Instructions to use BiliSakura/IntrisicWeather-diffusers with libraries, inference providers, notebooks, and local apps. Follow these links to get started.
- Libraries
- Diffusers
How to use BiliSakura/IntrisicWeather-diffusers with Diffusers:
pip install -U diffusers transformers accelerate
import torch from diffusers import DiffusionPipeline # switch to "mps" for apple devices pipe = DiffusionPipeline.from_pretrained("BiliSakura/IntrisicWeather-diffusers", dtype=torch.bfloat16, device_map="cuda") prompt = "Astronaut in a jungle, cold color palette, muted colors, detailed, 8k" image = pipe(prompt).images[0] - Notebooks
- Google Colab
- Kaggle
Upload folder using huggingface_hub
Browse files- __pycache__/pipeline_utils.cpython-312.pyc +0 -0
- convert_inverse_renderer_1024.py +115 -0
- imaa/__pycache__/imaa.cpython-312.pyc +0 -0
- imaa/imaa.py +1 -1
- transformer/inverse-1024/__pycache__/transformer_intrinsic_weather.cpython-312.pyc +0 -0
- transformer/inverse-1024/config.json +31 -0
- transformer/inverse-1024/diffusion_pytorch_model.safetensors +3 -0
- transformer/inverse-1024/transformer_intrinsic_weather.py +1527 -0
__pycache__/pipeline_utils.cpython-312.pyc
ADDED
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Binary file (5.07 kB). View file
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convert_inverse_renderer_1024.py
ADDED
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| 1 |
+
#!/usr/bin/env python3
|
| 2 |
+
"""Convert GilgameshYX InverseRenderer-1024 into BiliSakura IntrisicWeather-diffusers layout."""
|
| 3 |
+
|
| 4 |
+
from __future__ import annotations
|
| 5 |
+
|
| 6 |
+
import json
|
| 7 |
+
import shutil
|
| 8 |
+
import sys
|
| 9 |
+
from pathlib import Path
|
| 10 |
+
|
| 11 |
+
from diffusers.models.transformers import SD3Transformer2DModel
|
| 12 |
+
|
| 13 |
+
COLLECTION_ROOT = Path(__file__).resolve().parent
|
| 14 |
+
INTRINSIC_REPO = Path("/data/projects/IntrinsicWeather-diffusers")
|
| 15 |
+
sys.path.insert(0, str(INTRINSIC_REPO / "src"))
|
| 16 |
+
sys.path.insert(0, str(INTRINSIC_REPO))
|
| 17 |
+
|
| 18 |
+
from intrinsic_weather.models.transformers.transformer_intrinsic_weather import ( # noqa: E402
|
| 19 |
+
IntrinsicWeatherSD3Transformer2DModel,
|
| 20 |
+
)
|
| 21 |
+
from scripts._conversion_utils import ( # noqa: E402
|
| 22 |
+
ROOT as REPO_ROOT,
|
| 23 |
+
expand_sd3_input_projection,
|
| 24 |
+
merge_sharded_state_dict,
|
| 25 |
+
save_imaa_bundle,
|
| 26 |
+
write_scheduler_config,
|
| 27 |
+
)
|
| 28 |
+
|
| 29 |
+
SD3_PATH = Path(
|
| 30 |
+
"/data/projects/Visual-Generative-Foundation-Model-Collection/models/stabilityai/stable-diffusion-3-medium-diffusers"
|
| 31 |
+
)
|
| 32 |
+
SD35_TRANSFORMER_REPO = "stabilityai/stable-diffusion-3.5-medium"
|
| 33 |
+
CKPT_PATH = Path(
|
| 34 |
+
"/data/projects/Visual-Generative-Foundation-Model-Collection/models/GilgameshYX/InverseRenderer-1024"
|
| 35 |
+
)
|
| 36 |
+
OUTPUT_ROOT = COLLECTION_ROOT
|
| 37 |
+
TRANSFORMER_VARIANT = "inverse-1024"
|
| 38 |
+
SHARED_COMPONENTS = (
|
| 39 |
+
"text_encoder",
|
| 40 |
+
"text_encoder_2",
|
| 41 |
+
"text_encoder_3",
|
| 42 |
+
"tokenizer",
|
| 43 |
+
"tokenizer_2",
|
| 44 |
+
"tokenizer_3",
|
| 45 |
+
"vae",
|
| 46 |
+
"scheduler",
|
| 47 |
+
)
|
| 48 |
+
|
| 49 |
+
|
| 50 |
+
def copy_sd3_shared_components(sd3_path: Path, output_path: Path) -> None:
|
| 51 |
+
for name in SHARED_COMPONENTS:
|
| 52 |
+
src = sd3_path / name
|
| 53 |
+
dst = output_path / name
|
| 54 |
+
if dst.exists():
|
| 55 |
+
print(f"Skipping existing shared component: {dst}")
|
| 56 |
+
continue
|
| 57 |
+
print(f"Copying {name} ...")
|
| 58 |
+
shutil.copytree(src, dst)
|
| 59 |
+
|
| 60 |
+
|
| 61 |
+
def main() -> None:
|
| 62 |
+
transformer_dir = OUTPUT_ROOT / "transformer" / TRANSFORMER_VARIANT
|
| 63 |
+
transformer_dir.mkdir(parents=True, exist_ok=True)
|
| 64 |
+
|
| 65 |
+
print(f"Ensuring shared SD3 components from {SD3_PATH} ...")
|
| 66 |
+
copy_sd3_shared_components(SD3_PATH, OUTPUT_ROOT)
|
| 67 |
+
write_scheduler_config(OUTPUT_ROOT)
|
| 68 |
+
|
| 69 |
+
print("Converting inverse renderer transformer (1024) ...")
|
| 70 |
+
base_transformer = SD3Transformer2DModel.from_config(
|
| 71 |
+
SD3Transformer2DModel.load_config(SD35_TRANSFORMER_REPO, subfolder="transformer")
|
| 72 |
+
)
|
| 73 |
+
base_transformer = expand_sd3_input_projection(base_transformer, in_channels=32)
|
| 74 |
+
custom_blocks = IntrinsicWeatherSD3Transformer2DModel.from_config(base_transformer.config)
|
| 75 |
+
custom_blocks.load_state_dict(
|
| 76 |
+
merge_sharded_state_dict(
|
| 77 |
+
[
|
| 78 |
+
CKPT_PATH / "pytorch_model-00001-of-00002.bin",
|
| 79 |
+
CKPT_PATH / "pytorch_model-00002-of-00002.bin",
|
| 80 |
+
]
|
| 81 |
+
),
|
| 82 |
+
strict=True,
|
| 83 |
+
)
|
| 84 |
+
custom_blocks.save_pretrained(transformer_dir.as_posix(), safe_serialization=True)
|
| 85 |
+
shutil.copy2(
|
| 86 |
+
REPO_ROOT / "src" / "intrinsic_weather" / "models" / "transformers" / "transformer_intrinsic_weather.py",
|
| 87 |
+
transformer_dir / "transformer_intrinsic_weather.py",
|
| 88 |
+
)
|
| 89 |
+
|
| 90 |
+
print("Saving IMAA weights from InverseRenderer-1024 ...")
|
| 91 |
+
save_imaa_bundle(CKPT_PATH / "imaa.pth", OUTPUT_ROOT, safe_serialization=True)
|
| 92 |
+
|
| 93 |
+
conversion_metadata = {
|
| 94 |
+
"task": "inverse_renderer",
|
| 95 |
+
"resolution": 1024,
|
| 96 |
+
"transformer_variant": TRANSFORMER_VARIANT,
|
| 97 |
+
"source_transformer_checkpoints": [
|
| 98 |
+
str((CKPT_PATH / "pytorch_model-00001-of-00002.bin").resolve()),
|
| 99 |
+
str((CKPT_PATH / "pytorch_model-00002-of-00002.bin").resolve()),
|
| 100 |
+
],
|
| 101 |
+
"source_imaa_checkpoint": str((CKPT_PATH / "imaa.pth").resolve()),
|
| 102 |
+
"sd3_path": str(SD3_PATH.resolve()),
|
| 103 |
+
"sd35_transformer_repo": SD35_TRANSFORMER_REPO,
|
| 104 |
+
"in_channels": 32,
|
| 105 |
+
}
|
| 106 |
+
(OUTPUT_ROOT / "conversion_metadata_inverse_1024.json").write_text(
|
| 107 |
+
json.dumps(conversion_metadata, indent=2) + "\n",
|
| 108 |
+
encoding="utf-8",
|
| 109 |
+
)
|
| 110 |
+
print(f"Saved transformer to: {transformer_dir}")
|
| 111 |
+
print("Load with: load_inverse_pipeline(transformer_subfolder='inverse-1024')")
|
| 112 |
+
|
| 113 |
+
|
| 114 |
+
if __name__ == "__main__":
|
| 115 |
+
main()
|
imaa/__pycache__/imaa.cpython-312.pyc
ADDED
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Binary file (10.5 kB). View file
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imaa/imaa.py
CHANGED
|
@@ -46,7 +46,7 @@ def extract_patch_tokens_min_windows(
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|
| 46 |
token_avgs = []
|
| 47 |
|
| 48 |
for batch_idx in range(batch_size):
|
| 49 |
-
image = images[batch_idx]
|
| 50 |
if image.max() <= 1.0:
|
| 51 |
image_np = (image.permute(1, 2, 0).cpu().numpy() * 255).clip(0, 255).astype("uint8")
|
| 52 |
else:
|
|
|
|
| 46 |
token_avgs = []
|
| 47 |
|
| 48 |
for batch_idx in range(batch_size):
|
| 49 |
+
image = images[batch_idx]
|
| 50 |
if image.max() <= 1.0:
|
| 51 |
image_np = (image.permute(1, 2, 0).cpu().numpy() * 255).clip(0, 255).astype("uint8")
|
| 52 |
else:
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transformer/inverse-1024/__pycache__/transformer_intrinsic_weather.cpython-312.pyc
ADDED
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Binary file (55.8 kB). View file
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transformer/inverse-1024/config.json
ADDED
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@@ -0,0 +1,31 @@
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| 1 |
+
{
|
| 2 |
+
"_class_name": "IntrinsicWeatherSD3Transformer2DModel",
|
| 3 |
+
"_diffusers_version": "0.38.0",
|
| 4 |
+
"attention_head_dim": 64,
|
| 5 |
+
"caption_projection_dim": 1536,
|
| 6 |
+
"dual_attention_layers": [
|
| 7 |
+
0,
|
| 8 |
+
1,
|
| 9 |
+
2,
|
| 10 |
+
3,
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| 11 |
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4,
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| 12 |
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5,
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| 13 |
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6,
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| 14 |
+
7,
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| 15 |
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8,
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| 16 |
+
9,
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| 17 |
+
10,
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| 18 |
+
11,
|
| 19 |
+
12
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| 20 |
+
],
|
| 21 |
+
"in_channels": 32,
|
| 22 |
+
"joint_attention_dim": 4096,
|
| 23 |
+
"num_attention_heads": 24,
|
| 24 |
+
"num_layers": 24,
|
| 25 |
+
"out_channels": 16,
|
| 26 |
+
"patch_size": 2,
|
| 27 |
+
"pooled_projection_dim": 2048,
|
| 28 |
+
"pos_embed_max_size": 384,
|
| 29 |
+
"qk_norm": "rms_norm",
|
| 30 |
+
"sample_size": 128
|
| 31 |
+
}
|
transformer/inverse-1024/diffusion_pytorch_model.safetensors
ADDED
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@@ -0,0 +1,3 @@
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| 1 |
+
version https://git-lfs.github.com/spec/v1
|
| 2 |
+
oid sha256:e588327aee089a32caf775fb28437c0e544f5b9b9fec52feb1cf5a9ad26acb01
|
| 3 |
+
size 9879154080
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transformer/inverse-1024/transformer_intrinsic_weather.py
ADDED
|
@@ -0,0 +1,1527 @@
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|
| 1 |
+
# Copyright 2024 Stability AI, The HuggingFace Team and The InstantX Team. All rights reserved.
|
| 2 |
+
#
|
| 3 |
+
# Licensed under the Apache License, Version 2.0 (the "License");
|
| 4 |
+
# you may not use this file except in compliance with the License.
|
| 5 |
+
# You may obtain a copy of the License at
|
| 6 |
+
#
|
| 7 |
+
# http://www.apache.org/licenses/LICENSE-2.0
|
| 8 |
+
#
|
| 9 |
+
# Unless required by applicable law or agreed to in writing, software
|
| 10 |
+
# distributed under the License is distributed on an "AS IS" BASIS,
|
| 11 |
+
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| 12 |
+
# See the License for the specific language governing permissions and
|
| 13 |
+
# limitations under the License.
|
| 14 |
+
from __future__ import annotations
|
| 15 |
+
|
| 16 |
+
import inspect
|
| 17 |
+
from typing import Any, Callable, Dict, List, Optional, Tuple, Union
|
| 18 |
+
|
| 19 |
+
import numpy as np
|
| 20 |
+
import torch
|
| 21 |
+
import torch.nn as nn
|
| 22 |
+
import torch.nn.functional as F
|
| 23 |
+
from torch import nn as torch_nn
|
| 24 |
+
|
| 25 |
+
from diffusers.configuration_utils import ConfigMixin, register_to_config
|
| 26 |
+
from diffusers.loaders import FromOriginalModelMixin, PeftAdapterMixin, SD3Transformer2DLoadersMixin
|
| 27 |
+
from diffusers.models.attention import FeedForward, JointTransformerBlock, _chunked_feed_forward
|
| 28 |
+
from diffusers.models.attention_processor import (
|
| 29 |
+
Attention,
|
| 30 |
+
AttentionProcessor,
|
| 31 |
+
AttnProcessor,
|
| 32 |
+
AttnProcessor2_0,
|
| 33 |
+
FusedJointAttnProcessor2_0,
|
| 34 |
+
JointAttnProcessor2_0,
|
| 35 |
+
SpatialNorm,
|
| 36 |
+
)
|
| 37 |
+
from diffusers.models.embeddings import CombinedTimestepTextProjEmbeddings, PatchEmbed, SinusoidalPositionalEmbedding
|
| 38 |
+
from diffusers.models.modeling_outputs import Transformer2DModelOutput
|
| 39 |
+
from diffusers.models.modeling_utils import ModelMixin
|
| 40 |
+
from diffusers.models.normalization import (
|
| 41 |
+
AdaLayerNorm,
|
| 42 |
+
AdaLayerNormContinuous,
|
| 43 |
+
AdaLayerNormZero,
|
| 44 |
+
RMSNorm,
|
| 45 |
+
SD35AdaLayerNormZeroX,
|
| 46 |
+
)
|
| 47 |
+
from diffusers.utils import USE_PEFT_BACKEND, logging, scale_lora_layers, unscale_lora_layers
|
| 48 |
+
from diffusers.utils.torch_utils import maybe_allow_in_graph
|
| 49 |
+
|
| 50 |
+
logger = logging.get_logger(__name__)
|
| 51 |
+
|
| 52 |
+
|
| 53 |
+
class MapAwareAttention(nn.Module):
|
| 54 |
+
r"""
|
| 55 |
+
A cross attention layer.
|
| 56 |
+
|
| 57 |
+
Parameters:
|
| 58 |
+
query_dim (`int`):
|
| 59 |
+
The number of channels in the query.
|
| 60 |
+
cross_attention_dim (`int`, *optional*):
|
| 61 |
+
The number of channels in the encoder_hidden_states. If not given, defaults to `query_dim`.
|
| 62 |
+
heads (`int`, *optional*, defaults to 8):
|
| 63 |
+
The number of heads to use for multi-head attention.
|
| 64 |
+
kv_heads (`int`, *optional*, defaults to `None`):
|
| 65 |
+
The number of key and value heads to use for multi-head attention. Defaults to `heads`. If
|
| 66 |
+
`kv_heads=heads`, the model will use Multi Head Attention (MHA), if `kv_heads=1` the model will use Multi
|
| 67 |
+
Query Attention (MQA) otherwise GQA is used.
|
| 68 |
+
dim_head (`int`, *optional*, defaults to 64):
|
| 69 |
+
The number of channels in each head.
|
| 70 |
+
dropout (`float`, *optional*, defaults to 0.0):
|
| 71 |
+
The dropout probability to use.
|
| 72 |
+
bias (`bool`, *optional*, defaults to False):
|
| 73 |
+
Set to `True` for the query, key, and value linear layers to contain a bias parameter.
|
| 74 |
+
upcast_attention (`bool`, *optional*, defaults to False):
|
| 75 |
+
Set to `True` to upcast the attention computation to `float32`.
|
| 76 |
+
upcast_softmax (`bool`, *optional*, defaults to False):
|
| 77 |
+
Set to `True` to upcast the softmax computation to `float32`.
|
| 78 |
+
cross_attention_norm (`str`, *optional*, defaults to `None`):
|
| 79 |
+
The type of normalization to use for the cross attention. Can be `None`, `layer_norm`, or `group_norm`.
|
| 80 |
+
cross_attention_norm_num_groups (`int`, *optional*, defaults to 32):
|
| 81 |
+
The number of groups to use for the group norm in the cross attention.
|
| 82 |
+
added_kv_proj_dim (`int`, *optional*, defaults to `None`):
|
| 83 |
+
The number of channels to use for the added key and value projections. If `None`, no projection is used.
|
| 84 |
+
norm_num_groups (`int`, *optional*, defaults to `None`):
|
| 85 |
+
The number of groups to use for the group norm in the attention.
|
| 86 |
+
spatial_norm_dim (`int`, *optional*, defaults to `None`):
|
| 87 |
+
The number of channels to use for the spatial normalization.
|
| 88 |
+
out_bias (`bool`, *optional*, defaults to `True`):
|
| 89 |
+
Set to `True` to use a bias in the output linear layer.
|
| 90 |
+
scale_qk (`bool`, *optional*, defaults to `True`):
|
| 91 |
+
Set to `True` to scale the query and key by `1 / sqrt(dim_head)`.
|
| 92 |
+
only_cross_attention (`bool`, *optional*, defaults to `False`):
|
| 93 |
+
Set to `True` to only use cross attention and not added_kv_proj_dim. Can only be set to `True` if
|
| 94 |
+
`added_kv_proj_dim` is not `None`.
|
| 95 |
+
eps (`float`, *optional*, defaults to 1e-5):
|
| 96 |
+
An additional value added to the denominator in group normalization that is used for numerical stability.
|
| 97 |
+
rescale_output_factor (`float`, *optional*, defaults to 1.0):
|
| 98 |
+
A factor to rescale the output by dividing it with this value.
|
| 99 |
+
residual_connection (`bool`, *optional*, defaults to `False`):
|
| 100 |
+
Set to `True` to add the residual connection to the output.
|
| 101 |
+
_from_deprecated_attn_block (`bool`, *optional*, defaults to `False`):
|
| 102 |
+
Set to `True` if the attention block is loaded from a deprecated state dict.
|
| 103 |
+
processor (`AttnProcessor`, *optional*, defaults to `None`):
|
| 104 |
+
The attention processor to use. If `None`, defaults to `AttnProcessor2_0` if `torch 2.x` is used and
|
| 105 |
+
`AttnProcessor` otherwise.
|
| 106 |
+
"""
|
| 107 |
+
|
| 108 |
+
def __init__(
|
| 109 |
+
self,
|
| 110 |
+
query_dim: int,
|
| 111 |
+
cross_attention_dim: Optional[int] = None,
|
| 112 |
+
heads: int = 8,
|
| 113 |
+
kv_heads: Optional[int] = None,
|
| 114 |
+
dim_head: int = 64,
|
| 115 |
+
dropout: float = 0.0,
|
| 116 |
+
bias: bool = False,
|
| 117 |
+
upcast_attention: bool = False,
|
| 118 |
+
upcast_softmax: bool = False,
|
| 119 |
+
cross_attention_norm: Optional[str] = None,
|
| 120 |
+
cross_attention_norm_num_groups: int = 32,
|
| 121 |
+
qk_norm: Optional[str] = None,
|
| 122 |
+
added_kv_proj_dim: Optional[int] = None,
|
| 123 |
+
added_proj_bias: Optional[bool] = True,
|
| 124 |
+
norm_num_groups: Optional[int] = None,
|
| 125 |
+
spatial_norm_dim: Optional[int] = None,
|
| 126 |
+
out_bias: bool = True,
|
| 127 |
+
scale_qk: bool = True,
|
| 128 |
+
only_cross_attention: bool = False,
|
| 129 |
+
eps: float = 1e-5,
|
| 130 |
+
rescale_output_factor: float = 1.0,
|
| 131 |
+
residual_connection: bool = False,
|
| 132 |
+
_from_deprecated_attn_block: bool = False,
|
| 133 |
+
processor: Optional["AttnProcessor"] = None,
|
| 134 |
+
out_dim: int = None,
|
| 135 |
+
out_context_dim: int = None,
|
| 136 |
+
context_pre_only=None,
|
| 137 |
+
pre_only=False,
|
| 138 |
+
elementwise_affine: bool = True,
|
| 139 |
+
is_causal: bool = False,
|
| 140 |
+
):
|
| 141 |
+
super().__init__()
|
| 142 |
+
|
| 143 |
+
# To prevent circular import.
|
| 144 |
+
from diffusers.models.normalization import FP32LayerNorm, LpNorm, RMSNorm
|
| 145 |
+
|
| 146 |
+
self.inner_dim = out_dim if out_dim is not None else dim_head * heads
|
| 147 |
+
self.inner_kv_dim = self.inner_dim if kv_heads is None else dim_head * kv_heads
|
| 148 |
+
self.query_dim = query_dim
|
| 149 |
+
self.use_bias = bias
|
| 150 |
+
self.is_cross_attention = cross_attention_dim is not None
|
| 151 |
+
self.cross_attention_dim = cross_attention_dim if cross_attention_dim is not None else query_dim
|
| 152 |
+
self.upcast_attention = upcast_attention
|
| 153 |
+
self.upcast_softmax = upcast_softmax
|
| 154 |
+
self.rescale_output_factor = rescale_output_factor
|
| 155 |
+
self.residual_connection = residual_connection
|
| 156 |
+
self.dropout = dropout
|
| 157 |
+
self.fused_projections = False
|
| 158 |
+
self.out_dim = out_dim if out_dim is not None else query_dim
|
| 159 |
+
self.out_context_dim = out_context_dim if out_context_dim is not None else query_dim
|
| 160 |
+
self.context_pre_only = context_pre_only
|
| 161 |
+
self.pre_only = pre_only
|
| 162 |
+
self.is_causal = is_causal
|
| 163 |
+
|
| 164 |
+
# we make use of this private variable to know whether this class is loaded
|
| 165 |
+
# with an deprecated state dict so that we can convert it on the fly
|
| 166 |
+
self._from_deprecated_attn_block = _from_deprecated_attn_block
|
| 167 |
+
|
| 168 |
+
self.scale_qk = scale_qk
|
| 169 |
+
self.scale = dim_head**-0.5 if self.scale_qk else 1.0
|
| 170 |
+
|
| 171 |
+
self.heads = out_dim // dim_head if out_dim is not None else heads
|
| 172 |
+
# for slice_size > 0 the attention score computation
|
| 173 |
+
# is split across the batch axis to save memory
|
| 174 |
+
# You can set slice_size with `set_attention_slice`
|
| 175 |
+
self.sliceable_head_dim = heads
|
| 176 |
+
|
| 177 |
+
self.added_kv_proj_dim = added_kv_proj_dim
|
| 178 |
+
self.only_cross_attention = only_cross_attention
|
| 179 |
+
|
| 180 |
+
if self.added_kv_proj_dim is None and self.only_cross_attention:
|
| 181 |
+
raise ValueError(
|
| 182 |
+
"`only_cross_attention` can only be set to True if `added_kv_proj_dim` is not None. Make sure to set either `only_cross_attention=False` or define `added_kv_proj_dim`."
|
| 183 |
+
)
|
| 184 |
+
|
| 185 |
+
if norm_num_groups is not None:
|
| 186 |
+
self.group_norm = nn.GroupNorm(num_channels=query_dim, num_groups=norm_num_groups, eps=eps, affine=True)
|
| 187 |
+
else:
|
| 188 |
+
self.group_norm = None
|
| 189 |
+
|
| 190 |
+
if spatial_norm_dim is not None:
|
| 191 |
+
self.spatial_norm = SpatialNorm(f_channels=query_dim, zq_channels=spatial_norm_dim)
|
| 192 |
+
else:
|
| 193 |
+
self.spatial_norm = None
|
| 194 |
+
|
| 195 |
+
if qk_norm is None:
|
| 196 |
+
self.norm_q = None
|
| 197 |
+
self.norm_k = None
|
| 198 |
+
elif qk_norm == "layer_norm":
|
| 199 |
+
self.norm_q = nn.LayerNorm(dim_head, eps=eps, elementwise_affine=elementwise_affine)
|
| 200 |
+
self.norm_k = nn.LayerNorm(dim_head, eps=eps, elementwise_affine=elementwise_affine)
|
| 201 |
+
elif qk_norm == "fp32_layer_norm":
|
| 202 |
+
self.norm_q = FP32LayerNorm(dim_head, elementwise_affine=False, bias=False, eps=eps)
|
| 203 |
+
self.norm_k = FP32LayerNorm(dim_head, elementwise_affine=False, bias=False, eps=eps)
|
| 204 |
+
elif qk_norm == "layer_norm_across_heads":
|
| 205 |
+
# Lumina applies qk norm across all heads
|
| 206 |
+
self.norm_q = nn.LayerNorm(dim_head * heads, eps=eps)
|
| 207 |
+
self.norm_k = nn.LayerNorm(dim_head * kv_heads, eps=eps)
|
| 208 |
+
elif qk_norm == "rms_norm":
|
| 209 |
+
self.norm_q = RMSNorm(dim_head, eps=eps, elementwise_affine=elementwise_affine)
|
| 210 |
+
self.norm_k = RMSNorm(dim_head, eps=eps, elementwise_affine=elementwise_affine)
|
| 211 |
+
elif qk_norm == "rms_norm_across_heads":
|
| 212 |
+
# LTX applies qk norm across all heads
|
| 213 |
+
self.norm_q = RMSNorm(dim_head * heads, eps=eps)
|
| 214 |
+
self.norm_k = RMSNorm(dim_head * kv_heads, eps=eps)
|
| 215 |
+
elif qk_norm == "l2":
|
| 216 |
+
self.norm_q = LpNorm(p=2, dim=-1, eps=eps)
|
| 217 |
+
self.norm_k = LpNorm(p=2, dim=-1, eps=eps)
|
| 218 |
+
else:
|
| 219 |
+
raise ValueError(
|
| 220 |
+
f"unknown qk_norm: {qk_norm}. Should be one of None, 'layer_norm', 'fp32_layer_norm', 'layer_norm_across_heads', 'rms_norm', 'rms_norm_across_heads', 'l2'."
|
| 221 |
+
)
|
| 222 |
+
|
| 223 |
+
if cross_attention_norm is None:
|
| 224 |
+
self.norm_cross = None
|
| 225 |
+
elif cross_attention_norm == "layer_norm":
|
| 226 |
+
self.norm_cross = nn.LayerNorm(self.cross_attention_dim)
|
| 227 |
+
elif cross_attention_norm == "group_norm":
|
| 228 |
+
if self.added_kv_proj_dim is not None:
|
| 229 |
+
# The given `encoder_hidden_states` are initially of shape
|
| 230 |
+
# (batch_size, seq_len, added_kv_proj_dim) before being projected
|
| 231 |
+
# to (batch_size, seq_len, cross_attention_dim). The norm is applied
|
| 232 |
+
# before the projection, so we need to use `added_kv_proj_dim` as
|
| 233 |
+
# the number of channels for the group norm.
|
| 234 |
+
norm_cross_num_channels = added_kv_proj_dim
|
| 235 |
+
else:
|
| 236 |
+
norm_cross_num_channels = self.cross_attention_dim
|
| 237 |
+
|
| 238 |
+
self.norm_cross = nn.GroupNorm(
|
| 239 |
+
num_channels=norm_cross_num_channels, num_groups=cross_attention_norm_num_groups, eps=1e-5, affine=True
|
| 240 |
+
)
|
| 241 |
+
else:
|
| 242 |
+
raise ValueError(
|
| 243 |
+
f"unknown cross_attention_norm: {cross_attention_norm}. Should be None, 'layer_norm' or 'group_norm'"
|
| 244 |
+
)
|
| 245 |
+
|
| 246 |
+
self.to_q = nn.Linear(query_dim, self.inner_dim, bias=bias)
|
| 247 |
+
|
| 248 |
+
if not self.only_cross_attention:
|
| 249 |
+
# only relevant for the `AddedKVProcessor` classes
|
| 250 |
+
self.to_k = nn.Linear(self.cross_attention_dim, self.inner_kv_dim, bias=bias)
|
| 251 |
+
self.to_v = nn.Linear(self.cross_attention_dim, self.inner_kv_dim, bias=bias)
|
| 252 |
+
else:
|
| 253 |
+
self.to_k = None
|
| 254 |
+
self.to_v = None
|
| 255 |
+
|
| 256 |
+
self.added_proj_bias = added_proj_bias
|
| 257 |
+
if self.added_kv_proj_dim is not None:
|
| 258 |
+
self.add_k_proj = nn.Linear(added_kv_proj_dim, self.inner_kv_dim, bias=added_proj_bias)
|
| 259 |
+
self.add_v_proj = nn.Linear(added_kv_proj_dim, self.inner_kv_dim, bias=added_proj_bias)
|
| 260 |
+
if self.context_pre_only is not None:
|
| 261 |
+
self.add_q_proj = nn.Linear(added_kv_proj_dim, self.inner_dim, bias=added_proj_bias)
|
| 262 |
+
else:
|
| 263 |
+
self.add_q_proj = None
|
| 264 |
+
self.add_k_proj = None
|
| 265 |
+
self.add_v_proj = None
|
| 266 |
+
|
| 267 |
+
if not self.pre_only:
|
| 268 |
+
self.to_out = nn.ModuleList([])
|
| 269 |
+
self.to_out.append(nn.Linear(self.inner_dim, self.out_dim, bias=out_bias))
|
| 270 |
+
self.to_out.append(nn.Dropout(dropout))
|
| 271 |
+
else:
|
| 272 |
+
self.to_out = None
|
| 273 |
+
|
| 274 |
+
if self.context_pre_only is not None and not self.context_pre_only:
|
| 275 |
+
self.to_add_out = nn.Linear(self.inner_dim, self.out_context_dim, bias=out_bias)
|
| 276 |
+
else:
|
| 277 |
+
self.to_add_out = None
|
| 278 |
+
|
| 279 |
+
if qk_norm is not None and added_kv_proj_dim is not None:
|
| 280 |
+
if qk_norm == "layer_norm":
|
| 281 |
+
self.norm_added_q = nn.LayerNorm(dim_head, eps=eps, elementwise_affine=elementwise_affine)
|
| 282 |
+
self.norm_added_k = nn.LayerNorm(dim_head, eps=eps, elementwise_affine=elementwise_affine)
|
| 283 |
+
elif qk_norm == "fp32_layer_norm":
|
| 284 |
+
self.norm_added_q = FP32LayerNorm(dim_head, elementwise_affine=False, bias=False, eps=eps)
|
| 285 |
+
self.norm_added_k = FP32LayerNorm(dim_head, elementwise_affine=False, bias=False, eps=eps)
|
| 286 |
+
elif qk_norm == "rms_norm":
|
| 287 |
+
self.norm_added_q = RMSNorm(dim_head, eps=eps)
|
| 288 |
+
self.norm_added_k = RMSNorm(dim_head, eps=eps)
|
| 289 |
+
elif qk_norm == "rms_norm_across_heads":
|
| 290 |
+
# Wan applies qk norm across all heads
|
| 291 |
+
# Wan also doesn't apply a q norm
|
| 292 |
+
self.norm_added_q = None
|
| 293 |
+
self.norm_added_k = RMSNorm(dim_head * kv_heads, eps=eps)
|
| 294 |
+
else:
|
| 295 |
+
raise ValueError(
|
| 296 |
+
f"unknown qk_norm: {qk_norm}. Should be one of `None,'layer_norm','fp32_layer_norm','rms_norm'`"
|
| 297 |
+
)
|
| 298 |
+
else:
|
| 299 |
+
self.norm_added_q = None
|
| 300 |
+
self.norm_added_k = None
|
| 301 |
+
|
| 302 |
+
# set attention processor
|
| 303 |
+
# We use the AttnProcessor2_0 by default when torch 2.x is used which uses
|
| 304 |
+
# torch.nn.functional.scaled_dot_product_attention for native Flash/memory_efficient_attention
|
| 305 |
+
# but only if it has the default `scale` argument. TODO remove scale_qk check when we move to torch 2.1
|
| 306 |
+
if processor is None:
|
| 307 |
+
processor = (
|
| 308 |
+
AttnProcessor2_0() if hasattr(F, "scaled_dot_product_attention") and self.scale_qk else AttnProcessor()
|
| 309 |
+
)
|
| 310 |
+
self.set_processor(processor)
|
| 311 |
+
|
| 312 |
+
# def set_use_xla_flash_attention(
|
| 313 |
+
# self,
|
| 314 |
+
# use_xla_flash_attention: bool,
|
| 315 |
+
# partition_spec: Optional[Tuple[Optional[str], ...]] = None,
|
| 316 |
+
# is_flux=False,
|
| 317 |
+
# ) -> None:
|
| 318 |
+
# r"""
|
| 319 |
+
# Set whether to use xla flash attention from `torch_xla` or not.
|
| 320 |
+
|
| 321 |
+
# Args:
|
| 322 |
+
# use_xla_flash_attention (`bool`):
|
| 323 |
+
# Whether to use pallas flash attention kernel from `torch_xla` or not.
|
| 324 |
+
# partition_spec (`Tuple[]`, *optional*):
|
| 325 |
+
# Specify the partition specification if using SPMD. Otherwise None.
|
| 326 |
+
# """
|
| 327 |
+
# if use_xla_flash_attention:
|
| 328 |
+
# if not is_torch_xla_available:
|
| 329 |
+
# raise "torch_xla is not available"
|
| 330 |
+
# elif is_torch_xla_version("<", "2.3"):
|
| 331 |
+
# raise "flash attention pallas kernel is supported from torch_xla version 2.3"
|
| 332 |
+
# elif is_spmd() and is_torch_xla_version("<", "2.4"):
|
| 333 |
+
# raise "flash attention pallas kernel using SPMD is supported from torch_xla version 2.4"
|
| 334 |
+
# else:
|
| 335 |
+
# if is_flux:
|
| 336 |
+
# processor = XLAFluxFlashAttnProcessor2_0(partition_spec)
|
| 337 |
+
# else:
|
| 338 |
+
# processor = XLAFlashAttnProcessor2_0(partition_spec)
|
| 339 |
+
# else:
|
| 340 |
+
# processor = (
|
| 341 |
+
# AttnProcessor2_0() if hasattr(F, "scaled_dot_product_attention") and self.scale_qk else AttnProcessor()
|
| 342 |
+
# )
|
| 343 |
+
# self.set_processor(processor)
|
| 344 |
+
|
| 345 |
+
# def set_use_npu_flash_attention(self, use_npu_flash_attention: bool) -> None:
|
| 346 |
+
# r"""
|
| 347 |
+
# Set whether to use npu flash attention from `torch_npu` or not.
|
| 348 |
+
|
| 349 |
+
# """
|
| 350 |
+
# if use_npu_flash_attention:
|
| 351 |
+
# processor = AttnProcessorNPU()
|
| 352 |
+
# else:
|
| 353 |
+
# # set attention processor
|
| 354 |
+
# # We use the AttnProcessor2_0 by default when torch 2.x is used which uses
|
| 355 |
+
# # torch.nn.functional.scaled_dot_product_attention for native Flash/memory_efficient_attention
|
| 356 |
+
# # but only if it has the default `scale` argument. TODO remove scale_qk check when we move to torch 2.1
|
| 357 |
+
# processor = (
|
| 358 |
+
# AttnProcessor2_0() if hasattr(F, "scaled_dot_product_attention") and self.scale_qk else AttnProcessor()
|
| 359 |
+
# )
|
| 360 |
+
# self.set_processor(processor)
|
| 361 |
+
|
| 362 |
+
# def set_use_memory_efficient_attention_xformers(
|
| 363 |
+
# self, use_memory_efficient_attention_xformers: bool, attention_op: Optional[Callable] = None
|
| 364 |
+
# ) -> None:
|
| 365 |
+
# r"""
|
| 366 |
+
# Set whether to use memory efficient attention from `xformers` or not.
|
| 367 |
+
|
| 368 |
+
# Args:
|
| 369 |
+
# use_memory_efficient_attention_xformers (`bool`):
|
| 370 |
+
# Whether to use memory efficient attention from `xformers` or not.
|
| 371 |
+
# attention_op (`Callable`, *optional*):
|
| 372 |
+
# The attention operation to use. Defaults to `None` which uses the default attention operation from
|
| 373 |
+
# `xformers`.
|
| 374 |
+
# """
|
| 375 |
+
# is_custom_diffusion = hasattr(self, "processor") and isinstance(
|
| 376 |
+
# self.processor,
|
| 377 |
+
# (CustomDiffusionAttnProcessor, CustomDiffusionXFormersAttnProcessor, CustomDiffusionAttnProcessor2_0),
|
| 378 |
+
# )
|
| 379 |
+
# is_added_kv_processor = hasattr(self, "processor") and isinstance(
|
| 380 |
+
# self.processor,
|
| 381 |
+
# (
|
| 382 |
+
# AttnAddedKVProcessor,
|
| 383 |
+
# AttnAddedKVProcessor2_0,
|
| 384 |
+
# SlicedAttnAddedKVProcessor,
|
| 385 |
+
# XFormersAttnAddedKVProcessor,
|
| 386 |
+
# ),
|
| 387 |
+
# )
|
| 388 |
+
# is_ip_adapter = hasattr(self, "processor") and isinstance(
|
| 389 |
+
# self.processor,
|
| 390 |
+
# (IPAdapterAttnProcessor, IPAdapterAttnProcessor2_0, IPAdapterXFormersAttnProcessor),
|
| 391 |
+
# )
|
| 392 |
+
# is_joint_processor = hasattr(self, "processor") and isinstance(
|
| 393 |
+
# self.processor,
|
| 394 |
+
# (
|
| 395 |
+
# JointAttnProcessor2_0,
|
| 396 |
+
# XFormersJointAttnProcessor,
|
| 397 |
+
# ),
|
| 398 |
+
# )
|
| 399 |
+
|
| 400 |
+
# if use_memory_efficient_attention_xformers:
|
| 401 |
+
# if is_added_kv_processor and is_custom_diffusion:
|
| 402 |
+
# raise NotImplementedError(
|
| 403 |
+
# f"Memory efficient attention is currently not supported for custom diffusion for attention processor type {self.processor}"
|
| 404 |
+
# )
|
| 405 |
+
# if not is_xformers_available():
|
| 406 |
+
# raise ModuleNotFoundError(
|
| 407 |
+
# (
|
| 408 |
+
# "Refer to https://github.com/facebookresearch/xformers for more information on how to install"
|
| 409 |
+
# " xformers"
|
| 410 |
+
# ),
|
| 411 |
+
# name="xformers",
|
| 412 |
+
# )
|
| 413 |
+
# elif not torch.cuda.is_available():
|
| 414 |
+
# raise ValueError(
|
| 415 |
+
# "torch.cuda.is_available() should be True but is False. xformers' memory efficient attention is"
|
| 416 |
+
# " only available for GPU "
|
| 417 |
+
# )
|
| 418 |
+
# else:
|
| 419 |
+
# try:
|
| 420 |
+
# # Make sure we can run the memory efficient attention
|
| 421 |
+
# dtype = None
|
| 422 |
+
# if attention_op is not None:
|
| 423 |
+
# op_fw, op_bw = attention_op
|
| 424 |
+
# dtype, *_ = op_fw.SUPPORTED_DTYPES
|
| 425 |
+
# q = torch.randn((1, 2, 40), device="cuda", dtype=dtype)
|
| 426 |
+
# _ = xformers.ops.memory_efficient_attention(q, q, q)
|
| 427 |
+
# except Exception as e:
|
| 428 |
+
# raise e
|
| 429 |
+
|
| 430 |
+
# if is_custom_diffusion:
|
| 431 |
+
# processor = CustomDiffusionXFormersAttnProcessor(
|
| 432 |
+
# train_kv=self.processor.train_kv,
|
| 433 |
+
# train_q_out=self.processor.train_q_out,
|
| 434 |
+
# hidden_size=self.processor.hidden_size,
|
| 435 |
+
# cross_attention_dim=self.processor.cross_attention_dim,
|
| 436 |
+
# attention_op=attention_op,
|
| 437 |
+
# )
|
| 438 |
+
# processor.load_state_dict(self.processor.state_dict())
|
| 439 |
+
# if hasattr(self.processor, "to_k_custom_diffusion"):
|
| 440 |
+
# processor.to(self.processor.to_k_custom_diffusion.weight.device)
|
| 441 |
+
# elif is_added_kv_processor:
|
| 442 |
+
# # TODO(Patrick, Suraj, William) - currently xformers doesn't work for UnCLIP
|
| 443 |
+
# # which uses this type of cross attention ONLY because the attention mask of format
|
| 444 |
+
# # [0, ..., -10.000, ..., 0, ...,] is not supported
|
| 445 |
+
# # throw warning
|
| 446 |
+
# logger.info(
|
| 447 |
+
# "Memory efficient attention with `xformers` might currently not work correctly if an attention mask is required for the attention operation."
|
| 448 |
+
# )
|
| 449 |
+
# processor = XFormersAttnAddedKVProcessor(attention_op=attention_op)
|
| 450 |
+
# elif is_ip_adapter:
|
| 451 |
+
# processor = IPAdapterXFormersAttnProcessor(
|
| 452 |
+
# hidden_size=self.processor.hidden_size,
|
| 453 |
+
# cross_attention_dim=self.processor.cross_attention_dim,
|
| 454 |
+
# num_tokens=self.processor.num_tokens,
|
| 455 |
+
# scale=self.processor.scale,
|
| 456 |
+
# attention_op=attention_op,
|
| 457 |
+
# )
|
| 458 |
+
# processor.load_state_dict(self.processor.state_dict())
|
| 459 |
+
# if hasattr(self.processor, "to_k_ip"):
|
| 460 |
+
# processor.to(
|
| 461 |
+
# device=self.processor.to_k_ip[0].weight.device, dtype=self.processor.to_k_ip[0].weight.dtype
|
| 462 |
+
# )
|
| 463 |
+
# elif is_joint_processor:
|
| 464 |
+
# processor = XFormersJointAttnProcessor(attention_op=attention_op)
|
| 465 |
+
# else:
|
| 466 |
+
# processor = XFormersAttnProcessor(attention_op=attention_op)
|
| 467 |
+
# else:
|
| 468 |
+
# if is_custom_diffusion:
|
| 469 |
+
# attn_processor_class = (
|
| 470 |
+
# CustomDiffusionAttnProcessor2_0
|
| 471 |
+
# if hasattr(F, "scaled_dot_product_attention")
|
| 472 |
+
# else CustomDiffusionAttnProcessor
|
| 473 |
+
# )
|
| 474 |
+
# processor = attn_processor_class(
|
| 475 |
+
# train_kv=self.processor.train_kv,
|
| 476 |
+
# train_q_out=self.processor.train_q_out,
|
| 477 |
+
# hidden_size=self.processor.hidden_size,
|
| 478 |
+
# cross_attention_dim=self.processor.cross_attention_dim,
|
| 479 |
+
# )
|
| 480 |
+
# processor.load_state_dict(self.processor.state_dict())
|
| 481 |
+
# if hasattr(self.processor, "to_k_custom_diffusion"):
|
| 482 |
+
# processor.to(self.processor.to_k_custom_diffusion.weight.device)
|
| 483 |
+
# elif is_ip_adapter:
|
| 484 |
+
# processor = IPAdapterAttnProcessor2_0(
|
| 485 |
+
# hidden_size=self.processor.hidden_size,
|
| 486 |
+
# cross_attention_dim=self.processor.cross_attention_dim,
|
| 487 |
+
# num_tokens=self.processor.num_tokens,
|
| 488 |
+
# scale=self.processor.scale,
|
| 489 |
+
# )
|
| 490 |
+
# processor.load_state_dict(self.processor.state_dict())
|
| 491 |
+
# if hasattr(self.processor, "to_k_ip"):
|
| 492 |
+
# processor.to(
|
| 493 |
+
# device=self.processor.to_k_ip[0].weight.device, dtype=self.processor.to_k_ip[0].weight.dtype
|
| 494 |
+
# )
|
| 495 |
+
# else:
|
| 496 |
+
# # set attention processor
|
| 497 |
+
# # We use the AttnProcessor2_0 by default when torch 2.x is used which uses
|
| 498 |
+
# # torch.nn.functional.scaled_dot_product_attention for native Flash/memory_efficient_attention
|
| 499 |
+
# # but only if it has the default `scale` argument. TODO remove scale_qk check when we move to torch 2.1
|
| 500 |
+
# processor = (
|
| 501 |
+
# AttnProcessor2_0()
|
| 502 |
+
# if hasattr(F, "scaled_dot_product_attention") and self.scale_qk
|
| 503 |
+
# else AttnProcessor()
|
| 504 |
+
# )
|
| 505 |
+
|
| 506 |
+
# self.set_processor(processor)
|
| 507 |
+
|
| 508 |
+
# def set_attention_slice(self, slice_size: int) -> None:
|
| 509 |
+
# r"""
|
| 510 |
+
# Set the slice size for attention computation.
|
| 511 |
+
|
| 512 |
+
# Args:
|
| 513 |
+
# slice_size (`int`):
|
| 514 |
+
# The slice size for attention computation.
|
| 515 |
+
# """
|
| 516 |
+
# if slice_size is not None and slice_size > self.sliceable_head_dim:
|
| 517 |
+
# raise ValueError(f"slice_size {slice_size} has to be smaller or equal to {self.sliceable_head_dim}.")
|
| 518 |
+
|
| 519 |
+
# if slice_size is not None and self.added_kv_proj_dim is not None:
|
| 520 |
+
# processor = SlicedAttnAddedKVProcessor(slice_size)
|
| 521 |
+
# elif slice_size is not None:
|
| 522 |
+
# processor = SlicedAttnProcessor(slice_size)
|
| 523 |
+
# elif self.added_kv_proj_dim is not None:
|
| 524 |
+
# processor = AttnAddedKVProcessor()
|
| 525 |
+
# else:
|
| 526 |
+
# # set attention processor
|
| 527 |
+
# # We use the AttnProcessor2_0 by default when torch 2.x is used which uses
|
| 528 |
+
# # torch.nn.functional.scaled_dot_product_attention for native Flash/memory_efficient_attention
|
| 529 |
+
# # but only if it has the default `scale` argument. TODO remove scale_qk check when we move to torch 2.1
|
| 530 |
+
# processor = (
|
| 531 |
+
# AttnProcessor2_0() if hasattr(F, "scaled_dot_product_attention") and self.scale_qk else AttnProcessor()
|
| 532 |
+
# )
|
| 533 |
+
|
| 534 |
+
# self.set_processor(processor)
|
| 535 |
+
|
| 536 |
+
def set_processor(self, processor: "AttnProcessor") -> None:
|
| 537 |
+
r"""
|
| 538 |
+
Set the attention processor to use.
|
| 539 |
+
|
| 540 |
+
Args:
|
| 541 |
+
processor (`AttnProcessor`):
|
| 542 |
+
The attention processor to use.
|
| 543 |
+
"""
|
| 544 |
+
# if current processor is in `self._modules` and if passed `processor` is not, we need to
|
| 545 |
+
# pop `processor` from `self._modules`
|
| 546 |
+
if (
|
| 547 |
+
hasattr(self, "processor")
|
| 548 |
+
and isinstance(self.processor, torch.nn.Module)
|
| 549 |
+
and not isinstance(processor, torch.nn.Module)
|
| 550 |
+
):
|
| 551 |
+
logger.info(f"You are removing possibly trained weights of {self.processor} with {processor}")
|
| 552 |
+
self._modules.pop("processor")
|
| 553 |
+
|
| 554 |
+
self.processor = processor
|
| 555 |
+
|
| 556 |
+
def get_processor(self, return_deprecated_lora: bool = False) -> "AttentionProcessor":
|
| 557 |
+
r"""
|
| 558 |
+
Get the attention processor in use.
|
| 559 |
+
|
| 560 |
+
Args:
|
| 561 |
+
return_deprecated_lora (`bool`, *optional*, defaults to `False`):
|
| 562 |
+
Set to `True` to return the deprecated LoRA attention processor.
|
| 563 |
+
|
| 564 |
+
Returns:
|
| 565 |
+
"AttentionProcessor": The attention processor in use.
|
| 566 |
+
"""
|
| 567 |
+
if not return_deprecated_lora:
|
| 568 |
+
return self.processor
|
| 569 |
+
|
| 570 |
+
def forward(
|
| 571 |
+
self,
|
| 572 |
+
hidden_states: torch.Tensor,
|
| 573 |
+
encoder_hidden_states: Optional[torch.Tensor] = None,
|
| 574 |
+
map_aware_mask: Optional[torch.FloatTensor] = None,
|
| 575 |
+
**cross_attention_kwargs,
|
| 576 |
+
) -> torch.Tensor:
|
| 577 |
+
r"""
|
| 578 |
+
The forward method of the `Attention` class.
|
| 579 |
+
|
| 580 |
+
Args:
|
| 581 |
+
hidden_states (`torch.Tensor`):
|
| 582 |
+
The hidden states of the query.
|
| 583 |
+
encoder_hidden_states (`torch.Tensor`, *optional*):
|
| 584 |
+
The hidden states of the encoder.
|
| 585 |
+
map_aware_mask (`torch.Tensor`, *optional*):
|
| 586 |
+
The attention mask to use. If `None`, no mask is applied.
|
| 587 |
+
**cross_attention_kwargs:
|
| 588 |
+
Additional keyword arguments to pass along to the cross attention.
|
| 589 |
+
|
| 590 |
+
Returns:
|
| 591 |
+
`torch.Tensor`: The output of the attention layer.
|
| 592 |
+
"""
|
| 593 |
+
# The `Attention` class can call different attention processors / attention functions
|
| 594 |
+
# here we simply pass along all tensors to the selected processor class
|
| 595 |
+
# For standard processors that are defined here, `**cross_attention_kwargs` is empty
|
| 596 |
+
|
| 597 |
+
attn_parameters = set(inspect.signature(self.processor.__call__).parameters.keys())
|
| 598 |
+
quiet_attn_parameters = {"ip_adapter_masks", "ip_hidden_states"}
|
| 599 |
+
unused_kwargs = [
|
| 600 |
+
k for k, _ in cross_attention_kwargs.items() if k not in attn_parameters and k not in quiet_attn_parameters
|
| 601 |
+
]
|
| 602 |
+
if len(unused_kwargs) > 0:
|
| 603 |
+
logger.warning(
|
| 604 |
+
f"cross_attention_kwargs {unused_kwargs} are not expected by {self.processor.__class__.__name__} and will be ignored."
|
| 605 |
+
)
|
| 606 |
+
cross_attention_kwargs = {k: w for k, w in cross_attention_kwargs.items() if k in attn_parameters}
|
| 607 |
+
|
| 608 |
+
return self.processor(
|
| 609 |
+
self,
|
| 610 |
+
hidden_states,
|
| 611 |
+
encoder_hidden_states=encoder_hidden_states,
|
| 612 |
+
attention_mask=map_aware_mask,
|
| 613 |
+
**cross_attention_kwargs,
|
| 614 |
+
)
|
| 615 |
+
|
| 616 |
+
def batch_to_head_dim(self, tensor: torch.Tensor) -> torch.Tensor:
|
| 617 |
+
r"""
|
| 618 |
+
Reshape the tensor from `[batch_size, seq_len, dim]` to `[batch_size // heads, seq_len, dim * heads]`. `heads`
|
| 619 |
+
is the number of heads initialized while constructing the `Attention` class.
|
| 620 |
+
|
| 621 |
+
Args:
|
| 622 |
+
tensor (`torch.Tensor`): The tensor to reshape.
|
| 623 |
+
|
| 624 |
+
Returns:
|
| 625 |
+
`torch.Tensor`: The reshaped tensor.
|
| 626 |
+
"""
|
| 627 |
+
head_size = self.heads
|
| 628 |
+
batch_size, seq_len, dim = tensor.shape
|
| 629 |
+
tensor = tensor.reshape(batch_size // head_size, head_size, seq_len, dim)
|
| 630 |
+
tensor = tensor.permute(0, 2, 1, 3).reshape(batch_size // head_size, seq_len, dim * head_size)
|
| 631 |
+
return tensor
|
| 632 |
+
|
| 633 |
+
def head_to_batch_dim(self, tensor: torch.Tensor, out_dim: int = 3) -> torch.Tensor:
|
| 634 |
+
r"""
|
| 635 |
+
Reshape the tensor from `[batch_size, seq_len, dim]` to `[batch_size, seq_len, heads, dim // heads]` `heads` is
|
| 636 |
+
the number of heads initialized while constructing the `Attention` class.
|
| 637 |
+
|
| 638 |
+
Args:
|
| 639 |
+
tensor (`torch.Tensor`): The tensor to reshape.
|
| 640 |
+
out_dim (`int`, *optional*, defaults to `3`): The output dimension of the tensor. If `3`, the tensor is
|
| 641 |
+
reshaped to `[batch_size * heads, seq_len, dim // heads]`.
|
| 642 |
+
|
| 643 |
+
Returns:
|
| 644 |
+
`torch.Tensor`: The reshaped tensor.
|
| 645 |
+
"""
|
| 646 |
+
head_size = self.heads
|
| 647 |
+
if tensor.ndim == 3:
|
| 648 |
+
batch_size, seq_len, dim = tensor.shape
|
| 649 |
+
extra_dim = 1
|
| 650 |
+
else:
|
| 651 |
+
batch_size, extra_dim, seq_len, dim = tensor.shape
|
| 652 |
+
tensor = tensor.reshape(batch_size, seq_len * extra_dim, head_size, dim // head_size)
|
| 653 |
+
tensor = tensor.permute(0, 2, 1, 3)
|
| 654 |
+
|
| 655 |
+
if out_dim == 3:
|
| 656 |
+
tensor = tensor.reshape(batch_size * head_size, seq_len * extra_dim, dim // head_size)
|
| 657 |
+
|
| 658 |
+
return tensor
|
| 659 |
+
|
| 660 |
+
def get_attention_scores(
|
| 661 |
+
self, query: torch.Tensor, key: torch.Tensor, attention_mask: Optional[torch.Tensor] = None
|
| 662 |
+
) -> torch.Tensor:
|
| 663 |
+
r"""
|
| 664 |
+
Compute the attention scores.
|
| 665 |
+
|
| 666 |
+
Args:
|
| 667 |
+
query (`torch.Tensor`): The query tensor.
|
| 668 |
+
key (`torch.Tensor`): The key tensor.
|
| 669 |
+
attention_mask (`torch.Tensor`, *optional*): The attention mask to use. If `None`, no mask is applied.
|
| 670 |
+
|
| 671 |
+
Returns:
|
| 672 |
+
`torch.Tensor`: The attention probabilities/scores.
|
| 673 |
+
"""
|
| 674 |
+
dtype = query.dtype
|
| 675 |
+
if self.upcast_attention:
|
| 676 |
+
query = query.float()
|
| 677 |
+
key = key.float()
|
| 678 |
+
|
| 679 |
+
if attention_mask is None:
|
| 680 |
+
baddbmm_input = torch.empty(
|
| 681 |
+
query.shape[0], query.shape[1], key.shape[1], dtype=query.dtype, device=query.device
|
| 682 |
+
)
|
| 683 |
+
beta = 0
|
| 684 |
+
else:
|
| 685 |
+
baddbmm_input = attention_mask
|
| 686 |
+
beta = 1
|
| 687 |
+
|
| 688 |
+
attention_scores = torch.baddbmm(
|
| 689 |
+
baddbmm_input,
|
| 690 |
+
query,
|
| 691 |
+
key.transpose(-1, -2),
|
| 692 |
+
beta=beta,
|
| 693 |
+
alpha=self.scale,
|
| 694 |
+
)
|
| 695 |
+
del baddbmm_input
|
| 696 |
+
|
| 697 |
+
if self.upcast_softmax:
|
| 698 |
+
attention_scores = attention_scores.float()
|
| 699 |
+
|
| 700 |
+
attention_probs = attention_scores.softmax(dim=-1)
|
| 701 |
+
del attention_scores
|
| 702 |
+
|
| 703 |
+
attention_probs = attention_probs.to(dtype)
|
| 704 |
+
|
| 705 |
+
return attention_probs
|
| 706 |
+
|
| 707 |
+
def prepare_attention_mask(
|
| 708 |
+
self, attention_mask: torch.Tensor, target_length: int, batch_size: int, out_dim: int = 3
|
| 709 |
+
) -> torch.Tensor:
|
| 710 |
+
r"""
|
| 711 |
+
Prepare the attention mask for the attention computation.
|
| 712 |
+
|
| 713 |
+
Args:
|
| 714 |
+
attention_mask (`torch.Tensor`):
|
| 715 |
+
The attention mask to prepare.
|
| 716 |
+
target_length (`int`):
|
| 717 |
+
The target length of the attention mask. This is the length of the attention mask after padding.
|
| 718 |
+
batch_size (`int`):
|
| 719 |
+
The batch size, which is used to repeat the attention mask.
|
| 720 |
+
out_dim (`int`, *optional*, defaults to `3`):
|
| 721 |
+
The output dimension of the attention mask. Can be either `3` or `4`.
|
| 722 |
+
|
| 723 |
+
Returns:
|
| 724 |
+
`torch.Tensor`: The prepared attention mask.
|
| 725 |
+
"""
|
| 726 |
+
head_size = self.heads
|
| 727 |
+
if attention_mask is None:
|
| 728 |
+
return attention_mask
|
| 729 |
+
|
| 730 |
+
current_length: int = attention_mask.shape[-1]
|
| 731 |
+
if current_length != target_length:
|
| 732 |
+
if attention_mask.device.type == "mps":
|
| 733 |
+
# HACK: MPS: Does not support padding by greater than dimension of input tensor.
|
| 734 |
+
# Instead, we can manually construct the padding tensor.
|
| 735 |
+
padding_shape = (attention_mask.shape[0], attention_mask.shape[1], target_length)
|
| 736 |
+
padding = torch.zeros(padding_shape, dtype=attention_mask.dtype, device=attention_mask.device)
|
| 737 |
+
attention_mask = torch.cat([attention_mask, padding], dim=2)
|
| 738 |
+
else:
|
| 739 |
+
# TODO: for pipelines such as stable-diffusion, padding cross-attn mask:
|
| 740 |
+
# we want to instead pad by (0, remaining_length), where remaining_length is:
|
| 741 |
+
# remaining_length: int = target_length - current_length
|
| 742 |
+
# TODO: re-enable tests/models/test_models_unet_2d_condition.py#test_model_xattn_padding
|
| 743 |
+
attention_mask = F.pad(attention_mask, (0, target_length), value=0.0)
|
| 744 |
+
|
| 745 |
+
if out_dim == 3:
|
| 746 |
+
if attention_mask.shape[0] < batch_size * head_size:
|
| 747 |
+
attention_mask = attention_mask.repeat_interleave(
|
| 748 |
+
head_size, dim=0, output_size=attention_mask.shape[0] * head_size
|
| 749 |
+
)
|
| 750 |
+
elif out_dim == 4:
|
| 751 |
+
attention_mask = attention_mask.unsqueeze(1)
|
| 752 |
+
attention_mask = attention_mask.repeat_interleave(
|
| 753 |
+
head_size, dim=1, output_size=attention_mask.shape[1] * head_size
|
| 754 |
+
)
|
| 755 |
+
|
| 756 |
+
return attention_mask
|
| 757 |
+
|
| 758 |
+
def norm_encoder_hidden_states(self, encoder_hidden_states: torch.Tensor) -> torch.Tensor:
|
| 759 |
+
r"""
|
| 760 |
+
Normalize the encoder hidden states. Requires `self.norm_cross` to be specified when constructing the
|
| 761 |
+
`Attention` class.
|
| 762 |
+
|
| 763 |
+
Args:
|
| 764 |
+
encoder_hidden_states (`torch.Tensor`): Hidden states of the encoder.
|
| 765 |
+
|
| 766 |
+
Returns:
|
| 767 |
+
`torch.Tensor`: The normalized encoder hidden states.
|
| 768 |
+
"""
|
| 769 |
+
assert self.norm_cross is not None, "self.norm_cross must be defined to call self.norm_encoder_hidden_states"
|
| 770 |
+
|
| 771 |
+
if isinstance(self.norm_cross, nn.LayerNorm):
|
| 772 |
+
encoder_hidden_states = self.norm_cross(encoder_hidden_states)
|
| 773 |
+
elif isinstance(self.norm_cross, nn.GroupNorm):
|
| 774 |
+
# Group norm norms along the channels dimension and expects
|
| 775 |
+
# input to be in the shape of (N, C, *). In this case, we want
|
| 776 |
+
# to norm along the hidden dimension, so we need to move
|
| 777 |
+
# (batch_size, sequence_length, hidden_size) ->
|
| 778 |
+
# (batch_size, hidden_size, sequence_length)
|
| 779 |
+
encoder_hidden_states = encoder_hidden_states.transpose(1, 2)
|
| 780 |
+
encoder_hidden_states = self.norm_cross(encoder_hidden_states)
|
| 781 |
+
encoder_hidden_states = encoder_hidden_states.transpose(1, 2)
|
| 782 |
+
else:
|
| 783 |
+
assert False
|
| 784 |
+
|
| 785 |
+
return encoder_hidden_states
|
| 786 |
+
|
| 787 |
+
@torch.no_grad()
|
| 788 |
+
def fuse_projections(self, fuse=True):
|
| 789 |
+
device = self.to_q.weight.data.device
|
| 790 |
+
dtype = self.to_q.weight.data.dtype
|
| 791 |
+
|
| 792 |
+
if not self.is_cross_attention:
|
| 793 |
+
# fetch weight matrices.
|
| 794 |
+
concatenated_weights = torch.cat([self.to_q.weight.data, self.to_k.weight.data, self.to_v.weight.data])
|
| 795 |
+
in_features = concatenated_weights.shape[1]
|
| 796 |
+
out_features = concatenated_weights.shape[0]
|
| 797 |
+
|
| 798 |
+
# create a new single projection layer and copy over the weights.
|
| 799 |
+
self.to_qkv = nn.Linear(in_features, out_features, bias=self.use_bias, device=device, dtype=dtype)
|
| 800 |
+
self.to_qkv.weight.copy_(concatenated_weights)
|
| 801 |
+
if self.use_bias:
|
| 802 |
+
concatenated_bias = torch.cat([self.to_q.bias.data, self.to_k.bias.data, self.to_v.bias.data])
|
| 803 |
+
self.to_qkv.bias.copy_(concatenated_bias)
|
| 804 |
+
|
| 805 |
+
else:
|
| 806 |
+
concatenated_weights = torch.cat([self.to_k.weight.data, self.to_v.weight.data])
|
| 807 |
+
in_features = concatenated_weights.shape[1]
|
| 808 |
+
out_features = concatenated_weights.shape[0]
|
| 809 |
+
|
| 810 |
+
self.to_kv = nn.Linear(in_features, out_features, bias=self.use_bias, device=device, dtype=dtype)
|
| 811 |
+
self.to_kv.weight.copy_(concatenated_weights)
|
| 812 |
+
if self.use_bias:
|
| 813 |
+
concatenated_bias = torch.cat([self.to_k.bias.data, self.to_v.bias.data])
|
| 814 |
+
self.to_kv.bias.copy_(concatenated_bias)
|
| 815 |
+
|
| 816 |
+
# handle added projections for SD3 and others.
|
| 817 |
+
if (
|
| 818 |
+
getattr(self, "add_q_proj", None) is not None
|
| 819 |
+
and getattr(self, "add_k_proj", None) is not None
|
| 820 |
+
and getattr(self, "add_v_proj", None) is not None
|
| 821 |
+
):
|
| 822 |
+
concatenated_weights = torch.cat(
|
| 823 |
+
[self.add_q_proj.weight.data, self.add_k_proj.weight.data, self.add_v_proj.weight.data]
|
| 824 |
+
)
|
| 825 |
+
in_features = concatenated_weights.shape[1]
|
| 826 |
+
out_features = concatenated_weights.shape[0]
|
| 827 |
+
|
| 828 |
+
self.to_added_qkv = nn.Linear(
|
| 829 |
+
in_features, out_features, bias=self.added_proj_bias, device=device, dtype=dtype
|
| 830 |
+
)
|
| 831 |
+
self.to_added_qkv.weight.copy_(concatenated_weights)
|
| 832 |
+
if self.added_proj_bias:
|
| 833 |
+
concatenated_bias = torch.cat(
|
| 834 |
+
[self.add_q_proj.bias.data, self.add_k_proj.bias.data, self.add_v_proj.bias.data]
|
| 835 |
+
)
|
| 836 |
+
self.to_added_qkv.bias.copy_(concatenated_bias)
|
| 837 |
+
|
| 838 |
+
self.fused_projections = fuse
|
| 839 |
+
|
| 840 |
+
class MapAwareAttnProcessor2_0:
|
| 841 |
+
"""Attention processor used typically in processing the SD3-like self-attention projections."""
|
| 842 |
+
|
| 843 |
+
def __init__(self):
|
| 844 |
+
if not hasattr(F, "scaled_dot_product_attention"):
|
| 845 |
+
raise ImportError("JointAttnProcessor2_0 requires PyTorch 2.0, to use it, please upgrade PyTorch to 2.0.")
|
| 846 |
+
|
| 847 |
+
def __call__(
|
| 848 |
+
self,
|
| 849 |
+
attn: Attention,
|
| 850 |
+
hidden_states: torch.FloatTensor,
|
| 851 |
+
encoder_hidden_states: torch.FloatTensor = None,
|
| 852 |
+
attention_mask: Optional[torch.FloatTensor] = None,
|
| 853 |
+
*args,
|
| 854 |
+
**kwargs,
|
| 855 |
+
) -> torch.FloatTensor:
|
| 856 |
+
# print("attention_mask: ", attention_mask)
|
| 857 |
+
residual = hidden_states
|
| 858 |
+
|
| 859 |
+
batch_size = hidden_states.shape[0]
|
| 860 |
+
|
| 861 |
+
# `sample` projections.
|
| 862 |
+
query = attn.to_q(hidden_states)
|
| 863 |
+
key = attn.to_k(hidden_states)
|
| 864 |
+
value = attn.to_v(hidden_states)
|
| 865 |
+
|
| 866 |
+
inner_dim = key.shape[-1]
|
| 867 |
+
head_dim = inner_dim // attn.heads
|
| 868 |
+
|
| 869 |
+
query = query.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
|
| 870 |
+
key = key.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
|
| 871 |
+
value = value.view(batch_size, -1, attn.heads, head_dim).transpose(1, 2)
|
| 872 |
+
|
| 873 |
+
if attn.norm_q is not None:
|
| 874 |
+
query = attn.norm_q(query)
|
| 875 |
+
if attn.norm_k is not None:
|
| 876 |
+
key = attn.norm_k(key)
|
| 877 |
+
|
| 878 |
+
# `context` projections.
|
| 879 |
+
if encoder_hidden_states is not None:
|
| 880 |
+
encoder_hidden_states_query_proj = attn.add_q_proj(encoder_hidden_states)
|
| 881 |
+
encoder_hidden_states_key_proj = attn.add_k_proj(encoder_hidden_states)
|
| 882 |
+
encoder_hidden_states_value_proj = attn.add_v_proj(encoder_hidden_states)
|
| 883 |
+
|
| 884 |
+
encoder_hidden_states_query_proj = encoder_hidden_states_query_proj.view(
|
| 885 |
+
batch_size, -1, attn.heads, head_dim
|
| 886 |
+
).transpose(1, 2)
|
| 887 |
+
encoder_hidden_states_key_proj = encoder_hidden_states_key_proj.view(
|
| 888 |
+
batch_size, -1, attn.heads, head_dim
|
| 889 |
+
).transpose(1, 2)
|
| 890 |
+
encoder_hidden_states_value_proj = encoder_hidden_states_value_proj.view(
|
| 891 |
+
batch_size, -1, attn.heads, head_dim
|
| 892 |
+
).transpose(1, 2)
|
| 893 |
+
|
| 894 |
+
if attn.norm_added_q is not None:
|
| 895 |
+
encoder_hidden_states_query_proj = attn.norm_added_q(encoder_hidden_states_query_proj)
|
| 896 |
+
if attn.norm_added_k is not None:
|
| 897 |
+
encoder_hidden_states_key_proj = attn.norm_added_k(encoder_hidden_states_key_proj)
|
| 898 |
+
|
| 899 |
+
# print(f"image q: {query.shape}, image k: {key.shape}, image v: {value.shape}") # [B, 24, 1024, 64]
|
| 900 |
+
# print(f"text q: {encoder_hidden_states_query_proj.shape}, text k: {encoder_hidden_states_key_proj.shape}, text v: {encoder_hidden_states_value_proj.shape}")
|
| 901 |
+
# [B, 24, 154, 64]
|
| 902 |
+
|
| 903 |
+
query = torch.cat([query, encoder_hidden_states_query_proj], dim=2)
|
| 904 |
+
key = torch.cat([key, encoder_hidden_states_key_proj], dim=2)
|
| 905 |
+
value = torch.cat([value, encoder_hidden_states_value_proj], dim=2)
|
| 906 |
+
|
| 907 |
+
# print(f"Joint - query shape: {query.shape}, key shape: {key.shape}, value shape: {value.shape}")
|
| 908 |
+
# [B, 24, 1178, 64]
|
| 909 |
+
map_aware_mask = attention_mask
|
| 910 |
+
else:
|
| 911 |
+
map_aware_mask = None
|
| 912 |
+
# print(
|
| 913 |
+
# "map_aware_mask:",
|
| 914 |
+
# None if map_aware_mask is None else (map_aware_mask.shape, map_aware_mask.dtype)
|
| 915 |
+
# )
|
| 916 |
+
|
| 917 |
+
# print("query: ", query.shape, query.dtype)
|
| 918 |
+
if map_aware_mask is not None:
|
| 919 |
+
map_aware_mask = map_aware_mask.to(query.dtype)
|
| 920 |
+
|
| 921 |
+
|
| 922 |
+
hidden_states = F.scaled_dot_product_attention(query, key, value,
|
| 923 |
+
attn_mask=map_aware_mask,
|
| 924 |
+
dropout_p=0.0,
|
| 925 |
+
is_causal=False)
|
| 926 |
+
|
| 927 |
+
|
| 928 |
+
hidden_states = hidden_states.transpose(1, 2).reshape(batch_size, -1, attn.heads * head_dim)
|
| 929 |
+
hidden_states = hidden_states.to(query.dtype)
|
| 930 |
+
|
| 931 |
+
if encoder_hidden_states is not None:
|
| 932 |
+
# Split the attention outputs.
|
| 933 |
+
hidden_states, encoder_hidden_states = (
|
| 934 |
+
hidden_states[:, : residual.shape[1]],
|
| 935 |
+
hidden_states[:, residual.shape[1] :],
|
| 936 |
+
)
|
| 937 |
+
if not attn.context_pre_only:
|
| 938 |
+
encoder_hidden_states = attn.to_add_out(encoder_hidden_states)
|
| 939 |
+
|
| 940 |
+
# linear proj
|
| 941 |
+
hidden_states = attn.to_out[0](hidden_states)
|
| 942 |
+
# dropout
|
| 943 |
+
hidden_states = attn.to_out[1](hidden_states)
|
| 944 |
+
|
| 945 |
+
if encoder_hidden_states is not None:
|
| 946 |
+
return hidden_states, encoder_hidden_states
|
| 947 |
+
else:
|
| 948 |
+
return hidden_states
|
| 949 |
+
|
| 950 |
+
class MapAwareTransformerBlock(nn.Module):
|
| 951 |
+
r"""
|
| 952 |
+
A Transformer block following the MMDiT architecture, introduced in Stable Diffusion 3.
|
| 953 |
+
|
| 954 |
+
Reference: https://huggingface.co/papers/2403.03206
|
| 955 |
+
|
| 956 |
+
Parameters:
|
| 957 |
+
dim (`int`): The number of channels in the input and output.
|
| 958 |
+
num_attention_heads (`int`): The number of heads to use for multi-head attention.
|
| 959 |
+
attention_head_dim (`int`): The number of channels in each head.
|
| 960 |
+
context_pre_only (`bool`): Boolean to determine if we should add some blocks associated with the
|
| 961 |
+
processing of `context` conditions.
|
| 962 |
+
"""
|
| 963 |
+
|
| 964 |
+
def __init__(
|
| 965 |
+
self,
|
| 966 |
+
dim: int,
|
| 967 |
+
num_attention_heads: int,
|
| 968 |
+
attention_head_dim: int,
|
| 969 |
+
context_pre_only: bool = False,
|
| 970 |
+
qk_norm: Optional[str] = None,
|
| 971 |
+
use_dual_attention: bool = False,
|
| 972 |
+
):
|
| 973 |
+
super().__init__()
|
| 974 |
+
|
| 975 |
+
self.use_dual_attention = use_dual_attention
|
| 976 |
+
self.context_pre_only = context_pre_only
|
| 977 |
+
context_norm_type = "ada_norm_continous" if context_pre_only else "ada_norm_zero"
|
| 978 |
+
|
| 979 |
+
if use_dual_attention:
|
| 980 |
+
self.norm1 = SD35AdaLayerNormZeroX(dim)
|
| 981 |
+
else:
|
| 982 |
+
self.norm1 = AdaLayerNormZero(dim)
|
| 983 |
+
|
| 984 |
+
if context_norm_type == "ada_norm_continous":
|
| 985 |
+
self.norm1_context = AdaLayerNormContinuous(
|
| 986 |
+
dim, dim, elementwise_affine=False, eps=1e-6, bias=True, norm_type="layer_norm"
|
| 987 |
+
)
|
| 988 |
+
elif context_norm_type == "ada_norm_zero":
|
| 989 |
+
self.norm1_context = AdaLayerNormZero(dim)
|
| 990 |
+
else:
|
| 991 |
+
raise ValueError(
|
| 992 |
+
f"Unknown context_norm_type: {context_norm_type}, currently only support `ada_norm_continous`, `ada_norm_zero`"
|
| 993 |
+
)
|
| 994 |
+
|
| 995 |
+
# if hasattr(F, "scaled_dot_product_attention"):
|
| 996 |
+
# processor = JointAttnProcessor2_0()
|
| 997 |
+
# else:
|
| 998 |
+
# raise ValueError(
|
| 999 |
+
# "The current PyTorch version does not support the `scaled_dot_product_attention` function."
|
| 1000 |
+
# )
|
| 1001 |
+
|
| 1002 |
+
self.attn = MapAwareAttention(
|
| 1003 |
+
query_dim=dim,
|
| 1004 |
+
cross_attention_dim=None,
|
| 1005 |
+
added_kv_proj_dim=dim,
|
| 1006 |
+
dim_head=attention_head_dim,
|
| 1007 |
+
heads=num_attention_heads,
|
| 1008 |
+
out_dim=dim,
|
| 1009 |
+
context_pre_only=context_pre_only,
|
| 1010 |
+
bias=True,
|
| 1011 |
+
processor=MapAwareAttnProcessor2_0(),
|
| 1012 |
+
qk_norm=qk_norm,
|
| 1013 |
+
eps=1e-6,
|
| 1014 |
+
)
|
| 1015 |
+
|
| 1016 |
+
if use_dual_attention:
|
| 1017 |
+
self.attn2 = Attention(
|
| 1018 |
+
query_dim=dim,
|
| 1019 |
+
cross_attention_dim=None,
|
| 1020 |
+
dim_head=attention_head_dim,
|
| 1021 |
+
heads=num_attention_heads,
|
| 1022 |
+
out_dim=dim,
|
| 1023 |
+
bias=True,
|
| 1024 |
+
processor=JointAttnProcessor2_0(),
|
| 1025 |
+
qk_norm=qk_norm,
|
| 1026 |
+
eps=1e-6,
|
| 1027 |
+
)
|
| 1028 |
+
else:
|
| 1029 |
+
self.attn2 = None
|
| 1030 |
+
|
| 1031 |
+
self.norm2 = nn.LayerNorm(dim, elementwise_affine=False, eps=1e-6)
|
| 1032 |
+
self.ff = FeedForward(dim=dim, dim_out=dim, activation_fn="gelu-approximate")
|
| 1033 |
+
|
| 1034 |
+
if not context_pre_only:
|
| 1035 |
+
self.norm2_context = nn.LayerNorm(dim, elementwise_affine=False, eps=1e-6)
|
| 1036 |
+
self.ff_context = FeedForward(dim=dim, dim_out=dim, activation_fn="gelu-approximate")
|
| 1037 |
+
else:
|
| 1038 |
+
self.norm2_context = None
|
| 1039 |
+
self.ff_context = None
|
| 1040 |
+
|
| 1041 |
+
# let chunk size default to None
|
| 1042 |
+
self._chunk_size = None
|
| 1043 |
+
self._chunk_dim = 0
|
| 1044 |
+
|
| 1045 |
+
# Copied from diffusers.models.attention.BasicTransformerBlock.set_chunk_feed_forward
|
| 1046 |
+
def set_chunk_feed_forward(self, chunk_size: Optional[int], dim: int = 0):
|
| 1047 |
+
# Sets chunk feed-forward
|
| 1048 |
+
self._chunk_size = chunk_size
|
| 1049 |
+
self._chunk_dim = dim
|
| 1050 |
+
|
| 1051 |
+
def forward(
|
| 1052 |
+
self,
|
| 1053 |
+
hidden_states: torch.FloatTensor,
|
| 1054 |
+
encoder_hidden_states: torch.FloatTensor,
|
| 1055 |
+
temb: torch.FloatTensor,
|
| 1056 |
+
map_aware_mask: Optional[torch.FloatTensor] = None,
|
| 1057 |
+
joint_attention_kwargs: Optional[Dict[str, Any]] = None,
|
| 1058 |
+
):
|
| 1059 |
+
joint_attention_kwargs = joint_attention_kwargs or {}
|
| 1060 |
+
if self.use_dual_attention:
|
| 1061 |
+
# print(f"hidden_states: {type(hidden_states)}")
|
| 1062 |
+
norm_hidden_states, gate_msa, shift_mlp, scale_mlp, gate_mlp, norm_hidden_states2, gate_msa2 = self.norm1(
|
| 1063 |
+
hidden_states, emb=temb
|
| 1064 |
+
)
|
| 1065 |
+
else:
|
| 1066 |
+
norm_hidden_states, gate_msa, shift_mlp, scale_mlp, gate_mlp = self.norm1(hidden_states, emb=temb)
|
| 1067 |
+
|
| 1068 |
+
if self.context_pre_only:
|
| 1069 |
+
norm_encoder_hidden_states = self.norm1_context(encoder_hidden_states, temb)
|
| 1070 |
+
else:
|
| 1071 |
+
norm_encoder_hidden_states, c_gate_msa, c_shift_mlp, c_scale_mlp, c_gate_mlp = self.norm1_context(
|
| 1072 |
+
encoder_hidden_states, emb=temb
|
| 1073 |
+
)
|
| 1074 |
+
|
| 1075 |
+
# Attention.
|
| 1076 |
+
attn_output, context_attn_output = self.attn(
|
| 1077 |
+
hidden_states=norm_hidden_states,
|
| 1078 |
+
encoder_hidden_states=norm_encoder_hidden_states,
|
| 1079 |
+
map_aware_mask=map_aware_mask,
|
| 1080 |
+
**joint_attention_kwargs,
|
| 1081 |
+
)
|
| 1082 |
+
|
| 1083 |
+
# Process attention outputs for the `hidden_states`.
|
| 1084 |
+
attn_output = gate_msa.unsqueeze(1) * attn_output
|
| 1085 |
+
hidden_states = hidden_states + attn_output
|
| 1086 |
+
|
| 1087 |
+
if self.use_dual_attention:
|
| 1088 |
+
attn_output2 = self.attn2(hidden_states=norm_hidden_states2, **joint_attention_kwargs)
|
| 1089 |
+
attn_output2 = gate_msa2.unsqueeze(1) * attn_output2
|
| 1090 |
+
hidden_states = hidden_states + attn_output2
|
| 1091 |
+
|
| 1092 |
+
norm_hidden_states = self.norm2(hidden_states)
|
| 1093 |
+
norm_hidden_states = norm_hidden_states * (1 + scale_mlp[:, None]) + shift_mlp[:, None]
|
| 1094 |
+
if self._chunk_size is not None:
|
| 1095 |
+
# "feed_forward_chunk_size" can be used to save memory
|
| 1096 |
+
ff_output = _chunked_feed_forward(self.ff, norm_hidden_states, self._chunk_dim, self._chunk_size)
|
| 1097 |
+
else:
|
| 1098 |
+
ff_output = self.ff(norm_hidden_states)
|
| 1099 |
+
ff_output = gate_mlp.unsqueeze(1) * ff_output
|
| 1100 |
+
|
| 1101 |
+
hidden_states = hidden_states + ff_output
|
| 1102 |
+
|
| 1103 |
+
# Process attention outputs for the `encoder_hidden_states`.
|
| 1104 |
+
if self.context_pre_only:
|
| 1105 |
+
encoder_hidden_states = None
|
| 1106 |
+
else:
|
| 1107 |
+
context_attn_output = c_gate_msa.unsqueeze(1) * context_attn_output
|
| 1108 |
+
encoder_hidden_states = encoder_hidden_states + context_attn_output
|
| 1109 |
+
|
| 1110 |
+
norm_encoder_hidden_states = self.norm2_context(encoder_hidden_states)
|
| 1111 |
+
norm_encoder_hidden_states = norm_encoder_hidden_states * (1 + c_scale_mlp[:, None]) + c_shift_mlp[:, None]
|
| 1112 |
+
if self._chunk_size is not None:
|
| 1113 |
+
# "feed_forward_chunk_size" can be used to save memory
|
| 1114 |
+
context_ff_output = _chunked_feed_forward(
|
| 1115 |
+
self.ff_context, norm_encoder_hidden_states, self._chunk_dim, self._chunk_size
|
| 1116 |
+
)
|
| 1117 |
+
else:
|
| 1118 |
+
context_ff_output = self.ff_context(norm_encoder_hidden_states)
|
| 1119 |
+
encoder_hidden_states = encoder_hidden_states + c_gate_mlp.unsqueeze(1) * context_ff_output
|
| 1120 |
+
|
| 1121 |
+
return encoder_hidden_states, hidden_states
|
| 1122 |
+
|
| 1123 |
+
@maybe_allow_in_graph
|
| 1124 |
+
class SD3SingleTransformerBlock(nn.Module):
|
| 1125 |
+
def __init__(
|
| 1126 |
+
self,
|
| 1127 |
+
dim: int,
|
| 1128 |
+
num_attention_heads: int,
|
| 1129 |
+
attention_head_dim: int,
|
| 1130 |
+
):
|
| 1131 |
+
super().__init__()
|
| 1132 |
+
|
| 1133 |
+
self.norm1 = AdaLayerNormZero(dim)
|
| 1134 |
+
self.attn = Attention(
|
| 1135 |
+
query_dim=dim,
|
| 1136 |
+
dim_head=attention_head_dim,
|
| 1137 |
+
heads=num_attention_heads,
|
| 1138 |
+
out_dim=dim,
|
| 1139 |
+
bias=True,
|
| 1140 |
+
processor=JointAttnProcessor2_0(),
|
| 1141 |
+
eps=1e-6,
|
| 1142 |
+
)
|
| 1143 |
+
|
| 1144 |
+
self.norm2 = nn.LayerNorm(dim, elementwise_affine=False, eps=1e-6)
|
| 1145 |
+
self.ff = FeedForward(dim=dim, dim_out=dim, activation_fn="gelu-approximate")
|
| 1146 |
+
|
| 1147 |
+
def forward(self, hidden_states: torch.Tensor, temb: torch.Tensor):
|
| 1148 |
+
# 1. Attention
|
| 1149 |
+
norm_hidden_states, gate_msa, shift_mlp, scale_mlp, gate_mlp = self.norm1(hidden_states, emb=temb)
|
| 1150 |
+
attn_output = self.attn(hidden_states=norm_hidden_states, encoder_hidden_states=None)
|
| 1151 |
+
attn_output = gate_msa.unsqueeze(1) * attn_output
|
| 1152 |
+
hidden_states = hidden_states + attn_output
|
| 1153 |
+
|
| 1154 |
+
# 2. Feed Forward
|
| 1155 |
+
norm_hidden_states = self.norm2(hidden_states)
|
| 1156 |
+
norm_hidden_states = norm_hidden_states * (1 + scale_mlp.unsqueeze(1)) + shift_mlp.unsqueeze(1)
|
| 1157 |
+
ff_output = self.ff(norm_hidden_states)
|
| 1158 |
+
ff_output = gate_mlp.unsqueeze(1) * ff_output
|
| 1159 |
+
hidden_states = hidden_states + ff_output
|
| 1160 |
+
|
| 1161 |
+
return hidden_states
|
| 1162 |
+
|
| 1163 |
+
|
| 1164 |
+
class IntrinsicWeatherSD3Transformer2DModel(
|
| 1165 |
+
ModelMixin, ConfigMixin, PeftAdapterMixin, FromOriginalModelMixin, SD3Transformer2DLoadersMixin
|
| 1166 |
+
):
|
| 1167 |
+
"""
|
| 1168 |
+
The Transformer model introduced in [Stable Diffusion 3](https://huggingface.co/papers/2403.03206).
|
| 1169 |
+
|
| 1170 |
+
Parameters:
|
| 1171 |
+
sample_size (`int`, defaults to `128`):
|
| 1172 |
+
The width/height of the latents. This is fixed during training since it is used to learn a number of
|
| 1173 |
+
position embeddings.
|
| 1174 |
+
patch_size (`int`, defaults to `2`):
|
| 1175 |
+
Patch size to turn the input data into small patches.
|
| 1176 |
+
in_channels (`int`, defaults to `16`):
|
| 1177 |
+
The number of latent channels in the input.
|
| 1178 |
+
num_layers (`int`, defaults to `18`):
|
| 1179 |
+
The number of layers of transformer blocks to use.
|
| 1180 |
+
attention_head_dim (`int`, defaults to `64`):
|
| 1181 |
+
The number of channels in each head.
|
| 1182 |
+
num_attention_heads (`int`, defaults to `18`):
|
| 1183 |
+
The number of heads to use for multi-head attention.
|
| 1184 |
+
joint_attention_dim (`int`, defaults to `4096`):
|
| 1185 |
+
The embedding dimension to use for joint text-image attention.
|
| 1186 |
+
caption_projection_dim (`int`, defaults to `1152`):
|
| 1187 |
+
The embedding dimension of caption embeddings.
|
| 1188 |
+
pooled_projection_dim (`int`, defaults to `2048`):
|
| 1189 |
+
The embedding dimension of pooled text projections.
|
| 1190 |
+
out_channels (`int`, defaults to `16`):
|
| 1191 |
+
The number of latent channels in the output.
|
| 1192 |
+
pos_embed_max_size (`int`, defaults to `96`):
|
| 1193 |
+
The maximum latent height/width of positional embeddings.
|
| 1194 |
+
dual_attention_layers (`Tuple[int, ...]`, defaults to `()`):
|
| 1195 |
+
The number of dual-stream transformer blocks to use.
|
| 1196 |
+
qk_norm (`str`, *optional*, defaults to `None`):
|
| 1197 |
+
The normalization to use for query and key in the attention layer. If `None`, no normalization is used.
|
| 1198 |
+
"""
|
| 1199 |
+
|
| 1200 |
+
_supports_gradient_checkpointing = True
|
| 1201 |
+
_no_split_modules = ["JointTransformerBlock"]
|
| 1202 |
+
_skip_layerwise_casting_patterns = ["pos_embed", "norm"]
|
| 1203 |
+
|
| 1204 |
+
@register_to_config
|
| 1205 |
+
def __init__(
|
| 1206 |
+
self,
|
| 1207 |
+
sample_size: int = 128,
|
| 1208 |
+
patch_size: int = 2,
|
| 1209 |
+
in_channels: int = 16,
|
| 1210 |
+
num_layers: int = 18,
|
| 1211 |
+
attention_head_dim: int = 64,
|
| 1212 |
+
num_attention_heads: int = 18,
|
| 1213 |
+
joint_attention_dim: int = 4096,
|
| 1214 |
+
caption_projection_dim: int = 1152,
|
| 1215 |
+
pooled_projection_dim: int = 2048,
|
| 1216 |
+
out_channels: int = 16,
|
| 1217 |
+
pos_embed_max_size: int = 96,
|
| 1218 |
+
dual_attention_layers: Tuple[
|
| 1219 |
+
int, ...
|
| 1220 |
+
] = (), # () for sd3.0; (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12) for sd3.5
|
| 1221 |
+
qk_norm: Optional[str] = None,
|
| 1222 |
+
):
|
| 1223 |
+
super().__init__()
|
| 1224 |
+
self.out_channels = out_channels if out_channels is not None else in_channels
|
| 1225 |
+
self.inner_dim = num_attention_heads * attention_head_dim
|
| 1226 |
+
|
| 1227 |
+
self.pos_embed = PatchEmbed(
|
| 1228 |
+
height=sample_size,
|
| 1229 |
+
width=sample_size,
|
| 1230 |
+
patch_size=patch_size,
|
| 1231 |
+
in_channels=in_channels,
|
| 1232 |
+
embed_dim=self.inner_dim,
|
| 1233 |
+
pos_embed_max_size=pos_embed_max_size, # hard-code for now.
|
| 1234 |
+
)
|
| 1235 |
+
self.time_text_embed = CombinedTimestepTextProjEmbeddings(
|
| 1236 |
+
embedding_dim=self.inner_dim, pooled_projection_dim=pooled_projection_dim
|
| 1237 |
+
)
|
| 1238 |
+
self.context_embedder = nn.Linear(joint_attention_dim, caption_projection_dim)
|
| 1239 |
+
|
| 1240 |
+
self.transformer_blocks = nn.ModuleList(
|
| 1241 |
+
[
|
| 1242 |
+
MapAwareTransformerBlock(
|
| 1243 |
+
dim=self.inner_dim,
|
| 1244 |
+
num_attention_heads=num_attention_heads,
|
| 1245 |
+
attention_head_dim=attention_head_dim,
|
| 1246 |
+
context_pre_only=i == num_layers - 1,
|
| 1247 |
+
qk_norm=qk_norm,
|
| 1248 |
+
use_dual_attention=True if i in dual_attention_layers else False,
|
| 1249 |
+
)
|
| 1250 |
+
for i in range(num_layers)
|
| 1251 |
+
]
|
| 1252 |
+
)
|
| 1253 |
+
|
| 1254 |
+
self.norm_out = AdaLayerNormContinuous(self.inner_dim, self.inner_dim, elementwise_affine=False, eps=1e-6)
|
| 1255 |
+
self.proj_out = nn.Linear(self.inner_dim, patch_size * patch_size * self.out_channels, bias=True)
|
| 1256 |
+
|
| 1257 |
+
self.gradient_checkpointing = False
|
| 1258 |
+
|
| 1259 |
+
# Copied from diffusers.models.unets.unet_3d_condition.UNet3DConditionModel.enable_forward_chunking
|
| 1260 |
+
def enable_forward_chunking(self, chunk_size: Optional[int] = None, dim: int = 0) -> None:
|
| 1261 |
+
"""
|
| 1262 |
+
Sets the attention processor to use [feed forward
|
| 1263 |
+
chunking](https://huggingface.co/blog/reformer#2-chunked-feed-forward-layers).
|
| 1264 |
+
|
| 1265 |
+
Parameters:
|
| 1266 |
+
chunk_size (`int`, *optional*):
|
| 1267 |
+
The chunk size of the feed-forward layers. If not specified, will run feed-forward layer individually
|
| 1268 |
+
over each tensor of dim=`dim`.
|
| 1269 |
+
dim (`int`, *optional*, defaults to `0`):
|
| 1270 |
+
The dimension over which the feed-forward computation should be chunked. Choose between dim=0 (batch)
|
| 1271 |
+
or dim=1 (sequence length).
|
| 1272 |
+
"""
|
| 1273 |
+
if dim not in [0, 1]:
|
| 1274 |
+
raise ValueError(f"Make sure to set `dim` to either 0 or 1, not {dim}")
|
| 1275 |
+
|
| 1276 |
+
# By default chunk size is 1
|
| 1277 |
+
chunk_size = chunk_size or 1
|
| 1278 |
+
|
| 1279 |
+
def fn_recursive_feed_forward(module: torch.nn.Module, chunk_size: int, dim: int):
|
| 1280 |
+
if hasattr(module, "set_chunk_feed_forward"):
|
| 1281 |
+
module.set_chunk_feed_forward(chunk_size=chunk_size, dim=dim)
|
| 1282 |
+
|
| 1283 |
+
for child in module.children():
|
| 1284 |
+
fn_recursive_feed_forward(child, chunk_size, dim)
|
| 1285 |
+
|
| 1286 |
+
for module in self.children():
|
| 1287 |
+
fn_recursive_feed_forward(module, chunk_size, dim)
|
| 1288 |
+
|
| 1289 |
+
# Copied from diffusers.models.unets.unet_3d_condition.UNet3DConditionModel.disable_forward_chunking
|
| 1290 |
+
def disable_forward_chunking(self):
|
| 1291 |
+
def fn_recursive_feed_forward(module: torch.nn.Module, chunk_size: int, dim: int):
|
| 1292 |
+
if hasattr(module, "set_chunk_feed_forward"):
|
| 1293 |
+
module.set_chunk_feed_forward(chunk_size=chunk_size, dim=dim)
|
| 1294 |
+
|
| 1295 |
+
for child in module.children():
|
| 1296 |
+
fn_recursive_feed_forward(child, chunk_size, dim)
|
| 1297 |
+
|
| 1298 |
+
for module in self.children():
|
| 1299 |
+
fn_recursive_feed_forward(module, None, 0)
|
| 1300 |
+
|
| 1301 |
+
@property
|
| 1302 |
+
# Copied from diffusers.models.unets.unet_2d_condition.UNet2DConditionModel.attn_processors
|
| 1303 |
+
def attn_processors(self) -> Dict[str, AttentionProcessor]:
|
| 1304 |
+
r"""
|
| 1305 |
+
Returns:
|
| 1306 |
+
`dict` of attention processors: A dictionary containing all attention processors used in the model with
|
| 1307 |
+
indexed by its weight name.
|
| 1308 |
+
"""
|
| 1309 |
+
# set recursively
|
| 1310 |
+
processors = {}
|
| 1311 |
+
|
| 1312 |
+
def fn_recursive_add_processors(name: str, module: torch.nn.Module, processors: Dict[str, AttentionProcessor]):
|
| 1313 |
+
if hasattr(module, "get_processor"):
|
| 1314 |
+
processors[f"{name}.processor"] = module.get_processor()
|
| 1315 |
+
|
| 1316 |
+
for sub_name, child in module.named_children():
|
| 1317 |
+
fn_recursive_add_processors(f"{name}.{sub_name}", child, processors)
|
| 1318 |
+
|
| 1319 |
+
return processors
|
| 1320 |
+
|
| 1321 |
+
for name, module in self.named_children():
|
| 1322 |
+
fn_recursive_add_processors(name, module, processors)
|
| 1323 |
+
|
| 1324 |
+
return processors
|
| 1325 |
+
|
| 1326 |
+
# Copied from diffusers.models.unets.unet_2d_condition.UNet2DConditionModel.set_attn_processor
|
| 1327 |
+
def set_attn_processor(self, processor: Union[AttentionProcessor, Dict[str, AttentionProcessor]]):
|
| 1328 |
+
r"""
|
| 1329 |
+
Sets the attention processor to use to compute attention.
|
| 1330 |
+
|
| 1331 |
+
Parameters:
|
| 1332 |
+
processor (`dict` of `AttentionProcessor` or only `AttentionProcessor`):
|
| 1333 |
+
The instantiated processor class or a dictionary of processor classes that will be set as the processor
|
| 1334 |
+
for **all** `Attention` layers.
|
| 1335 |
+
|
| 1336 |
+
If `processor` is a dict, the key needs to define the path to the corresponding cross attention
|
| 1337 |
+
processor. This is strongly recommended when setting trainable attention processors.
|
| 1338 |
+
|
| 1339 |
+
"""
|
| 1340 |
+
count = len(self.attn_processors.keys())
|
| 1341 |
+
|
| 1342 |
+
if isinstance(processor, dict) and len(processor) != count:
|
| 1343 |
+
raise ValueError(
|
| 1344 |
+
f"A dict of processors was passed, but the number of processors {len(processor)} does not match the"
|
| 1345 |
+
f" number of attention layers: {count}. Please make sure to pass {count} processor classes."
|
| 1346 |
+
)
|
| 1347 |
+
|
| 1348 |
+
def fn_recursive_attn_processor(name: str, module: torch.nn.Module, processor):
|
| 1349 |
+
if hasattr(module, "set_processor"):
|
| 1350 |
+
if not isinstance(processor, dict):
|
| 1351 |
+
module.set_processor(processor)
|
| 1352 |
+
else:
|
| 1353 |
+
module.set_processor(processor.pop(f"{name}.processor"))
|
| 1354 |
+
|
| 1355 |
+
for sub_name, child in module.named_children():
|
| 1356 |
+
fn_recursive_attn_processor(f"{name}.{sub_name}", child, processor)
|
| 1357 |
+
|
| 1358 |
+
for name, module in self.named_children():
|
| 1359 |
+
fn_recursive_attn_processor(name, module, processor)
|
| 1360 |
+
|
| 1361 |
+
# Copied from diffusers.models.unets.unet_2d_condition.UNet2DConditionModel.fuse_qkv_projections with FusedAttnProcessor2_0->FusedJointAttnProcessor2_0
|
| 1362 |
+
def fuse_qkv_projections(self):
|
| 1363 |
+
"""
|
| 1364 |
+
Enables fused QKV projections. For self-attention modules, all projection matrices (i.e., query, key, value)
|
| 1365 |
+
are fused. For cross-attention modules, key and value projection matrices are fused.
|
| 1366 |
+
|
| 1367 |
+
<Tip warning={true}>
|
| 1368 |
+
|
| 1369 |
+
This API is 🧪 experimental.
|
| 1370 |
+
|
| 1371 |
+
</Tip>
|
| 1372 |
+
"""
|
| 1373 |
+
self.original_attn_processors = None
|
| 1374 |
+
|
| 1375 |
+
for _, attn_processor in self.attn_processors.items():
|
| 1376 |
+
if "Added" in str(attn_processor.__class__.__name__):
|
| 1377 |
+
raise ValueError("`fuse_qkv_projections()` is not supported for models having added KV projections.")
|
| 1378 |
+
|
| 1379 |
+
self.original_attn_processors = self.attn_processors
|
| 1380 |
+
|
| 1381 |
+
for module in self.modules():
|
| 1382 |
+
if isinstance(module, Attention):
|
| 1383 |
+
module.fuse_projections(fuse=True)
|
| 1384 |
+
|
| 1385 |
+
self.set_attn_processor(FusedJointAttnProcessor2_0())
|
| 1386 |
+
|
| 1387 |
+
# Copied from diffusers.models.unets.unet_2d_condition.UNet2DConditionModel.unfuse_qkv_projections
|
| 1388 |
+
def unfuse_qkv_projections(self):
|
| 1389 |
+
"""Disables the fused QKV projection if enabled.
|
| 1390 |
+
|
| 1391 |
+
<Tip warning={true}>
|
| 1392 |
+
|
| 1393 |
+
This API is 🧪 experimental.
|
| 1394 |
+
|
| 1395 |
+
</Tip>
|
| 1396 |
+
|
| 1397 |
+
"""
|
| 1398 |
+
if self.original_attn_processors is not None:
|
| 1399 |
+
self.set_attn_processor(self.original_attn_processors)
|
| 1400 |
+
|
| 1401 |
+
def forward(
|
| 1402 |
+
self,
|
| 1403 |
+
hidden_states: torch.Tensor,
|
| 1404 |
+
encoder_hidden_states: torch.Tensor = None,
|
| 1405 |
+
pooled_projections: torch.Tensor = None,
|
| 1406 |
+
timestep: torch.LongTensor = None,
|
| 1407 |
+
block_controlnet_hidden_states: List = None,
|
| 1408 |
+
joint_attention_kwargs: Optional[Dict[str, Any]] = None,
|
| 1409 |
+
return_dict: bool = True,
|
| 1410 |
+
skip_layers: Optional[List[int]] = None,
|
| 1411 |
+
map_aware_mask: Optional[torch.FloatTensor] = None,
|
| 1412 |
+
) -> Union[torch.Tensor, Transformer2DModelOutput]:
|
| 1413 |
+
"""
|
| 1414 |
+
The [`SD3Transformer2DModel`] forward method.
|
| 1415 |
+
|
| 1416 |
+
Args:
|
| 1417 |
+
hidden_states (`torch.Tensor` of shape `(batch size, channel, height, width)`):
|
| 1418 |
+
Input `hidden_states`.
|
| 1419 |
+
encoder_hidden_states (`torch.Tensor` of shape `(batch size, sequence_len, embed_dims)`):
|
| 1420 |
+
Conditional embeddings (embeddings computed from the input conditions such as prompts) to use.
|
| 1421 |
+
pooled_projections (`torch.Tensor` of shape `(batch_size, projection_dim)`):
|
| 1422 |
+
Embeddings projected from the embeddings of input conditions.
|
| 1423 |
+
timestep (`torch.LongTensor`):
|
| 1424 |
+
Used to indicate denoising step.
|
| 1425 |
+
block_controlnet_hidden_states (`list` of `torch.Tensor`):
|
| 1426 |
+
A list of tensors that if specified are added to the residuals of transformer blocks.
|
| 1427 |
+
joint_attention_kwargs (`dict`, *optional*):
|
| 1428 |
+
A kwargs dictionary that if specified is passed along to the `AttentionProcessor` as defined under
|
| 1429 |
+
`self.processor` in
|
| 1430 |
+
[diffusers.models.attention_processor](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py).
|
| 1431 |
+
return_dict (`bool`, *optional*, defaults to `True`):
|
| 1432 |
+
Whether or not to return a [`~models.transformer_2d.Transformer2DModelOutput`] instead of a plain
|
| 1433 |
+
tuple.
|
| 1434 |
+
skip_layers (`list` of `int`, *optional*):
|
| 1435 |
+
A list of layer indices to skip during the forward pass.
|
| 1436 |
+
|
| 1437 |
+
Returns:
|
| 1438 |
+
If `return_dict` is True, an [`~models.transformer_2d.Transformer2DModelOutput`] is returned, otherwise a
|
| 1439 |
+
`tuple` where the first element is the sample tensor.
|
| 1440 |
+
"""
|
| 1441 |
+
if joint_attention_kwargs is not None:
|
| 1442 |
+
joint_attention_kwargs = joint_attention_kwargs.copy()
|
| 1443 |
+
lora_scale = joint_attention_kwargs.pop("scale", 1.0)
|
| 1444 |
+
else:
|
| 1445 |
+
lora_scale = 1.0
|
| 1446 |
+
|
| 1447 |
+
if USE_PEFT_BACKEND:
|
| 1448 |
+
# weight the lora layers by setting `lora_scale` for each PEFT layer
|
| 1449 |
+
scale_lora_layers(self, lora_scale)
|
| 1450 |
+
else:
|
| 1451 |
+
if joint_attention_kwargs is not None and joint_attention_kwargs.get("scale", None) is not None:
|
| 1452 |
+
logger.warning(
|
| 1453 |
+
"Passing `scale` via `joint_attention_kwargs` when not using the PEFT backend is ineffective."
|
| 1454 |
+
)
|
| 1455 |
+
|
| 1456 |
+
height, width = hidden_states.shape[-2:]
|
| 1457 |
+
|
| 1458 |
+
hidden_states = self.pos_embed(hidden_states) # takes care of adding positional embeddings too.
|
| 1459 |
+
temb = self.time_text_embed(timestep, pooled_projections)
|
| 1460 |
+
encoder_hidden_states = self.context_embedder(encoder_hidden_states)
|
| 1461 |
+
|
| 1462 |
+
if joint_attention_kwargs is not None and "ip_adapter_image_embeds" in joint_attention_kwargs:
|
| 1463 |
+
ip_adapter_image_embeds = joint_attention_kwargs.pop("ip_adapter_image_embeds")
|
| 1464 |
+
ip_hidden_states, ip_temb = self.image_proj(ip_adapter_image_embeds, timestep)
|
| 1465 |
+
|
| 1466 |
+
joint_attention_kwargs.update(ip_hidden_states=ip_hidden_states, temb=ip_temb)
|
| 1467 |
+
|
| 1468 |
+
for index_block, block in enumerate(self.transformer_blocks):
|
| 1469 |
+
# print("index: ", index_block)
|
| 1470 |
+
|
| 1471 |
+
# Skip specified layers
|
| 1472 |
+
is_skip = True if skip_layers is not None and index_block in skip_layers else False
|
| 1473 |
+
|
| 1474 |
+
if index_block >= (self.config.num_layers // 2) and map_aware_mask is not None:
|
| 1475 |
+
current_mask = map_aware_mask.to(hidden_states.device)
|
| 1476 |
+
else:
|
| 1477 |
+
current_mask = None
|
| 1478 |
+
|
| 1479 |
+
# print("transformer: map_aware_mask:", current_mask.shape if current_mask is not None else None)
|
| 1480 |
+
|
| 1481 |
+
if torch.is_grad_enabled() and self.gradient_checkpointing and not is_skip:
|
| 1482 |
+
encoder_hidden_states, hidden_states = self._gradient_checkpointing_func(
|
| 1483 |
+
block,
|
| 1484 |
+
hidden_states,
|
| 1485 |
+
encoder_hidden_states,
|
| 1486 |
+
temb,
|
| 1487 |
+
current_mask,
|
| 1488 |
+
joint_attention_kwargs,
|
| 1489 |
+
)
|
| 1490 |
+
elif not is_skip:
|
| 1491 |
+
encoder_hidden_states, hidden_states = block(
|
| 1492 |
+
hidden_states=hidden_states,
|
| 1493 |
+
encoder_hidden_states=encoder_hidden_states,
|
| 1494 |
+
temb=temb,
|
| 1495 |
+
map_aware_mask=current_mask,
|
| 1496 |
+
joint_attention_kwargs=joint_attention_kwargs,
|
| 1497 |
+
)
|
| 1498 |
+
|
| 1499 |
+
# controlnet residual
|
| 1500 |
+
if block_controlnet_hidden_states is not None and block.context_pre_only is False:
|
| 1501 |
+
interval_control = len(self.transformer_blocks) / len(block_controlnet_hidden_states)
|
| 1502 |
+
hidden_states = hidden_states + block_controlnet_hidden_states[int(index_block / interval_control)]
|
| 1503 |
+
|
| 1504 |
+
hidden_states = self.norm_out(hidden_states, temb)
|
| 1505 |
+
hidden_states = self.proj_out(hidden_states)
|
| 1506 |
+
|
| 1507 |
+
# unpatchify
|
| 1508 |
+
patch_size = self.config.patch_size
|
| 1509 |
+
height = height // patch_size
|
| 1510 |
+
width = width // patch_size
|
| 1511 |
+
|
| 1512 |
+
hidden_states = hidden_states.reshape(
|
| 1513 |
+
shape=(hidden_states.shape[0], height, width, patch_size, patch_size, self.out_channels)
|
| 1514 |
+
)
|
| 1515 |
+
hidden_states = torch.einsum("nhwpqc->nchpwq", hidden_states)
|
| 1516 |
+
output = hidden_states.reshape(
|
| 1517 |
+
shape=(hidden_states.shape[0], self.out_channels, height * patch_size, width * patch_size)
|
| 1518 |
+
)
|
| 1519 |
+
|
| 1520 |
+
if USE_PEFT_BACKEND:
|
| 1521 |
+
# remove `lora_scale` from each PEFT layer
|
| 1522 |
+
unscale_lora_layers(self, lora_scale)
|
| 1523 |
+
|
| 1524 |
+
if not return_dict:
|
| 1525 |
+
return (output,)
|
| 1526 |
+
|
| 1527 |
+
return Transformer2DModelOutput(sample=output)
|