[Sana-4K] (#10537)

* [Sana 4K]
add 4K support for Sana

* [Sana-4K] fix SanaPAGPipeline

* add VAE automatically tiling function;

* set clean_caption to False;

* add warnings for VAE OOM.

* style

---------
Co-authored-by: yiyixuxu <yixu310@gmail.com>

src/diffusers/pipelines/pag/pipeline_pag_sana.py

@@ -16,6 +16,7 @@ import html
 import inspect
 import re
 import urllib.parse as ul
+import warnings
 from typing import Callable, Dict, List, Optional, Tuple, Union
 
 import torch
@@ -41,6 +42,7 @@ from ..pixart_alpha.pipeline_pixart_alpha import (
     ASPECT_RATIO_1024_BIN,
 )
 from ..pixart_alpha.pipeline_pixart_sigma import ASPECT_RATIO_2048_BIN
+from ..sana.pipeline_sana import ASPECT_RATIO_4096_BIN
 from .pag_utils import PAGMixin
 
 
@@ -639,7 +641,7 @@ class SanaPAGPipeline(DiffusionPipeline, PAGMixin):
         negative_prompt_attention_mask: Optional[torch.Tensor] = None,
         output_type: Optional[str] = "pil",
         return_dict: bool = True,
-        clean_caption: bool = True,
+        clean_caption: bool = False,
         use_resolution_binning: bool = True,
         callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None,
         callback_on_step_end_tensor_inputs: List[str] = ["latents"],
@@ -755,7 +757,9 @@ class SanaPAGPipeline(DiffusionPipeline, PAGMixin):
             callback_on_step_end_tensor_inputs = callback_on_step_end.tensor_inputs
 
         if use_resolution_binning:
-            if self.transformer.config.sample_size == 64:
+            if self.transformer.config.sample_size == 128:
+                aspect_ratio_bin = ASPECT_RATIO_4096_BIN
+            elif self.transformer.config.sample_size == 64:
                 aspect_ratio_bin = ASPECT_RATIO_2048_BIN
             elif self.transformer.config.sample_size == 32:
                 aspect_ratio_bin = ASPECT_RATIO_1024_BIN
@@ -912,7 +916,14 @@ class SanaPAGPipeline(DiffusionPipeline, PAGMixin):
             image = latents
         else:
             latents = latents.to(self.vae.dtype)
-            image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0]
+            try:
+                image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0]
+            except torch.cuda.OutOfMemoryError as e:
+                warnings.warn(
+                    f"{e}. \n"
+                    f"Try to use VAE tiling for large images. For example: \n"
+                    f"pipe.vae.enable_tiling(tile_sample_min_width=512, tile_sample_min_height=512)"
+                )
             if use_resolution_binning:
                 image = self.image_processor.resize_and_crop_tensor(image, orig_width, orig_height)
 

src/diffusers/pipelines/sana/pipeline_sana.py

@@ -16,6 +16,7 @@ import html
 import inspect
 import re
 import urllib.parse as ul
+import warnings
 from typing import Any, Callable, Dict, List, Optional, Tuple, Union
 
 import torch
@@ -953,7 +954,14 @@ class SanaPipeline(DiffusionPipeline, SanaLoraLoaderMixin):
             image = latents
         else:
             latents = latents.to(self.vae.dtype)
-            image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0]
+            try:
+                image = self.vae.decode(latents / self.vae.config.scaling_factor, return_dict=False)[0]
+            except torch.cuda.OutOfMemoryError as e:
+                warnings.warn(
+                    f"{e}. \n"
+                    f"Try to use VAE tiling for large images. For example: \n"
+                    f"pipe.vae.enable_tiling(tile_sample_min_width=512, tile_sample_min_height=512)"
+                )
             if use_resolution_binning:
                 image = self.image_processor.resize_and_crop_tensor(image, orig_width, orig_height)