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27 lines
760 B
Python
27 lines
760 B
Python
from torch.utils.tensorboard import SummaryWriter
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writer = None # TensorBoard SummaryWriter instance
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def _log_scalars(scalars, step=0):
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for k, v in scalars.items():
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writer.add_scalar(k, v, step)
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def on_train_start(trainer):
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global writer
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writer = SummaryWriter(str(trainer.save_dir))
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trainer.console.info(f"Logging results to {trainer.save_dir}\n"
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f"Starting training for {trainer.args.epochs} epochs...")
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def on_batch_end(trainer):
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_log_scalars(trainer.label_loss_items(trainer.tloss, prefix="train"), trainer.epoch)
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def on_val_end(trainer):
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_log_scalars(trainer.metrics, trainer.epoch)
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callbacks = {"on_train_start": on_train_start, "on_val_end": on_val_end, "on_batch_end": on_batch_end}
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