cosmos_predict1/diffusion/training/config/video2world_multiview/experiment.py

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from hydra.core.config_store import ConfigStore
from megatron.core import parallel_state
from torch.utils.data import DataLoader, DistributedSampler

from cosmos_predict1.diffusion.training.callbacks.iter_speed import IterSpeed
from cosmos_predict1.diffusion.training.callbacks.low_precision import LowPrecisionCallback
from cosmos_predict1.diffusion.training.datasets.dataset_multiview import Dataset
from cosmos_predict1.diffusion.training.models.extend_model_multiview import FSDPExtendDiffusionModel
from cosmos_predict1.diffusion.training.networks.general_dit_lvg_multiview import VideoExtendMultiviewGeneralDIT
from cosmos_predict1.utils import log
from cosmos_predict1.utils.callbacks.grad_clip import GradClip
from cosmos_predict1.utils.lazy_config import PLACEHOLDER
from cosmos_predict1.utils.lazy_config import LazyCall as L
from cosmos_predict1.utils.lazy_config import LazyDict


def get_sampler(dataset):
    return DistributedSampler(
        dataset,
        num_replicas=parallel_state.get_data_parallel_world_size(),
        rank=parallel_state.get_data_parallel_rank(),
        shuffle=True,
        seed=0,
    )


cs = ConfigStore.instance()

num_frames = 57
num_views = 5
view_keys = ["pinhole_front_left", "pinhole_front", "pinhole_front_right", "pinhole_side_left", "pinhole_side_right"]
example_multiview_dataset_waymo = L(Dataset)(
    dataset_dir="datasets/waymo",
    sequence_interval=1,
    num_frames=num_frames,
    view_keys=view_keys,
    video_size=(480, 848),
)


video2world_multiview_7b_example_waymo = LazyDict(
    dict(
        defaults=[
            {"override /net": "faditv2_7b"},
            {"override /conditioner": "video_cond"},
            {"override /ckpt_klass": "fsdp"},
            {"override /checkpoint": "local"},
            {"override /vae": "cosmos_diffusion_tokenizer_comp8x8x8"},
            "_self_",
        ],
        job=dict(
            project="posttraining",
            group="diffusion_video2world",
            name="video2world_multiview_7b_example_waymo",
        ),
        optimizer=dict(
            lr=2 ** (-14.3),  # 2**(-14.3) approx 5e-5
            weight_decay=0.1,
            betas=[0.9, 0.99],
            eps=1e-10,
        ),
        checkpoint=dict(
            save_iter=200,
            # broadcast_via_filesystem=True,
            broadcast_via_filesystem=False,
            load_path="checkpoints/Cosmos-Predict1-7B-Video2World-Sample-AV-Multiview/model.pt",
            load_training_state=False,
            strict_resume=False,
            keys_not_to_resume=[],
        ),
        trainer=dict(
            max_iter=2000,
            distributed_parallelism="fsdp",
            logging_iter=200,
            callbacks=dict(
                grad_clip=L(GradClip)(
                    model_key="model",
                    fsdp_enabled=True,
                ),
                low_prec=L(LowPrecisionCallback)(config=PLACEHOLDER, trainer=PLACEHOLDER, update_iter=1),
                iter_speed=L(IterSpeed)(
                    every_n=200,
                    hit_thres=5,
                ),
            ),
        ),
        model_parallel=dict(
            sequence_parallel=False,
            tensor_model_parallel_size=1,
            context_parallel_size=1,
        ),
        model=dict(
            n_views=num_views,
            # Use 16x16x32x40 latent shape for training
            latent_shape=[
                16,  # Latent channel dim
                16,  # Latent temporal dim
                88,  # Latent height dim
                160,  # Latent width dim
            ],
            loss_reduce="mean",
            ema=dict(
                enabled=True,
            ),
            fsdp_enabled=True,
            fsdp=dict(
                policy="block",
                checkpoint=True,
                min_num_params=1024,
                sharding_group_size=32,
                sharding_strategy="hybrid",
            ),
            net=L(VideoExtendMultiviewGeneralDIT)(
                rope_h_extrapolation_ratio=1,
                rope_w_extrapolation_ratio=1,
                rope_t_extrapolation_ratio=2,
                n_views=num_views,
            ),
            conditioner=dict(
                video_cond_bool=dict(
                    condition_location="first_random_n",
                    cfg_unconditional_type="zero_condition_region_condition_mask",
                    apply_corruption_to_condition_region="noise_with_sigma",
                    condition_on_augment_sigma=False,
                    dropout_rate=0.0,  # No dropout
                    first_random_n_num_condition_t_max=2,
                    normalize_condition_latent=False,
                    # Let the augment sigma mostly fall in the range of 0 to 0.3
                    augment_sigma_sample_p_mean=-3.0,
                    augment_sigma_sample_p_std=2.0,
                    augment_sigma_sample_multiplier=1.0,
                )
            ),
            vae=dict(pixel_chunk_duration=num_frames),
        ),
        model_obj=L(FSDPExtendDiffusionModel)(
            config=PLACEHOLDER,
            fsdp_checkpointer=PLACEHOLDER,
        ),
        # warming up for first 2500 steps~(when resume from 310000)
        scheduler=dict(
            warm_up_steps=[2500],
            cycle_lengths=[10000000000000],
            f_start=[1.0e-6],
            f_max=[1.0],
            f_min=[1.0],
        ),
        dataloader_train=L(DataLoader)(
            dataset=example_multiview_dataset_waymo,
            sampler=L(get_sampler)(dataset=example_multiview_dataset_waymo),
            batch_size=1,
            drop_last=True,
            pin_memory=True,
            num_workers=8,
        ),
        dataloader_val=L(DataLoader)(
            dataset=example_multiview_dataset_waymo,
            sampler=L(get_sampler)(dataset=example_multiview_dataset_waymo),
            batch_size=1,
            drop_last=True,
            pin_memory=True,
            num_workers=8,
        ),
    )
)


def register_experiments(cs):
    # Register the experiments
    for _item in [
        video2world_multiview_7b_example_waymo,
    ]:
        experiment_name = _item["job"]["name"]
        log.info(f"Registering experiment: {experiment_name}")
        cs.store(
            group="experiment",
            package="_global_",
            name=experiment_name,
            node=_item,
        )