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---
description: Explore Ultralytics-tailored torch utility features like Model EMA, early stopping, smart inference, image scaling, get_flops, and many more.
keywords: Ultralytics, Torch Utils, Model EMA, Early Stopping, Smart Inference, Get CPU Info, Time Sync, Fuse Deconv and bn, Get num params, Get FLOPs, Scale img, Copy attr, Intersect dicts, De_parallel, Init seeds, Profile
---

# Reference for `ultralytics/utils/torch_utils.py`

!!! Note

    This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/torch_utils.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/torch_utils.py). If you spot a problem please help fix it by [contributing](https://docs.ultralytics.com/help/contributing/) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/utils/torch_utils.py) 🛠️. Thank you 🙏!

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## ::: ultralytics.utils.torch_utils.ModelEMA

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## ::: ultralytics.utils.torch_utils.EarlyStopping

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## ::: ultralytics.utils.torch_utils.torch_distributed_zero_first

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## ::: ultralytics.utils.torch_utils.smart_inference_mode

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## ::: ultralytics.utils.torch_utils.get_cpu_info

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## ::: ultralytics.utils.torch_utils.select_device

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## ::: ultralytics.utils.torch_utils.time_sync

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## ::: ultralytics.utils.torch_utils.fuse_conv_and_bn

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## ::: ultralytics.utils.torch_utils.fuse_deconv_and_bn

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## ::: ultralytics.utils.torch_utils.model_info

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## ::: ultralytics.utils.torch_utils.get_num_params

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## ::: ultralytics.utils.torch_utils.get_num_gradients

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## ::: ultralytics.utils.torch_utils.model_info_for_loggers

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## ::: ultralytics.utils.torch_utils.get_flops

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## ::: ultralytics.utils.torch_utils.get_flops_with_torch_profiler

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## ::: ultralytics.utils.torch_utils.initialize_weights

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## ::: ultralytics.utils.torch_utils.scale_img

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## ::: ultralytics.utils.torch_utils.make_divisible

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## ::: ultralytics.utils.torch_utils.copy_attr

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## ::: ultralytics.utils.torch_utils.get_latest_opset

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## ::: ultralytics.utils.torch_utils.intersect_dicts

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## ::: ultralytics.utils.torch_utils.is_parallel

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## ::: ultralytics.utils.torch_utils.de_parallel

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## ::: ultralytics.utils.torch_utils.one_cycle

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## ::: ultralytics.utils.torch_utils.init_seeds

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## ::: ultralytics.utils.torch_utils.strip_optimizer

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## ::: ultralytics.utils.torch_utils.profile

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