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1 Parent(s): 9b3b77b

Update src/pipeline.py

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  1. src/pipeline.py +31 -944
src/pipeline.py CHANGED
@@ -1,958 +1,45 @@
1
  import torch
2
- from PIL import Image
3
  from diffusers import StableDiffusionXLPipeline
 
 
4
  from diffusers import DDIMScheduler
5
  from torch import Generator
6
  from loss import SchedulerWrapper
 
7
  from onediffx import compile_pipe, save_pipe, load_pipe
8
- import os
9
- from pydantic import BaseModel
10
- import time
11
- import numpy as np
12
- import torch
13
- from PIL import Image
14
- from pipelines.models import TextToImageRequest
15
- from torch import Generator
16
- import json
17
- from diffusers import StableDiffusionXLPipeline, DDIMScheduler
18
- import inspect
19
- from typing import Any, Callable, Dict, List, Optional, Tuple, Union
20
- from loss import SchedulerWrapper
21
- from onediffx import compile_pipe,load_pipe
22
- # Import necessary components
23
- from transformers import (
24
- CLIPImageProcessor,
25
- CLIPTextModel,
26
- CLIPTextModelWithProjection,
27
- CLIPTokenizer,
28
- CLIPVisionModelWithProjection,
29
- )
30
-
31
- from diffusers.callbacks import MultiPipelineCallbacks, PipelineCallback
32
- from diffusers.image_processor import PipelineImageInput, VaeImageProcessor
33
- from diffusers.loaders import (
34
- FromSingleFileMixin,
35
- IPAdapterMixin,
36
- StableDiffusionXLLoraLoaderMixin,
37
- TextualInversionLoaderMixin,
38
- )
39
- from diffusers.models import AutoencoderKL, ImageProjection, UNet2DConditionModel
40
- from diffusers.models.attention_processor import (
41
- AttnProcessor2_0,
42
- FusedAttnProcessor2_0,
43
- XFormersAttnProcessor,
44
- )
45
- from diffusers.models.lora import adjust_lora_scale_text_encoder
46
- from diffusers.schedulers import KarrasDiffusionSchedulers
47
- from diffusers.utils import (
48
- USE_PEFT_BACKEND,
49
- deprecate,
50
- is_invisible_watermark_available,
51
- is_torch_xla_available,
52
- logging,
53
- replace_example_docstring,
54
- scale_lora_layers,
55
- unscale_lora_layers,
56
- )
57
- from diffusers.utils.torch_utils import randn_tensor
58
- from diffusers.pipelines.pipeline_utils import DiffusionPipeline, StableDiffusionMixin
59
- from diffusers.pipelines.stable_diffusion_xl.pipeline_output import StableDiffusionXLPipelineOutput
60
-
61
- # Import watermark if available
62
- if is_invisible_watermark_available():
63
- from .watermark import StableDiffusionXLWatermarker
64
-
65
- # Check for XLA availability
66
- if is_torch_xla_available():
67
- import torch_xla.core.xla_model as xm
68
- XLA_AVAILABLE = True
69
- else:
70
- XLA_AVAILABLE = False
71
-
72
- logger = logging.get_logger(__name__)
73
-
74
- # Helper functions
75
- def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0):
76
- """Rescale noise configuration."""
77
- std_text = noise_pred_text.std(dim=list(range(1, noise_pred_text.ndim)), keepdim=True)
78
- std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True)
79
- noise_pred_rescaled = noise_cfg * (std_text / std_cfg)
80
- noise_cfg = guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg
81
- return noise_cfg
82
-
83
- # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps
84
- def retrieve_timesteps(
85
- scheduler,
86
- num_inference_steps: Optional[int] = None,
87
- device: Optional[Union[str, torch.device]] = None,
88
- timesteps: Optional[List[int]] = None,
89
- sigmas: Optional[List[float]] = None,
90
- **kwargs,
91
- ):
92
- if timesteps is not None and sigmas is not None:
93
- raise ValueError("Only one of `timesteps` or `sigmas` can be passed. Please choose one to set custom values")
94
- if timesteps is not None:
95
- accepts_timesteps = "timesteps" in set(inspect.signature(scheduler.set_timesteps).parameters.keys())
96
- if not accepts_timesteps:
97
- raise ValueError(
98
- f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom"
99
- f" timestep schedules. Please check whether you are using the correct scheduler."
100
- )
101
- scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs)
102
- timesteps = scheduler.timesteps
103
- num_inference_steps = len(timesteps)
104
- elif sigmas is not None:
105
- accept_sigmas = "sigmas" in set(inspect.signature(scheduler.set_timesteps).parameters.keys())
106
- if not accept_sigmas:
107
- raise ValueError(
108
- f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom"
109
- f" sigmas schedules. Please check whether you are using the correct scheduler."
110
- )
111
- scheduler.set_timesteps(sigmas=sigmas, device=device, **kwargs)
112
- timesteps = scheduler.timesteps
113
- num_inference_steps = len(timesteps)
114
- else:
115
- scheduler.set_timesteps(num_inference_steps, device=device, **kwargs)
116
- timesteps = scheduler.timesteps
117
- return timesteps, num_inference_steps
118
-
119
-
120
- class StableDiffusionXLPipeline_optimized(
121
- DiffusionPipeline,
122
- StableDiffusionMixin,
123
- FromSingleFileMixin,
124
- StableDiffusionXLLoraLoaderMixin,
125
- TextualInversionLoaderMixin,
126
- IPAdapterMixin,
127
- ):
128
-
129
- model_cpu_offload_seq = "text_encoder->text_encoder_2->image_encoder->unet->vae"
130
- _optional_components = [
131
- "tokenizer",
132
- "tokenizer_2",
133
- "text_encoder",
134
- "text_encoder_2",
135
- "image_encoder",
136
- "feature_extractor",
137
- ]
138
- _callback_tensor_inputs = [
139
- "latents",
140
- "prompt_embeds",
141
- "negative_prompt_embeds",
142
- "add_text_embeds",
143
- "add_time_ids",
144
- "negative_pooled_prompt_embeds",
145
- "negative_add_time_ids",
146
- ]
147
-
148
- def __init__(
149
- self,
150
- vae: AutoencoderKL,
151
- text_encoder: CLIPTextModel,
152
- text_encoder_2: CLIPTextModelWithProjection,
153
- tokenizer: CLIPTokenizer,
154
- tokenizer_2: CLIPTokenizer,
155
- unet: UNet2DConditionModel,
156
- scheduler: KarrasDiffusionSchedulers,
157
- image_encoder: CLIPVisionModelWithProjection = None,
158
- feature_extractor: CLIPImageProcessor = None,
159
- force_zeros_for_empty_prompt: bool = True,
160
- add_watermarker: Optional[bool] = None,
161
- ):
162
- super().__init__()
163
-
164
- self.register_modules(
165
- vae=vae,
166
- text_encoder=text_encoder,
167
- text_encoder_2=text_encoder_2,
168
- tokenizer=tokenizer,
169
- tokenizer_2=tokenizer_2,
170
- unet=unet,
171
- scheduler=scheduler,
172
- image_encoder=image_encoder,
173
- feature_extractor=feature_extractor,
174
- )
175
- self.register_to_config(force_zeros_for_empty_prompt=force_zeros_for_empty_prompt)
176
- self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1)
177
- self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor)
178
-
179
- self.default_sample_size = self.unet.config.sample_size
180
-
181
- add_watermarker = add_watermarker if add_watermarker is not None else is_invisible_watermark_available()
182
-
183
- if add_watermarker:
184
- self.watermark = StableDiffusionXLWatermarker()
185
- else:
186
- self.watermark = None
187
-
188
- def encode_prompt(
189
- self,
190
- prompt: str,
191
- prompt_2: Optional[str] = None,
192
- device: Optional[torch.device] = None,
193
- num_images_per_prompt: int = 1,
194
- do_classifier_free_guidance: bool = True,
195
- negative_prompt: Optional[str] = None,
196
- negative_prompt_2: Optional[str] = None,
197
- prompt_embeds: Optional[torch.Tensor] = None,
198
- negative_prompt_embeds: Optional[torch.Tensor] = None,
199
- pooled_prompt_embeds: Optional[torch.Tensor] = None,
200
- negative_pooled_prompt_embeds: Optional[torch.Tensor] = None,
201
- lora_scale: Optional[float] = None,
202
- clip_skip: Optional[int] = None,
203
- ):
204
- device = device or self._execution_device
205
-
206
- # set lora scale so that monkey patched LoRA
207
- # function of text encoder can correctly access it
208
- if lora_scale is not None and isinstance(self, StableDiffusionXLLoraLoaderMixin):
209
- self._lora_scale = lora_scale
210
-
211
- # dynamically adjust the LoRA scale
212
- if self.text_encoder is not None:
213
- if not USE_PEFT_BACKEND:
214
- adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
215
- else:
216
- scale_lora_layers(self.text_encoder, lora_scale)
217
-
218
- if self.text_encoder_2 is not None:
219
- if not USE_PEFT_BACKEND:
220
- adjust_lora_scale_text_encoder(self.text_encoder_2, lora_scale)
221
- else:
222
- scale_lora_layers(self.text_encoder_2, lora_scale)
223
-
224
- prompt = [prompt] if isinstance(prompt, str) else prompt
225
-
226
- if prompt is not None:
227
- batch_size = len(prompt)
228
- else:
229
- batch_size = prompt_embeds.shape[0]
230
-
231
- # Define tokenizers and text encoders
232
- tokenizers = [self.tokenizer, self.tokenizer_2] if self.tokenizer is not None else [self.tokenizer_2]
233
- text_encoders = (
234
- [self.text_encoder, self.text_encoder_2] if self.text_encoder is not None else [self.text_encoder_2]
235
- )
236
-
237
- if prompt_embeds is None:
238
- prompt_2 = prompt_2 or prompt
239
- prompt_2 = [prompt_2] if isinstance(prompt_2, str) else prompt_2
240
-
241
- # textual inversion: process multi-vector tokens if necessary
242
- prompt_embeds_list = []
243
- prompts = [prompt, prompt_2]
244
- for prompt, tokenizer, text_encoder in zip(prompts, tokenizers, text_encoders):
245
- if isinstance(self, TextualInversionLoaderMixin):
246
- prompt = self.maybe_convert_prompt(prompt, tokenizer)
247
-
248
- text_inputs = tokenizer(
249
- prompt,
250
- padding="max_length",
251
- max_length=tokenizer.model_max_length,
252
- truncation=True,
253
- return_tensors="pt",
254
- )
255
-
256
- text_input_ids = text_inputs.input_ids
257
- untruncated_ids = tokenizer(prompt, padding="longest", return_tensors="pt").input_ids
258
-
259
- if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(
260
- text_input_ids, untruncated_ids
261
- ):
262
- removed_text = tokenizer.batch_decode(untruncated_ids[:, tokenizer.model_max_length - 1 : -1])
263
- logger.warning(
264
- "The following part of your input was truncated because CLIP can only handle sequences up to"
265
- f" {tokenizer.model_max_length} tokens: {removed_text}"
266
- )
267
-
268
- prompt_embeds = text_encoder(text_input_ids.to(device), output_hidden_states=True)
269
-
270
- # We are only ALWAYS interested in the pooled output of the final text encoder
271
- pooled_prompt_embeds = prompt_embeds[0]
272
- if clip_skip is None:
273
- prompt_embeds = prompt_embeds.hidden_states[-2]
274
- else:
275
- # "2" because SDXL always indexes from the penultimate layer.
276
- prompt_embeds = prompt_embeds.hidden_states[-(clip_skip + 2)]
277
-
278
- prompt_embeds_list.append(prompt_embeds)
279
-
280
- prompt_embeds = torch.concat(prompt_embeds_list, dim=-1)
281
-
282
- # get unconditional embeddings for classifier free guidance
283
- zero_out_negative_prompt = negative_prompt is None and self.config.force_zeros_for_empty_prompt
284
- if do_classifier_free_guidance and negative_prompt_embeds is None and zero_out_negative_prompt:
285
- negative_prompt_embeds = torch.zeros_like(prompt_embeds)
286
- negative_pooled_prompt_embeds = torch.zeros_like(pooled_prompt_embeds)
287
- elif do_classifier_free_guidance and negative_prompt_embeds is None:
288
- negative_prompt = negative_prompt or ""
289
- negative_prompt_2 = negative_prompt_2 or negative_prompt
290
-
291
- # normalize str to list
292
- negative_prompt = batch_size * [negative_prompt] if isinstance(negative_prompt, str) else negative_prompt
293
- negative_prompt_2 = (
294
- batch_size * [negative_prompt_2] if isinstance(negative_prompt_2, str) else negative_prompt_2
295
- )
296
-
297
- uncond_tokens: List[str]
298
- if prompt is not None and type(prompt) is not type(negative_prompt):
299
- raise TypeError(
300
- f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !="
301
- f" {type(prompt)}."
302
- )
303
- elif batch_size != len(negative_prompt):
304
- raise ValueError(
305
- f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:"
306
- f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches"
307
- " the batch size of `prompt`."
308
- )
309
- else:
310
- uncond_tokens = [negative_prompt, negative_prompt_2]
311
-
312
- negative_prompt_embeds_list = []
313
- for negative_prompt, tokenizer, text_encoder in zip(uncond_tokens, tokenizers, text_encoders):
314
- if isinstance(self, TextualInversionLoaderMixin):
315
- negative_prompt = self.maybe_convert_prompt(negative_prompt, tokenizer)
316
-
317
- max_length = prompt_embeds.shape[1]
318
- uncond_input = tokenizer(
319
- negative_prompt,
320
- padding="max_length",
321
- max_length=max_length,
322
- truncation=True,
323
- return_tensors="pt",
324
- )
325
-
326
- negative_prompt_embeds = text_encoder(
327
- uncond_input.input_ids.to(device),
328
- output_hidden_states=True,
329
- )
330
- # We are only ALWAYS interested in the pooled output of the final text encoder
331
- negative_pooled_prompt_embeds = negative_prompt_embeds[0]
332
- negative_prompt_embeds = negative_prompt_embeds.hidden_states[-2]
333
-
334
- negative_prompt_embeds_list.append(negative_prompt_embeds)
335
-
336
- negative_prompt_embeds = torch.concat(negative_prompt_embeds_list, dim=-1)
337
-
338
- if self.text_encoder_2 is not None:
339
- prompt_embeds = prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device)
340
- else:
341
- prompt_embeds = prompt_embeds.to(dtype=self.unet.dtype, device=device)
342
-
343
- bs_embed, seq_len, _ = prompt_embeds.shape
344
- # duplicate text embeddings for each generation per prompt, using mps friendly method
345
- prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1)
346
- prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1)
347
-
348
- if do_classifier_free_guidance:
349
- # duplicate unconditional embeddings for each generation per prompt, using mps friendly method
350
- seq_len = negative_prompt_embeds.shape[1]
351
-
352
- if self.text_encoder_2 is not None:
353
- negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.text_encoder_2.dtype, device=device)
354
- else:
355
- negative_prompt_embeds = negative_prompt_embeds.to(dtype=self.unet.dtype, device=device)
356
-
357
- negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
358
- negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
359
-
360
- pooled_prompt_embeds = pooled_prompt_embeds.repeat(1, num_images_per_prompt).view(
361
- bs_embed * num_images_per_prompt, -1
362
- )
363
- if do_classifier_free_guidance:
364
- negative_pooled_prompt_embeds = negative_pooled_prompt_embeds.repeat(1, num_images_per_prompt).view(
365
- bs_embed * num_images_per_prompt, -1
366
- )
367
-
368
- if self.text_encoder is not None:
369
- if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND:
370
- # Retrieve the original scale by scaling back the LoRA layers
371
- unscale_lora_layers(self.text_encoder, lora_scale)
372
-
373
- if self.text_encoder_2 is not None:
374
- if isinstance(self, StableDiffusionXLLoraLoaderMixin) and USE_PEFT_BACKEND:
375
- # Retrieve the original scale by scaling back the LoRA layers
376
- unscale_lora_layers(self.text_encoder_2, lora_scale)
377
-
378
- return prompt_embeds, negative_prompt_embeds, pooled_prompt_embeds, negative_pooled_prompt_embeds
379
-
380
- # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image
381
- def encode_image(self, image, device, num_images_per_prompt, output_hidden_states=None):
382
- dtype = next(self.image_encoder.parameters()).dtype
383
-
384
- if not isinstance(image, torch.Tensor):
385
- image = self.feature_extractor(image, return_tensors="pt").pixel_values
386
-
387
- image = image.to(device=device, dtype=dtype)
388
- if output_hidden_states:
389
- image_enc_hidden_states = self.image_encoder(image, output_hidden_states=True).hidden_states[-2]
390
- image_enc_hidden_states = image_enc_hidden_states.repeat_interleave(num_images_per_prompt, dim=0)
391
- uncond_image_enc_hidden_states = self.image_encoder(
392
- torch.zeros_like(image), output_hidden_states=True
393
- ).hidden_states[-2]
394
- uncond_image_enc_hidden_states = uncond_image_enc_hidden_states.repeat_interleave(
395
- num_images_per_prompt, dim=0
396
- )
397
- return image_enc_hidden_states, uncond_image_enc_hidden_states
398
- else:
399
- image_embeds = self.image_encoder(image).image_embeds
400
- image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0)
401
- uncond_image_embeds = torch.zeros_like(image_embeds)
402
-
403
- return image_embeds, uncond_image_embeds
404
-
405
- # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_ip_adapter_image_embeds
406
- def prepare_ip_adapter_image_embeds(
407
- self, ip_adapter_image, ip_adapter_image_embeds, device, num_images_per_prompt, do_classifier_free_guidance
408
- ):
409
- image_embeds = []
410
- if do_classifier_free_guidance:
411
- negative_image_embeds = []
412
- if ip_adapter_image_embeds is None:
413
- if not isinstance(ip_adapter_image, list):
414
- ip_adapter_image = [ip_adapter_image]
415
-
416
- if len(ip_adapter_image) != len(self.unet.encoder_hid_proj.image_projection_layers):
417
- raise ValueError(
418
- f"`ip_adapter_image` must have same length as the number of IP Adapters. Got {len(ip_adapter_image)} images and {len(self.unet.encoder_hid_proj.image_projection_layers)} IP Adapters."
419
- )
420
-
421
- for single_ip_adapter_image, image_proj_layer in zip(
422
- ip_adapter_image, self.unet.encoder_hid_proj.image_projection_layers
423
- ):
424
- output_hidden_state = not isinstance(image_proj_layer, ImageProjection)
425
- single_image_embeds, single_negative_image_embeds = self.encode_image(
426
- single_ip_adapter_image, device, 1, output_hidden_state
427
- )
428
-
429
- image_embeds.append(single_image_embeds[None, :])
430
- if do_classifier_free_guidance:
431
- negative_image_embeds.append(single_negative_image_embeds[None, :])
432
- else:
433
- for single_image_embeds in ip_adapter_image_embeds:
434
- if do_classifier_free_guidance:
435
- single_negative_image_embeds, single_image_embeds = single_image_embeds.chunk(2)
436
- negative_image_embeds.append(single_negative_image_embeds)
437
- image_embeds.append(single_image_embeds)
438
-
439
- ip_adapter_image_embeds = []
440
- for i, single_image_embeds in enumerate(image_embeds):
441
- single_image_embeds = torch.cat([single_image_embeds] * num_images_per_prompt, dim=0)
442
- if do_classifier_free_guidance:
443
- single_negative_image_embeds = torch.cat([negative_image_embeds[i]] * num_images_per_prompt, dim=0)
444
- single_image_embeds = torch.cat([single_negative_image_embeds, single_image_embeds], dim=0)
445
-
446
- single_image_embeds = single_image_embeds.to(device=device)
447
- ip_adapter_image_embeds.append(single_image_embeds)
448
-
449
- return ip_adapter_image_embeds
450
-
451
- # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs
452
- def prepare_extra_step_kwargs(self, generator, eta):
453
- # prepare extra kwargs for the scheduler step, since not all schedulers have the same signature
454
- # eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers.
455
- # eta corresponds to η in DDIM paper: https://arxiv.org/abs/2010.02502
456
- # and should be between [0, 1]
457
-
458
- accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys())
459
- extra_step_kwargs = {}
460
- if accepts_eta:
461
- extra_step_kwargs["eta"] = eta
462
-
463
- # check if the scheduler accepts generator
464
- accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys())
465
- if accepts_generator:
466
- extra_step_kwargs["generator"] = generator
467
- return extra_step_kwargs
468
-
469
- # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_latents
470
- def prepare_latents(self, batch_size, num_channels_latents, height, width, dtype, device, generator, latents=None):
471
- shape = (
472
- batch_size,
473
- num_channels_latents,
474
- int(height) // self.vae_scale_factor,
475
- int(width) // self.vae_scale_factor,
476
- )
477
- if isinstance(generator, list) and len(generator) != batch_size:
478
- raise ValueError(
479
- f"You have passed a list of generators of length {len(generator)}, but requested an effective batch"
480
- f" size of {batch_size}. Make sure the batch size matches the length of the generators."
481
- )
482
-
483
- if latents is None:
484
- latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype)
485
- else:
486
- latents = latents.to(device)
487
-
488
- # scale the initial noise by the standard deviation required by the scheduler
489
- latents = latents * self.scheduler.init_noise_sigma
490
- return latents
491
-
492
- def _get_add_time_ids(
493
- self, original_size, crops_coords_top_left, target_size, dtype, text_encoder_projection_dim=None
494
- ):
495
- add_time_ids = list(original_size + crops_coords_top_left + target_size)
496
-
497
- passed_add_embed_dim = (
498
- self.unet.config.addition_time_embed_dim * len(add_time_ids) + text_encoder_projection_dim
499
- )
500
- expected_add_embed_dim = self.unet.add_embedding.linear_1.in_features
501
-
502
- if expected_add_embed_dim != passed_add_embed_dim:
503
- raise ValueError(
504
- f"Model expects an added time embedding vector of length {expected_add_embed_dim}, but a vector of {passed_add_embed_dim} was created. The model has an incorrect config. Please check `unet.config.time_embedding_type` and `text_encoder_2.config.projection_dim`."
505
- )
506
-
507
- add_time_ids = torch.tensor([add_time_ids], dtype=dtype)
508
- return add_time_ids
509
-
510
- def upcast_vae(self):
511
- dtype = self.vae.dtype
512
- self.vae.to(dtype=torch.float32)
513
- use_torch_2_0_or_xformers = isinstance(
514
- self.vae.decoder.mid_block.attentions[0].processor,
515
- (
516
- AttnProcessor2_0,
517
- XFormersAttnProcessor,
518
- FusedAttnProcessor2_0,
519
- ),
520
- )
521
- # if xformers or torch_2_0 is used attention block does not need
522
- # to be in float32 which can save lots of memory
523
- if use_torch_2_0_or_xformers:
524
- self.vae.post_quant_conv.to(dtype)
525
- self.vae.decoder.conv_in.to(dtype)
526
- self.vae.decoder.mid_block.to(dtype)
527
-
528
- # Copied from diffusers.pipelines.latent_consistency_models.pipeline_latent_consistency_text2img.LatentConsistencyModelPipeline.get_guidance_scale_embedding
529
- def get_guidance_scale_embedding(
530
- self, w: torch.Tensor, embedding_dim: int = 512, dtype: torch.dtype = torch.float32
531
- ) -> torch.Tensor:
532
- """
533
- See https://github.com/google-research/vdm/blob/dc27b98a554f65cdc654b800da5aa1846545d41b/model_vdm.py#L298
534
-
535
- Args:
536
- w (`torch.Tensor`):
537
- Generate embedding vectors with a specified guidance scale to subsequently enrich timestep embeddings.
538
- embedding_dim (`int`, *optional*, defaults to 512):
539
- Dimension of the embeddings to generate.
540
- dtype (`torch.dtype`, *optional*, defaults to `torch.float32`):
541
- Data type of the generated embeddings.
542
-
543
- Returns:
544
- `torch.Tensor`: Embedding vectors with shape `(len(w), embedding_dim)`.
545
- """
546
- assert len(w.shape) == 1
547
- w = w * 1000.0
548
-
549
- half_dim = embedding_dim // 2
550
- emb = torch.log(torch.tensor(10000.0)) / (half_dim - 1)
551
- emb = torch.exp(torch.arange(half_dim, dtype=dtype) * -emb)
552
- emb = w.to(dtype)[:, None] * emb[None, :]
553
- emb = torch.cat([torch.sin(emb), torch.cos(emb)], dim=1)
554
- if embedding_dim % 2 == 1: # zero pad
555
- emb = torch.nn.functional.pad(emb, (0, 1))
556
- assert emb.shape == (w.shape[0], embedding_dim)
557
- return emb
558
-
559
- @property
560
- def guidance_scale(self):
561
- return self._guidance_scale
562
-
563
- @property
564
- def guidance_rescale(self):
565
- return self._guidance_rescale
566
-
567
- @property
568
- def clip_skip(self):
569
- return self._clip_skip
570
-
571
- # here `guidance_scale` is defined analog to the guidance weight `w` of equation (2)
572
- # of the Imagen paper: https://arxiv.org/pdf/2205.11487.pdf . `guidance_scale = 1`
573
- # corresponds to doing no classifier free guidance.
574
- @property
575
- def do_classifier_free_guidance(self):
576
- return self._guidance_scale > 1 and self.unet.config.time_cond_proj_dim is None
577
-
578
- @property
579
- def cross_attention_kwargs(self):
580
- return self._cross_attention_kwargs
581
-
582
- @property
583
- def denoising_end(self):
584
- return self._denoising_end
585
-
586
- @property
587
- def num_timesteps(self):
588
- return self._num_timesteps
589
-
590
- @property
591
- def interrupt(self):
592
- return self._interrupt
593
-
594
- @torch.no_grad()
595
- def __call__(
596
- self,
597
- prompt: Union[str, List[str]] = None,
598
- prompt_2: Optional[Union[str, List[str]]] = None,
599
- height: Optional[int] = None,
600
- width: Optional[int] = None,
601
- num_inference_steps: int = 50,
602
- timesteps: List[int] = None,
603
- sigmas: List[float] = None,
604
- denoising_end: Optional[float] = None,
605
- guidance_scale: float = 5.0,
606
- negative_prompt: Optional[Union[str, List[str]]] = None,
607
- negative_prompt_2: Optional[Union[str, List[str]]] = None,
608
- num_images_per_prompt: Optional[int] = 1,
609
- eta: float = 0.0,
610
- generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None,
611
- latents: Optional[torch.Tensor] = None,
612
- prompt_embeds: Optional[torch.Tensor] = None,
613
- negative_prompt_embeds: Optional[torch.Tensor] = None,
614
- pooled_prompt_embeds: Optional[torch.Tensor] = None,
615
- negative_pooled_prompt_embeds: Optional[torch.Tensor] = None,
616
- ip_adapter_image: Optional[PipelineImageInput] = None,
617
- ip_adapter_image_embeds: Optional[List[torch.Tensor]] = None,
618
- output_type: Optional[str] = "pil",
619
- return_dict: bool = True,
620
- cross_attention_kwargs: Optional[Dict[str, Any]] = None,
621
- guidance_rescale: float = 0.0,
622
- end_cfg: float = 0.7,
623
- original_size: Optional[Tuple[int, int]] = None,
624
- crops_coords_top_left: Tuple[int, int] = (0, 0),
625
- target_size: Optional[Tuple[int, int]] = None,
626
- negative_original_size: Optional[Tuple[int, int]] = None,
627
- negative_crops_coords_top_left: Tuple[int, int] = (0, 0),
628
- negative_target_size: Optional[Tuple[int, int]] = None,
629
- clip_skip: Optional[int] = None,
630
- callback_on_step_end: Optional[
631
- Union[Callable[[int, int, Dict], None], PipelineCallback, MultiPipelineCallbacks]
632
- ] = None,
633
- callback_on_step_end_tensor_inputs: List[str] = ["latents"],
634
- **kwargs,
635
- ):
636
- callback = kwargs.pop("callback", None)
637
- callback_steps = kwargs.pop("callback_steps", None)
638
-
639
- if callback is not None:
640
- deprecate(
641
- "callback",
642
- "1.0.0",
643
- "Passing `callback` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`",
644
- )
645
- if callback_steps is not None:
646
- deprecate(
647
- "callback_steps",
648
- "1.0.0",
649
- "Passing `callback_steps` as an input argument to `__call__` is deprecated, consider use `callback_on_step_end`",
650
- )
651
-
652
- if isinstance(callback_on_step_end, (PipelineCallback, MultiPipelineCallbacks)):
653
- callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs
654
-
655
- # 0. Default height and width to unet
656
- height = height or self.default_sample_size * self.vae_scale_factor
657
- width = width or self.default_sample_size * self.vae_scale_factor
658
-
659
- original_size = original_size or (height, width)
660
- target_size = target_size or (height, width)
661
-
662
- self._guidance_scale = guidance_scale
663
- self._guidance_rescale = guidance_rescale
664
- self._clip_skip = clip_skip
665
- self._cross_attention_kwargs = cross_attention_kwargs
666
- self._denoising_end = denoising_end
667
- self._interrupt = False
668
-
669
- # 2. Define call parameters
670
- if prompt is not None and isinstance(prompt, str):
671
- batch_size = 1
672
- elif prompt is not None and isinstance(prompt, list):
673
- batch_size = len(prompt)
674
- else:
675
- batch_size = prompt_embeds.shape[0]
676
-
677
- device = self._execution_device
678
-
679
- # 3. Encode input prompt
680
- lora_scale = (
681
- self.cross_attention_kwargs.get("scale", None) if self.cross_attention_kwargs is not None else None
682
- )
683
-
684
- (
685
- prompt_embeds,
686
- negative_prompt_embeds,
687
- pooled_prompt_embeds,
688
- negative_pooled_prompt_embeds,
689
- ) = self.encode_prompt(
690
- prompt=prompt,
691
- prompt_2=prompt_2,
692
- device=device,
693
- num_images_per_prompt=num_images_per_prompt,
694
- do_classifier_free_guidance=self.do_classifier_free_guidance,
695
- negative_prompt=negative_prompt,
696
- negative_prompt_2=negative_prompt_2,
697
- prompt_embeds=prompt_embeds,
698
- negative_prompt_embeds=negative_prompt_embeds,
699
- pooled_prompt_embeds=pooled_prompt_embeds,
700
- negative_pooled_prompt_embeds=negative_pooled_prompt_embeds,
701
- lora_scale=lora_scale,
702
- clip_skip=self.clip_skip,
703
- )
704
-
705
- # 4. Prepare timesteps
706
- timesteps, num_inference_steps = retrieve_timesteps(
707
- self.scheduler, num_inference_steps, device, timesteps, sigmas
708
- )
709
-
710
- # 5. Prepare latent variables
711
- num_channels_latents = self.unet.config.in_channels
712
- latents = self.prepare_latents(
713
- batch_size * num_images_per_prompt,
714
- num_channels_latents,
715
- height,
716
- width,
717
- prompt_embeds.dtype,
718
- device,
719
- generator,
720
- latents,
721
- )
722
-
723
- # 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline
724
- extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta)
725
-
726
- # 7. Prepare added time ids & embeddings
727
- add_text_embeds = pooled_prompt_embeds
728
- if self.text_encoder_2 is None:
729
- text_encoder_projection_dim = int(pooled_prompt_embeds.shape[-1])
730
- else:
731
- text_encoder_projection_dim = self.text_encoder_2.config.projection_dim
732
-
733
- add_time_ids = self._get_add_time_ids(
734
- original_size,
735
- crops_coords_top_left,
736
- target_size,
737
- dtype=prompt_embeds.dtype,
738
- text_encoder_projection_dim=text_encoder_projection_dim,
739
- )
740
- if negative_original_size is not None and negative_target_size is not None:
741
- negative_add_time_ids = self._get_add_time_ids(
742
- negative_original_size,
743
- negative_crops_coords_top_left,
744
- negative_target_size,
745
- dtype=prompt_embeds.dtype,
746
- text_encoder_projection_dim=text_encoder_projection_dim,
747
- )
748
- else:
749
- negative_add_time_ids = add_time_ids
750
-
751
- if self.do_classifier_free_guidance:
752
- prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds], dim=0)
753
- add_text_embeds = torch.cat([negative_pooled_prompt_embeds, add_text_embeds], dim=0)
754
- add_time_ids = torch.cat([negative_add_time_ids, add_time_ids], dim=0)
755
-
756
- prompt_embeds = prompt_embeds.to(device)
757
- add_text_embeds = add_text_embeds.to(device)
758
- add_time_ids = add_time_ids.to(device).repeat(batch_size * num_images_per_prompt, 1)
759
-
760
- if ip_adapter_image is not None or ip_adapter_image_embeds is not None:
761
- image_embeds = self.prepare_ip_adapter_image_embeds(
762
- ip_adapter_image,
763
- ip_adapter_image_embeds,
764
- device,
765
- batch_size * num_images_per_prompt,
766
- self.do_classifier_free_guidance,
767
- )
768
-
769
- # 8. Denoising loop
770
- num_warmup_steps = max(len(timesteps) - num_inference_steps * self.scheduler.order, 0)
771
-
772
- # 8.1 Apply denoising_end
773
- if (
774
- self.denoising_end is not None
775
- and isinstance(self.denoising_end, float)
776
- and self.denoising_end > 0
777
- and self.denoising_end < 1
778
- ):
779
- discrete_timestep_cutoff = int(
780
- round(
781
- self.scheduler.config.num_train_timesteps
782
- - (self.denoising_end * self.scheduler.config.num_train_timesteps)
783
- )
784
- )
785
- num_inference_steps = len(list(filter(lambda ts: ts >= discrete_timestep_cutoff, timesteps)))
786
- timesteps = timesteps[:num_inference_steps]
787
-
788
- # 9. Optionally get Guidance Scale Embedding
789
- timestep_cond = None
790
- if self.unet.config.time_cond_proj_dim is not None:
791
- guidance_scale_tensor = torch.tensor(self.guidance_scale - 1).repeat(batch_size * num_images_per_prompt)
792
- timestep_cond = self.get_guidance_scale_embedding(
793
- guidance_scale_tensor, embedding_dim=self.unet.config.time_cond_proj_dim
794
- ).to(device=device, dtype=latents.dtype)
795
-
796
- self._num_timesteps = len(timesteps)
797
- with self.progress_bar(total=num_inference_steps) as progress_bar:
798
- do_classifier_free_guidance = self.do_classifier_free_guidance
799
- for i, t in enumerate(timesteps):
800
- if self.interrupt:
801
- continue
802
- if end_cfg is not None and i / num_inference_steps > end_cfg and do_classifier_free_guidance:
803
- do_classifier_free_guidance = False
804
- prompt_embeds = 1.5*torch.chunk(prompt_embeds, 2, dim=0)[-1]
805
- add_text_embeds = 1.5*torch.chunk(add_text_embeds, 2, dim=0)[-1]
806
- add_time_ids = 1.25*torch.chunk(add_time_ids, 2, dim=0)[-1]
807
- # expand the latents if we are doing classifier free guidance
808
- latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents
809
-
810
- latent_model_input = self.scheduler.scale_model_input(latent_model_input, t)
811
-
812
- # predict the noise residual
813
- added_cond_kwargs = {"text_embeds": add_text_embeds, "time_ids": add_time_ids}
814
- if ip_adapter_image is not None or ip_adapter_image_embeds is not None:
815
- added_cond_kwargs["image_embeds"] = image_embeds
816
- noise_pred = self.unet(
817
- latent_model_input,
818
- t,
819
- encoder_hidden_states=prompt_embeds,
820
- timestep_cond=timestep_cond,
821
- cross_attention_kwargs=self.cross_attention_kwargs,
822
- added_cond_kwargs=added_cond_kwargs,
823
- return_dict=False,
824
- )[0]
825
-
826
- # perform guidance
827
- if do_classifier_free_guidance:
828
- noise_pred_uncond, noise_pred_text = noise_pred.chunk(2)
829
- noise_pred = noise_pred_uncond + self.guidance_scale * (noise_pred_text - noise_pred_uncond)
830
-
831
- if do_classifier_free_guidance and self.guidance_rescale > 0.0:
832
- # Based on 3.4. in https://arxiv.org/pdf/2305.08891.pdf
833
- noise_pred = rescale_noise_cfg(noise_pred, noise_pred_text, guidance_rescale=self.guidance_rescale)
834
-
835
- # compute the previous noisy sample x_t -> x_t-1
836
- latents_dtype = latents.dtype
837
- latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0]
838
- if latents.dtype != latents_dtype:
839
- if torch.backends.mps.is_available():
840
- # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272
841
- latents = latents.to(latents_dtype)
842
-
843
- if callback_on_step_end is not None:
844
- callback_kwargs = {}
845
- for k in callback_on_step_end_tensor_inputs:
846
- callback_kwargs[k] = locals()[k]
847
- callback_outputs = callback_on_step_end(self, i, t, callback_kwargs)
848
-
849
- latents = callback_outputs.pop("latents", latents)
850
- prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds)
851
- negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds)
852
- add_text_embeds = callback_outputs.pop("add_text_embeds", add_text_embeds)
853
- negative_pooled_prompt_embeds = callback_outputs.pop(
854
- "negative_pooled_prompt_embeds", negative_pooled_prompt_embeds
855
- )
856
- add_time_ids = callback_outputs.pop("add_time_ids", add_time_ids)
857
- negative_add_time_ids = callback_outputs.pop("negative_add_time_ids", negative_add_time_ids)
858
-
859
- # call the callback, if provided
860
- if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0):
861
- progress_bar.update()
862
- if callback is not None and i % callback_steps == 0:
863
- step_idx = i // getattr(self.scheduler, "order", 1)
864
- callback(step_idx, t, latents)
865
-
866
- if XLA_AVAILABLE:
867
- xm.mark_step()
868
-
869
- if not output_type == "latent":
870
- # make sure the VAE is in float32 mode, as it overflows in float16
871
- needs_upcasting = self.vae.dtype == torch.float16 and self.vae.config.force_upcast
872
-
873
- if needs_upcasting:
874
- self.upcast_vae()
875
- latents = latents.to(next(iter(self.vae.post_quant_conv.parameters())).dtype)
876
- elif latents.dtype != self.vae.dtype:
877
- if torch.backends.mps.is_available():
878
- # some platforms (eg. apple mps) misbehave due to a pytorch bug: https://github.com/pytorch/pytorch/pull/99272
879
- self.vae = self.vae.to(latents.dtype)
880
-
881
- # unscale/denormalize the latents
882
- # denormalize with the mean and std if available and not None
883
- has_latents_mean = hasattr(self.vae.config, "latents_mean") and self.vae.config.latents_mean is not None
884
- has_latents_std = hasattr(self.vae.config, "latents_std") and self.vae.config.latents_std is not None
885
- if has_latents_mean and has_latents_std:
886
- latents_mean = (
887
- torch.tensor(self.vae.config.latents_mean).view(1, 4, 1, 1).to(latents.device, latents.dtype)
888
- )
889
- latents_std = (
890
- torch.tensor(self.vae.config.latents_std).view(1, 4, 1, 1).to(latents.device, latents.dtype)
891
- )
892
- latents = latents * latents_std / self.vae.config.scaling_factor + latents_mean
893
- else:
894
- latents = latents / self.vae.config.scaling_factor
895
-
896
- image = self.vae.decode(latents, return_dict=False)[0]
897
-
898
- # cast back to fp16 if needed
899
- if needs_upcasting:
900
- self.vae.to(dtype=torch.float16)
901
- else:
902
- image = latents
903
-
904
- if not output_type == "latent":
905
- # apply watermark if available
906
- if self.watermark is not None:
907
- image = self.watermark.apply_watermark(image)
908
-
909
- image = self.image_processor.postprocess(image, output_type=output_type)
910
-
911
- # Offload all models
912
- self.maybe_free_model_hooks()
913
-
914
- if not return_dict:
915
- return (image,)
916
-
917
- return StableDiffusionXLPipelineOutput(images=image)
918
-
919
-
920
-
921
 
922
  def callback_dynamic_cfg(pipe, step_index, timestep, callback_kwargs):
923
- if step_index == int(pipe.num_timesteps * 0.88):
924
- callback_kwargs['prompt_embeds'] = callback_kwargs['prompt_embeds'].chunk(2)[-1]
925
- callback_kwargs['add_text_embeds'] = callback_kwargs['add_text_embeds'].chunk(2)[-1]
926
- callback_kwargs['add_time_ids'] = callback_kwargs['add_time_ids'].chunk(2)[-1]
927
- pipe._guidance_scale = 0.1
 
928
  return callback_kwargs
929
 
930
  def load_pipeline(pipeline=None) -> StableDiffusionXLPipeline:
931
- if not pipeline:
932
- pipeline = StableDiffusionXLPipeline_optimized.from_pretrained(
933
- "stablediffusionapi/newdream-sdxl-20",
934
- torch_dtype=torch.float16,
935
- ).to("cuda")
936
-
937
- pipeline.scheduler = SchedulerWrapper(DDIMScheduler.from_config(pipeline.scheduler.config))
938
- pipeline = compile_pipe(pipeline)
939
- load_pipe(pipeline, dir="/home/sandbox/.cache/")
940
-
941
- # Warmup runs
942
- for _ in range(1):
943
- deepcache_output = pipeline(
944
- prompt="warmup",
945
- output_type="pil",
946
- num_inference_steps=20
947
- )
948
- pipeline.scheduler.prepare_loss()
949
- for _ in range(2):
950
- pipeline(
951
- prompt="warmup",
952
- output_type="pil",
953
- num_inference_steps=20
954
- )
955
- return pipeline
956
 
957
  def infer(request: TextToImageRequest, pipeline: StableDiffusionXLPipeline) -> Image:
958
  if request.seed is None:
 
1
  import torch
2
+ from PIL.Image import Image
3
  from diffusers import StableDiffusionXLPipeline
4
+
5
+ from pipelines.models import TextToImageRequest
6
  from diffusers import DDIMScheduler
7
  from torch import Generator
8
  from loss import SchedulerWrapper
9
+ from utils import register_normal_pipeline, register_faster_forward, register_parallel_pipeline, seed_everything
10
  from onediffx import compile_pipe, save_pipe, load_pipe
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
11
 
12
  def callback_dynamic_cfg(pipe, step_index, timestep, callback_kwargs):
13
+ if step_index == int(pipe.num_timesteps * 0.78):
14
+ callback_kwargs['prompt_embeds'] = callback_kwargs['prompt_embeds'].chunk(2)[-1]
15
+ callback_kwargs['add_text_embeds'] = callback_kwargs['add_text_embeds'].chunk(2)[-1]
16
+ callback_kwargs['add_time_ids'] = callback_kwargs['add_time_ids'].chunk(2)[-1]
17
+ pipe._guidance_scale = 0.1
18
+
19
  return callback_kwargs
20
 
21
  def load_pipeline(pipeline=None) -> StableDiffusionXLPipeline:
22
+ if not pipeline:
23
+ pipeline = StableDiffusionXLPipeline.from_pretrained(
24
+ "stablediffusionapi/newdream-sdxl-20",
25
+ torch_dtype=torch.float16,
26
+ ).to("cuda")
27
+
28
+ # Register optimizations for performance
29
+ register_parallel_pipeline(pipeline)
30
+ register_faster_forward(pipeline.unet)
31
+
32
+ pipeline.scheduler = SchedulerWrapper(DDIMScheduler.from_config(pipeline.scheduler.config))
33
+
34
+ pipeline = compile_pipe(pipeline)
35
+ load_pipe(pipeline, dir="/home/sandbox/.cache/huggingface/hub/models--RobertML--cached-pipe-02/snapshots/58d70deae87034cce351b780b48841f9746d4ad7")
36
+
37
+ for _ in range(1):
38
+ deepcache_output = pipeline(prompt="telestereography, unstrengthen, preadministrator, copatroness, hyperpersonal, paramountness, paranoid, guaniferous", output_type="pil", num_inference_steps=20)
39
+ # pipeline.scheduler.prepare_loss()
40
+ for _ in range(2):
41
+ pipeline(prompt="telestereography, unstrengthen, preadministrator, copatroness, hyperpersonal, paramountness, paranoid, guaniferous", output_type="pil", num_inference_steps=20)
42
+ return pipeline
 
 
 
 
43
 
44
  def infer(request: TextToImageRequest, pipeline: StableDiffusionXLPipeline) -> Image:
45
  if request.seed is None: