Use CC12M for LCM WDS training example (#5908)

* Fix SD scripts - there are only 2 items per batch

* Adjustments to make the SDXL scripts work with other datasets

* Use public webdataset dataset for examples

* make style

* Minor tweaks to the readmes.

* Stress that the database is illustrative.

examples/consistency_distillation/README.md

 # Latent Consistency Distillation Example:
 
-[Latent Consistency Models (LCMs)](https://arxiv.org/abs/2310.04378) is method to distill latent diffusion model to enable swift inference with minimal steps. This example demonstrates how to use the latent consistency distillation to distill stable-diffusion-v1.5 for less timestep inference.
+[Latent Consistency Models (LCMs)](https://arxiv.org/abs/2310.04378) is a method to distill a latent diffusion model to enable swift inference with minimal steps. This example demonstrates how to use latent consistency distillation to distill stable-diffusion-v1.5 for inference with few timesteps.
 
 ## Full model distillation
 
@@ -24,7 +24,7 @@ Then cd in the example folder and run
 pip install -r requirements.txt
 ```
 
-And initialize an [🤗Accelerate](https://github.com/huggingface/accelerate/) environment with:
+And initialize an [🤗 Accelerate](https://github.com/huggingface/accelerate/) environment with:
 
 ```bash
 accelerate config
@@ -46,12 +46,16 @@ write_basic_config()
 When running `accelerate config`, if we specify torch compile mode to True there can be dramatic speedups.
 
 
-#### Example with LAION-A6+ dataset
+#### Example
+
+The following uses the [Conceptual Captions 12M (CC12M) dataset](https://github.com/google-research-datasets/conceptual-12m) as an example, and for illustrative purposes only. For best results you may consider large and high-quality text-image datasets such as [LAION](https://laion.ai/blog/laion-400-open-dataset/). You may also need to search the hyperparameter space according to the dataset you use.
 
 ```bash
-runwayml/stable-diffusion-v1-5
-PROGRAM="train_lcm_distill_sd_wds.py \
-    --pretrained_teacher_model=$MODEL_DIR \
+export MODEL_NAME="runwayml/stable-diffusion-v1-5"
+export OUTPUT_DIR="path/to/saved/model"
+
+accelerate launch train_lcm_distill_sd_wds.py \
+    --pretrained_teacher_model=$MODEL_NAME \
     --output_dir=$OUTPUT_DIR \
     --mixed_precision=fp16 \
     --resolution=512 \
@@ -59,7 +63,7 @@ PROGRAM="train_lcm_distill_sd_wds.py \
     --max_train_steps=1000 \
     --max_train_samples=4000000 \
     --dataloader_num_workers=8 \
-    --train_shards_path_or_url='pipe:aws s3 cp s3://muse-datasets/laion-aesthetic6plus-min512-data/{00000..01210}.tar -' \
+    --train_shards_path_or_url="pipe:curl -L -s https://huggingface.co/datasets/laion/conceptual-captions-12m-webdataset/resolve/main/data/{00000..01099}.tar?download=true" \
     --validation_steps=200 \
     --checkpointing_steps=200 --checkpoints_total_limit=10 \
     --train_batch_size=12 \
@@ -69,19 +73,23 @@ PROGRAM="train_lcm_distill_sd_wds.py \
     --resume_from_checkpoint=latest \
     --report_to=wandb \
     --seed=453645634 \
-    --push_to_hub \
+    --push_to_hub
 ```
 
 ## LCM-LoRA
 
 Instead of fine-tuning the full model, we can also just train a LoRA that can be injected into any SDXL model.
 
-### Example with LAION-A6+ dataset
-    
+### Example
+
+The following uses the [Conceptual Captions 12M (CC12M) dataset](https://github.com/google-research-datasets/conceptual-12m) as an example. For best results you may consider large and high-quality text-image datasets such as [LAION](https://laion.ai/blog/laion-400-open-dataset/).
+
 ```bash
-runwayml/stable-diffusion-v1-5
-PROGRAM="train_lcm_distill_lora_sd_wds.py \
-    --pretrained_teacher_model=$MODEL_DIR \
+export MODEL_NAME="runwayml/stable-diffusion-v1-5"
+export OUTPUT_DIR="path/to/saved/model"
+
+accelerate launch train_lcm_distill_lora_sd_wds.py \
+    --pretrained_teacher_model=$MODEL_NAME \
     --output_dir=$OUTPUT_DIR \
     --mixed_precision=fp16 \
     --resolution=512 \
@@ -90,7 +98,7 @@ PROGRAM="train_lcm_distill_lora_sd_wds.py \
     --max_train_steps=1000 \
     --max_train_samples=4000000 \
     --dataloader_num_workers=8 \
-    --train_shards_path_or_url='pipe:aws s3 cp s3://muse-datasets/laion-aesthetic6plus-min512-data/{00000..01210}.tar -' \
+    --train_shards_path_or_url="pipe:curl -L -s https://huggingface.co/datasets/laion/conceptual-captions-12m-webdataset/resolve/main/data/{00000..01099}.tar?download=true" \
     --validation_steps=200 \
     --checkpointing_steps=200 --checkpoints_total_limit=10 \
     --train_batch_size=12 \

examples/consistency_distillation/README_sdxl.md

 # Latent Consistency Distillation Example:
 
-[Latent Consistency Models (LCMs)](https://arxiv.org/abs/2310.04378) is method to distill latent diffusion model to enable swift inference with minimal steps. This example demonstrates how to use the latent consistency distillation to distill SDXL for less timestep inference.
+[Latent Consistency Models (LCMs)](https://arxiv.org/abs/2310.04378) is a method to distill a latent diffusion model to enable swift inference with minimal steps. This example demonstrates how to use latent consistency distillation to distill SDXL for inference with few timesteps.
 
 ## Full model distillation
 
@@ -24,7 +24,7 @@ Then cd in the example folder and run
 pip install -r requirements.txt
 ```
 
-And initialize an [🤗Accelerate](https://github.com/huggingface/accelerate/) environment with:
+And initialize an [🤗 Accelerate](https://github.com/huggingface/accelerate/) environment with:
 
 ```bash
 accelerate config
@@ -46,12 +46,16 @@ write_basic_config()
 When running `accelerate config`, if we specify torch compile mode to True there can be dramatic speedups.
 
 
-#### Example with LAION-A6+ dataset
+#### Example
+
+The following uses the [Conceptual Captions 12M (CC12M) dataset](https://github.com/google-research-datasets/conceptual-12m) as an example, and for illustrative purposes only. For best results you may consider large and high-quality text-image datasets such as [LAION](https://laion.ai/blog/laion-400-open-dataset/). You may also need to search the hyperparameter space according to the dataset you use.
 
 ```bash
-export MODEL_DIR="stabilityai/stable-diffusion-xl-base-1.0"
-PROGRAM="train_lcm_distill_sdxl_wds.py \
-    --pretrained_teacher_model=$MODEL_DIR \
+export MODEL_NAME="stabilityai/stable-diffusion-xl-base-1.0"
+export OUTPUT_DIR="path/to/saved/model"
+
+accelerate launch train_lcm_distill_sdxl_wds.py \
+    --pretrained_teacher_model=$MODEL_NAME \
     --pretrained_vae_model_name_or_path=madebyollin/sdxl-vae-fp16-fix \
     --output_dir=$OUTPUT_DIR \
     --mixed_precision=fp16 \
@@ -60,7 +64,7 @@ PROGRAM="train_lcm_distill_sdxl_wds.py \
     --max_train_steps=1000 \
     --max_train_samples=4000000 \
     --dataloader_num_workers=8 \
-    --train_shards_path_or_url='pipe:aws s3 cp s3://muse-datasets/laion-aesthetic6plus-min512-data/{00000..01210}.tar -' \
+    --train_shards_path_or_url="pipe:curl -L -s https://huggingface.co/datasets/laion/conceptual-captions-12m-webdataset/resolve/main/data/{00000..01099}.tar?download=true" \
     --validation_steps=200 \
     --checkpointing_steps=200 --checkpoints_total_limit=10 \
     --train_batch_size=12 \
@@ -77,11 +81,15 @@ PROGRAM="train_lcm_distill_sdxl_wds.py \
 
 Instead of fine-tuning the full model, we can also just train a LoRA that can be injected into any SDXL model.
 
-### Example with LAION-A6+ dataset
-    
+### Example
+
+The following uses the [Conceptual Captions 12M (CC12M) dataset](https://github.com/google-research-datasets/conceptual-12m) as an example. For best results you may consider large and high-quality text-image datasets such as [LAION](https://laion.ai/blog/laion-400-open-dataset/).
+
 ```bash
-export MODEL_DIR="stabilityai/stable-diffusion-xl-base-1.0"
-PROGRAM="train_lcm_distill_lora_sdxl_wds.py \
+export MODEL_NAME="stabilityai/stable-diffusion-xl-base-1.0"
+export OUTPUT_DIR="path/to/saved/model"
+
+accelerate launch train_lcm_distill_lora_sdxl_wds.py \
     --pretrained_teacher_model=$MODEL_DIR \
     --pretrained_vae_model_name_or_path=madebyollin/sdxl-vae-fp16-fix \
     --output_dir=$OUTPUT_DIR \
@@ -92,7 +100,7 @@ PROGRAM="train_lcm_distill_lora_sdxl_wds.py \
     --max_train_steps=1000 \
     --max_train_samples=4000000 \
     --dataloader_num_workers=8 \
-    --train_shards_path_or_url='pipe:aws s3 cp s3://muse-datasets/laion-aesthetic6plus-min512-data/{00000..01210}.tar -' \
+    --train_shards_path_or_url="pipe:curl -L -s https://huggingface.co/datasets/laion/conceptual-captions-12m-webdataset/resolve/main/data/{00000..01099}.tar?download=true" \
     --validation_steps=200 \
     --checkpointing_steps=200 --checkpoints_total_limit=10 \
     --train_batch_size=12 \

examples/consistency_distillation/train_lcm_distill_lora_sd_wds.py

@@ -1123,7 +1123,7 @@ def main(args):
     for epoch in range(first_epoch, args.num_train_epochs):
         for step, batch in enumerate(train_dataloader):
             with accelerator.accumulate(unet):
-                image, text, _, _ = batch
+                image, text = batch
 
                 image = image.to(accelerator.device, non_blocking=True)
                 encoded_text = compute_embeddings_fn(text)

examples/consistency_distillation/train_lcm_distill_lora_sdxl_wds.py

@@ -68,6 +68,11 @@ from diffusers.utils.import_utils import is_xformers_available
 
 MAX_SEQ_LENGTH = 77
 
+# Adjust for your dataset
+WDS_JSON_WIDTH = "width"  # original_width for LAION
+WDS_JSON_HEIGHT = "height"  # original_height for LAION
+MIN_SIZE = 700  # ~960 for LAION, ideal: 1024 if the dataset contains large images
+
 if is_wandb_available():
     import wandb
 
@@ -146,10 +151,10 @@ class WebdatasetFilter:
         try:
             if "json" in x:
                 x_json = json.loads(x["json"])
-                filter_size = (x_json.get("original_width", 0.0) or 0.0) >= self.min_size and x_json.get(
-                    "original_height", 0
+                filter_size = (x_json.get(WDS_JSON_WIDTH, 0.0) or 0.0) >= self.min_size and x_json.get(
+                    WDS_JSON_HEIGHT, 0
                 ) >= self.min_size
-                filter_watermark = (x_json.get("pwatermark", 1.0) or 1.0) <= self.max_pwatermark
+                filter_watermark = (x_json.get("pwatermark", 0.0) or 0.0) <= self.max_pwatermark
                 return filter_size and filter_watermark
             else:
                 return False
@@ -180,7 +185,7 @@ class Text2ImageDataset:
             if use_fix_crop_and_size:
                 return (resolution, resolution)
             else:
-                return (int(json.get("original_width", 0.0)), int(json.get("original_height", 0.0)))
+                return (int(json.get(WDS_JSON_WIDTH, 0.0)), int(json.get(WDS_JSON_HEIGHT, 0.0)))
 
         def transform(example):
             # resize image
@@ -212,7 +217,7 @@ class Text2ImageDataset:
         pipeline = [
             wds.ResampledShards(train_shards_path_or_url),
             tarfile_to_samples_nothrow,
-            wds.select(WebdatasetFilter(min_size=960)),
+            wds.select(WebdatasetFilter(min_size=MIN_SIZE)),
             wds.shuffle(shuffle_buffer_size),
             *processing_pipeline,
             wds.batched(per_gpu_batch_size, partial=False, collation_fn=default_collate),

examples/consistency_distillation/train_lcm_distill_sd_wds.py

@@ -1106,7 +1106,7 @@ def main(args):
     for epoch in range(first_epoch, args.num_train_epochs):
         for step, batch in enumerate(train_dataloader):
             with accelerator.accumulate(unet):
-                image, text, _, _ = batch
+                image, text = batch
 
                 image = image.to(accelerator.device, non_blocking=True)
                 encoded_text = compute_embeddings_fn(text)

examples/consistency_distillation/train_lcm_distill_sdxl_wds.py

@@ -67,6 +67,11 @@ from diffusers.utils.import_utils import is_xformers_available
 
 MAX_SEQ_LENGTH = 77
 
+# Adjust for your dataset
+WDS_JSON_WIDTH = "width"  # original_width for LAION
+WDS_JSON_HEIGHT = "height"  # original_height for LAION
+MIN_SIZE = 700  # ~960 for LAION, ideal: 1024 if the dataset contains large images
+
 if is_wandb_available():
     import wandb
 
@@ -128,10 +133,10 @@ class WebdatasetFilter:
         try:
             if "json" in x:
                 x_json = json.loads(x["json"])
-                filter_size = (x_json.get("original_width", 0.0) or 0.0) >= self.min_size and x_json.get(
-                    "original_height", 0
+                filter_size = (x_json.get(WDS_JSON_WIDTH, 0.0) or 0.0) >= self.min_size and x_json.get(
+                    WDS_JSON_HEIGHT, 0
                 ) >= self.min_size
-                filter_watermark = (x_json.get("pwatermark", 1.0) or 1.0) <= self.max_pwatermark
+                filter_watermark = (x_json.get("pwatermark", 0.0) or 0.0) <= self.max_pwatermark
                 return filter_size and filter_watermark
             else:
                 return False
@@ -162,7 +167,7 @@ class Text2ImageDataset:
             if use_fix_crop_and_size:
                 return (resolution, resolution)
             else:
-                return (int(json.get("original_width", 0.0)), int(json.get("original_height", 0.0)))
+                return (int(json.get(WDS_JSON_WIDTH, 0.0)), int(json.get(WDS_JSON_HEIGHT, 0.0)))
 
         def transform(example):
             # resize image
@@ -194,7 +199,7 @@ class Text2ImageDataset:
         pipeline = [
             wds.ResampledShards(train_shards_path_or_url),
             tarfile_to_samples_nothrow,
-            wds.select(WebdatasetFilter(min_size=960)),
+            wds.select(WebdatasetFilter(min_size=MIN_SIZE)),
             wds.shuffle(shuffle_buffer_size),
             *processing_pipeline,
             wds.batched(per_gpu_batch_size, partial=False, collation_fn=default_collate),