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added single gpu train test

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William Falcon
2019-08-07 13:53:44 -04:00
parent 56f16694c4
commit ab499573a1
1 changed files with 6 additions and 2 deletions
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pytorch_lightning/models/trainer.py
+6 -2
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@@ -394,7 +394,9 @@ class Trainer(TrainerIO):
elif self.single_gpu:
gpu_id = self.data_parallel_device_ids[0]
data_batch = [x.cuda(gpu_id) for x in data_batch if isinstance(x, torch.Tensor)]
for i, x in enumerate(data_batch):
if isinstance(x, torch.Tensor):
data_batch[i] = x.cuda(gpu_id)
output = model.validation_step(data_batch, batch_i)
else:
@@ -849,7 +851,9 @@ We recommend you switch to ddp if you want to use amp
output = reduce_distributed_output(output, len(self.data_parallel_device_ids))
elif self.single_gpu:
gpu_id = self.data_parallel_device_ids[0]
data_batch = [x.cuda(gpu_id) for x in data_batch if isinstance(x, torch.Tensor)]
for i, x in enumerate(data_batch):
if isinstance(x, torch.Tensor):
data_batch[i] = x.cuda(gpu_id)
output = self.model.training_step(data_batch.cuda(self.data_parallel_device_ids[0]), batch_nb)
else: