Refactor progress bar (#242)

* Refactor progress bar of pipeline __call__

* Make any tqdm configs available

* remove init

* add some tests

* remove file

* finish

* make style

* improve progress bar test
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>

src/diffusers/pipeline_utils.py

@@ -23,6 +23,7 @@ import torch
 
 from huggingface_hub import snapshot_download
 from PIL import Image
+from tqdm.auto import tqdm
 
 from .configuration_utils import ConfigMixin
 from .utils import DIFFUSERS_CACHE, logging
@@ -266,3 +267,16 @@ class DiffusionPipeline(ConfigMixin):
         pil_images = [Image.fromarray(image) for image in images]
 
         return pil_images
+
+    def progress_bar(self, iterable):
+        if not hasattr(self, "_progress_bar_config"):
+            self._progress_bar_config = {}
+        elif not isinstance(self._progress_bar_config, dict):
+            raise ValueError(
+                f"`self._progress_bar_config` should be of type `dict`, but is {type(self._progress_bar_config)}."
+            )
+
+        return tqdm(iterable, **self._progress_bar_config)
+
+    def set_progress_bar_config(self, **kwargs):
+        self._progress_bar_config = kwargs

src/diffusers/pipelines/ddim/pipeline_ddim.py

@@ -18,8 +18,6 @@ import warnings
 
 import torch
 
-from tqdm.auto import tqdm
-
 from ...pipeline_utils import DiffusionPipeline
 
 
@@ -56,7 +54,7 @@ class DDIMPipeline(DiffusionPipeline):
         # set step values
         self.scheduler.set_timesteps(num_inference_steps)
 
-        for t in tqdm(self.scheduler.timesteps):
+        for t in self.progress_bar(self.scheduler.timesteps):
             # 1. predict noise model_output
             model_output = self.unet(image, t)["sample"]
 

src/diffusers/pipelines/ddpm/pipeline_ddpm.py

@@ -18,8 +18,6 @@ import warnings
 
 import torch
 
-from tqdm.auto import tqdm
-
 from ...pipeline_utils import DiffusionPipeline
 
 
@@ -53,7 +51,7 @@ class DDPMPipeline(DiffusionPipeline):
         # set step values
         self.scheduler.set_timesteps(1000)
 
-        for t in tqdm(self.scheduler.timesteps):
+        for t in self.progress_bar(self.scheduler.timesteps):
             # 1. predict noise model_output
             model_output = self.unet(image, t)["sample"]
 

src/diffusers/pipelines/latent_diffusion/pipeline_latent_diffusion.py

@@ -6,7 +6,6 @@ import torch
 import torch.nn as nn
 import torch.utils.checkpoint
 
-from tqdm.auto import tqdm
 from transformers.activations import ACT2FN
 from transformers.configuration_utils import PretrainedConfig
 from transformers.modeling_outputs import BaseModelOutput
@@ -83,7 +82,7 @@ class LDMTextToImagePipeline(DiffusionPipeline):
         if accepts_eta:
             extra_kwargs["eta"] = eta
 
-        for t in tqdm(self.scheduler.timesteps):
+        for t in self.progress_bar(self.scheduler.timesteps):
             if guidance_scale == 1.0:
                 # guidance_scale of 1 means no guidance
                 latents_input = latents

src/diffusers/pipelines/latent_diffusion_uncond/pipeline_latent_diffusion_uncond.py

@@ -3,8 +3,6 @@ import warnings
 
 import torch
 
-from tqdm.auto import tqdm
-
 from ...pipeline_utils import DiffusionPipeline
 
 
@@ -45,7 +43,7 @@ class LDMPipeline(DiffusionPipeline):
         if accepts_eta:
             extra_kwargs["eta"] = eta
 
-        for t in tqdm(self.scheduler.timesteps):
+        for t in self.progress_bar(self.scheduler.timesteps):
             # predict the noise residual
             noise_prediction = self.unet(latents, t)["sample"]
             # compute the previous noisy sample x_t -> x_t-1

src/diffusers/pipelines/pndm/pipeline_pndm.py

@@ -18,8 +18,6 @@ import warnings
 
 import torch
 
-from tqdm.auto import tqdm
-
 from ...pipeline_utils import DiffusionPipeline
 
 
@@ -54,7 +52,7 @@ class PNDMPipeline(DiffusionPipeline):
         image = image.to(self.device)
 
         self.scheduler.set_timesteps(num_inference_steps)
-        for t in tqdm(self.scheduler.timesteps):
+        for t in self.progress_bar(self.scheduler.timesteps):
             model_output = self.unet(image, t)["sample"]
 
             image = self.scheduler.step(model_output, t, image)["prev_sample"]

src/diffusers/pipelines/score_sde_ve/pipeline_score_sde_ve.py

@@ -4,7 +4,6 @@ import warnings
 import torch
 
 from diffusers import DiffusionPipeline
-from tqdm.auto import tqdm
 
 
 class ScoreSdeVePipeline(DiffusionPipeline):
@@ -37,7 +36,7 @@ class ScoreSdeVePipeline(DiffusionPipeline):
         self.scheduler.set_timesteps(num_inference_steps)
         self.scheduler.set_sigmas(num_inference_steps)
 
-        for i, t in tqdm(enumerate(self.scheduler.timesteps)):
+        for i, t in enumerate(self.progress_bar(self.scheduler.timesteps)):
             sigma_t = self.scheduler.sigmas[i] * torch.ones(shape[0], device=self.device)
 
             # correction step

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion.py

@@ -4,7 +4,6 @@ from typing import List, Optional, Union
 
 import torch
 
-from tqdm.auto import tqdm
 from transformers import CLIPFeatureExtractor, CLIPTextModel, CLIPTokenizer
 
 from ...models import AutoencoderKL, UNet2DConditionModel
@@ -133,7 +132,7 @@ class StableDiffusionPipeline(DiffusionPipeline):
         if accepts_eta:
             extra_step_kwargs["eta"] = eta
 
-        for i, t in tqdm(enumerate(self.scheduler.timesteps)):
+        for i, t in enumerate(self.progress_bar(self.scheduler.timesteps)):
             # expand the latents if we are doing classifier free guidance
             latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents
             if isinstance(self.scheduler, LMSDiscreteScheduler):

src/diffusers/pipelines/stochatic_karras_ve/pipeline_stochastic_karras_ve.py

@@ -3,8 +3,6 @@ import warnings
 
 import torch
 
-from tqdm.auto import tqdm
-
 from ...models import UNet2DModel
 from ...pipeline_utils import DiffusionPipeline
 from ...schedulers import KarrasVeScheduler
@@ -53,7 +51,7 @@ class KarrasVePipeline(DiffusionPipeline):
 
         self.scheduler.set_timesteps(num_inference_steps)
 
-        for t in tqdm(self.scheduler.timesteps):
+        for t in self.progress_bar(self.scheduler.timesteps):
             # here sigma_t == t_i from the paper
             sigma = self.scheduler.schedule[t]
             sigma_prev = self.scheduler.schedule[t - 1] if t > 0 else 0

tests/test_pipelines.py

@@ -44,6 +44,29 @@ from diffusers.testing_utils import slow, torch_device
 torch.backends.cuda.matmul.allow_tf32 = False
 
 
+def test_progress_bar(capsys):
+    model = UNet2DModel(
+        block_out_channels=(32, 64),
+        layers_per_block=2,
+        sample_size=32,
+        in_channels=3,
+        out_channels=3,
+        down_block_types=("DownBlock2D", "AttnDownBlock2D"),
+        up_block_types=("AttnUpBlock2D", "UpBlock2D"),
+    )
+    scheduler = DDPMScheduler(num_train_timesteps=10)
+
+    ddpm = DDPMPipeline(model, scheduler).to(torch_device)
+    ddpm(output_type="numpy")["sample"]
+    captured = capsys.readouterr()
+    assert "10/10" in captured.err, "Progress bar has to be displayed"
+
+    ddpm.set_progress_bar_config(disable=True)
+    ddpm(output_type="numpy")["sample"]
+    captured = capsys.readouterr()
+    assert captured.err == "", "Progress bar should be disabled"
+
+
 class PipelineTesterMixin(unittest.TestCase):
     def test_from_pretrained_save_pretrained(self):
         # 1. Load models