ComfyUI/comfy/ldm/lightricks/vae
codeflash-ai[bot] 2ff056431d
️ Speed up method PixelNorm.forward by 7%
To optimize the runtime of this program, we can leverage some of PyTorch's functions for better performance. Specifically, we can use `torch.rsqrt` and `torch.mean` wisely to optimize the normalization calculation. This can be beneficial from a performance perspective since certain operations might be optimized internally.

Here is an optimized version of the code.



### Explanation.
- `torch.mean(x * x, dim=self.dim, keepdim=True)`: Calculating the mean of the squared values directly.
- `torch.rsqrt(mean_square)`: Using `torch.rsqrt` to compute the reciprocal of the square root. This can be more efficient than computing the square root and then taking the reciprocal separately.
- `x * torch.rsqrt(mean_square)`: Multiplying `x` by the reciprocal square root we computed above.

This reformulation can lead to improved performance because it reduces the number of operations by specifically leveraging PyTorch's optimized backend operations.
2025-04-15 22:19:03 +00:00
..
causal_conv3d.py Support LTXV 0.9.5. 2025-03-05 00:13:49 -05:00
causal_video_autoencoder.py Fix lowvram issue with ltxv vae. 2025-03-05 05:26:08 -05:00
conv_nd_factory.py Support LTXV 0.9.5. 2025-03-05 00:13:49 -05:00
dual_conv3d.py Support LTXV 0.9.5. 2025-03-05 00:13:49 -05:00
pixel_norm.py ️ Speed up method PixelNorm.forward by 7% 2025-04-15 22:19:03 +00:00