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Merge pull request #2143 from huggingface/fix_asymm_set_grad_enable

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Fix #2132, remove use of _C.set_grad_enable. Line endings were messed up too
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Ross Wightman 2024-04-09 10:14:13 -07:00 committed by GitHub
commit f5ea076a46
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1 changed files with 97 additions and 97 deletions
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timm/loss/asymmetric_loss.py
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@ -37,14 +37,14 @@ class AsymmetricLossMultiLabel(nn.Module):
# Asymmetric Focusing
if self.gamma_neg > 0 or self.gamma_pos > 0:
if self.disable_torch_grad_focal_loss:
torch._C.set_grad_enabled(False)
torch.set_grad_enabled(False)
pt0 = xs_pos * y
pt1 = xs_neg * (1 - y) # pt = p if t > 0 else 1-p
pt = pt0 + pt1
one_sided_gamma = self.gamma_pos * y + self.gamma_neg * (1 - y)
one_sided_w = torch.pow(1 - pt, one_sided_gamma)
if self.disable_torch_grad_focal_loss:
torch._C.set_grad_enabled(True)
torch.set_grad_enabled(True)
loss *= one_sided_w
return -loss.sum()