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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 field Global.use_visualdl to True in train config:

# config.yaml
Global:
...
  use_visualdl: True
...

PaddleClas will save the VisualDL logs to subdirectory vdl/ under the output directory specified by Global.output_dir. And then you just need to start training normally:

python3 tools/train.py -c config.yaml

Start VisualDL

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

 visualdl --logdir ./output/vdl/

In the above command, --logdir specify the directory of the VisualDL logs produced in training. 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: