Lightning-AI/pytorch-lightning

Support all iterator modes for fit/validate/test/predict

Open

#16.830 geöffnet am 21. Feb. 2023

Auf GitHub ansehen
 (15 Kommentare) (6 Reaktionen) (0 zugewiesene Personen)Python (3.233 Forks)batch import
data handlingfeaturehelp wantedpl

Repository-Metriken

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

Beschreibung

Description & Motivation

trainer.fit only works with CombinedLoader(..., mode="max_size_cycle"|"min_size")

trainer.{validate,test,predict} only works with CombinedLoader(..., mode="sequential")

This constraint is checked in the top-level loops: https://github.com/Lightning-AI/lightning/blob/0009cde1db1a9ab4e2f1e0a9f69a4affb59d5134/src/lightning/pytorch/loops/fit_loop.py#L351-L354 https://github.com/Lightning-AI/lightning/blob/0009cde1db1a9ab4e2f1e0a9f69a4affb59d5134/src/lightning/pytorch/loops/evaluation_loop.py#L182-L183

Pitch

Have all trainer functions support all modes

TODO:

  • FitLoop
  • EvaluationLoop (#17163)
  • PredictionLoop

Alternatives

Not do it

Additional context

This builds on top of https://github.com/Lightning-AI/lightning/pull/16726

cc @borda @justusschock @awaelchli

Contributor Guide