weights", model_name)
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print(f"Loading BLT model: {model_name}")
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model, tokenizer, train_cfg = load_consolidated_model_and_tokenizer(
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checkpoint_path,
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)
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assert isinstance(model, ByteLatentTransformer)
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assert isinstance(tokenizer, BltTokenizer)
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patcher_args = train_cfg.data.patcher_args.model_copy(deep=True)
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patcher_args.realtime_patching = True
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print("Loading entropy model and patcher")
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patcher_args.entropy_model_checkpoint_dir = os.path.join(
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checkpoint_path, "entropy_model"
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)
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patcher = patcher_args.build()
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prompts = [prompt]
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outputs = generate_nocache(
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prompts, model=model, tokenizer=tokenizer, patcher=patcher
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)
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text_outputs = [tokenizer.decode(t) for t in outputs]
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for p, t in zip(prompts, text_outputs):
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print(f'Prompt: "{p}" Completion: "{t}"')
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print()
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if __name__ == "__main__":
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typer.run(main)
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