dataset_code/sekai/offload/offoload_features_hv_official.py

import argparse
import os
from tqdm import tqdm
from diffusers import AutoencoderKLHunyuanVideo
from transformers import (
    CLIPTextModel,
    CLIPTokenizer,
    LlamaModel,
    LlamaTokenizerFast,
    SiglipImageProcessor,
    SiglipVisionModel,
)
from diffusers.video_processor import VideoProcessor
from diffusers.utils import export_to_video, load_image

from dummy_dataloader_official import BucketedFeatureDataset, BucketedSampler, collate_fn
from torch.utils.data import DataLoader

import torch
import torch.distributed as dist
import torch.nn as nn
from torch.nn.parallel import DistributedDataParallel as DDP
from torch.utils.data.distributed import DistributedSampler
from torch.utils.data import Subset
import torchvision.transforms as transforms
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.animation import FuncAnimation
from IPython.display import HTML, display
from IPython.display import clear_output

from accelerate import Accelerator, DistributedType
from accelerate.logging import get_logger
from accelerate.utils import DistributedDataParallelKwargs, ProjectConfiguration, set_seed
from diffusers.training_utils import free_memory

from accelerate import Accelerator
from utils_framepack import encode_image, encode_prompt

def setup_distributed_env():
    dist.init_process_group(backend="nccl")
    torch.cuda.set_device(int(os.environ["LOCAL_RANK"]))

def cleanup_distributed_env():
    dist.destroy_process_group()

def main(rank, world_size, global_rank, stride, batch_size, dataloader_num_workers, csv_file, video_folder, output_latent_folder, pretrained_model_name_or_path, siglip_model_name_or_path):
    weight_dtype = torch.bfloat16
    device = rank
    seed = 42

    # Load the tokenizers
    tokenizer_one = LlamaTokenizerFast.from_pretrained(
        pretrained_model_name_or_path,
        subfolder="tokenizer",
    )
    tokenizer_two = CLIPTokenizer.from_pretrained(
        pretrained_model_name_or_path,
        subfolder="tokenizer_2",
    )
    feature_extractor = SiglipImageProcessor.from_pretrained(
        siglip_model_name_or_path,
        subfolder="feature_extractor",

    )

    vae = AutoencoderKLHunyuanVideo.from_pretrained(
        pretrained_model_name_or_path,
        subfolder="vae",
        torch_dtype=torch.float32,
    )
    vae_scale_factor_spatial = vae.spatial_compression_ratio
    video_processor = VideoProcessor(vae_scale_factor=vae_scale_factor_spatial)

    text_encoder_one = LlamaModel.from_pretrained(
        pretrained_model_name_or_path,
        subfolder="text_encoder",
        torch_dtype=weight_dtype,
    )
    text_encoder_two = CLIPTextModel.from_pretrained(
        pretrained_model_name_or_path,
        subfolder="text_encoder_2",
        torch_dtype=weight_dtype,
    )
    image_encoder = SiglipVisionModel.from_pretrained(
        siglip_model_name_or_path,
        subfolder="image_encoder",
        torch_dtype=weight_dtype,
    )

    vae.requires_grad_(False)
    text_encoder_one.requires_grad_(False)
    text_encoder_two.requires_grad_(False)
    image_encoder.requires_grad_(False)
    vae.eval()
    text_encoder_one.eval()
    text_encoder_two.eval()
    image_encoder.eval()

    vae = vae.to(device)
    text_encoder_one = text_encoder_one.to(device)
    text_encoder_two = text_encoder_two.to(device)
    image_encoder = image_encoder.to(device)

    dist.barrier()
    dataset = BucketedFeatureDataset(csv_file=csv_file, video_folder=video_folder, stride=stride)
    sampler = BucketedSampler(dataset, batch_size=batch_size, drop_last=False, shuffle=False, seed=seed)
    dataloader = DataLoader(
        dataset, 
        batch_sampler=sampler, 
        collate_fn=collate_fn, 
        num_workers=dataloader_num_workers,
        # pin_memory=True,
        prefetch_factor=2 if dataloader_num_workers != 0 else None,
        # persistent_workers=True if dataloader_num_workers > 0 else False,
    )

    print(len(dataset), len(dataloader))
    accelerator = Accelerator()
    dataloader = accelerator.prepare(dataloader)
    print(f"Dataset size: {len(dataset)}, Dataloader batches: {len(dataloader)}")
    print(f"Process index: {accelerator.process_index}, World size: {accelerator.num_processes}")

    sampler.set_epoch(0)
    if rank==0:
        pbar = tqdm(total=len(dataloader), desc="Processing")
    dist.barrier()
    for idx, batch in enumerate(dataloader):
        free_memory()

        valid_indices = []
        valid_uttids = []
        valid_num_frames = []
        valid_heights = []
        valid_widths = []
        valid_videos = []
        valid_prompts = []
        valid_first_frames_images = []

        for i, (uttid, num_frame, height, width) in enumerate(zip(batch["uttid"], batch["video_metadata"]["num_frames"], batch["video_metadata"]["height"], batch["video_metadata"]["width"])):
            os.makedirs(output_latent_folder, exist_ok=True)
            output_path = os.path.join(output_latent_folder, f"{uttid}_{num_frame}_{height}_{width}.pt")
            if not os.path.exists(output_path):
                valid_indices.append(i)
                valid_uttids.append(uttid)
                valid_num_frames.append(num_frame)
                valid_heights.append(height)
                valid_widths.append(width)
                valid_videos.append(batch["videos"][i])
                valid_prompts.append(batch["prompts"][i])
                valid_first_frames_images.append(batch["first_frames_images"][i])
            else:
                print(f"skipping {uttid}")
        
        if not valid_indices:
            print("skipping entire batch!")
            if rank==0:
                pbar.update(1)
                pbar.set_postfix({"batch": idx})
            continue
        
        batch = None
        del batch
        free_memory()

        batch = {
            "uttid": valid_uttids,
            "video_metadata": {
                "num_frames": valid_num_frames,
                "height": valid_heights,
                "width": valid_widths
            },
            "videos": torch.stack(valid_videos),
            "prompts": valid_prompts,
            "first_frames_images": torch.stack(valid_first_frames_images),
        }
        
        if len(batch["uttid"]) == 0:
            print("All samples in this batch are already processed, skipping!")
            continue

        with torch.no_grad():
            # Get Vae feature 1
            pixel_values = batch["videos"].permute(0, 2, 1, 3, 4).to(dtype=vae.dtype, device=device)
            vae_latents = vae.encode(pixel_values).latent_dist.sample()
            vae_latents = vae_latents * vae.config.scaling_factor

            # Encode prompts
            prompts = batch["prompts"]
            prompt_embeds, pooled_prompt_embeds, prompt_attention_mask = encode_prompt(
                tokenizer=tokenizer_one,
                text_encoder=text_encoder_one,
                tokenizer_2=tokenizer_two,
                text_encoder_2=text_encoder_two,
                prompt=prompts,
                device=device,
            )

            # Prepare images
            image_tensor = batch["first_frames_images"]
            images = [transforms.ToPILImage()(x.to(torch.uint8)) for x in image_tensor]
            image = video_processor.preprocess(image=images, height=batch["videos"].shape[-2], width=batch["videos"].shape[-1])
            image_embeds = encode_image(
                feature_extractor,
                image_encoder,
                image,
                device=device,
                dtype=weight_dtype,
            )

        for uttid, num_frame, height, width, cur_vae_latent, cur_prompt_embed, cur_pooled_prompt_embed, cur_prompt_attention_mask, cur_image_embed in zip(batch["uttid"], batch["video_metadata"]["num_frames"], batch["video_metadata"]["height"], batch["video_metadata"]["width"], vae_latents, prompt_embeds, pooled_prompt_embeds, prompt_attention_mask, image_embeds):
            output_path = os.path.join(output_latent_folder, f"{uttid}_{num_frame}_{height}_{width}.pt")
            temp_to_save = {
                    "vae_latent": cur_vae_latent.cpu().detach(),
                    "prompt_embed": cur_prompt_embed.cpu().detach(),
                    "pooled_prompt_embeds": cur_pooled_prompt_embed.cpu().detach(),
                    "prompt_attention_mask": cur_prompt_attention_mask.cpu().detach(),
                    "image_embeds": cur_image_embed.cpu().detach(),
                }
            torch.save(
                temp_to_save,
                output_path
            )
            print(f"save latent to: {output_path}")
        
        if rank==0:
            pbar.update(1)
            pbar.set_postfix({"batch": idx})


        pixel_values = None
        prompts = None
        image_tensor = None
        images = None
        vae_latents = None
        vae_latents_2 = None
        image_embeds = None
        prompt_embeds = None
        pooled_prompt_embeds = None
        prompt_attention_mask = None
        batch = None
        valid_indices = None
        valid_uttids = None
        valid_num_frames = None
        valid_heights = None
        valid_widths = None
        valid_videos = None
        valid_prompts = None
        valid_first_frames_images = None
        temp_to_save = None

        del pixel_values
        del prompts
        del image_tensor
        del images
        del vae_latents
        del vae_latents_2
        del image_embeds
        del batch
        del valid_indices
        del valid_uttids
        del valid_num_frames
        del valid_heights
        del valid_widths
        del valid_videos
        del valid_prompts
        del valid_first_frames_images
        del temp_to_save

        free_memory()
        dist.barrier()
    # dist.barrier()
    dist.destroy_process_group()

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Script for running model training and data processing.")
    parser.add_argument("--stride", type=int, default=2, help="Batch size for processing")
    parser.add_argument("--batch_size", type=int, default=1, help="Batch size for processing")
    parser.add_argument("--dataloader_num_workers", type=int, default=0, help="Number of workers for data loading")
    parser.add_argument("--csv_file", type=str, default="/mnt/bn/yufan-dev-my/ysh/Ckpts/Lixsp11/Sekai-Project/train/sekai-game-drone_updated.csv", help="Path to the config file")
    parser.add_argument("--video_folder", type=str, default="/mnt/bn/yufan-dev-my/ysh/Ckpts/Lixsp11/Sekai-Project/sekai-game-drone", help="Path to the config file")
    parser.add_argument("--output_latent_folder", type=str, default="/mnt/bn/yufan-dev-my/ysh/Ckpts/Lixsp11/Sekai-Project/sekai-game-drone/latents", help="Folder to store output latents")
    parser.add_argument("--pretrained_model_name_or_path", type=str, default="/mnt/bn/yufan-dev-my/ysh/Ckpts/hunyuanvideo-community/HunyuanVideo", help="Pretrained model path")
    parser.add_argument("--siglip_model_name_or_path", type=str, default="/mnt/bn/yufan-dev-my/ysh/Ckpts/lllyasviel/flux_redux_bfl", help="Siglip model path")
    args = parser.parse_args()


    setup_distributed_env()

    global_rank = dist.get_rank()
    local_rank = int(os.environ["LOCAL_RANK"])
    device = torch.cuda.current_device()
    world_size = dist.get_world_size()

    main(
        rank=device,
        world_size=world_size,
        global_rank=global_rank,
        stride=args.stride,
        batch_size=args.batch_size,
        dataloader_num_workers=args.dataloader_num_workers,
        csv_file=args.csv_file,
        video_folder=args.video_folder,
        output_latent_folder=args.output_latent_folder,
        pretrained_model_name_or_path=args.pretrained_model_name_or_path,
        siglip_model_name_or_path=args.siglip_model_name_or_path,
    )