---
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

    Full source code for 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). Help us fix any issues you see by submitting a [Pull Request](https://docs.ultralytics.com/help/contributing/) 🛠️. 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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