Help Center/ ModelArts/ Troubleshooting/ Training Jobs/ Service Code Issues/ Error Message "CUDNN_STATUS_NOT_SUPPORTED" Is Displayed in Logs
Updated on 2025-06-06 GMT+08:00

Error Message "CUDNN_STATUS_NOT_SUPPORTED" Is Displayed in Logs

Symptom

During PyTorch training, you encounter the following error message:
RuntimeError: cuDNN error: CUDNN_STATUS_NOT_SUPPORTED. This error may appear if you passed in a non-contiguous input.

Possible Causes

cuDNN does not support non-contiguous input data.

Solution

  1. Disable cuDNN before training:
    torch.backends.cudnn.enabled = False
  2. Convert the input data into contiguous format:
    images = images.cuda()  
    images = images.permute(0, 3, 1, 2).contigous()

Summary and Suggestions

Before creating a training job, use the ModelArts development environment to debug your training code and minimize migration errors.