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[core] improve VAE encode/decode framewise batching #9684

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Merged
merged 4 commits into from
Oct 16, 2024
Merged

[core] improve VAE encode/decode framewise batching #9684

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9b76a78
update
a-r-r-o-w Oct 15, 2024
7a0f667
Merge branch 'main' into cog-vae-num-batches
sayakpaul Oct 16, 2024
8d9f7da
apply suggestions from review
a-r-r-o-w Oct 16, 2024
4bb567c
Merge branch 'main' into cog-vae-num-batches
a-r-r-o-w Oct 16, 2024
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8 changes: 5 additions & 3 deletions src/diffusers/models/autoencoders/autoencoder_kl_cogvideox.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1182,7 +1182,8 @@ def _encode(self, x: torch.Tensor) -> torch.Tensor:

frame_batch_size = self.num_sample_frames_batch_size
# Note: We expect the number of frames to be either `1` or `frame_batch_size * k` or `frame_batch_size * k + 1` for some k.
num_batches = num_frames // frame_batch_size if num_frames > 1 else 1
# As the extra single frame is handled inside the loop, it is not required to round up here.
num_batches = max(num_frames // frame_batch_size, 1)
conv_cache = None
enc = []

Expand Down Expand Up @@ -1330,7 +1331,8 @@ def tiled_encode(self, x: torch.Tensor) -> torch.Tensor:
row = []
for j in range(0, width, overlap_width):
# Note: We expect the number of frames to be either `1` or `frame_batch_size * k` or `frame_batch_size * k + 1` for some k.
num_batches = num_frames // frame_batch_size if num_frames > 1 else 1
# As the extra single frame is handled inside the loop, it is not required to round up here.
num_batches = max(num_frames // frame_batch_size, 1)
conv_cache = None
time = []

Expand Down Expand Up @@ -1409,7 +1411,7 @@ def tiled_decode(self, z: torch.Tensor, return_dict: bool = True) -> Union[Decod
for i in range(0, height, overlap_height):
row = []
for j in range(0, width, overlap_width):
num_batches = num_frames // frame_batch_size
num_batches = max(num_frames // frame_batch_size, 1)
conv_cache = None
time = []

Expand Down
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