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Updated gan.py #74

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Merged
someshsingh22 merged 3 commits into from
Aug 30, 2021
Merged

Updated gan.py #74

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25a7502
Update gan.py
abhi-glitchhg Aug 30, 2021
bfe3e6b
Merge pull request #1 from abhi-glitchhg/abhi-glitchhg-gan
abhi-glitchhg Aug 30, 2021
d2312e8
Update gan.py
abhi-glitchhg Aug 30, 2021
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5 changes: 4 additions & 1 deletion code_soup/ch5/models/gan.py
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Original file line number Diff line number Diff line change
Expand Up @@ -169,13 +169,16 @@ def step(self, data: torch.Tensor) -> Tuple:
Discriminator loss
D_G_z2:
Average discriminator outputs for the all fake batch after updating discriminator
errG:
Generator loss
"""
real_image, _ = data
real_image = real_image.to(self.device)
batch_size = real_image.shape[0]
label = torch.full(
(batch_size,), self.real_label, dtype=torch.float, device=self.device
)
self.discriminator.zero_grad()
# Forward pass real batch through D
output = self.discriminator(real_image).view(-1)
# Calculate loss on all-real batch
Expand Down Expand Up @@ -211,4 +214,4 @@ def step(self, data: torch.Tensor) -> Tuple:
D_G_z2 = output.mean().item()
# Update G
self.generator.optimizer.step()
return D_x, D_G_z1, errD, D_G_z2
return D_x, D_G_z1, errD, D_G_z2, errG