VictorMylle/Kohya-ss-sd-scripts
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fix

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gesen2egee
2024-03-13 17:54:21 +08:00
parent a6c41c6bea
commit bd7e2295b7
1 changed files with 9 additions and 29 deletions
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34
train_network.py
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@@ -981,20 +981,19 @@ class NetworkTrainer:
logs = self.generate_step_logs(args, current_loss, avr_loss, lr_scheduler, keys_scaled, mean_norm, maximum_norm)
accelerator.log(logs, step=global_step)
if args.validation_every_n_step is not None:
if global_step % (args.validation_every_n_step) == 0:
if len(val_dataloader) > 0:
if (args.validation_every_n_step is not None and global_step % args.validation_every_n_step == 0) or step == len(train_dataloader) - 1 or global_step >= args.max_train_steps:
print(f"\nValidating バリデーション処理...")
total_loss = 0.0
with torch.no_grad():
validation_steps = min(args.validation_batches, len(val_dataloader)) if args.validation_batches is not None else len(val_dataloader)
validation_steps = min(args.max_validation_steps, len(val_dataloader)) if args.max_validation_steps is not None else len(val_dataloader)
for val_step in tqdm(range(validation_steps), desc='Validation Steps'):
is_train = False
batch = next(cyclic_val_dataloader)
loss = self.process_val_batch(batch, is_train, tokenizers, text_encoders, unet, vae, noise_scheduler, vae_dtype, weight_dtype, accelerator, args)
total_loss += loss.detach().item()
current_loss = total_loss / args.validation_batches
val_loss_recorder.add(epoch=epoch, step=global_step, loss=current_loss)
current_loss = total_loss / validation_steps
val_loss_recorder.add(epoch=epoch, step=step, loss=current_loss)
if args.logging_dir is not None:
logs = {"loss/current_val_loss": current_loss}
@@ -1010,25 +1009,6 @@ class NetworkTrainer:
logs = {"loss/epoch_average": loss_recorder.moving_average}
accelerator.log(logs, step=epoch + 1)
if args.validation_every_n_step is None:
if len(val_dataloader) > 0:
print(f"\nValidating バリデーション処理...")
total_loss = 0.0
with torch.no_grad():
validation_steps = min(args.validation_batches, len(val_dataloader)) if args.validation_batches is not None else len(val_dataloader)
for val_step in tqdm(range(validation_steps), desc='Validation Steps'):
is_train = False
batch = next(cyclic_val_dataloader)
loss = self.process_val_batch(batch, is_train, tokenizers, text_encoders, unet, vae, noise_scheduler, vae_dtype, weight_dtype, accelerator, args)
total_loss += loss.detach().item()
current_loss = total_loss / args.validation_batches
val_loss_recorder.add(epoch=epoch, step=global_step, loss=current_loss)
if args.logging_dir is not None:
avr_loss: float = val_loss_recorder.moving_average
logs = {"loss/epoch_val_average": avr_loss}
accelerator.log(logs, step=epoch + 1)
accelerator.wait_for_everyone()
# 指定エポックごとにモデルを保存
@@ -1184,13 +1164,13 @@ def setup_parser() -> argparse.ArgumentParser:
"--validation_every_n_step",
type=int,
default=None,
help="Number of steps for counting validation loss. By default, validation per epoch is performed"
help="Number of train steps for counting validation loss. By default, validation per train epoch is performed"
)
parser.add_argument(
"--validation_batches",
"--max_validation_steps",
type=int,
default=None,
help="Number of val steps for counting validation loss. By default, validation for all val_dataset is performed"
help="Number of max validation steps for counting validation loss. By default, validation will run entire validation dataset"
)
return parser