Lightning-AI/pytorch-lightning

trainer.test() with given checkpoint logs last epoch instead of checkpoint epoch

Open

#20.052 geöffnet am 5. Juli 2024

Auf GitHub ansehen
 (1 Kommentar) (1 Reaktion) (0 zugewiesene Personen)Python (3.233 Forks)batch import
bughelp wantedrepro needed

Repository-Metriken

Stars
 (26.687 Stars)
PR-Merge-Metriken
 (Durchschn. Merge 9T 15h) (3 gemergte PRs in 30 T)

Beschreibung

Bug description

Testing from a given checkpoint leads to logging the epoch number of the last checkpoint instead of the checkpoint specified:

trainer = Trainer(..., max_epochs=10)
lightning_module = MyLightningModule(...)
datamodule = MyDatamodule()

trainer.fit(lightning_module , datamodule=datamodule)

trainer.test(lightning_module , datamodule=datamodule, ckpt_path="last")     # <-- ok: logs correct epoch and step
ckpt_path="/.../checkpoints/epoch=2-step=396.ckpt"
trainer.test(lightning_module , datamodule=datamodule, ckpt_path=ckpt_path)  # <-- incorrect: logs last epoch and step

The second test logs epoch 10 instead of epoch 2. Similarly, the step number of the second test is incorrect.

What version are you seeing the problem on?

v2.2.1

Contributor Guide