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Use VisualDL to visualize the training

Preface

VisualDL, a visualization analysis tool of PaddlePaddle, provides a variety of charts to show the trends of parameters, and visualizes model structures, data samples, histograms of tensors, PR curves , ROC curves and high-dimensional data distributions. It enables users to understand the training process and the model structure more clearly and intuitively so as to optimize models efficiently. For more information, please refer to VisualDL.

Use VisualDL in PaddleClas

Now PaddleClas support use VisualDL to visualize the changes of learning rate, loss, accuracy in training.

Set config and start training

You only need to set the vdl_dir field in train config:

# config.yaml
vdl_dir: "./vdl.log"

vdl_dir: Specify the directory where VisualDL stores logs.

Then normal start training:

python3 tools/train.py -c config.yaml

Start VisualDL

After starting the training program, you can start the VisualDL service in the new terminal session:

 visualdl --logdir ./vdl.log

In the above command, --logdir specify the logs directory. VisualDL will traverse and iterate to find the subdirectories of the specified directory to visualize all the experimental results. You can also use the following parameters to set the IP and port number of the VisualDL service:

  • --host：ip, default is 127.0.0.1
  • --port：port, default is 8040

More information about the command，please refer to VisualDL.

Then you can enter the address 127.0.0.1:8840 and view the training process in the browser: