{
  "id": 409334,
  "title": "Some problems in training",
  "url": "/competitions/birdclef-2023/discussion/409334",
  "author_name": "",
  "post_date": "2023-05-10T15:47:57.963414800Z",
  "votes": null,
  "comment_count": 2,
  "views": 0,
  "content": "<p>I used a variety of data enhancement methods to pre-train 5 epochs on 20~22 data, and then fine-tuned on the 23-year data set. The final submission score was only 0.73. Why? Is it because there are too few epochs for pre-training? Because I submitted a Pretrain: 2 epoch, train: 30 epoch, the submission score is 0.72 and I found that the data and the model are on the GPU during training, but the GPU occupancy rate is always 0, I don’t know why it appears This kind of problem?<br>\n<img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2Fa5028abad38327557612c7c3f7b52783%2FQQ20230510234152.jpg?generation=1683733591270794&amp;alt=media\" alt=\"\"><br>\n<img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2Fcf933d1d118e12a2aa92c968d6e7bcd6%2F_20230510234456.png?generation=1683733630707017&amp;alt=media\" alt=\"\"><br>\n<img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2F5a85eac5520d1a0ff2c9ddc36473162e%2FQQ20230510234607.png?generation=1683733643434796&amp;alt=media\" alt=\"\"></p>",
  "messages": [
    {
      "id": "2254024",
      "postDate": "05/10/2023 15:47:57",
      "content": "<p>I used a variety of data enhancement methods to pre-train 5 epochs on 20~22 data, and then fine-tuned on the 23-year data set. The final submission score was only 0.73. Why? Is it because there are too few epochs for pre-training? Because I submitted a Pretrain: 2 epoch, train: 30 epoch, the submission score is 0.72 and I found that the data and the model are on the GPU during training, but the GPU occupancy rate is always 0, I don’t know why it appears This kind of problem?<br>\n<img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2Fa5028abad38327557612c7c3f7b52783%2FQQ20230510234152.jpg?generation=1683733591270794&amp;alt=media\" alt=\"\"><br>\n<img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2Fcf933d1d118e12a2aa92c968d6e7bcd6%2F_20230510234456.png?generation=1683733630707017&amp;alt=media\" alt=\"\"><br>\n<img src=\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2F5a85eac5520d1a0ff2c9ddc36473162e%2FQQ20230510234607.png?generation=1683733643434796&amp;alt=media\" alt=\"\"></p>",
      "rawMarkdown": "I used a variety of data enhancement methods to pre-train 5 epochs on 20~22 data, and then fine-tuned on the 23-year data set. The final submission score was only 0.73. Why? Is it because there are too few epochs for pre-training? Because I submitted a Pretrain: 2 epoch, train: 30 epoch, the submission score is 0.72 and I found that the data and the model are on the GPU during training, but the GPU occupancy rate is always 0, I don’t know why it appears This kind of problem?\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2Fa5028abad38327557612c7c3f7b52783%2FQQ20230510234152.jpg?generation=1683733591270794&alt=media)\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2Fcf933d1d118e12a2aa92c968d6e7bcd6%2F_20230510234456.png?generation=1683733630707017&alt=media)\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2F5a85eac5520d1a0ff2c9ddc36473162e%2FQQ20230510234607.png?generation=1683733643434796&alt=media)",
      "votes": null
    },
    {
      "id": "2254737",
      "postDate": "05/11/2023 07:34:20",
      "content": "<p>How do you create your input data? If you're using mel-spectrograms generally the bottleneck comes from loading the data and doing the transformation on CPU. If this is the case (which was for me) you can pre-transform the dataset and save it to the disk once and use it later on. This way I reduced the training time to 20-30 mins for single fold from 6 hours 👀. </p>\n<p>Or you can do the transformation on GPU. <a href=\"https://github.com/pytorch/audio\" target=\"_blank\">torchaudio</a> library might be handy for you. </p>",
      "rawMarkdown": "How do you create your input data? If you're using mel-spectrograms generally the bottleneck comes from loading the data and doing the transformation on CPU. If this is the case (which was for me) you can pre-transform the dataset and save it to the disk once and use it later on. This way I reduced the training time to 20-30 mins for single fold from 6 hours 👀. \n\nOr you can do the transformation on GPU. [torchaudio](https://github.com/pytorch/audio) library might be handy for you.",
      "votes": null
    },
    {
      "id": "2257252",
      "postDate": "05/13/2023 07:17:04",
      "content": "<p>Thank you for your answer. I use torchaudio to load audio data in Dataset and convert it to mel-spectrograms. In the model, I perform data enhancement on pictures.</p>",
      "rawMarkdown": "Thank you for your answer. I use torchaudio to load audio data in Dataset and convert it to mel-spectrograms. In the model, I perform data enhancement on pictures.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 2254737,
      "author_name": "snnclsr",
      "author_url": "",
      "post_date": "05/11/2023 07:34:20",
      "content": "<p>How do you create your input data? If you're using mel-spectrograms generally the bottleneck comes from loading the data and doing the transformation on CPU. If this is the case (which was for me) you can pre-transform the dataset and save it to the disk once and use it later on. This way I reduced the training time to 20-30 mins for single fold from 6 hours 👀. </p>\n<p>Or you can do the transformation on GPU. <a href=\"https://github.com/pytorch/audio\" target=\"_blank\">torchaudio</a> library might be handy for you. </p>",
      "votes": null,
      "replies": [
        {
          "id": 2257252,
          "author_name": "gentlezdh",
          "author_url": "",
          "post_date": "05/13/2023 07:17:04",
          "content": "<p>Thank you for your answer. I use torchaudio to load audio data in Dataset and convert it to mel-spectrograms. In the model, I perform data enhancement on pictures.</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "2254024": "I used a variety of data enhancement methods to pre-train 5 epochs on 20~22 data, and then fine-tuned on the 23-year data set. The final submission score was only 0.73. Why? Is it because there are too few epochs for pre-training? Because I submitted a Pretrain: 2 epoch, train: 30 epoch, the submission score is 0.72 and I found that the data and the model are on the GPU during training, but the GPU occupancy rate is always 0, I don’t know why it appears This kind of problem?\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2Fa5028abad38327557612c7c3f7b52783%2FQQ20230510234152.jpg?generation=1683733591270794&alt=media)\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2Fcf933d1d118e12a2aa92c968d6e7bcd6%2F_20230510234456.png?generation=1683733630707017&alt=media)\n![](https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F10435646%2F5a85eac5520d1a0ff2c9ddc36473162e%2FQQ20230510234607.png?generation=1683733643434796&alt=media)",
    "2254737": "How do you create your input data? If you're using mel-spectrograms generally the bottleneck comes from loading the data and doing the transformation on CPU. If this is the case (which was for me) you can pre-transform the dataset and save it to the disk once and use it later on. This way I reduced the training time to 20-30 mins for single fold from 6 hours 👀. \n\nOr you can do the transformation on GPU. [torchaudio](https://github.com/pytorch/audio) library might be handy for you.",
    "2257252": "Thank you for your answer. I use torchaudio to load audio data in Dataset and convert it to mel-spectrograms. In the model, I perform data enhancement on pictures."
  },
  "source": "meta"
}