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Removed unused dw tensor in Triton RMSNorm #567
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[ghstack-poisoned]
awgu
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Sep 2, 2024
ghstack-source-id: 146e0a951eb2329decf448d014a361cff2a800c5 Pull Request resolved: #567
[ghstack-poisoned]
awgu
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Sep 4, 2024
ghstack-source-id: c2337c6f976b41288498b7f3aa9b6f3d54d49ad9 Pull Request resolved: #567
awgu
commented
Sep 4, 2024
@@ -284,7 +284,6 @@ def backward(ctx, dy): | |||
|
|||
M, N = dy.shape | |||
dx = torch.empty_like(x) | |||
dw = torch.empty_like(weight) |
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unused, dw
is directly computed:
torchtitan/torchtitan/models/norms.py
Line 315 in b7754d6
dw = _dw.sum(0).to(weight.dtype) |
tianyu-l
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Sep 4, 2024
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looks good!
awgu
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Sep 4, 2024
ghstack-source-id: c2337c6f976b41288498b7f3aa9b6f3d54d49ad9 Pull Request resolved: #567
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