ultralytics / yolov5

YOLOv5 🚀 in PyTorch > ONNX > CoreML > TFLite
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multiprocessing error #12204

Closed ebrukilic61 closed 11 months ago

ebrukilic61 commented 1 year ago

Search before asking

YOLOv5 Component

No response

Bug

error yolov5

Environment

Windows 10 Python 3.9.7

Minimal Reproducible Example

No response

Additional

Transferred 475/481 items from yolov5m.pt Scaled weight_decay = 0.0005 optimizer: SGD with parameter groups 79 weight (no decay), 82 weight, 82 bias train: Scanning 'E:\eva_dataset_2022\train\labels' images and labels...18437 found, 0 missing, 10 empty, 0 corrupt: 100 train: WARNING: Cache directory E:\eva_dataset_2022\train is not writeable: [WinError 183] Cannot create a file when that file already exists: 'E:\eva_dataset_2022\train\labels.cache.npy' -> 'E:\eva_dataset_2022\train\labels.cache' train: Caching images (6.9GB ram): 100%|██████████| 18437/18437 [00:15<00:00, 1174.44it/s] val: Scanning 'E:\eva_dataset_2022\valid\labels' images and labels...3964 found, 0 missing, 0 empty, 0 corrupt: 100%|██ val: WARNING: Cache directory E:\eva_dataset_2022\valid is not writeable: [WinError 183] Cannot create a file when that file already exists: 'E:\eva_dataset_2022\valid\labels.cache.npy' -> 'E:\eva_dataset_2022\valid\labels.cache' val: Caching images (1.4GB ram): 100%|██████████| 3964/3964 [00:05<00:00, 708.93it/s] Traceback (most recent call last): File "", line 1, in File "C:\Users\EVA\AppData\Local\Programs\Python\Python39\lib\multiprocessing\spawn.py", line 116, in spawn_main exitcode = _main(fd, parent_sentinel) File "C:\Users\EVA\AppData\Local\Programs\Python\Python39\lib\multiprocessing\spawn.py", line 126, in _main self = reduction.pickle.load(from_parent) MemoryError


It gives me this error, I don't understand the reason of this error, could you help me please about it?

Are you willing to submit a PR?

github-actions[bot] commented 1 year ago

👋 Hello @ebrukilic61, thank you for your interest in YOLOv5 🚀! Please visit our ⭐️ Tutorials to get started, where you can find quickstart guides for simple tasks like Custom Data Training all the way to advanced concepts like Hyperparameter Evolution.

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Requirements

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glenn-jocher commented 1 year ago

@ebrukilic61 this error typically occurs when there is insufficient memory available for the multiprocessing module to spawn new processes. It seems to be happening during the caching process in your case.

You can try a few things to resolve this issue:

  1. Reduce the amount of memory used during caching by reducing the batch size or image size.
  2. Free up system memory by closing any unnecessary applications or processes running in the background.
  3. Increase the amount of available memory by upgrading your hardware or using a machine with more RAM.

Bear in mind that the multiprocessing module heavily relies on system resources, so ensuring you have enough memory is crucial.

If the issue persists or you need further assistance, please feel free to ask.

github-actions[bot] commented 1 year ago

👋 Hello there! We wanted to give you a friendly reminder that this issue has not had any recent activity and may be closed soon, but don't worry - you can always reopen it if needed. If you still have any questions or concerns, please feel free to let us know how we can help.

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