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Default validation #379

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Merged
vondele merged 1 commit into from
Dec 6, 2025
Merged

Default validation #379

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19 changes: 12 additions & 7 deletions train.py
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Original file line number Diff line number Diff line change
Expand Up @@ -75,12 +75,16 @@ def make_data_loaders(
batch_size=None,
batch_sampler=None,
)
val = DataLoader(
data_loader.FixedNumBatchesDataset(
val_infinite, (val_size + batch_size - 1) // batch_size
),
batch_size=None,
batch_sampler=None,
val = (
None
if val_size == 0
else DataLoader(
data_loader.FixedNumBatchesDataset(
val_infinite, (val_size + batch_size - 1) // batch_size
),
batch_size=None,
batch_sampler=None,
)
)
return train, val

Expand Down Expand Up @@ -308,7 +312,7 @@ def main():
parser.add_argument(
"--validation-size",
type=int,
default=1000000,
default=0,
dest="validation_size",
help="Number of positions per validation step.",
)
Expand Down Expand Up @@ -506,6 +510,7 @@ def main():
enable_progress_bar=True,
enable_checkpointing=True,
benchmark=True,
num_sanity_val_steps=0,
)

nnue = torch.compile(nnue, backend=args.compile_backend)
Expand Down