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Set sampler in DDP example

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Sebastian Raschka 2024-10-21 09:26:01 -05:00 committed by GitHub
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appendix-A/01_main-chapter-code/DDP-script.py
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@ -133,6 +133,8 @@ def main(rank, world_size, num_epochs):
# the core model is now accessible as model.module
for epoch in range(num_epochs):
# NEW: Set sampler to ensure each epoch has a different shuffle order
train_loader.sampler.set_epoch(epoch)
model.train()
for features, labels in train_loader: