AI/diffusers
1
0
Fork 0
mirror of https://github.com/huggingface/diffusers.git synced 2026-01-27 17:22:53 +03:00
Code Activity

update code to reflect latest changes as of May 30th (#3616)

Browse Source 
* update code to reflect latest changes as of May 30th

* update text to image example

* reflect changes to textual inversion

* make style

* fix typo

* Revert unnecessary readme changes

---------

Co-authored-by: root <root@orttrainingdev8.d32nl1ml4oruzj4qz3bqlggovf.px.internal.cloudapp.net>
Co-authored-by: Prathik Rao <prathikrao@microsoft.com@orttrainingdev8.d32nl1ml4oruzj4qz3bqlggovf.px.internal.cloudapp.net>
This commit is contained in:
Prathik Rao
2023-05-31 02:29:04 -07:00
committed by GitHub
parent 7d0ac4eeab
commit abb89da4de
6 changed files with 566 additions and 123 deletions
Download Patch File Download Diff File Expand all files Collapse all files

284
examples/research_projects/onnxruntime/text_to_image/train_text_to_image.py
View File

@@ -20,6 +20,7 @@ import os
import random
from pathlib import Path
import accelerate
import datasets
import numpy as np
import torch
@@ -28,30 +29,96 @@ import torch.utils.checkpoint
import transformers
from accelerate import Accelerator
from accelerate.logging import get_logger
from accelerate.state import AcceleratorState
from accelerate.utils import ProjectConfiguration, set_seed
from datasets import load_dataset
from huggingface_hub import create_repo, upload_folder
from onnxruntime.training.optim.fp16_optimizer import FP16_Optimizer as ORT_FP16_Optimizer
from onnxruntime.training.ortmodule import ORTModule
from packaging import version
from torchvision import transforms
from tqdm.auto import tqdm
from transformers import CLIPTextModel, CLIPTokenizer
from transformers.utils import ContextManagers
import diffusers
from diffusers import AutoencoderKL, DDPMScheduler, StableDiffusionPipeline, UNet2DConditionModel
from diffusers.optimization import get_scheduler
from diffusers.training_utils import EMAModel
from diffusers.utils import check_min_version
from diffusers.utils import check_min_version, deprecate, is_wandb_available
from diffusers.utils.import_utils import is_xformers_available
if is_wandb_available():
import wandb
# Will error if the minimal version of diffusers is not installed. Remove at your own risks.
check_min_version("0.13.0.dev0")
check_min_version("0.17.0.dev0")
logger = get_logger(__name__, log_level="INFO")
DATASET_NAME_MAPPING = {
"lambdalabs/pokemon-blip-captions": ("image", "text"),
}
def log_validation(vae, text_encoder, tokenizer, unet, args, accelerator, weight_dtype, epoch):
logger.info("Running validation... ")
pipeline = StableDiffusionPipeline.from_pretrained(
args.pretrained_model_name_or_path,
vae=accelerator.unwrap_model(vae),
text_encoder=accelerator.unwrap_model(text_encoder),
tokenizer=tokenizer,
unet=accelerator.unwrap_model(unet),
safety_checker=None,
revision=args.revision,
torch_dtype=weight_dtype,
)
pipeline = pipeline.to(accelerator.device)
pipeline.set_progress_bar_config(disable=True)
if args.enable_xformers_memory_efficient_attention:
pipeline.enable_xformers_memory_efficient_attention()
if args.seed is None:
generator = None
else:
generator = torch.Generator(device=accelerator.device).manual_seed(args.seed)
images = []
for i in range(len(args.validation_prompts)):
with torch.autocast("cuda"):
image = pipeline(args.validation_prompts[i], num_inference_steps=20, generator=generator).images[0]
images.append(image)
for tracker in accelerator.trackers:
if tracker.name == "tensorboard":
np_images = np.stack([np.asarray(img) for img in images])
tracker.writer.add_images("validation", np_images, epoch, dataformats="NHWC")
elif tracker.name == "wandb":
tracker.log(
{
"validation": [
wandb.Image(image, caption=f"{i}: {args.validation_prompts[i]}")
for i, image in enumerate(images)
]
}
)
else:
logger.warn(f"image logging not implemented for {tracker.name}")
del pipeline
torch.cuda.empty_cache()
def parse_args():
parser = argparse.ArgumentParser(description="Simple example of a training script.")
parser.add_argument(
"--input_pertubation", type=float, default=0, help="The scale of input pretubation. Recommended 0.1."
)
parser.add_argument(
"--pretrained_model_name_or_path",
type=str,
@@ -110,6 +177,13 @@ def parse_args():
"value if set."
),
)
parser.add_argument(
"--validation_prompts",
type=str,
default=None,
nargs="+",
help=("A set of prompts evaluated every `--validation_epochs` and logged to `--report_to`."),
)
parser.add_argument(
"--output_dir",
type=str,
@@ -191,6 +265,13 @@ def parse_args():
parser.add_argument(
"--lr_warmup_steps", type=int, default=500, help="Number of steps for the warmup in the lr scheduler."
)
parser.add_argument(
"--snr_gamma",
type=float,
default=None,
help="SNR weighting gamma to be used if rebalancing the loss. Recommended value is 5.0. "
"More details here: https://arxiv.org/abs/2303.09556.",
)
parser.add_argument(
"--use_8bit_adam", action="store_true", help="Whether or not to use 8-bit Adam from bitsandbytes."
)
@@ -295,6 +376,22 @@ def parse_args():
parser.add_argument(
"--enable_xformers_memory_efficient_attention", action="store_true", help="Whether or not to use xformers."
)
parser.add_argument("--noise_offset", type=float, default=0, help="The scale of noise offset.")
parser.add_argument(
"--validation_epochs",
type=int,
default=5,
help="Run validation every X epochs.",
)
parser.add_argument(
"--tracker_project_name",
type=str,
default="text2image-fine-tune",
help=(
"The `project_name` argument passed to Accelerator.init_trackers for"
" more information see https://huggingface.co/docs/accelerate/v0.17.0/en/package_reference/accelerator#accelerate.Accelerator"
),
)
args = parser.parse_args()
env_local_rank = int(os.environ.get("LOCAL_RANK", -1))
@@ -312,13 +409,18 @@ def parse_args():
return args
dataset_name_mapping = {
"lambdalabs/pokemon-blip-captions": ("image", "text"),
}
def main():
args = parse_args()
if args.non_ema_revision is not None:
deprecate(
"non_ema_revision!=None",
"0.15.0",
message=(
"Downloading 'non_ema' weights from revision branches of the Hub is deprecated. Please make sure to"
" use `--variant=non_ema` instead."
),
)
logging_dir = os.path.join(args.output_dir, args.logging_dir)
accelerator_project_config = ProjectConfiguration(total_limit=args.checkpoints_total_limit)
@@ -366,10 +468,34 @@ def main():
tokenizer = CLIPTokenizer.from_pretrained(
args.pretrained_model_name_or_path, subfolder="tokenizer", revision=args.revision
)
text_encoder = CLIPTextModel.from_pretrained(
args.pretrained_model_name_or_path, subfolder="text_encoder", revision=args.revision
)
vae = AutoencoderKL.from_pretrained(args.pretrained_model_name_or_path, subfolder="vae", revision=args.revision)
def deepspeed_zero_init_disabled_context_manager():
"""
returns either a context list that includes one that will disable zero.Init or an empty context list
"""
deepspeed_plugin = AcceleratorState().deepspeed_plugin if accelerate.state.is_initialized() else None
if deepspeed_plugin is None:
return []
return [deepspeed_plugin.zero3_init_context_manager(enable=False)]
# Currently Accelerate doesn't know how to handle multiple models under Deepspeed ZeRO stage 3.
# For this to work properly all models must be run through `accelerate.prepare`. But accelerate
# will try to assign the same optimizer with the same weights to all models during
# `deepspeed.initialize`, which of course doesn't work.
#
# For now the following workaround will partially support Deepspeed ZeRO-3, by excluding the 2
# frozen models from being partitioned during `zero.Init` which gets called during
# `from_pretrained` So CLIPTextModel and AutoencoderKL will not enjoy the parameter sharding
# across multiple gpus and only UNet2DConditionModel will get ZeRO sharded.
with ContextManagers(deepspeed_zero_init_disabled_context_manager()):
text_encoder = CLIPTextModel.from_pretrained(
args.pretrained_model_name_or_path, subfolder="text_encoder", revision=args.revision
)
vae = AutoencoderKL.from_pretrained(
args.pretrained_model_name_or_path, subfolder="vae", revision=args.revision
)
unet = UNet2DConditionModel.from_pretrained(
args.pretrained_model_name_or_path, subfolder="unet", revision=args.non_ema_revision
)
@@ -383,17 +509,81 @@ def main():
ema_unet = UNet2DConditionModel.from_pretrained(
args.pretrained_model_name_or_path, subfolder="unet", revision=args.revision
)
ema_unet = EMAModel(ema_unet.parameters())
ema_unet = EMAModel(ema_unet.parameters(), model_cls=UNet2DConditionModel, model_config=ema_unet.config)
if args.enable_xformers_memory_efficient_attention:
if is_xformers_available():
import xformers
xformers_version = version.parse(xformers.__version__)
if xformers_version == version.parse("0.0.16"):
logger.warn(
"xFormers 0.0.16 cannot be used for training in some GPUs. If you observe problems during training, please update xFormers to at least 0.0.17. See https://huggingface.co/docs/diffusers/main/en/optimization/xformers for more details."
)
unet.enable_xformers_memory_efficient_attention()
else:
raise ValueError("xformers is not available. Make sure it is installed correctly")
def compute_snr(timesteps):
"""
Computes SNR as per https://github.com/TiankaiHang/Min-SNR-Diffusion-Training/blob/521b624bd70c67cee4bdf49225915f5945a872e3/guided_diffusion/gaussian_diffusion.py#L847-L849
"""
alphas_cumprod = noise_scheduler.alphas_cumprod
sqrt_alphas_cumprod = alphas_cumprod**0.5
sqrt_one_minus_alphas_cumprod = (1.0 - alphas_cumprod) ** 0.5
# Expand the tensors.
# Adapted from https://github.com/TiankaiHang/Min-SNR-Diffusion-Training/blob/521b624bd70c67cee4bdf49225915f5945a872e3/guided_diffusion/gaussian_diffusion.py#L1026
sqrt_alphas_cumprod = sqrt_alphas_cumprod.to(device=timesteps.device)[timesteps].float()
while len(sqrt_alphas_cumprod.shape) < len(timesteps.shape):
sqrt_alphas_cumprod = sqrt_alphas_cumprod[..., None]
alpha = sqrt_alphas_cumprod.expand(timesteps.shape)
sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod.to(device=timesteps.device)[timesteps].float()
while len(sqrt_one_minus_alphas_cumprod.shape) < len(timesteps.shape):
sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod[..., None]
sigma = sqrt_one_minus_alphas_cumprod.expand(timesteps.shape)
# Compute SNR.
snr = (alpha / sigma) ** 2
return snr
# `accelerate` 0.16.0 will have better support for customized saving
if version.parse(accelerate.__version__) >= version.parse("0.16.0"):
# create custom saving & loading hooks so that `accelerator.save_state(...)` serializes in a nice format
def save_model_hook(models, weights, output_dir):
if args.use_ema:
ema_unet.save_pretrained(os.path.join(output_dir, "unet_ema"))
for i, model in enumerate(models):
model.save_pretrained(os.path.join(output_dir, "unet"))
# make sure to pop weight so that corresponding model is not saved again
weights.pop()
def load_model_hook(models, input_dir):
if args.use_ema:
load_model = EMAModel.from_pretrained(os.path.join(input_dir, "unet_ema"), UNet2DConditionModel)
ema_unet.load_state_dict(load_model.state_dict())
ema_unet.to(accelerator.device)
del load_model
for i in range(len(models)):
# pop models so that they are not loaded again
model = models.pop()
# load diffusers style into model
load_model = UNet2DConditionModel.from_pretrained(input_dir, subfolder="unet")
model.register_to_config(**load_model.config)
model.load_state_dict(load_model.state_dict())
del load_model
accelerator.register_save_state_pre_hook(save_model_hook)
accelerator.register_load_state_pre_hook(load_model_hook)
if args.gradient_checkpointing:
unet.enable_gradient_checkpointing()
vae.enable_gradient_checkpointing()
# Enable TF32 for faster training on Ampere GPUs,
# cf https://pytorch.org/docs/stable/notes/cuda.html#tensorfloat-32-tf32-on-ampere-devices
@@ -426,6 +616,8 @@ def main():
eps=args.adam_epsilon,
)
optimizer = ORT_FP16_Optimizer(optimizer)
# Get the datasets: you can either provide your own training and evaluation files (see below)
# or specify a Dataset from the hub (the dataset will be downloaded automatically from the datasets Hub).
@@ -455,7 +647,7 @@ def main():
column_names = dataset["train"].column_names
# 6. Get the column names for input/target.
dataset_columns = dataset_name_mapping.get(args.dataset_name, None)
dataset_columns = DATASET_NAME_MAPPING.get(args.dataset_name, None)
if args.image_column is None:
image_column = dataset_columns[0] if dataset_columns is not None else column_names[0]
else:
@@ -549,10 +741,10 @@ def main():
unet, optimizer, train_dataloader, lr_scheduler
)
unet = ORTModule(unet)
if args.use_ema:
accelerator.register_for_checkpointing(ema_unet)
ema_unet.to(accelerator.device)
unet = ORTModule(unet)
# For mixed precision training we cast the text_encoder and vae weights to half-precision
# as these models are only used for inference, keeping weights in full precision is not required.
@@ -565,8 +757,6 @@ def main():
# Move text_encode and vae to gpu and cast to weight_dtype
text_encoder.to(accelerator.device, dtype=weight_dtype)
vae.to(accelerator.device, dtype=weight_dtype)
if args.use_ema:
ema_unet.to(accelerator.device)
# We need to recalculate our total training steps as the size of the training dataloader may have changed.
num_update_steps_per_epoch = math.ceil(len(train_dataloader) / args.gradient_accumulation_steps)
@@ -578,7 +768,9 @@ def main():
# We need to initialize the trackers we use, and also store our configuration.
# The trackers initializes automatically on the main process.
if accelerator.is_main_process:
accelerator.init_trackers("text2image-fine-tune", config=vars(args))
tracker_config = dict(vars(args))
tracker_config.pop("validation_prompts")
accelerator.init_trackers(args.tracker_project_name, tracker_config)
# Train!
total_batch_size = args.train_batch_size * accelerator.num_processes * args.gradient_accumulation_steps
@@ -639,6 +831,13 @@ def main():
# Sample noise that we'll add to the latents
noise = torch.randn_like(latents)
if args.noise_offset:
# https://www.crosslabs.org//blog/diffusion-with-offset-noise
noise += args.noise_offset * torch.randn(
(latents.shape[0], latents.shape[1], 1, 1), device=latents.device
)
if args.input_pertubation:
new_noise = noise + args.input_pertubation * torch.randn_like(noise)
bsz = latents.shape[0]
# Sample a random timestep for each image
timesteps = torch.randint(0, noise_scheduler.config.num_train_timesteps, (bsz,), device=latents.device)
@@ -646,7 +845,10 @@ def main():
# Add noise to the latents according to the noise magnitude at each timestep
# (this is the forward diffusion process)
noisy_latents = noise_scheduler.add_noise(latents, noise, timesteps)
if args.input_pertubation:
noisy_latents = noise_scheduler.add_noise(latents, new_noise, timesteps)
else:
noisy_latents = noise_scheduler.add_noise(latents, noise, timesteps)
# Get the text embedding for conditioning
encoder_hidden_states = text_encoder(batch["input_ids"])[0]
@@ -660,8 +862,24 @@ def main():
raise ValueError(f"Unknown prediction type {noise_scheduler.config.prediction_type}")
# Predict the noise residual and compute loss
model_pred = unet(noisy_latents, timesteps, encoder_hidden_states, return_dict=False)[0]
loss = F.mse_loss(model_pred.float(), target.float(), reduction="mean")
model_pred = unet(noisy_latents, timesteps, encoder_hidden_states).sample
if args.snr_gamma is None:
loss = F.mse_loss(model_pred.float(), target.float(), reduction="mean")
else:
# Compute loss-weights as per Section 3.4 of https://arxiv.org/abs/2303.09556.
# Since we predict the noise instead of x_0, the original formulation is slightly changed.
# This is discussed in Section 4.2 of the same paper.
snr = compute_snr(timesteps)
mse_loss_weights = (
torch.stack([snr, args.snr_gamma * torch.ones_like(timesteps)], dim=1).min(dim=1)[0] / snr
)
# We first calculate the original loss. Then we mean over the non-batch dimensions and
# rebalance the sample-wise losses with their respective loss weights.
# Finally, we take the mean of the rebalanced loss.
loss = F.mse_loss(model_pred.float(), target.float(), reduction="none")
loss = loss.mean(dim=list(range(1, len(loss.shape)))) * mse_loss_weights
loss = loss.mean()
# Gather the losses across all processes for logging (if we use distributed training).
avg_loss = accelerator.gather(loss.repeat(args.train_batch_size)).mean()
@@ -696,6 +914,26 @@ def main():
if global_step >= args.max_train_steps:
break
if accelerator.is_main_process:
if args.validation_prompts is not None and epoch % args.validation_epochs == 0:
if args.use_ema:
# Store the UNet parameters temporarily and load the EMA parameters to perform inference.
ema_unet.store(unet.parameters())
ema_unet.copy_to(unet.parameters())
log_validation(
vae,
text_encoder,
tokenizer,
unet,
args,
accelerator,
weight_dtype,
global_step,
)
if args.use_ema:
# Switch back to the original UNet parameters.
ema_unet.restore(unet.parameters())
# Create the pipeline using the trained modules and save it.
accelerator.wait_for_everyone()
if accelerator.is_main_process:

14
examples/research_projects/onnxruntime/textual_inversion/README.md
View File

@@ -53,7 +53,19 @@ If you have already cloned the repo, then you won't need to go through these ste
<br>
Now let's get our dataset.Download 3-4 images from [here](https://drive.google.com/drive/folders/1fmJMs25nxS_rSNqS5hTcRdLem_YQXbq5) and save them in a directory. This will be our training data.
Now let's get our dataset. For this example we will use some cat images: https://huggingface.co/datasets/diffusers/cat_toy_example .
Let's first download it locally:
```py
from huggingface_hub import snapshot_download
local_dir = "./cat"
snapshot_download("diffusers/cat_toy_example", local_dir=local_dir, repo_type="dataset", ignore_patterns=".gitattributes")
```
This will be our training data.
Now we can launch the training using
## Use ONNXRuntime to accelerate training
In order to leverage onnxruntime to accelerate training, please use textual_inversion.py

230
examples/research_projects/onnxruntime/textual_inversion/textual_inversion.py
View File

@@ -18,9 +18,9 @@ import logging
import math
import os
import random
import warnings
from pathlib import Path
import datasets
import numpy as np
import PIL
import torch
@@ -31,6 +31,7 @@ from accelerate import Accelerator
from accelerate.logging import get_logger
from accelerate.utils import ProjectConfiguration, set_seed
from huggingface_hub import create_repo, upload_folder
from onnxruntime.training.optim.fp16_optimizer import FP16_Optimizer as ORT_FP16_Optimizer
from onnxruntime.training.ortmodule import ORTModule
# TODO: remove and import from diffusers.utils when the new version of diffusers is released
@@ -55,6 +56,9 @@ from diffusers.utils import check_min_version, is_wandb_available
from diffusers.utils.import_utils import is_xformers_available
if is_wandb_available():
import wandb
if version.parse(version.parse(PIL.__version__).base_version) >= version.parse("9.1.0"):
PIL_INTERPOLATION = {
"linear": PIL.Image.Resampling.BILINEAR,
@@ -75,14 +79,92 @@ else:
# Will error if the minimal version of diffusers is not installed. Remove at your own risks.
check_min_version("0.13.0.dev0")
check_min_version("0.17.0.dev0")
logger = get_logger(__name__)
def save_progress(text_encoder, placeholder_token_id, accelerator, args, save_path):
def save_model_card(repo_id: str, images=None, base_model=str, repo_folder=None):
img_str = ""
for i, image in enumerate(images):
image.save(os.path.join(repo_folder, f"image_{i}.png"))
img_str += f"![img_{i}](./image_{i}.png)\n"
yaml = f"""
---
license: creativeml-openrail-m
base_model: {base_model}
tags:
- stable-diffusion
- stable-diffusion-diffusers
- text-to-image
- diffusers
- textual_inversion
inference: true
---
"""
model_card = f"""
# Textual inversion text2image fine-tuning - {repo_id}
These are textual inversion adaption weights for {base_model}. You can find some example images in the following. \n
{img_str}
"""
with open(os.path.join(repo_folder, "README.md"), "w") as f:
f.write(yaml + model_card)
def log_validation(text_encoder, tokenizer, unet, vae, args, accelerator, weight_dtype, epoch):
logger.info(
f"Running validation... \n Generating {args.num_validation_images} images with prompt:"
f" {args.validation_prompt}."
)
# create pipeline (note: unet and vae are loaded again in float32)
pipeline = DiffusionPipeline.from_pretrained(
args.pretrained_model_name_or_path,
text_encoder=accelerator.unwrap_model(text_encoder),
tokenizer=tokenizer,
unet=unet,
vae=vae,
safety_checker=None,
revision=args.revision,
torch_dtype=weight_dtype,
)
pipeline.scheduler = DPMSolverMultistepScheduler.from_config(pipeline.scheduler.config)
pipeline = pipeline.to(accelerator.device)
pipeline.set_progress_bar_config(disable=True)
# run inference
generator = None if args.seed is None else torch.Generator(device=accelerator.device).manual_seed(args.seed)
images = []
for _ in range(args.num_validation_images):
with torch.autocast("cuda"):
image = pipeline(args.validation_prompt, num_inference_steps=25, generator=generator).images[0]
images.append(image)
for tracker in accelerator.trackers:
if tracker.name == "tensorboard":
np_images = np.stack([np.asarray(img) for img in images])
tracker.writer.add_images("validation", np_images, epoch, dataformats="NHWC")
if tracker.name == "wandb":
tracker.log(
{
"validation": [
wandb.Image(image, caption=f"{i}: {args.validation_prompt}") for i, image in enumerate(images)
]
}
)
del pipeline
torch.cuda.empty_cache()
return images
def save_progress(text_encoder, placeholder_token_ids, accelerator, args, save_path):
logger.info("Saving embeddings")
learned_embeds = accelerator.unwrap_model(text_encoder).get_input_embeddings().weight[placeholder_token_id]
learned_embeds = (
accelerator.unwrap_model(text_encoder)
.get_input_embeddings()
.weight[min(placeholder_token_ids) : max(placeholder_token_ids) + 1]
)
learned_embeds_dict = {args.placeholder_token: learned_embeds.detach().cpu()}
torch.save(learned_embeds_dict, save_path)
@@ -96,10 +178,15 @@ def parse_args():
help="Save learned_embeds.bin every X updates steps.",
)
parser.add_argument(
"--only_save_embeds",
"--save_as_full_pipeline",
action="store_true",
default=False,
help="Save only the embeddings for the new concept.",
help="Save the complete stable diffusion pipeline.",
)
parser.add_argument(
"--num_vectors",
type=int,
default=1,
help="How many textual inversion vectors shall be used to learn the concept.",
)
parser.add_argument(
"--pretrained_model_name_or_path",
@@ -269,12 +356,22 @@ def parse_args():
default=4,
help="Number of images that should be generated during validation with `validation_prompt`.",
)
parser.add_argument(
"--validation_steps",
type=int,
default=100,
help=(
"Run validation every X steps. Validation consists of running the prompt"
" `args.validation_prompt` multiple times: `args.num_validation_images`"
" and logging the images."
),
)
parser.add_argument(
"--validation_epochs",
type=int,
default=50,
default=None,
help=(
"Run validation every X epochs. Validation consists of running the prompt"
"Deprecated in favor of validation_steps. Run validation every X epochs. Validation consists of running the prompt"
" `args.validation_prompt` multiple times: `args.num_validation_images`"
" and logging the images."
),
@@ -479,7 +576,6 @@ def main():
if args.report_to == "wandb":
if not is_wandb_available():
raise ImportError("Make sure to install wandb if you want to use it for logging during training.")
import wandb
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
@@ -489,11 +585,9 @@ def main():
)
logger.info(accelerator.state, main_process_only=False)
if accelerator.is_local_main_process:
datasets.utils.logging.set_verbosity_warning()
transformers.utils.logging.set_verbosity_warning()
diffusers.utils.logging.set_verbosity_info()
else:
datasets.utils.logging.set_verbosity_error()
transformers.utils.logging.set_verbosity_error()
diffusers.utils.logging.set_verbosity_error()
@@ -528,8 +622,19 @@ def main():
)
# Add the placeholder token in tokenizer
num_added_tokens = tokenizer.add_tokens(args.placeholder_token)
if num_added_tokens == 0:
placeholder_tokens = [args.placeholder_token]
if args.num_vectors < 1:
raise ValueError(f"--num_vectors has to be larger or equal to 1, but is {args.num_vectors}")
# add dummy tokens for multi-vector
additional_tokens = []
for i in range(1, args.num_vectors):
additional_tokens.append(f"{args.placeholder_token}_{i}")
placeholder_tokens += additional_tokens
num_added_tokens = tokenizer.add_tokens(placeholder_tokens)
if num_added_tokens != args.num_vectors:
raise ValueError(
f"The tokenizer already contains the token {args.placeholder_token}. Please pass a different"
" `placeholder_token` that is not already in the tokenizer."
@@ -542,14 +647,16 @@ def main():
raise ValueError("The initializer token must be a single token.")
initializer_token_id = token_ids[0]
placeholder_token_id = tokenizer.convert_tokens_to_ids(args.placeholder_token)
placeholder_token_ids = tokenizer.convert_tokens_to_ids(placeholder_tokens)
# Resize the token embeddings as we are adding new special tokens to the tokenizer
text_encoder.resize_token_embeddings(len(tokenizer))
# Initialise the newly added placeholder token with the embeddings of the initializer token
token_embeds = text_encoder.get_input_embeddings().weight.data
token_embeds[placeholder_token_id] = token_embeds[initializer_token_id]
with torch.no_grad():
for token_id in placeholder_token_ids:
token_embeds[token_id] = token_embeds[initializer_token_id].clone()
# Freeze vae and unet
vae.requires_grad_(False)
@@ -568,6 +675,13 @@ def main():
if args.enable_xformers_memory_efficient_attention:
if is_xformers_available():
import xformers
xformers_version = version.parse(xformers.__version__)
if xformers_version == version.parse("0.0.16"):
logger.warn(
"xFormers 0.0.16 cannot be used for training in some GPUs. If you observe problems during training, please update xFormers to at least 0.0.17. See https://huggingface.co/docs/diffusers/main/en/optimization/xformers for more details."
)
unet.enable_xformers_memory_efficient_attention()
else:
raise ValueError("xformers is not available. Make sure it is installed correctly")
@@ -591,6 +705,8 @@ def main():
eps=args.adam_epsilon,
)
optimizer = ORT_FP16_Optimizer(optimizer)
# Dataset and DataLoaders creation:
train_dataset = TextualInversionDataset(
data_root=args.train_data_dir,
@@ -605,6 +721,15 @@ def main():
train_dataloader = torch.utils.data.DataLoader(
train_dataset, batch_size=args.train_batch_size, shuffle=True, num_workers=args.dataloader_num_workers
)
if args.validation_epochs is not None:
warnings.warn(
f"FutureWarning: You are doing logging with validation_epochs={args.validation_epochs}."
" Deprecated validation_epochs in favor of `validation_steps`"
f"Setting `args.validation_steps` to {args.validation_epochs * len(train_dataset)}",
FutureWarning,
stacklevel=2,
)
args.validation_steps = args.validation_epochs * len(train_dataset)
# Scheduler and math around the number of training steps.
overrode_max_train_steps = False
@@ -626,6 +751,8 @@ def main():
)
text_encoder = ORTModule(text_encoder)
unet = ORTModule(unet)
vae = ORTModule(vae)
# For mixed precision training we cast the unet and vae weights to half-precision
# as these models are only used for inference, keeping weights in full precision is not required.
@@ -663,7 +790,6 @@ def main():
logger.info(f" Total optimization steps = {args.max_train_steps}")
global_step = 0
first_epoch = 0
# Potentially load in the weights and states from a previous save
if args.resume_from_checkpoint:
if args.resume_from_checkpoint != "latest":
@@ -744,7 +870,9 @@ def main():
optimizer.zero_grad()
# Let's make sure we don't update any embedding weights besides the newly added token
index_no_updates = torch.arange(len(tokenizer)) != placeholder_token_id
index_no_updates = torch.ones((len(tokenizer),), dtype=torch.bool)
index_no_updates[min(placeholder_token_ids) : max(placeholder_token_ids) + 1] = False
with torch.no_grad():
accelerator.unwrap_model(text_encoder).get_input_embeddings().weight[
index_no_updates
@@ -752,72 +880,38 @@ def main():
# Checks if the accelerator has performed an optimization step behind the scenes
if accelerator.sync_gradients:
images = []
progress_bar.update(1)
global_step += 1
if global_step % args.save_steps == 0:
save_path = os.path.join(args.output_dir, f"learned_embeds-steps-{global_step}.bin")
save_progress(text_encoder, placeholder_token_id, accelerator, args, save_path)
save_progress(text_encoder, placeholder_token_ids, accelerator, args, save_path)
if global_step % args.checkpointing_steps == 0:
if accelerator.is_main_process:
if accelerator.is_main_process:
if global_step % args.checkpointing_steps == 0:
save_path = os.path.join(args.output_dir, f"checkpoint-{global_step}")
accelerator.save_state(save_path)
logger.info(f"Saved state to {save_path}")
if args.validation_prompt is not None and global_step % args.validation_steps == 0:
images = log_validation(
text_encoder, tokenizer, unet, vae, args, accelerator, weight_dtype, epoch
)
logs = {"loss": loss.detach().item(), "lr": lr_scheduler.get_last_lr()[0]}
progress_bar.set_postfix(**logs)
accelerator.log(logs, step=global_step)
if global_step >= args.max_train_steps:
break
if accelerator.is_main_process and args.validation_prompt is not None and epoch % args.validation_epochs == 0:
logger.info(
f"Running validation... \n Generating {args.num_validation_images} images with prompt:"
f" {args.validation_prompt}."
)
# create pipeline (note: unet and vae are loaded again in float32)
pipeline = DiffusionPipeline.from_pretrained(
args.pretrained_model_name_or_path,
text_encoder=accelerator.unwrap_model(text_encoder),
revision=args.revision,
)
pipeline.scheduler = DPMSolverMultistepScheduler.from_config(pipeline.scheduler.config)
pipeline = pipeline.to(accelerator.device)
pipeline.set_progress_bar_config(disable=True)
# run inference
generator = (
None if args.seed is None else torch.Generator(device=accelerator.device).manual_seed(args.seed)
)
prompt = args.num_validation_images * [args.validation_prompt]
images = pipeline(prompt, num_inference_steps=25, generator=generator).images
for tracker in accelerator.trackers:
if tracker.name == "tensorboard":
np_images = np.stack([np.asarray(img) for img in images])
tracker.writer.add_images("validation", np_images, epoch, dataformats="NHWC")
if tracker.name == "wandb":
tracker.log(
{
"validation": [
wandb.Image(image, caption=f"{i}: {args.validation_prompt}")
for i, image in enumerate(images)
]
}
)
del pipeline
torch.cuda.empty_cache()
# Create the pipeline using using the trained modules and save it.
# Create the pipeline using the trained modules and save it.
accelerator.wait_for_everyone()
if accelerator.is_main_process:
if args.push_to_hub and args.only_save_embeds:
if args.push_to_hub and not args.save_as_full_pipeline:
logger.warn("Enabling full model saving because --push_to_hub=True was specified.")
save_full_model = True
else:
save_full_model = not args.only_save_embeds
save_full_model = args.save_as_full_pipeline
if save_full_model:
pipeline = StableDiffusionPipeline.from_pretrained(
args.pretrained_model_name_or_path,
@@ -829,9 +923,15 @@ def main():
pipeline.save_pretrained(args.output_dir)
# Save the newly trained embeddings
save_path = os.path.join(args.output_dir, "learned_embeds.bin")
save_progress(text_encoder, placeholder_token_id, accelerator, args, save_path)
save_progress(text_encoder, placeholder_token_ids, accelerator, args, save_path)
if args.push_to_hub:
save_model_card(
repo_id,
images=images,
base_model=args.pretrained_model_name_or_path,
repo_folder=args.output_dir,
)
upload_folder(
repo_id=repo_id,
folder_path=args.output_dir,

2
examples/research_projects/onnxruntime/unconditional_image_generation/README.md
View File

@@ -34,7 +34,7 @@ In order to leverage onnxruntime to accelerate training, please use train_uncond
The command to train a DDPM UNet model on the Oxford Flowers dataset with onnxruntime:
```bash
accelerate launch train_unconditional_ort.py \
accelerate launch train_unconditional.py \
--dataset_name="huggan/flowers-102-categories" \
--resolution=64 --center_crop --random_flip \
--output_dir="ddpm-ema-flowers-64" \

1
examples/research_projects/onnxruntime/unconditional_image_generation/requirements.txt
View File

@@ -1,3 +1,4 @@
accelerate>=0.16.0
torchvision
datasets
tensorboard

158
examples/research_projects/onnxruntime/unconditional_image_generation/train_unconditional.py
View File

@@ -6,6 +6,7 @@ import os
from pathlib import Path
from typing import Optional
import accelerate
import datasets
import torch
import torch.nn.functional as F
@@ -14,7 +15,9 @@ from accelerate.logging import get_logger
from accelerate.utils import ProjectConfiguration
from datasets import load_dataset
from huggingface_hub import HfFolder, Repository, create_repo, whoami
from onnxruntime.training.optim.fp16_optimizer import FP16_Optimizer as ORT_FP16_Optimizer
from onnxruntime.training.ortmodule import ORTModule
from packaging import version
from torchvision import transforms
from tqdm.auto import tqdm
@@ -22,11 +25,12 @@ import diffusers
from diffusers import DDPMPipeline, DDPMScheduler, UNet2DModel
from diffusers.optimization import get_scheduler
from diffusers.training_utils import EMAModel
from diffusers.utils import check_min_version, is_tensorboard_available, is_wandb_available
from diffusers.utils import check_min_version, is_accelerate_version, is_tensorboard_available, is_wandb_available
from diffusers.utils.import_utils import is_xformers_available
# Will error if the minimal version of diffusers is not installed. Remove at your own risks.
check_min_version("0.13.0.dev0")
check_min_version("0.17.0.dev0")
logger = get_logger(__name__, log_level="INFO")
@@ -34,6 +38,7 @@ logger = get_logger(__name__, log_level="INFO")
def _extract_into_tensor(arr, timesteps, broadcast_shape):
"""
Extract values from a 1-D numpy array for a batch of indices.
:param arr: the 1-D numpy array.
:param timesteps: a tensor of indices into the array to extract.
:param broadcast_shape: a larger shape of K dimensions with the batch
@@ -66,6 +71,12 @@ def parse_args():
default=None,
help="The config of the Dataset, leave as None if there's only one config.",
)
parser.add_argument(
"--model_config_name_or_path",
type=str,
default=None,
help="The config of the UNet model to train, leave as None to use standard DDPM configuration.",
)
parser.add_argument(
"--train_data_dir",
type=str,
@@ -251,6 +262,9 @@ def parse_args():
' `--checkpointing_steps`, or `"latest"` to automatically select the last available checkpoint.'
),
)
parser.add_argument(
"--enable_xformers_memory_efficient_attention", action="store_true", help="Whether or not to use xformers."
)
args = parser.parse_args()
env_local_rank = int(os.environ.get("LOCAL_RANK", -1))
@@ -295,6 +309,40 @@ def main(args):
raise ImportError("Make sure to install wandb if you want to use it for logging during training.")
import wandb
# `accelerate` 0.16.0 will have better support for customized saving
if version.parse(accelerate.__version__) >= version.parse("0.16.0"):
# create custom saving & loading hooks so that `accelerator.save_state(...)` serializes in a nice format
def save_model_hook(models, weights, output_dir):
if args.use_ema:
ema_model.save_pretrained(os.path.join(output_dir, "unet_ema"))
for i, model in enumerate(models):
model.save_pretrained(os.path.join(output_dir, "unet"))
# make sure to pop weight so that corresponding model is not saved again
weights.pop()
def load_model_hook(models, input_dir):
if args.use_ema:
load_model = EMAModel.from_pretrained(os.path.join(input_dir, "unet_ema"), UNet2DModel)
ema_model.load_state_dict(load_model.state_dict())
ema_model.to(accelerator.device)
del load_model
for i in range(len(models)):
# pop models so that they are not loaded again
model = models.pop()
# load diffusers style into model
load_model = UNet2DModel.from_pretrained(input_dir, subfolder="unet")
model.register_to_config(**load_model.config)
model.load_state_dict(load_model.state_dict())
del load_model
accelerator.register_save_state_pre_hook(save_model_hook)
accelerator.register_load_state_pre_hook(load_model_hook)
# Make one log on every process with the configuration for debugging.
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
@@ -328,29 +376,33 @@ def main(args):
os.makedirs(args.output_dir, exist_ok=True)
# Initialize the model
model = UNet2DModel(
sample_size=args.resolution,
in_channels=3,
out_channels=3,
layers_per_block=2,
block_out_channels=(128, 128, 256, 256, 512, 512),
down_block_types=(
"DownBlock2D",
"DownBlock2D",
"DownBlock2D",
"DownBlock2D",
"AttnDownBlock2D",
"DownBlock2D",
),
up_block_types=(
"UpBlock2D",
"AttnUpBlock2D",
"UpBlock2D",
"UpBlock2D",
"UpBlock2D",
"UpBlock2D",
),
)
if args.model_config_name_or_path is None:
model = UNet2DModel(
sample_size=args.resolution,
in_channels=3,
out_channels=3,
layers_per_block=2,
block_out_channels=(128, 128, 256, 256, 512, 512),
down_block_types=(
"DownBlock2D",
"DownBlock2D",
"DownBlock2D",
"DownBlock2D",
"AttnDownBlock2D",
"DownBlock2D",
),
up_block_types=(
"UpBlock2D",
"AttnUpBlock2D",
"UpBlock2D",
"UpBlock2D",
"UpBlock2D",
"UpBlock2D",
),
)
else:
config = UNet2DModel.load_config(args.model_config_name_or_path)
model = UNet2DModel.from_config(config)
# Create EMA for the model.
if args.use_ema:
@@ -360,8 +412,23 @@ def main(args):
use_ema_warmup=True,
inv_gamma=args.ema_inv_gamma,
power=args.ema_power,
model_cls=UNet2DModel,
model_config=model.config,
)
if args.enable_xformers_memory_efficient_attention:
if is_xformers_available():
import xformers
xformers_version = version.parse(xformers.__version__)
if xformers_version == version.parse("0.0.16"):
logger.warn(
"xFormers 0.0.16 cannot be used for training in some GPUs. If you observe problems during training, please update xFormers to at least 0.0.17. See https://huggingface.co/docs/diffusers/main/en/optimization/xformers for more details."
)
model.enable_xformers_memory_efficient_attention()
else:
raise ValueError("xformers is not available. Make sure it is installed correctly")
# Initialize the scheduler
accepts_prediction_type = "prediction_type" in set(inspect.signature(DDPMScheduler.__init__).parameters.keys())
if accepts_prediction_type:
@@ -382,6 +449,8 @@ def main(args):
eps=args.adam_epsilon,
)
optimizer = ORT_FP16_Optimizer(optimizer)
# Get the datasets: you can either provide your own training and evaluation files (see below)
# or specify a Dataset from the hub (the dataset will be downloaded automatically from the datasets Hub).
@@ -434,10 +503,7 @@ def main(args):
model, optimizer, train_dataloader, lr_scheduler
)
model = ORTModule(model)
if args.use_ema:
accelerator.register_for_checkpointing(ema_model)
ema_model.to(accelerator.device)
# We need to initialize the trackers we use, and also store our configuration.
@@ -446,6 +512,8 @@ def main(args):
run = os.path.split(__file__)[-1].split(".")[0]
accelerator.init_trackers(run)
model = ORTModule(model)
total_batch_size = args.train_batch_size * accelerator.num_processes * args.gradient_accumulation_steps
num_update_steps_per_epoch = math.ceil(len(train_dataloader) / args.gradient_accumulation_steps)
max_train_steps = args.num_epochs * num_update_steps_per_epoch
@@ -552,7 +620,7 @@ def main(args):
logs = {"loss": loss.detach().item(), "lr": lr_scheduler.get_last_lr()[0], "step": global_step}
if args.use_ema:
logs["ema_decay"] = ema_model.decay
logs["ema_decay"] = ema_model.cur_decay_value
progress_bar.set_postfix(**logs)
accelerator.log(logs, step=global_step)
progress_bar.close()
@@ -563,8 +631,11 @@ def main(args):
if accelerator.is_main_process:
if epoch % args.save_images_epochs == 0 or epoch == args.num_epochs - 1:
unet = accelerator.unwrap_model(model)
if args.use_ema:
ema_model.store(unet.parameters())
ema_model.copy_to(unet.parameters())
pipeline = DDPMPipeline(
unet=unet,
scheduler=noise_scheduler,
@@ -575,18 +646,24 @@ def main(args):
images = pipeline(
generator=generator,
batch_size=args.eval_batch_size,
output_type="numpy",
num_inference_steps=args.ddpm_num_inference_steps,
output_type="numpy",
).images
if args.use_ema:
ema_model.restore(unet.parameters())
# denormalize the images and save to tensorboard
images_processed = (images * 255).round().astype("uint8")
if args.logger == "tensorboard":
accelerator.get_tracker("tensorboard").add_images(
"test_samples", images_processed.transpose(0, 3, 1, 2), epoch
)
if is_accelerate_version(">=", "0.17.0.dev0"):
tracker = accelerator.get_tracker("tensorboard", unwrap=True)
else:
tracker = accelerator.get_tracker("tensorboard")
tracker.add_images("test_samples", images_processed.transpose(0, 3, 1, 2), epoch)
elif args.logger == "wandb":
# Upcoming `log_images` helper coming in https://github.com/huggingface/accelerate/pull/962/files
accelerator.get_tracker("wandb").log(
{"test_samples": [wandb.Image(img) for img in images_processed], "epoch": epoch},
step=global_step,
@@ -594,7 +671,22 @@ def main(args):
if epoch % args.save_model_epochs == 0 or epoch == args.num_epochs - 1:
# save the model
unet = accelerator.unwrap_model(model)
if args.use_ema:
ema_model.store(unet.parameters())
ema_model.copy_to(unet.parameters())
pipeline = DDPMPipeline(
unet=unet,
scheduler=noise_scheduler,
)
pipeline.save_pretrained(args.output_dir)
if args.use_ema:
ema_model.restore(unet.parameters())
if args.push_to_hub:
repo.push_to_hub(commit_message=f"Epoch {epoch}", blocking=False)