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Move model to cuda before creating optimizer #554

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Nov 27, 2019
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Move model to cuda before creating optimizer #554

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4 changes: 2 additions & 2 deletions pytorch_lightning/trainer/dp_mixin.py
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Original file line number Diff line number Diff line change
Expand Up @@ -63,12 +63,12 @@ def transfer_batch_to_gpu(self, batch, gpu_id):
return batch

def single_gpu_train(self, model):
model.cuda(self.root_gpu)

# CHOOSE OPTIMIZER
# allow for lr schedulers as well
self.optimizers, self.lr_schedulers = self.init_optimizers(model.configure_optimizers())

model.cuda(self.root_gpu)

if self.use_amp:
# An example
model, optimizers = model.configure_apex(amp, model, self.optimizers, self.amp_level)
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