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https://github.com/immich-app/immich.git
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41580696c7
* update export code * add uuid glob, sort model names * add new models to ml, sort names * add new models to server, sort by dims and name * typo in name * update export dependencies * onnx save function * format
50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
from pathlib import Path
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import onnx
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import onnxruntime as ort
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import onnxsim
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def save_onnx(model: onnx.ModelProto, output_path: Path | str) -> None:
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try:
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onnx.save(model, output_path)
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except ValueError as e:
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if "The proto size is larger than the 2 GB limit." in str(e):
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onnx.save(model, output_path, save_as_external_data=True, size_threshold=1_000_000)
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else:
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raise e
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def optimize_onnxsim(model_path: Path | str, output_path: Path | str) -> None:
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model_path = Path(model_path)
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output_path = Path(output_path)
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model = onnx.load(model_path.as_posix())
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model, check = onnxsim.simplify(model)
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assert check, "Simplified ONNX model could not be validated"
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for file in model_path.parent.iterdir():
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if file.name.startswith("Constant") or "onnx" in file.name or file.suffix == ".weight":
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file.unlink()
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save_onnx(model, output_path)
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def optimize_ort(
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model_path: Path | str,
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output_path: Path | str,
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level: ort.GraphOptimizationLevel = ort.GraphOptimizationLevel.ORT_ENABLE_BASIC,
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) -> None:
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model_path = Path(model_path)
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output_path = Path(output_path)
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sess_options = ort.SessionOptions()
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sess_options.graph_optimization_level = level
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sess_options.optimized_model_filepath = output_path.as_posix()
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ort.InferenceSession(model_path.as_posix(), providers=["CPUExecutionProvider"], sess_options=sess_options)
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def optimize(model_path: Path | str) -> None:
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model_path = Path(model_path)
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optimize_ort(model_path, model_path)
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optimize_onnxsim(model_path, model_path)
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