Skip to content

Change SupervisedTrainer decollation default. #8542

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 4 commits into
base: dev
Choose a base branch
from
Open

Change SupervisedTrainer decollation default. #8542

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
cf51eed
Change SupervisedTrainer decollation default.
id-b3 Aug 19, 2025
acd8ceb
Updating tests for SupervisedTrainer default change.
id-b3 Aug 19, 2025
9b27973
Merge branch 'dev' into supervised-trainer-decollation-default-change
ericspod Aug 22, 2025
5829a81
Merge branch 'dev' into supervised-trainer-decollation-default-change
id-b3 Aug 26, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions monai/engines/trainer.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -120,7 +120,7 @@ class SupervisedTrainer(Trainer):
#ignite.engine.engine.Engine.register_events.
decollate: whether to decollate the batch-first data to a list of data after model computation,
recommend `decollate=True` when `postprocessing` uses components from `monai.transforms`.
default to `True`.
default to `False` as training slows due to tensor movement to CPU for decollation when enabled.
optim_set_to_none: when calling `optimizer.zero_grad()`, instead of setting to zero, set the grads to None.
more details: https://pytorch.org/docs/stable/generated/torch.optim.Optimizer.zero_grad.html.
to_kwargs: dict of other args for `prepare_batch` API when converting the input data, except for
Expand Down Expand Up @@ -154,7 +154,7 @@ def __init__(
amp: bool = False,
event_names: list[str | EventEnum | type[EventEnum]] | None = None,
event_to_attr: dict | None = None,
decollate: bool = True,
decollate: bool = False,
optim_set_to_none: bool = False,
to_kwargs: dict | None = None,
amp_kwargs: dict | None = None,
Expand Down
1 change: 1 addition & 0 deletions tests/apps/deepgrow/transforms/test_deepgrow_interaction.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -78,6 +78,7 @@ def run_interaction(self, train, compose):
optimizer=opt,
loss_function=loss,
iteration_update=i,
decollate=True,
)
engine.add_event_handler(IterationEvents.INNER_ITERATION_STARTED, add_one)
engine.add_event_handler(IterationEvents.INNER_ITERATION_COMPLETED, add_one)
Expand Down
1 change: 1 addition & 0 deletions tests/integration/test_deepedit_interaction.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -103,6 +103,7 @@ def run_interaction(self, train):
loss_function=loss,
postprocessing=post_transforms,
iteration_update=i,
decollate=True,
)
engine.add_event_handler(IterationEvents.INNER_ITERATION_STARTED, add_one)
engine.add_event_handler(IterationEvents.INNER_ITERATION_COMPLETED, add_one)
Expand Down
3 changes: 2 additions & 1 deletion tests/testing_data/config_fl_train.json
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -119,7 +119,8 @@
"loss_function": "@loss",
"optimizer": "@optimizer",
"inferer": "@train#inferer",
"train_handlers": "@train#handlers"
"train_handlers": "@train#handlers",
"decollate": true
}
},
"validate": {
Expand Down
Loading