File size: 3,809 Bytes
ca7299e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | import os
import GPUtil
import torch
import sys
import hydra
import wandb
# Pytorch lightning imports
from pytorch_lightning import LightningDataModule, LightningModule, Trainer
from pytorch_lightning.loggers.wandb import WandbLogger
from pytorch_lightning.trainer import Trainer
from pytorch_lightning.callbacks import ModelCheckpoint
from omegaconf import DictConfig, OmegaConf
from data.pdb_dataloader import PdbDataModule
from models.flow_module import FlowModule
from experiments import utils as eu
os.environ["WANDB_MODE"] = "offline"
log = eu.get_pylogger(__name__)
torch.set_float32_matmul_precision('high')
class Experiment:
def __init__(self, *, cfg: DictConfig):
self._cfg = cfg
self._data_cfg = cfg.data
self._exp_cfg = cfg.experiment
self._datamodule: LightningDataModule = PdbDataModule(self._data_cfg)
self._model: LightningModule = FlowModule(self._cfg)
def train(self):
callbacks = []
if self._exp_cfg.debug:
log.info("Debug mode.")
logger = None
self._exp_cfg.num_devices = 1
self._data_cfg.loader.num_workers = 0
else:
logger = WandbLogger(
**self._exp_cfg.wandb,
)
# Checkpoint directory.
ckpt_dir = self._exp_cfg.checkpointer.dirpath
os.makedirs(ckpt_dir, exist_ok=True)
log.info(f"Checkpoints saved to {ckpt_dir}")
# Model checkpoints
callbacks.append(ModelCheckpoint(**self._exp_cfg.checkpointer))
# Save config
cfg_path = os.path.join(ckpt_dir, 'config.yaml')
with open(cfg_path, 'w') as f:
OmegaConf.save(config=self._cfg, f=f.name)
cfg_dict = OmegaConf.to_container(self._cfg, resolve=True)
flat_cfg = dict(eu.flatten_dict(cfg_dict))
if isinstance(logger.experiment.config, wandb.sdk.wandb_config.Config):
logger.experiment.config.update(flat_cfg)
devices = GPUtil.getAvailable(order='memory', limit = 8)[:self._exp_cfg.num_devices]
log.info(f"Using devices: {devices}")
trainer = Trainer(
**self._exp_cfg.trainer,
callbacks=callbacks,
logger=logger,
use_distributed_sampler=False,
enable_progress_bar=True,
enable_model_summary=True,
devices=devices,
)
if self._exp_cfg.warm_start is not None:
# Lightning will always save the hyperparameters to the checkpoint
self._model = self._model.load_from_checkpoint(self._exp_cfg.warm_start, strict=False, map_location="cpu")
trainer.fit(
model=self._model,
datamodule=self._datamodule,
# ckpt_path=self._exp_cfg.warm_start
)
@hydra.main(version_base=None, config_path="../configs", config_name="base.yaml")
def main(cfg: DictConfig):
if cfg.experiment.warm_start is not None and cfg.experiment.warm_start_cfg_override:
# Loads warm start config.
warm_start_cfg_path = os.path.join(
os.path.dirname(cfg.experiment.warm_start), 'config.yaml')
warm_start_cfg = OmegaConf.load(warm_start_cfg_path)
# Warm start config may not have latest fields in the base config.
# Add these fields to the warm start config.
OmegaConf.set_struct(cfg.model, False)
OmegaConf.set_struct(warm_start_cfg.model, False)
cfg.model = OmegaConf.merge(cfg.model, warm_start_cfg.model)
OmegaConf.set_struct(cfg.model, True)
log.info(f'Loaded warm start config from {warm_start_cfg_path}')
exp = Experiment(cfg=cfg)
exp.train()
if __name__ == "__main__":
main()
|