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train.py
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train.py
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import argparse
import os
import shutil
import numpy as np
import torch
# import torch.utils.tensorboard
from sklearn.metrics import roc_auc_score
from torch.nn.utils import clip_grad_norm_
from torch_geometric.loader import DataLoader
from torch_geometric.transforms import Compose
from tqdm.auto import tqdm
import utils.misc as misc
import utils.train as utils_train
import utils.transforms as trans
from datasets import get_dataset
from datasets.pl_data import FOLLOW_BATCH
from models.molopt_score_model import ScorePosNet3D
from graphbap.bapnet import BAPNet
def get_auroc(y_true, y_pred, feat_mode):
y_true = np.array(y_true)
y_pred = np.array(y_pred)
avg_auroc = 0.
possible_classes = set(y_true)
for c in possible_classes:
auroc = roc_auc_score(y_true == c, y_pred[:, c])
avg_auroc += auroc * np.sum(y_true == c)
mapping = {
'basic': trans.MAP_INDEX_TO_ATOM_TYPE_ONLY,
'add_aromatic': trans.MAP_INDEX_TO_ATOM_TYPE_AROMATIC,
'full': trans.MAP_INDEX_TO_ATOM_TYPE_FULL
}
print(f'atom: {mapping[feat_mode][c]} \t auc roc: {auroc:.4f}')
return avg_auroc / len(y_true)
if __name__ == '__main__':
root_dir = '/home/huangzl/workspace2/IPDiff-gspbapv5comp-n05'
parser = argparse.ArgumentParser()
parser.add_argument('--config', type=str, default=root_dir + '/configs/training.yml')
parser.add_argument('--device', type=str, default='cuda')
parser.add_argument('--logdir', type=str, default=root_dir + '/logs')
parser.add_argument('--tag', type=str, default='')
parser.add_argument('--train_report_iter', type=int, default=200)
args = parser.parse_args()
# Load configs
config = misc.load_config(args.config)
config_name = os.path.basename(args.config)[:os.path.basename(args.config).rfind('.')]
misc.seed_all(config.train.seed)
# Logging
log_dir = misc.get_new_log_dir(args.logdir, prefix=config_name, tag=args.tag)
ckpt_dir = os.path.join(log_dir, 'checkpoints')
os.makedirs(ckpt_dir, exist_ok=True)
vis_dir = os.path.join(log_dir, 'vis')
os.makedirs(vis_dir, exist_ok=True)
logger = misc.get_logger('train', log_dir)
logger.info(args)
logger.info(config)
shutil.copyfile(args.config, os.path.join(log_dir, os.path.basename(args.config)))
shutil.copytree(root_dir + '/models', os.path.join(log_dir, 'models'))
# Transforms
protein_featurizer = trans.FeaturizeProteinAtom()
ligand_featurizer = trans.FeaturizeLigandAtom(config.data.transform.ligand_atom_mode)
transform_list = [
protein_featurizer,
ligand_featurizer,
trans.FeaturizeLigandBond(),
]
if config.data.transform.random_rot:
transform_list.append(trans.RandomRotation())
transform = Compose(transform_list)
# Datasets and loaders
logger.info('Loading dataset...')
dataset, subsets = get_dataset(
config=config.data,
transform=transform,
)
train_set, val_set = subsets['train'], subsets['test']
logger.info(f'Training: {len(train_set)} Validation: {len(val_set)}')
collate_exclude_keys = ['ligand_nbh_list']
train_iterator = utils_train.inf_iterator(DataLoader(
train_set,
batch_size=config.train.batch_size,
shuffle=True,
num_workers=config.train.num_workers,
follow_batch=FOLLOW_BATCH,
exclude_keys=collate_exclude_keys
))
val_loader = DataLoader(val_set, config.train.batch_size, shuffle=False,
follow_batch=FOLLOW_BATCH, exclude_keys=collate_exclude_keys)
# Model
logger.info('Building model...')
net_cond = BAPNet(ckpt_path=config.net_cond.ckpt_path, hidden_nf=config.net_cond.hidden_dim).to(args.device)
model = ScorePosNet3D(
# net_cond,
config.model,
protein_atom_feature_dim=protein_featurizer.feature_dim,
ligand_atom_feature_dim=ligand_featurizer.feature_dim
).to(args.device)
print(f'protein feature dim: {protein_featurizer.feature_dim} ligand feature dim: {ligand_featurizer.feature_dim}')
logger.info(f'# trainable parameters: {misc.count_parameters(model) / 1e6:.4f} M')
# Optimizer and scheduler
optimizer = utils_train.get_optimizer(config.train.optimizer, model)
scheduler = utils_train.get_scheduler(config.train.scheduler, optimizer)
def train(it):
model.train()
optimizer.zero_grad()
for _ in range(config.train.n_acc_batch):
batch = next(train_iterator).to(args.device)
protein_noise = torch.randn_like(batch.protein_pos) * config.train.pos_noise_std
gt_protein_pos = batch.protein_pos + protein_noise
results = model.get_diffusion_loss(
net_cond=net_cond,
protein_pos=gt_protein_pos,
protein_v=batch.protein_atom_feature.float(),
batch_protein=batch.protein_element_batch,
ligand_pos=batch.ligand_pos,
ligand_v=batch.ligand_atom_feature_full,
batch_ligand=batch.ligand_element_batch
)
loss, loss_pos, loss_v = results['loss'], results['loss_pos'], results['loss_v']
loss = loss / config.train.n_acc_batch
loss.backward()
orig_grad_norm = clip_grad_norm_(model.parameters(), config.train.max_grad_norm)
optimizer.step()
if it % args.train_report_iter == 0:
logger.info(
'[Train] Iter %d | Loss %.6f (pos %.6f | v %.6f) | Lr: %.6f | Grad Norm: %.6f' % (
it, loss, loss_pos, loss_v, optimizer.param_groups[0]['lr'], orig_grad_norm
)
)
def validate(it):
# fix time steps
sum_loss, sum_loss_pos, sum_loss_v, sum_n = 0, 0, 0, 0
sum_loss_bond, sum_loss_non_bond = 0, 0
all_pred_v, all_true_v = [], []
all_pred_bond_type, all_gt_bond_type = [], []
with torch.no_grad():
model.eval()
for batch in tqdm(val_loader, desc='Validate'):
batch = batch.to(args.device)
batch_size = batch.num_graphs
t_loss, t_loss_pos, t_loss_v = [], [], []
for t in np.linspace(0, model.num_timesteps - 1, 10).astype(int):
time_step = torch.tensor([t] * batch_size).to(args.device)
results = model.get_diffusion_loss(
net_cond=net_cond,
protein_pos=batch.protein_pos,
protein_v=batch.protein_atom_feature.float(),
batch_protein=batch.protein_element_batch,
ligand_pos=batch.ligand_pos,
ligand_v=batch.ligand_atom_feature_full,
batch_ligand=batch.ligand_element_batch,
time_step=time_step
)
loss, loss_pos, loss_v = results['loss'], results['loss_pos'], results['loss_v']
sum_loss += float(loss) * batch_size
sum_loss_pos += float(loss_pos) * batch_size
sum_loss_v += float(loss_v) * batch_size
sum_n += batch_size
all_pred_v.append(results['ligand_v_recon'].detach().cpu().numpy())
all_true_v.append(batch.ligand_atom_feature_full.detach().cpu().numpy())
avg_loss = sum_loss / sum_n
avg_loss_pos = sum_loss_pos / sum_n
avg_loss_v = sum_loss_v / sum_n
atom_auroc = get_auroc(np.concatenate(all_true_v), np.concatenate(all_pred_v, axis=0),
feat_mode=config.data.transform.ligand_atom_mode)
if config.train.scheduler.type == 'plateau':
scheduler.step(avg_loss)
elif config.train.scheduler.type == 'warmup_plateau':
scheduler.step_ReduceLROnPlateau(avg_loss)
else:
scheduler.step()
logger.info(
'[Validate] Iter %05d | Loss %.6f | Loss pos %.6f | Loss v %.6f e-3 | Avg atom auroc %.6f' % (
it, avg_loss, avg_loss_pos, avg_loss_v * 1000, atom_auroc
)
)
return avg_loss
try:
best_loss, best_iter = None, None
for it in range(1, config.train.max_iters + 1):
# with torch.autograd.detect_anomaly():
train(it)
if it % config.train.val_freq == 0 or it == config.train.max_iters:
val_loss = validate(it)
if best_loss is None or val_loss < best_loss:
logger.info(f'[Validate] Best val loss achieved: {val_loss:.6f}')
best_loss, best_iter = val_loss, it
ckpt_path = os.path.join(ckpt_dir, '%d.pt' % it)
torch.save({
'config': config,
'model': model.state_dict(),
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
'iteration': it,
}, ckpt_path)
else:
logger.info(f'[Validate] Val loss is not improved. '
f'Best val loss: {best_loss:.6f} at iter {best_iter}')
except KeyboardInterrupt:
logger.info('Terminating...')