def evaluate_epoch(self, epoch):
LOSSES_NAME = self.args.LOSSES_NAME
epoch_results = {}
for loss_name in LOSSES_NAME:
epoch_results[loss_name] = 0.
epoch_results[f'{loss_name}_count'] = 0
uid2ans = {}
self.model.eval()
with torch.no_grad():
if self.verbose:
loss_meter = LossMeter()
loss_meters = [LossMeter() for _ in range(len(LOSSES_NAME))]
pbar = tqdm(total=len(self.val_loader), ncols=250)
for step_i, batch in enumerate(self.val_loader):
if self.args.distributed:
results = self.model.module.valid_step(batch)
else:
results = self.model.valid_step(batch)
if 'qa' in self.args.losses:
qa_pred = results['qa_pred']
for uid, ans in zip(batch['uid'], qa_pred):
uid2ans[uid] = ans
for k, v in results.items():
if k in epoch_results:
if isinstance(v, int):
epoch_results[k] += v
elif isinstance(v, torch.Tensor):
epoch_results[k] += v.item()
if self.verbose:
desc_str = f'Valid Epoch {epoch} |'
for i, (loss_name, loss_meter) in enumerate(zip(LOSSES_NAME, loss_meters)):
if loss_name in results:
loss_meter.update(results[f'{loss_name}'] / results[f'{loss_name}_count'])
if len(loss_meter) > 0:
loss_count = epoch_results[f'{loss_name}_count']
desc_str += f' {loss_name} ({loss_count}) {loss_meter.val:.3f}'
pbar.set_description(desc_str)
pbar.update(1)
dist.barrier()
if self.verbose:
pbar.close()
dist.barrier()
if 'qa' not in self.args.losses:
uid2ans = None
return epoch_results, uid2ans
def __init__(self, args):
self.args = args
self.args.n_datasets = len(args.data)
self.modelPath = Path('checkpoints') / args.expName
self.logger = create_output_dir(args, self.modelPath)
self.data = [DatasetSet(d, args.seq_len, args) for d in args.data]
self.losses_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.loss_total = LossMeter('total')
self.evals_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.eval_total = LossMeter('eval total')
self.start_epoch = 0
#torch.manual_seed(args.seed)
#torch.cuda.manual_seed(args.seed)
#get the pretrained model checkpoints
checkpoint = args.checkpoint.parent.glob(args.checkpoint.name +
'_*.pth')
checkpoint = [c for c in checkpoint
if extract_id(c) in args.decoder][0]
model_args = torch.load(args.checkpoint.parent / 'args.pth')[0]
self.encoder = Encoder(model_args)
self.decoder = WaveNet(model_args)
self.encoder = Encoder(model_args)
self.encoder.load_state_dict(torch.load(checkpoint)['encoder_state'])
#encoder freeze
for param in self.encoder.parameters():
param.requires_grad = False
#self.logger.debug(f'encoder at start: {param}')
self.decoder = WaveNet(model_args)
self.decoder.load_state_dict(torch.load(checkpoint)['decoder_state'])
#decoder freeze
for param in self.decoder.layers[:-args.decoder_update].parameters():
param.requires_grad = False
#self.logger.debug(f'decoder at start: {param}')
self.encoder = torch.nn.DataParallel(self.encoder).cuda()
self.decoder = torch.nn.DataParallel(self.decoder).cuda()
self.model_optimizer = optim.Adam(chain(self.encoder.parameters(),
self.decoder.parameters()),
lr=args.lr)
self.lr_manager = torch.optim.lr_scheduler.ExponentialLR(
self.model_optimizer, args.lr_decay)
self.lr_manager.step()
def __init__(self, args):
self.args = args
self.args.n_datasets = len(self.args.data)
self.expPath = Path('checkpoints') / args.expName
torch.manual_seed(args.seed)
torch.cuda.manual_seed(args.seed)
self.logger = create_output_dir(args, self.expPath)
self.data = [DatasetSet(d, args.seq_len, args) for d in args.data]
self.losses_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.loss_total = LossMeter('total')
self.evals_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.eval_total = LossMeter('eval total')
self.encoder = Encoder(args)
self.decoder = WaveNet(args)
assert args.checkpoint, 'you MUST pass a checkpoint for the encoder'
if args.continue_training:
checkpoint_args_path = os.path.dirname(
args.checkpoint) + '/args.pth'
checkpoint_args = torch.load(checkpoint_args_path)
self.start_epoch = checkpoint_args[-1] + 1
else:
self.start_epoch = 0
states = torch.load(args.checkpoint)
self.encoder.load_state_dict(states['encoder_state'])
if args.continue_training:
self.decoder.load_state_dict(states['decoder_state'])
self.logger.info('Loaded checkpoint parameters')
self.encoder = torch.nn.DataParallel(self.encoder).cuda()
self.decoder = torch.nn.DataParallel(self.decoder).cuda()
self.model_optimizer = optim.Adam(self.decoder.parameters(),
lr=args.lr)
if args.continue_training:
self.model_optimizer.load_state_dict(
states['model_optimizer_state'])
self.lr_manager = torch.optim.lr_scheduler.ExponentialLR(
self.model_optimizer, args.lr_decay)
self.lr_manager.last_epoch = self.start_epoch
self.lr_manager.step()
class Trainer:
def __init__(self, args):
self.args = args
self.args.n_datasets = len(self.args.data)
self.expPath = Path('checkpoints') / args.expName
torch.manual_seed(args.seed)
torch.cuda.manual_seed(args.seed)
self.logger = create_output_dir(args, self.expPath)
self.data = [DatasetSet(d, args.seq_len, args) for d in args.data]
self.losses_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.loss_total = LossMeter('total')
self.evals_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.eval_total = LossMeter('eval total')
self.encoder = Encoder(args)
self.decoder = WaveNet(args)
assert args.checkpoint, 'you MUST pass a checkpoint for the encoder'
if args.continue_training:
checkpoint_args_path = os.path.dirname(
args.checkpoint) + '/args.pth'
checkpoint_args = torch.load(checkpoint_args_path)
self.start_epoch = checkpoint_args[-1] + 1
else:
self.start_epoch = 0
states = torch.load(args.checkpoint)
self.encoder.load_state_dict(states['encoder_state'])
if args.continue_training:
self.decoder.load_state_dict(states['decoder_state'])
self.logger.info('Loaded checkpoint parameters')
self.encoder = torch.nn.DataParallel(self.encoder).cuda()
self.decoder = torch.nn.DataParallel(self.decoder).cuda()
self.model_optimizer = optim.Adam(self.decoder.parameters(),
lr=args.lr)
if args.continue_training:
self.model_optimizer.load_state_dict(
states['model_optimizer_state'])
self.lr_manager = torch.optim.lr_scheduler.ExponentialLR(
self.model_optimizer, args.lr_decay)
self.lr_manager.last_epoch = self.start_epoch
self.lr_manager.step()
def eval_batch(self, x, x_aug, dset_num):
x, x_aug = x.float(), x_aug.float()
z = self.encoder(x)
y = self.decoder(x, z)
recon_loss = cross_entropy_loss(y, x)
self.evals_recon[dset_num].add(recon_loss.data.cpu().numpy().mean())
total_loss = recon_loss.mean().data.item()
self.eval_total.add(total_loss)
return total_loss
def train_batch(self, x, x_aug, dset_num):
x, x_aug = x.float(), x_aug.float()
# optimize G - reconstructs well
z = self.encoder(x_aug)
z = z.detach() # stop gradients
y = self.decoder(x, z)
recon_loss = cross_entropy_loss(y, x)
self.losses_recon[dset_num].add(recon_loss.data.cpu().numpy().mean())
loss = recon_loss.mean()
self.model_optimizer.zero_grad()
loss.backward()
if self.args.grad_clip is not None:
clip_grad_value_(self.decoder.parameters(), self.args.grad_clip)
self.model_optimizer.step()
self.loss_total.add(loss.data.item())
return loss.data.item()
def train_epoch(self, epoch):
for meter in self.losses_recon:
meter.reset()
self.loss_total.reset()
self.encoder.eval()
self.decoder.train()
n_batches = self.args.epoch_len
with tqdm(total=n_batches,
desc='Train epoch %d' % epoch) as train_enum:
for batch_num in range(n_batches):
if self.args.short and batch_num == 3:
break
dset_num = batch_num % self.args.n_datasets
x, x_aug = next(self.data[dset_num].train_iter)
x = wrap(x)
x_aug = wrap(x_aug)
batch_loss = self.train_batch(x, x_aug, dset_num)
train_enum.set_description(
f'Train (loss: {batch_loss:.2f}) epoch {epoch}')
train_enum.update()
def evaluate_epoch(self, epoch):
for meter in self.evals_recon:
meter.reset()
self.eval_total.reset()
self.encoder.eval()
self.decoder.eval()
n_batches = int(np.ceil(self.args.epoch_len / 10))
with tqdm(total=n_batches) as valid_enum, \
torch.no_grad():
for batch_num in range(n_batches):
if self.args.short and batch_num == 10:
break
dset_num = batch_num % self.args.n_datasets
x, x_aug = next(self.data[dset_num].valid_iter)
x = wrap(x)
x_aug = wrap(x_aug)
batch_loss = self.eval_batch(x, x_aug, dset_num)
valid_enum.set_description(
f'Test (loss: {batch_loss:.2f}) epoch {epoch}')
valid_enum.update()
@staticmethod
def format_losses(meters):
losses = [meter.summarize_epoch() for meter in meters]
return ', '.join('{:.4f}'.format(x) for x in losses)
def train_losses(self):
meters = [*self.losses_recon]
return self.format_losses(meters)
def eval_losses(self):
meters = [*self.evals_recon]
return self.format_losses(meters)
def train(self):
best_eval = float('inf')
# Begin!
for epoch in range(self.start_epoch,
self.start_epoch + self.args.epochs):
self.logger.info(
f'Starting epoch, Rank {self.args.rank}, Dataset: {self.args.data[self.args.rank]}'
)
self.train_epoch(epoch)
self.evaluate_epoch(epoch)
self.logger.info(
f'Epoch %s Rank {self.args.rank} - Train loss: (%s), Test loss (%s)',
epoch, self.train_losses(), self.eval_losses())
self.lr_manager.step()
val_loss = self.eval_total.summarize_epoch()
if val_loss < best_eval:
self.save_model(f'bestmodel_{self.args.rank}.pth')
best_eval = val_loss
if not self.args.per_epoch:
self.save_model(f'lastmodel_{self.args.rank}.pth')
else:
self.save_model(f'lastmodel_{epoch}_rank_{self.args.rank}.pth')
torch.save([self.args, epoch], '%s/args.pth' % self.expPath)
self.logger.debug('Ended epoch')
def save_model(self, filename):
save_path = self.expPath / filename
states = torch.load(self.args.checkpoint)
torch.save(
{
'encoder_state': states['encoder_state'],
'decoder_state': self.decoder.module.state_dict(),
'model_optimizer_state': self.model_optimizer.state_dict(),
'dataset': self.args.rank,
}, save_path)
self.logger.debug(f'Saved model to {save_path}')
def train(self):
if self.verbose:
loss_meter = LossMeter()
best_valid = 0.
best_epoch = 0
if 't5' in self.args.backbone:
if self.args.use_vision:
project_name = "VLT5_VQA"
else:
project_name = "T5_VQA"
elif 'bart' in self.args.backbone:
if self.args.use_vision:
project_name = "VLBart_VQA"
else:
project_name = "Bart_VQA"
wandb.init(project=project_name)
wandb.run.name = self.args.run_name
wandb.config.update(self.args)
wandb.watch(self.model)
src_dir = Path(__file__).resolve().parent
base_path = str(src_dir.parent)
src_dir = str(src_dir)
wandb.save(os.path.join(src_dir + "/*.py"), base_path=base_path)
if self.args.distributed:
dist.barrier()
global_step = 0
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
self.model.train()
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=120)
epoch_results = {
'loss': 0.,
}
quesid2ans = {}
for step_i, batch in enumerate(self.train_loader):
if self.args.fp16 and _use_native_amp:
with autocast():
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
else:
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
loss = results['loss']
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
loss = loss.detach()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(amp.master_params(
self.optim), self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
for param in self.model.parameters():
param.grad = None
global_step += 1
for k, v in results.items():
if k in epoch_results:
epoch_results[k] += v.item()
if self.lr_scheduler:
if version.parse(torch.__version__) >= version.parse("1.4"):
lr = self.lr_scheduler.get_last_lr()[0]
else:
lr = self.lr_scheduler.get_lr()[0]
else:
try:
lr = self.optim.get_lr()[0]
except AttributeError:
lr = self.args.lr
if self.verbose:
loss_meter.update(loss.item())
desc_str = f'Epoch {epoch} | LR {lr:.6f}'
desc_str += f' | Loss {loss_meter.val:4f}'
pbar.set_description(desc_str)
pbar.update(1)
if self.args.distributed:
dist.barrier()
if self.verbose:
pbar.close()
# Validation
score_dict = self.evaluate(self.val_loader)
if self.verbose:
valid_score = score_dict['topk_score'] * 100.
valid_score_raw = score_dict['overall']
if valid_score_raw > best_valid or epoch == 0:
best_valid = valid_score_raw
best_epoch = epoch
self.save("BEST")
log_str = ''
log_str += "\nEpoch %d: Valid Raw %0.2f Topk %0.2f" % (epoch, valid_score_raw, valid_score)
log_str += "\nEpoch %d: Best Raw %0.2f\n" % (best_epoch, best_valid)
wandb_log_dict = {}
wandb_log_dict['Train/Loss'] = epoch_results['loss'] / len(self.train_loader)
wandb_log_dict['Valid/score'] = valid_score
wandb_log_dict['Valid/raw_score'] = score_dict['overall']
for qtype, score in score_dict['perQuestionType'].items():
wandb_log_dict[f'Valid_Qtypes/{qtype}'] = score
for atype, score in score_dict['perAnswerType'].items():
if atype == 'yes/no':
atype = 'yes_no'
wandb_log_dict[f'Valid_Atypes/{atype}'] = score
wandb.log(wandb_log_dict, step=epoch)
print(log_str)
if self.args.distributed:
dist.barrier()
if self.verbose:
self.save("LAST")
# Test Set
best_path = os.path.join(self.args.output, 'BEST')
self.load(best_path)
quesid2ans = self.predict(self.test_loader)
if self.verbose:
evaluator = self.test_loader.evaluator
score_dict = evaluator.evaluate(quesid2ans)
evaluator.dump_result(quesid2ans)
acc_dict_all = evaluator.evaluate_raw(quesid2ans)
acc_dict_answerable = evaluator.evaluate_raw(quesid2ans, is_topk_optimal=True)
acc_dict_unanswerable = evaluator.evaluate_raw(quesid2ans, is_topk_optimal=False)
wandb_log_dict = {}
wandb_log_dict['Test/overall'] = acc_dict_all['overall']
wandb_log_dict['Test/topk_optimal'] = acc_dict_answerable['overall']
wandb_log_dict['Test/topk_not_optimal'] = acc_dict_unanswerable['overall']
for qtype, score in acc_dict_all['perQuestionType'].items():
wandb_log_dict[f'Test_Qtypes/{qtype}'] = score
for atype, score in acc_dict_all['perAnswerType'].items():
if atype == 'yes/no':
atype = 'yes_no'
wandb_log_dict[f'Test_Atypes/{atype}'] = score
print(wandb_log_dict)
wandb.log(wandb_log_dict)
if self.args.submit:
dump_path = os.path.join(self.args.output, 'submit.json')
self.predict(self.submit_test_loader, dump_path)
wandb.save(dump_path, base_path=self.args.output)
wandb.log({'finished': True})
if self.args.distributed:
dist.barrier()
exit()
def __init__(self, args):
self.args = args
self.args.n_datasets = len(self.args.data)
self.expPath = Path('checkpoints') / args.expName
torch.manual_seed(args.seed)
torch.cuda.manual_seed(args.seed)
self.logger = create_output_dir(args, self.expPath)
self.data = [DatasetSet(d, args.seq_len, args) for d in args.data]
assert not args.distributed or len(self.data) == int(
os.environ['WORLD_SIZE']
), "Number of datasets must match number of nodes"
self.losses_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.loss_d_right = LossMeter('d')
self.loss_total = LossMeter('total')
self.evals_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.eval_d_right = LossMeter('eval d')
self.eval_total = LossMeter('eval total')
self.encoder = Encoder(args)
self.decoder = WaveNet(args)
self.discriminator = ZDiscriminator(args)
if args.checkpoint:
checkpoint_args_path = os.path.dirname(
args.checkpoint) + '/args.pth'
checkpoint_args = torch.load(checkpoint_args_path)
self.start_epoch = checkpoint_args[-1] + 1
states = torch.load(args.checkpoint)
self.encoder.load_state_dict(states['encoder_state'])
self.decoder.load_state_dict(states['decoder_state'])
self.discriminator.load_state_dict(states['discriminator_state'])
self.logger.info('Loaded checkpoint parameters')
else:
self.start_epoch = 0
if args.distributed:
self.encoder.cuda()
self.encoder = torch.nn.parallel.DistributedDataParallel(
self.encoder)
self.discriminator.cuda()
self.discriminator = torch.nn.parallel.DistributedDataParallel(
self.discriminator)
self.logger.info('Created DistributedDataParallel')
else:
self.encoder = torch.nn.DataParallel(self.encoder).cuda()
self.discriminator = torch.nn.DataParallel(
self.discriminator).cuda()
self.decoder = torch.nn.DataParallel(self.decoder).cuda()
self.model_optimizer = optim.Adam(chain(self.encoder.parameters(),
self.decoder.parameters()),
lr=args.lr)
self.d_optimizer = optim.Adam(self.discriminator.parameters(),
lr=args.lr)
if args.checkpoint and args.load_optimizer:
self.model_optimizer.load_state_dict(
states['model_optimizer_state'])
self.d_optimizer.load_state_dict(states['d_optimizer_state'])
self.lr_manager = torch.optim.lr_scheduler.ExponentialLR(
self.model_optimizer, args.lr_decay)
self.lr_manager.last_epoch = self.start_epoch
self.lr_manager.step()
class Trainer:
def __init__(self, args):
self.args = args
self.args.n_datasets = len(self.args.data)
self.expPath = Path('checkpoints') / args.expName
torch.manual_seed(args.seed)
torch.cuda.manual_seed(args.seed)
self.logger = create_output_dir(args, self.expPath)
self.data = [DatasetSet(d, args.seq_len, args) for d in args.data]
assert not args.distributed or len(self.data) == int(
os.environ['WORLD_SIZE']
), "Number of datasets must match number of nodes"
self.losses_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.loss_d_right = LossMeter('d')
self.loss_total = LossMeter('total')
self.evals_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.eval_d_right = LossMeter('eval d')
self.eval_total = LossMeter('eval total')
self.encoder = Encoder(args)
self.decoder = WaveNet(args)
self.discriminator = ZDiscriminator(args)
if args.checkpoint:
checkpoint_args_path = os.path.dirname(
args.checkpoint) + '/args.pth'
checkpoint_args = torch.load(checkpoint_args_path)
self.start_epoch = checkpoint_args[-1] + 1
states = torch.load(args.checkpoint)
self.encoder.load_state_dict(states['encoder_state'])
self.decoder.load_state_dict(states['decoder_state'])
self.discriminator.load_state_dict(states['discriminator_state'])
self.logger.info('Loaded checkpoint parameters')
else:
self.start_epoch = 0
if args.distributed:
self.encoder.cuda()
self.encoder = torch.nn.parallel.DistributedDataParallel(
self.encoder)
self.discriminator.cuda()
self.discriminator = torch.nn.parallel.DistributedDataParallel(
self.discriminator)
self.logger.info('Created DistributedDataParallel')
else:
self.encoder = torch.nn.DataParallel(self.encoder).cuda()
self.discriminator = torch.nn.DataParallel(
self.discriminator).cuda()
self.decoder = torch.nn.DataParallel(self.decoder).cuda()
self.model_optimizer = optim.Adam(chain(self.encoder.parameters(),
self.decoder.parameters()),
lr=args.lr)
self.d_optimizer = optim.Adam(self.discriminator.parameters(),
lr=args.lr)
if args.checkpoint and args.load_optimizer:
self.model_optimizer.load_state_dict(
states['model_optimizer_state'])
self.d_optimizer.load_state_dict(states['d_optimizer_state'])
self.lr_manager = torch.optim.lr_scheduler.ExponentialLR(
self.model_optimizer, args.lr_decay)
self.lr_manager.last_epoch = self.start_epoch
self.lr_manager.step()
def eval_batch(self, x, x_aug, dset_num):
x, x_aug = x.float(), x_aug.float()
z = self.encoder(x)
y = self.decoder(x, z)
z_logits = self.discriminator(z)
z_classification = torch.max(z_logits, dim=1)[1]
z_accuracy = (z_classification == dset_num).float().mean()
self.eval_d_right.add(z_accuracy.data.item())
# discriminator_right = F.cross_entropy(z_logits, dset_num).mean()
discriminator_right = F.cross_entropy(
z_logits,
torch.tensor([dset_num] * x.size(0)).long().cuda()).mean()
recon_loss = cross_entropy_loss(y, x)
self.evals_recon[dset_num].add(recon_loss.data.cpu().numpy().mean())
total_loss = discriminator_right.data.item() * self.args.d_lambda + \
recon_loss.mean().data.item()
self.eval_total.add(total_loss)
return total_loss
def train_batch(self, x, x_aug, dset_num):
x, x_aug = x.float(), x_aug.float()
# Optimize D - discriminator right
z = self.encoder(x)
z_logits = self.discriminator(z)
discriminator_right = F.cross_entropy(
z_logits,
torch.tensor([dset_num] * x.size(0)).long().cuda()).mean()
loss = discriminator_right * self.args.d_lambda
self.d_optimizer.zero_grad()
loss.backward()
if self.args.grad_clip is not None:
clip_grad_value_(self.discriminator.parameters(),
self.args.grad_clip)
self.d_optimizer.step()
# optimize G - reconstructs well, discriminator wrong
z = self.encoder(x_aug)
y = self.decoder(x, z)
z_logits = self.discriminator(z)
discriminator_wrong = -F.cross_entropy(
z_logits,
torch.tensor([dset_num] * x.size(0)).long().cuda()).mean()
if not (-100 < discriminator_right.data.item() < 100):
self.logger.debug(f'z_logits: {z_logits.detach().cpu().numpy()}')
self.logger.debug(f'dset_num: {dset_num}')
recon_loss = cross_entropy_loss(y, x)
self.losses_recon[dset_num].add(recon_loss.data.cpu().numpy().mean())
loss = (recon_loss.mean() + self.args.d_lambda * discriminator_wrong)
self.model_optimizer.zero_grad()
loss.backward()
if self.args.grad_clip is not None:
clip_grad_value_(self.encoder.parameters(), self.args.grad_clip)
clip_grad_value_(self.decoder.parameters(), self.args.grad_clip)
self.model_optimizer.step()
self.loss_total.add(loss.data.item())
return loss.data.item()
def train_epoch(self, epoch):
for meter in self.losses_recon:
meter.reset()
self.loss_d_right.reset()
self.loss_total.reset()
self.encoder.train()
self.decoder.train()
self.discriminator.train()
n_batches = self.args.epoch_len
with tqdm(total=n_batches,
desc='Train epoch %d' % epoch) as train_enum:
for batch_num in range(n_batches):
if self.args.short and batch_num == 3:
break
if self.args.distributed:
assert self.args.rank < self.args.n_datasets, "No. of workers must be equal to #dataset"
# dset_num = (batch_num + self.args.rank) % self.args.n_datasets
dset_num = self.args.rank
else:
dset_num = batch_num % self.args.n_datasets
x, x_aug = next(self.data[dset_num].train_iter)
x = wrap(x)
x_aug = wrap(x_aug)
batch_loss = self.train_batch(x, x_aug, dset_num)
train_enum.set_description(
f'Train (loss: {batch_loss:.2f}) epoch {epoch}')
train_enum.update()
def evaluate_epoch(self, epoch):
for meter in self.evals_recon:
meter.reset()
self.eval_d_right.reset()
self.eval_total.reset()
self.encoder.eval()
self.decoder.eval()
self.discriminator.eval()
n_batches = int(np.ceil(self.args.epoch_len / 10))
with tqdm(total=n_batches) as valid_enum, \
torch.no_grad():
for batch_num in range(n_batches):
if self.args.short and batch_num == 10:
break
if self.args.distributed:
assert self.args.rank < self.args.n_datasets, "No. of workers must be equal to #dataset"
dset_num = self.args.rank
else:
dset_num = batch_num % self.args.n_datasets
x, x_aug = next(self.data[dset_num].valid_iter)
x = wrap(x)
x_aug = wrap(x_aug)
batch_loss = self.eval_batch(x, x_aug, dset_num)
valid_enum.set_description(
f'Test (loss: {batch_loss:.2f}) epoch {epoch}')
valid_enum.update()
@staticmethod
def format_losses(meters):
losses = [meter.summarize_epoch() for meter in meters]
return ', '.join('{:.4f}'.format(x) for x in losses)
def train_losses(self):
meters = [*self.losses_recon, self.loss_d_right]
return self.format_losses(meters)
def eval_losses(self):
meters = [*self.evals_recon, self.eval_d_right]
return self.format_losses(meters)
def train(self):
best_eval = float('inf')
# Begin!
for epoch in range(self.start_epoch,
self.start_epoch + self.args.epochs):
self.logger.info(
f'Starting epoch, Rank {self.args.rank}, Dataset: {self.args.data[self.args.rank]}'
)
self.train_epoch(epoch)
self.evaluate_epoch(epoch)
self.logger.info(
f'Epoch %s Rank {self.args.rank} - Train loss: (%s), Test loss (%s)',
epoch, self.train_losses(), self.eval_losses())
self.lr_manager.step()
val_loss = self.eval_total.summarize_epoch()
if val_loss < best_eval:
self.save_model(f'bestmodel_{self.args.rank}.pth')
best_eval = val_loss
if not self.args.per_epoch:
self.save_model(f'lastmodel_{self.args.rank}.pth')
else:
self.save_model(f'lastmodel_{epoch}_rank_{self.args.rank}.pth')
if self.args.is_master:
torch.save([self.args, epoch], '%s/args.pth' % self.expPath)
self.logger.debug('Ended epoch')
def save_model(self, filename):
save_path = self.expPath / filename
torch.save(
{
'encoder_state': self.encoder.module.state_dict(),
'decoder_state': self.decoder.module.state_dict(),
'discriminator_state': self.discriminator.module.state_dict(),
'model_optimizer_state': self.model_optimizer.state_dict(),
'dataset': self.args.rank,
'd_optimizer_state': self.d_optimizer.state_dict()
}, save_path)
self.logger.debug(f'Saved model to {save_path}')
def train(self):
if self.verbose:
n_correct = 0
n_total = 0
for batch in self.val_loader:
exists_target = batch['exists_target']
n_correct += exists_target.sum().item()
n_total += len(exists_target)
print(f'Val Oracle acc: {n_correct / n_total * 100:.2f}%')
n_correct = 0
n_total = 0
for batch in self.test_loader:
exists_target = batch['exists_target']
n_correct += exists_target.sum().item()
n_total += len(exists_target)
print(f'Test Oracle acc: {n_correct / n_total * 100:.2f}%')
if self.verbose:
loss_meter = LossMeter()
best_valid_acc = 0.
best_epoch = 0
if 't5' in self.args.backbone:
project_name = "VLT5_RefCOCOg"
elif 'bart' in self.args.backbone:
project_name = "VLBart_RefCOCOg"
if self.args.RefCOCO_GT:
project_name += '_GT'
wandb.init(project=project_name)
wandb.run.name = self.args.run_name
wandb.config.update(self.args)
wandb.watch(self.model)
src_dir = Path(__file__).resolve().parent
base_path = str(src_dir.parent)
src_dir = str(src_dir)
wandb.save(os.path.join(src_dir + "/*.py"), base_path=base_path)
if self.args.distributed:
dist.barrier()
global_step = 0
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
self.model.train()
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=120)
epoch_results = {
'loss': 0,
}
n_correct = 0
n_total = 0
for step_i, batch in enumerate(self.train_loader):
batch['log_train_accuracy'] = self.args.log_train_accuracy
if self.args.fp16 and _use_native_amp:
with autocast():
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
else:
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
loss = results['loss']
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
loss = loss.detach()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(
amp.master_params(self.optim),
self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
for param in self.model.parameters():
param.grad = None
global_step += 1
for k, v in results.items():
if k in epoch_results:
epoch_results[k] += v.item()
if self.lr_scheduler:
if version.parse(
torch.__version__) >= version.parse("1.4"):
lr = self.lr_scheduler.get_last_lr()[0]
else:
lr = self.lr_scheduler.get_lr()[0]
else:
try:
lr = self.optim.get_lr()[0]
except AttributeError:
lr = self.args.lr
if self.args.log_train_accuracy:
correct = results['correct']
n_correct += sum(correct)
n_total += len(correct)
if self.verbose:
loss_meter.update(loss.item())
# acc_meter.update(results['acc'].item())
desc_str = f'Epoch {epoch} | LR {lr:.6f} | '
desc_str += f'Loss {loss_meter.val:.3f} |'
# desc_str += f' Acc {acc_meter.val:.3f} |'
if self.args.log_train_accuracy:
desc_str += f' Correct {n_correct:.0f}'
desc_str += f' (Acc {n_correct/n_total*100:.1f}%)'
pbar.set_description(desc_str)
pbar.update(1)
if self.args.distributed:
dist.barrier()
if self.verbose:
pbar.close()
if self.args.log_train_accuracy:
train_score_dict = {'n_correct': n_correct, 'n_total': n_total}
train_score_dict = reduce_dict(train_score_dict, self.args.gpu)
# Validation
# valid_score_dict = self.evaluate(self.val_loader)
# valid_score_dict = reduce_dict(valid_score_dict, self.args.gpu)
if self.verbose:
if self.args.log_train_accuracy:
train_acc = train_score_dict[
'n_correct'] / train_score_dict['n_total'] * 100
train_n_correct = int(train_score_dict['n_correct'])
train_n_total = int(train_score_dict['n_total'])
# Validation
valid_score_dict = self.evaluate(self.val_loader)
valid_acc = valid_score_dict['n_correct'] / valid_score_dict[
'n_total'] * 100
valid_n_correct = int(valid_score_dict['n_correct'])
valid_n_total = int(valid_score_dict['n_total'])
if valid_acc > best_valid_acc:
best_valid_acc = valid_acc
best_epoch = epoch
self.save("BEST")
log_str = ''
if self.args.log_train_accuracy:
log_str += f"\nEpoch {epoch}: Train"
log_str += f" Acc {train_acc:.2f}% |"
log_str += f" # correct {train_n_correct} # total {train_n_total}"
log_str += f"\nEpoch {epoch}: Valid"
log_str += f" Acc {valid_acc:.2f}% |"
log_str += f" # correct {valid_n_correct} # total {valid_n_total}"
log_str += f"\nEpoch {best_epoch}: Best Acc {best_valid_acc:.2f}%\n"
wandb_log_dict = {}
if self.args.log_train_accuracy:
wandb_log_dict['Train/Acc'] = train_acc
wandb_log_dict['Valid/Acc'] = valid_acc
wandb.log(wandb_log_dict, step=epoch)
print(log_str)
if self.args.distributed:
dist.barrier()
if self.verbose:
self.save("LAST")
# Test Set
best_path = os.path.join(self.args.output, 'BEST')
self.load(best_path)
test_score_dict = self.evaluate(self.test_loader)
test_acc = test_score_dict['n_correct'] / test_score_dict[
'n_total'] * 100
test_n_correct = int(test_score_dict['n_correct'])
test_n_total = int(test_score_dict['n_total'])
wandb_log_dict = {}
wandb_log_dict['Test/Acc'] = test_acc
wandb.log(wandb_log_dict, step=epoch)
log_str = ''
log_str += f"\nTest Acc {test_acc:.2f}%"
log_str += f"\nTest # correct {test_n_correct} # total {test_n_total}"
print(log_str)
wandb.log({'finished': True})
if self.args.distributed:
dist.barrier()
def train(self):
if self.verbose:
loss_meter = LossMeter()
best_valid = 0.
best_epoch = 0
if 't5' in self.args.backbone:
if self.args.use_vision:
project_name = "VLT5_GQA"
else:
project_name = "T5_GQA"
elif 'bart' in self.args.backbone:
if self.args.use_vision:
project_name = "VLBart_GQA"
else:
project_name = "Bart_GQA"
wandb.init(project=project_name)
wandb.run.name = self.args.run_name
wandb.config.update(self.args)
wandb.watch(self.model)
src_dir = Path(__file__).resolve().parent
base_path = str(src_dir.parent)
src_dir = str(src_dir)
wandb.save(os.path.join(src_dir + "/*.py"), base_path=base_path)
if self.args.distributed:
dist.barrier()
# torch.autograd.set_detect_anomaly(True)
# print(f'GPU{self.args.gpu} before training starts')
global_step = 0
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
self.model.train()
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=120)
epoch_results = {
'loss': 0.,
}
quesid2ans = {}
train_acc = 0.
train_acc_steps = int(len(self.train_loader) * 0.05)
last_acc_step = 0
# print(f'GPU{self.args.gpu} before training loop')
for step_i, batch in enumerate(self.train_loader):
# print(f'GPU{self.args.gpu} inside training loop')
# print(batch)
# self.optim.zero_grad()
if self.args.fp16 and _use_native_amp:
with autocast():
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
else:
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
loss = results['loss']
# print(f'GPU{self.args.gpu} after loss')
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
# print(f'GPU{self.args.gpu} after backward')
loss = loss.detach()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(
amp.master_params(self.optim),
self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
# self.model.zero_grad()
for param in self.model.parameters():
param.grad = None
global_step += 1
for k, v in results.items():
if k in epoch_results:
epoch_results[k] += v.item()
if self.lr_scheduler:
if version.parse(
torch.__version__) >= version.parse("1.4"):
lr = self.lr_scheduler.get_last_lr()[0]
else:
lr = self.lr_scheduler.get_lr()[0]
else:
try:
lr = self.optim.get_lr()[0]
except AttributeError:
lr = self.args.lr
if self.verbose:
loss_meter.update(loss.item())
desc_str = f'Epoch {epoch} | LR {lr:.6f}'
desc_str += f' | Loss {loss_meter.val:4f}'
pbar.set_description(desc_str)
pbar.update(1)
if self.args.distributed:
dist.barrier()
if self.verbose:
pbar.close()
log_str = ''
# Validation
valid_score = self.evaluate(self.val_loader) * 100.
if valid_score > best_valid:
best_valid = valid_score
best_epoch = epoch
self.save("BEST")
log_str += "\nEpoch %d: Testdev %0.2f" % (epoch, valid_score)
log_str += "\nEpoch %d: Best %0.2f\n" % (best_epoch,
best_valid)
wandb_log_dict = {}
wandb_log_dict['Train/Loss'] = epoch_results['loss'] / len(
self.train_loader)
wandb_log_dict['Testdev/score'] = valid_score
wandb.log(wandb_log_dict, step=epoch)
print(log_str)
if self.args.distributed:
dist.barrier()
if self.verbose:
self.save("LAST")
# Test Set
best_path = os.path.join(self.args.output, 'BEST')
self.load(best_path)
dump_path = os.path.join(self.args.output, 'submit.json')
self.predict(self.test_loader, dump_path=dump_path)
wandb.save(dump_path, base_path=self.args.output)
wandb.log({'finished': True})
if self.args.distributed:
dist.barrier()
exit()
def train(self):
if self.verbose:
loss_meter = LossMeter()
qa_loss_meter = LossMeter()
qar_loss_meter = LossMeter()
best_valid_Q_AR = 0.
best_epoch = 0
if 't5' in self.args.backbone:
if self.args.use_vision:
project_name = "VLT5_VCR"
else:
project_name = "T5_VCR"
elif 'bart' in self.args.backbone:
if self.args.use_vision:
project_name = "VLBart_VCR"
else:
project_name = "Bart_VCR"
wandb.init(project=project_name)
wandb.run.name = self.args.run_name
wandb.config.update(self.args)
wandb.watch(self.model)
src_dir = Path(__file__).resolve().parent
base_path = str(src_dir.parent)
src_dir = str(src_dir)
wandb.save(os.path.join(src_dir + "/*.py"), base_path=base_path)
if self.args.distributed:
dist.barrier()
global_step = 0
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
self.model.train()
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=200)
epoch_results = {
'loss': 0,
}
Q_A_results = 0
QA_R_results = 0
Q_AR_results = 0
n_total = 0
n_accu = 0
train_loss = 0
train_qa_loss = 0
train_qar_loss = 0
for step_i, batch in enumerate(self.train_loader):
batch['log_train_accuracy'] = self.args.log_train_accuracy
if self.args.fp16 and _use_native_amp:
with autocast():
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
else:
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
loss = results['loss']
if self.args.gradient_accumulation_steps > 1:
loss /= self.args.gradient_accumulation_steps
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(
amp.master_params(self.optim),
self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
update = True
if self.args.gradient_accumulation_steps > 1:
# if step_i == 0:
# update = False
# elif step_i % self.args.gradient_accumulation_steps == 0 or step_i == len(self.train_loader) - 1:
# update = True
# else:
# update = False
update = ((step_i + 1) %
self.args.gradient_accumulation_steps
== 0) or (step_i == len(self.train_loader) - 1)
n_accu += 1
if update:
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
# self.model.zero_grad()
for param in self.model.parameters():
param.grad = None
global_step += 1
for k, v in results.items():
if k in epoch_results:
epoch_results[k] += v.item()
if self.lr_scheduler:
if version.parse(
torch.__version__) >= version.parse("1.4"):
lr = self.lr_scheduler.get_last_lr()[0]
else:
lr = self.lr_scheduler.get_lr()[0]
else:
try:
lr = self.optim.get_lr()[0]
except AttributeError:
lr = self.args.lr
if self.verbose:
train_loss += loss.detach().item()
train_qa_loss += results['qa_loss'].item(
) / self.args.gradient_accumulation_steps
train_qar_loss += results['qar_loss'].item(
) / self.args.gradient_accumulation_steps
if self.args.log_train_accuracy:
qa_pred = results['qa_pred']
qar_pred = results['qar_pred']
a_labels = batch['answer_labels']
r_labels = batch['rationale_labels']
Q_A_correct = a_labels == qa_pred
QA_R_correct = r_labels == qar_pred
Q_AR_correct = Q_A_correct & QA_R_correct
Q_A_results += sum(Q_A_correct)
QA_R_results += sum(QA_R_correct)
Q_AR_results += sum(Q_AR_correct)
n_total += len(qa_pred)
if update:
if self.args.gradient_accumulation_steps > 1:
train_loss *= self.args.gradient_accumulation_steps / n_accu
train_qa_loss *= self.args.gradient_accumulation_steps / n_accu
train_qar_loss *= self.args.gradient_accumulation_steps / n_accu
loss_meter.update(train_loss)
qa_loss_meter.update(train_qa_loss)
qar_loss_meter.update(train_qar_loss)
desc_str = f'Epoch {epoch} | LR {lr:.6f} | Steps {global_step} |'
desc_str += f' Loss {loss_meter.val:.3f} |'
desc_str += f' QA Loss {qa_loss_meter.val:.3f} |'
desc_str += f' QAR Loss {qar_loss_meter.val:.3f} |'
train_loss = 0
train_qa_loss = 0
train_qar_loss = 0
n_accu = 0
if self.args.log_train_accuracy:
desc_str += f' Q -> A {Q_A_results} ({Q_A_results/n_total*100:.1f}%)'
desc_str += f' QA -> R {QA_R_results} ({QA_R_results/n_total*100:.1f}%)'
desc_str += f' Q -> AR {Q_AR_results} ({Q_AR_results/n_total*100:.1f}%)'
pbar.set_description(desc_str)
pbar.update(1)
if self.verbose:
pbar.close()
if self.args.log_train_accuracy:
train_score_dict = {
'Q_A': Q_A_results,
'QA_R': QA_R_results,
'Q_AR': Q_AR_results,
'n_total': n_total
}
train_score_dict = reduce_dict(train_score_dict, self.args.gpu)
# Validation
valid_score_dict = self.evaluate_val(self.val_loader)
if self.verbose:
if self.args.log_train_accuracy:
train_Q_A = train_score_dict['Q_A'] / train_score_dict[
'n_total'] * 100
train_QA_R = train_score_dict['QA_R'] / train_score_dict[
'n_total'] * 100
train_Q_AR = train_score_dict['Q_AR'] / train_score_dict[
'n_total'] * 100
train_n_total = int(train_score_dict['n_total'])
valid_Q_A = valid_score_dict['Q_A'] / valid_score_dict[
'n_total'] * 100
valid_QA_R = valid_score_dict['QA_R'] / valid_score_dict[
'n_total'] * 100
valid_Q_AR = valid_score_dict['Q_AR'] / valid_score_dict[
'n_total'] * 100
valid_n_total = int(valid_score_dict['n_total'])
if valid_Q_AR > best_valid_Q_AR:
best_valid_Q_AR = valid_Q_AR
best_epoch = epoch
self.save("BEST")
log_str = ''
if self.args.log_train_accuracy:
log_str += f"\nEpoch {epoch}: Train |"
log_str += f" # examples: {train_n_total} |"
log_str += f" Q -> A {train_Q_A:.2f}%"
log_str += f" QA -> R {train_QA_R:.2f}%"
log_str += f" Q -> AR {train_Q_AR:.2f}%"
log_str += f"\nEpoch {epoch}: Valid |"
log_str += f" # examples: {valid_n_total} |"
log_str += f" Q -> A {valid_Q_A:.2f}%"
log_str += f" QA -> R {valid_QA_R:.2f}%"
log_str += f" Q -> AR {valid_Q_AR:.2f}%"
#log_str += "\nEpoch %d: Valid Q -> AR %0.2f" % (epoch, valid_Q_AR)
log_str += f"\nBest Epoch {best_epoch}: Q -> AR {best_valid_Q_AR:.2f}%\n"
wandb_log_dict = {}
# wandb_log_dict['Train/Loss'] = loss_meter.val
if self.args.log_train_accuracy:
wandb_log_dict['Train/Q_A'] = train_Q_A
wandb_log_dict['Train/QA_R'] = train_QA_R
wandb_log_dict['Train/Q_AR'] = train_Q_AR
wandb_log_dict['Valid/Q_A'] = valid_Q_A
wandb_log_dict['Valid/QA_R'] = valid_QA_R
wandb_log_dict['Valid/Q_AR'] = valid_Q_AR
wandb.log(wandb_log_dict, step=epoch)
print(log_str)
if self.args.distributed:
dist.barrier()
if self.verbose:
self.save("LAST")
# Test Set
best_path = os.path.join(self.args.output, 'BEST')
self.load(best_path)
if self.verbose:
dump_path = os.path.join(self.args.output, 'test_submit.csv')
print('Dumping test set results at', dump_path)
self.evaluate_test(self.test_loader, dump_path=dump_path)
wandb.save(dump_path, base_path=self.args.output)
print('Done!')
wandb.log({'finished': True})
if self.args.distributed:
dist.barrier()
exit()
def train(self):
if self.verbose:
loss_meter = LossMeter()
best_valid = 0.
from torch.utils.tensorboard import SummaryWriter
self.writer = SummaryWriter(log_dir=self.args.log_dir)
hparam_dict = {}
for k, v in self.args.__dict__.items():
if type(v) in [int, float, str, bool, torch.Tensor]:
hparam_dict[k] = v
metric_dict = {}
self.writer.add_hparams(hparam_dict, metric_dict)
if self.args.distributed:
dist.barrier()
self.optim.zero_grad()
for epoch in range(self.args.epochs):
self.model.train()
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=150)
results = np.zeros(4, dtype=int)
quesid2ans = {}
for step_i, batch in enumerate(self.train_loader):
vis_feats = batch['vis_feats'].cuda()
boxes = batch['boxes'].cuda()
ques_id = batch['question_ids']
B = len(ques_id)
input_ids = batch['word_ids'].cuda()
input_ids = input_ids.unsqueeze(1).repeat(1, 2,
1).view(B * 2, -1)
label = batch['labels'].cuda()
results = self.model(
input_ids=input_ids,
visual_feats=vis_feats,
visual_pos=boxes,
attention_mask=input_ids > 0,
)
logit = results['logit']
loss = self.mce_loss(logit, label)
loss.backward()
update = True
if self.args.update_freq > 1:
if step_i == 0:
update = False
elif step_i % self.args.update_freq == 0 or step_i == len(
self.train_loader) - 1:
update = True
else:
update = False
if update:
if not self.args.no_clip_grad:
nn.utils.clip_grad_norm_(self.model.parameters(),
self.args.clip_grad_norm)
self.optim.step()
self.lr_scheduler.step()
for param in self.model.parameters():
param.grad = None
try:
lr = self.scheduler.get_last_lr()[0]
except AttributeError:
lr = self.args.lr
if self.verbose:
loss_meter.update(loss.item())
desc_str = f'Epoch {epoch} | LR {lr:.6f} | '
desc_str += f'Loss {loss_meter.val:4f} |'
score, predict = logit.max(1)
predict = predict.cpu().numpy()
label = label.cpu().numpy()
for qid, pred in zip(ques_id, predict):
quesid2ans[qid] = pred
results[0] += sum((label == 1) & (predict == 1))
results[1] += sum((label == 1) & (predict == 0))
results[2] += sum((label == 0) & (predict == 1))
results[3] += sum((label == 0) & (predict == 0))
n_total = sum(results)
desc_str += f' TP {results[0]} ({results[0]/n_total*100:.1f}%)'
desc_str += f' FN {results[1]} ({results[1]/n_total*100:.1f}%)'
desc_str += f' FP {results[2]} ({results[2]/n_total*100:.1f}%)'
desc_str += f' TN {results[3]} ({results[3]/n_total*100:.1f}%)'
pbar.set_description(desc_str)
pbar.update(1)
if self.args.distributed:
dist.barrier()
if self.verbose:
pbar.close()
score = self.train_loader.evaluator.evaluate(quesid2ans) * 100.
log_str = "\nEpoch %d: Train %0.2f" % (epoch, score)
if not self.args.dry:
self.writer.add_scalar(f'NLVR/Train/score', score, epoch)
# Validation
valid_score = self.evaluate(self.val_loader) * 100.
if valid_score > best_valid:
best_valid = valid_score
self.save("BEST")
log_str += "\nEpoch %d: Valid %0.2f" % (epoch, valid_score)
log_str += "\nEpoch %d: Best %0.2f\n" % (epoch, best_valid)
if not self.args.dry:
self.writer.add_scalar(f'NLVR/Valid/score', valid_score,
epoch)
print(log_str)
self.logger.info(log_str)
if self.args.distributed:
dist.barrier()
if self.verbose:
self.save("LAST")
def train(self):
if self.verbose:
loss_meter = LossMeter()
# best_eval_loss = 9595.
quesid2ans = {}
best_valid = 0.
best_epoch = 0
if 't5' in self.args.backbone:
project_name = "VLT5_NLVR"
elif 'bart' in self.args.backbone:
project_name = "VLBART_NLVR"
wandb.init(project=project_name)
wandb.run.name = self.args.run_name
wandb.config.update(self.args)
wandb.watch(self.model)
src_dir = Path(__file__).resolve().parent
base_path = str(src_dir.parent)
src_dir = str(src_dir)
wandb.save(os.path.join(src_dir + "/*.py"), base_path=base_path)
if self.args.distributed:
dist.barrier()
global_step = 0
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
self.model.train()
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=150)
nlvr_results = np.zeros(4, dtype=int)
epoch_results = {
'loss': 0,
}
quesid2ans = {}
train_acc = 0.
train_acc_steps = int(len(self.train_loader) * 0.05)
last_acc_step = 0
for step_i, batch in enumerate(self.train_loader):
self.optim.zero_grad()
if self.args.fp16 and _use_native_amp:
with autocast():
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
else:
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
loss = results['loss']
# print(f'GPU{self.args.gpu} after loss')
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
# print(f'GPU{self.args.gpu} after backward')
loss = loss.detach()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(amp.master_params(
self.optim), self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
# self.model.zero_grad()
for param in self.model.parameters():
param.grad = None
global_step += 1
for k, v in results.items():
if k in epoch_results:
epoch_results[k] += v.item()
if self.lr_scheduler:
if version.parse(torch.__version__) >= version.parse("1.4"):
lr = self.lr_scheduler.get_last_lr()[0]
else:
lr = self.lr_scheduler.get_lr()[0]
else:
try:
lr = self.optim.get_lr()[0]
except AttributeError:
lr = self.args.lr
if self.verbose:
loss_meter.update(loss.item())
desc_str = f'Epoch {epoch} | LR {lr:.6f} | '
desc_str += f'Loss {loss_meter.val:4f} |'
pred_ans = results['pred_ans_id']
ques_ids = batch['question_ids']
for qid, ans in zip(ques_ids, pred_ans):
quesid2ans[qid] = ans
label = batch['labels'].cpu().numpy()
predict = results['pred_ans_id']
nlvr_results[0] += sum((label == 1) & (predict == 1))
nlvr_results[1] += sum((label == 1) & (predict == 0))
nlvr_results[2] += sum((label == 0) & (predict == 1))
nlvr_results[3] += sum((label == 0) & (predict == 0))
n_total = sum(nlvr_results)
desc_str += f' TP {nlvr_results[0]} ({nlvr_results[0]/n_total*100:.1f}%)'
desc_str += f' FN {nlvr_results[1]} ({nlvr_results[1]/n_total*100:.1f}%)'
desc_str += f' FP {nlvr_results[2]} ({nlvr_results[2]/n_total*100:.1f}%)'
desc_str += f' TN {nlvr_results[3]} ({nlvr_results[3]/n_total*100:.1f}%)'
pbar.set_description(desc_str)
pbar.update(1)
if self.args.distributed:
dist.barrier()
if self.verbose:
pbar.close()
log_str = ''
# train_score_dict = self.train_loader.evaluator.evaluate(quesid2ans)
# train_acc = train_score_dict['accuracy'] * 100.
# train_cons = train_score_dict['consistency'] * 100.
train_acc = self.train_loader.evaluator.evaluate_train(quesid2ans) * 100.
train_score = train_acc
log_str += "\nEpoch %d: Train %0.2f" % (epoch, train_score)
# Validation
valid_score_dict = self.evaluate(self.val_loader)
valid_acc = valid_score_dict['accuracy'] * 100.
# valid_cons = valid_score_dict['consistency'] * 100.
valid_score = valid_acc
if valid_score > best_valid:
best_valid = valid_score
best_epoch = epoch
self.save("BEST")
log_str += "\nEpoch %d: Valid %0.2f" % (epoch, valid_score)
log_str += "\nEpoch %d: Best %0.2f\n" % (best_epoch, best_valid)
wandb_log_dict = {}
# wandb_log_dict['Train/Loss'] = loss_meter.val
# wandb_log_dict['Train/score'] = score
# wandb_log_dict['Valid/score'] = valid_score
# for score_name, score in train_score_dict.items():
# wandb_log_dict[f'Train/{score_name}'] = score * 100.
wandb_log_dict['Train/accuracy'] = train_acc
for score_name, score in valid_score_dict.items():
wandb_log_dict[f'Valid/{score_name}'] = score * 100.
wandb.log(wandb_log_dict, step=epoch)
print(log_str)
if self.args.distributed:
dist.barrier()
if self.verbose:
self.save("LAST")
# Test Set
best_path = os.path.join(self.args.output, 'BEST')
self.load(best_path)
log_str = 'Test set results\n'
dump_path = os.path.join(self.args.output, 'submit.csv')
test_score_dict = self.evaluate(self.test_loader, dump_path=dump_path)
wandb.save(dump_path, base_path=self.args.output)
wandb_log_dict = {}
for score_name, score in test_score_dict.items():
wandb_log_dict[f'Test/{score_name}'] = score * 100.
wandb.log(wandb_log_dict, step=epoch)
from pprint import pformat
log_str += pformat(test_score_dict)
print(log_str)
wandb.log({'finished': True})
def train(self):
if self.verbose:
vqa_loss_meter = LossMeter()
refcoco_loss_meter = LossMeter()
# best_eval_loss = 9595.
quesid2ans = {}
best_vqa_valid = 0.
best_vqa_epoch = 0
# gqa
best_gqa_valid = 0
best_gqa_epoch = 0
# nlvr
best_nlvr_valid = 0
best_nlvr_epoch = 0
# vcr
best_valid_Q_AR = 0
best_vcr_epoch = 0
# refcoco
best_refcoco_valid = 0
best_refcoco_epoch = 0
# caption
best_caption_valid = 0
best_caption_epoch = 0
# mmt
best_mmt_valid = 0
best_mmt_epoch = 0
assert 't5' in self.args.backbone
self.setup_wandb()
if self.args.distributed:
dist.barrier()
global_step = 0
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
self.model.train()
if self.args.distributed:
self.train_loader.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=250)
epoch_results = {
'loss': 0.,
}
task_counter = {
'vqa': 0,
'gqa': 0,
'nlvr': 0,
'refcoco': 0,
'vcr': 0,
'caption': 0,
'mmt': 0,
}
# vqa
quesid2ans = {}
train_acc = 0.
# train_acc_steps = int(len(self.train_loader) * 0.05)
# last_acc_step = 0
# refcoco
n_correct = 0
n_total = 0
for step_i, batch in enumerate(self.train_loader):
# print(f'GPU{self.args.gpu} inside training loop')
# print(batch)
task = batch['task']
# if self.verbose:
# print('task', task)
task_counter[task] += 1
batch['log_train_accuracy'] = self.args.log_train_accuracy
# self.optim.zero_grad()
if self.args.fp16 and _use_native_amp:
with autocast():
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
else:
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
loss = results['loss']
# print(f'GPU{self.args.gpu} after loss')
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
# print(f'GPU{self.args.gpu} after backward')
loss = loss.detach()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(
amp.master_params(self.optim),
self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
for param in self.model.parameters():
param.grad = None
global_step += 1
for k, v in results.items():
if k in epoch_results:
epoch_results[k] += v.item()
if self.lr_scheduler:
if version.parse(
torch.__version__) >= version.parse("1.4"):
lr = self.lr_scheduler.get_last_lr()[0]
else:
lr = self.lr_scheduler.get_lr()[0]
else:
try:
lr = self.optim.get_lr()[0]
except AttributeError:
lr = self.args.lr
# self.train_step_post_hook(result)
if self.args.log_train_accuracy and task == 'refcoco':
correct = results['correct']
n_correct += sum(correct)
n_total += len(correct)
if self.verbose:
if task == 'vqa':
vqa_loss_meter.update(loss.item())
elif task == 'refcoco':
refcoco_loss_meter.update(loss.item())
desc_str = f'Epoch {epoch} | LR {lr:.6f}'
desc_str += f" |"
if 'vqa' in self.args.tasks:
desc_str += f" VQA {task_counter['vqa']}"
if 'gqa' in self.args.tasks:
desc_str += f" GQA {task_counter['gqa']}"
if 'nlvr' in self.args.tasks:
desc_str += f" NLVR {task_counter['nlvr']}"
if 'vcr' in self.args.tasks:
desc_str += f" VCR {task_counter['vcr']}"
if 'refcoco' in self.args.tasks:
desc_str += f" RefCOCOg {task_counter['refcoco']}"
if 'caption' in self.args.tasks:
desc_str += f" COCO {task_counter['caption']}"
if 'mmt' in self.args.tasks:
desc_str += f" MMT {task_counter['mmt']}"
if len(vqa_loss_meter) > 0:
desc_str += f' | VQA Loss {vqa_loss_meter.val:4f}'
if len(refcoco_loss_meter) > 0:
desc_str += f' | RefCOCOg Loss {refcoco_loss_meter.val:.3f}'
if self.args.log_train_accuracy and n_total > 0:
desc_str += f' | RefCOCOg Acc'
desc_str += f' Correct {n_correct:.0f}'
desc_str += f' (Acc {n_correct/n_total*100:.1f}%)'
pbar.set_description(desc_str)
pbar.update(1)
if self.args.distributed:
dist.barrier()
if self.verbose:
pbar.close()
self.save("Epoch%02d" % (epoch + 1))
if self.args.log_train_accuracy:
train_score_dict = {'n_correct': n_correct, 'n_total': n_total}
train_score_dict = reduce_dict(train_score_dict, self.args.gpu)
if self.verbose:
# Validation
log_str = ''
wandb_log_dict = {}
if 'vqa' in self.args.tasks:
# VQA
vqa_val_loader = self.val_loader['vqa']
score_dict = self.vqa_evaluate(vqa_val_loader)
valid_score = score_dict['topk_score'] * 100.
valid_score_raw = score_dict['overall']
if valid_score_raw > best_vqa_valid or epoch == 0:
best_vqa_valid = valid_score_raw
best_vqa_epoch = epoch
# self.save("VQA_BEST")
log_str += f"VQA"
log_str += "\nEpoch %d: Valid Raw %0.2f Topk %0.2f" % (
epoch, valid_score_raw, valid_score)
log_str += "\nEpoch %d: Best Raw %0.2f\n" % (
best_vqa_epoch, best_vqa_valid)
wandb_log_dict['VQA/Valid/score'] = valid_score
wandb_log_dict['VQA/Valid/raw_score'] = score_dict[
'overall']
if 'gqa' in self.args.tasks:
# GQA
gqa_val_loader = self.val_loader['gqa']
valid_score = self.gqa_evaluate(gqa_val_loader) * 100
if valid_score > best_gqa_valid or epoch == 0:
best_gqa_valid = valid_score
best_gqa_epoch = epoch
wandb_log_dict['GQA/Valid/Acc'] = valid_score
log_str += f"GQA"
log_str += "\nEpoch %d: Valid %0.2f" % (epoch, valid_score)
log_str += "\nEpoch %d: Best %0.2f\n" % (best_gqa_epoch,
best_gqa_valid)
if 'nlvr' in self.args.tasks:
# NLVR
nlvr_val_loader = self.val_loader['nlvr']
valid_score_dict = self.nlvr_evaluate(nlvr_val_loader)
valid_acc = valid_score_dict['accuracy'] * 100.
if valid_acc > best_nlvr_valid or epoch == 0:
best_nlvr_valid = valid_acc
best_nlvr_epoch = epoch
wandb_log_dict['NLVR/Valid/Acc'] = valid_acc
log_str += f"NLVR"
log_str += "\nEpoch %d: Valid %0.2f" % (epoch, valid_acc)
log_str += "\nEpoch %d: Best %0.2f\n" % (best_nlvr_epoch,
best_nlvr_valid)
if 'vcr' in self.args.tasks:
# VCR
vcr_val_loader = self.val_loader['vcr']
valid_score_dict = self.vcr_evaluate(vcr_val_loader)
valid_Q_A = valid_score_dict['Q_A'] / valid_score_dict[
'n_total'] * 100
valid_QA_R = valid_score_dict['QA_R'] / valid_score_dict[
'n_total'] * 100
valid_Q_AR = valid_score_dict['Q_AR'] / valid_score_dict[
'n_total'] * 100
valid_n_total = int(valid_score_dict['n_total'])
if valid_Q_AR > best_valid_Q_AR or epoch == 0:
best_valid_Q_AR = valid_Q_AR
best_vcr_epoch = epoch
wandb_log_dict['VCR/Valid/Q_A'] = valid_Q_A
wandb_log_dict['VCR/Valid/QA_R'] = valid_QA_R
wandb_log_dict['VCR/Valid/Q_AR'] = valid_Q_AR
log_str += f"VCR"
log_str += "\nEpoch %d: Valid %0.2f" % (epoch, valid_Q_AR)
log_str += "\nEpoch %d: Best %0.2f\n" % (best_vcr_epoch,
best_valid_Q_AR)
if 'refcoco' in self.args.tasks:
# RefCOCO
refcoco_val_loader = self.val_loader['refcoco']
if self.args.log_train_accuracy:
train_acc = train_score_dict[
'n_correct'] / train_score_dict['n_total'] * 100
train_n_correct = int(train_score_dict['n_correct'])
train_n_total = int(train_score_dict['n_total'])
valid_score_dict = self.refcoco_evaluate(
refcoco_val_loader)
valid_acc = valid_score_dict[
'n_correct'] / valid_score_dict['n_total'] * 100
valid_n_correct = int(valid_score_dict['n_correct'])
valid_n_total = int(valid_score_dict['n_total'])
if valid_acc > best_refcoco_valid or epoch == 0:
best_refcoco_valid = valid_acc
best_refcoco_epoch = epoch
if self.args.log_train_accuracy:
wandb_log_dict['RefCOCO/Train/Acc'] = train_acc
wandb_log_dict['RefCOCO/Valid/Acc'] = valid_acc
log_str += f"RefCOCOg"
if self.args.log_train_accuracy:
log_str += f"\nEpoch {epoch}: Train"
log_str += f" Acc {train_acc:.2f}% |"
log_str += f" # correct {train_n_correct} # total {train_n_total}"
log_str += f"\nEpoch {epoch}: Valid"
log_str += f" Acc {valid_acc:.2f}% |"
log_str += f" # correct {valid_n_correct} # total {valid_n_total}"
log_str += f"\nEpoch {best_refcoco_epoch}: Best Acc {best_refcoco_valid:.2f}%\n"
if 'caption' in self.args.tasks:
# COCO Caption
caption_val_loader = self.val_loader['caption']
valid_results = self.caption_evaluate(caption_val_loader)
valid_score = valid_results['CIDEr'] * 100
if valid_score > best_caption_valid or epoch == 0:
best_caption_valid = valid_score
best_caption_epoch = epoch
for score_name, score in valid_results.items():
wandb_log_dict[
f'Caption/Valid/{score_name}'] = score * 100
log_str += f"COCO Caption"
log_str += "\nEpoch %d: Valid CIDEr %0.2f" % (epoch,
valid_score)
log_str += "\nEpoch %d: Best %0.2f\n" % (
best_caption_epoch, best_caption_valid)
if 'mmt' in self.args.tasks:
# MMT
mmt_val_loader = self.val_loader['mmt']
valid_results = self.mmt_evaluate(mmt_val_loader)
valid_score = valid_results['BLEU']
if valid_score > best_mmt_valid:
best_mmt_valid = valid_score
best_mmt_epoch = epoch
for score_name, score in valid_results.items():
wandb_log_dict[f'MMT/Valid/{score_name}'] = score
log_str += f"Multi30K En-De"
log_str += "\nEpoch %d: Valid BLEU %0.2f" % (epoch,
valid_score)
log_str += "\nEpoch %d: Best %0.2f\n" % (best_mmt_epoch,
best_mmt_valid)
wandb.log(wandb_log_dict, step=epoch)
print(log_str)
if self.args.distributed:
dist.barrier()
# Test Set
if self.verbose:
self.save("LAST")
log_str = ''
wandb_log_dict = {}
if 'vqa' in self.args.tasks:
# VQA
vqa_test_loader = self.test_loader['vqa']
evaluator = vqa_test_loader.evaluator
dump_path = os.path.join(self.args.output,
'karpathy_test_predict.json')
quesid2ans = self.vqa_predict(vqa_test_loader, dump_path)
wandb.save(dump_path, base_path=self.args.output)
acc_dict_all = evaluator.evaluate_raw(quesid2ans)
acc_dict_answerable = evaluator.evaluate_raw(
quesid2ans, is_topk_optimal=True)
acc_dict_unanswerable = evaluator.evaluate_raw(
quesid2ans, is_topk_optimal=False)
wandb_log_dict['VQA/Test/overall'] = acc_dict_all['overall']
wandb_log_dict['VQA/Test/topk_optimal'] = acc_dict_answerable[
'overall']
wandb_log_dict[
'VQA/Test/topk_not_optimal'] = acc_dict_unanswerable[
'overall']
vqa_submit_test_loader = self.test_loader['vqa_submit']
dump_path = os.path.join(self.args.output, 'vqa_submit.json')
self.vqa_predict(vqa_submit_test_loader, dump_path=dump_path)
wandb.save(dump_path, base_path=self.args.output)
if 'nlvr' in self.args.tasks:
# NLVR
nlvr_test_loader = self.test_loader['nlvr']
dump_path = os.path.join(self.args.output, 'nlvr_submit.csv')
test_score_dict = self.nlvr_evaluate(nlvr_test_loader,
dump_path=dump_path)
wandb.save(dump_path, base_path=self.args.output)
for score_name, score in test_score_dict.items():
wandb_log_dict[f'NLVR/Test/{score_name}'] = score * 100.
if 'refcoco' in self.args.tasks:
# RefCOCO
refcoco_test_loader = self.test_loader['refcoco']
test_score_dict = self.refcoco_evaluate(refcoco_test_loader)
test_acc = test_score_dict['n_correct'] / test_score_dict[
'n_total'] * 100
test_n_correct = int(test_score_dict['n_correct'])
test_n_total = int(test_score_dict['n_total'])
wandb_log_dict['RefCOCO/test/Acc'] = test_acc
log_str = 'RefCOCOg'
log_str += f"\nTest Acc {test_acc:.2f}%"
log_str += f"\nTest # correct {test_n_correct} # total {test_n_total}"
if 'caption' in self.args.tasks:
# COCO Caption
caption_test_loader = self.test_loader['caption']
test_results = self.caption_evaluate(caption_test_loader)
for score_name, score in test_results.items():
wandb_log_dict[f'Caption/Test/{score_name}'] = score
if 'mmt' in self.args.tasks:
# MMT
mmt_test2016_loader = self.test_loader['mmt_test2016']
mmt_test2017_loader = self.test_loader['mmt_test2017']
mmt_test2018_loader = self.test_loader['mmt_test2018']
for loader in [
mmt_test2016_loader, mmt_test2017_loader,
mmt_test2018_loader
]:
split = loader.dataset.source
dump_path = os.path.join(self.args.output,
f'submit_{split}_raw.txt')
test_results = self.mmt_evaluate(loader,
dump_path=dump_path)
for score_name, score in test_results.items():
wandb_log_dict[f'MMT/{split}/{score_name}'] = score
log_str += f'{split} set results\n'
log_str += pformat(test_results)
print(log_str)
wandb.log(wandb_log_dict, step=self.args.epochs)
wandb.log({'finished': True})
if self.args.distributed:
dist.barrier()
exit()
def train(self):
if self.verbose:
loss_meter = LossMeter()
best_valid = 0.
best_epoch = 0
if not self.wandb_initialized:
if 't5' in self.args.backbone:
project_name = "VLT5_COCOCaption"
elif 'bart' in self.args.backbone:
project_name = "VLBart_COCOCaption"
wandb.init(project=project_name)
wandb.run.name = self.args.run_name
wandb.config.update(self.args)
wandb.watch(self.model)
src_dir = Path(__file__).resolve().parent
base_path = str(src_dir.parent)
src_dir = str(src_dir)
wandb.save(os.path.join(src_dir + "/*.py"),
base_path=base_path)
self.wandb_initialized = True
if self.args.distributed:
dist.barrier()
global_step = 0
epochs = self.args.epochs
for epoch in range(epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
self.model.train()
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=120)
epoch_results = {
'loss': 0.,
}
for step_i, batch in enumerate(self.train_loader):
if self.args.fp16 and _use_native_amp:
with autocast():
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
else:
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
loss = results['loss']
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
loss = loss.detach()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(
amp.master_params(self.optim),
self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
update = True
if self.args.gradient_accumulation_steps > 1:
if step_i == 0:
update = False
elif step_i % self.args.gradient_accumulation_steps == 0 or step_i == len(
self.train_loader) - 1:
update = True
else:
update = False
if update:
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
# self.model.zero_grad()
for param in self.model.parameters():
param.grad = None
global_step += 1
for k, v in results.items():
if k in epoch_results:
epoch_results[k] += v.item()
if self.lr_scheduler:
if version.parse(
torch.__version__) >= version.parse("1.4"):
lr = self.lr_scheduler.get_last_lr()[0]
else:
lr = self.lr_scheduler.get_lr()[0]
else:
try:
lr = self.optim.get_lr()[0]
except AttributeError:
lr = self.args.lr
if self.verbose:
loss_meter.update(loss.item())
desc_str = f'Epoch {epoch} | LR {lr:.6f} | Steps {global_step}'
desc_str += f' | Loss {loss_meter.val:4f}'
pbar.set_description(desc_str)
pbar.update(1)
if self.args.distributed:
dist.barrier()
if self.verbose:
pbar.close()
# format ex)
# {'Bleu_1': 0.9999999997500004,
# 'Bleu_2': 0.5773502690332603,
# 'Bleu_3': 4.3679023223468616e-06,
# 'Bleu_4': 1.4287202142987477e-08,
# 'CIDEr': 3.333333333333333,
# 'METEOR': 0.43354749322305886,
# 'ROUGE_L': 0.75,
# 'SPICE': 0.6666666666666666}
# Validation
valid_results = self.evaluate(self.val_loader)
if self.verbose:
valid_score = valid_results['CIDEr']
if valid_score > best_valid or epoch == 0:
best_valid = valid_score
best_epoch = epoch
self.save("BEST")
log_str = ''
log_str += pformat(valid_results)
log_str += "\nEpoch %d: Valid CIDEr %0.4f" % (epoch,
valid_score)
log_str += "\nEpoch %d: Best CIDEr %0.4f\n" % (best_epoch,
best_valid)
wandb_log_dict = {}
wandb_log_dict['Train/Loss'] = epoch_results['loss'] / len(
self.train_loader)
for score_name, score in valid_results.items():
wandb_log_dict[f'Valid/{score_name}'] = score
wandb_log_dict[f'Valid/best_epoch'] = best_epoch
wandb.log(wandb_log_dict, step=epoch)
print(log_str)
if self.args.distributed:
dist.barrier()
if self.verbose:
self.save("LAST")
# Test Set
best_path = os.path.join(self.args.output, 'BEST')
self.load(best_path)
if self.verbose:
wandb.save(best_path, base_path=self.args.output)
print(f'\nUploaded checkpoint {best_epoch}', best_path)
test_results = self.evaluate(self.test_loader)
if self.verbose:
wandb_log_dict = {}
for score_name, score in test_results.items():
wandb_log_dict[f'Test/{score_name}'] = score
wandb.log(wandb_log_dict, step=epoch)
log_str = 'Test set results\n'
log_str += pformat(test_results)
print(log_str)
if self.args.distributed:
dist.barrier()
def train(self):
LOSSES_NAME = self.args.LOSSES_NAME
task_dict = {
'Mask_LM': 'word_mask',
'Matched': 'matched',
'Mask_Obj': 'vis_mask',
'Mask_Attr': 'vis_mask',
'Mask_Feat': 'vis_mask',
'QA': 'qa'
}
if self.args.dry:
results = self.evaluate_epoch(epoch=0)
self.optim.zero_grad()
if self.verbose:
loss_meters = [LossMeter() for _ in range(len(LOSSES_NAME))]
best_eval_loss = 9595.
from torch.utils.tensorboard import SummaryWriter
self.writer = SummaryWriter(log_dir=self.args.log_dir)
print('logging at', str(self.args.log_dir))
self.logger.info('logging at' + str(self.args.log_dir))
hparam_dict = {}
for k, v in self.args.__dict__.items():
if type(v) in [int, float, str, bool, torch.Tensor]:
hparam_dict[k] = v
metric_dict = {}
self.writer.add_hparams(hparam_dict, metric_dict)
dist.barrier()
n_update = 0
global_step = 0
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
# Train
self.model.train()
loss_counts = [0 for _ in range(len(LOSSES_NAME))]
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=240)
epoch_results = {
'lm_loss': 0,
'vis_loss': 0,
'matched_loss': 0,
'qa_loss': 0,
'obj_loss': 0,
'feat_loss': 0,
'attr_loss': 0,
}
for k in list(epoch_results.keys()):
if k[-4:] == 'loss':
epoch_results[f'{k}_count'] = 0
if self.args.task_qa:
uid2ans = {}
for step_i, batch in enumerate(self.train_loader):
# task = random.choice(self.args.MASK_MODALITY)
task_i = step_i % len(self.args.MASK_MODALITY)
task = self.args.MASK_MODALITY[task_i]
# with torch.autograd.set_detect_anomaly(True):
results = self.forward(batch, task)
if self.args.fp16 and _use_native_amp:
with autocast():
results = self.model(batch, task)
else:
results = self.model(batch, task)
if task == 'vis_mask':
if 'Mask_Obj' in LOSSES_NAME:
epoch_results['obj_loss_count'] += 1
if 'Mask_Feat' in LOSSES_NAME:
epoch_results['feat_loss_count'] += 1
if 'Mask_Attr' in LOSSES_NAME:
epoch_results['attr_loss_count'] += 1
epoch_results['vis_loss_count'] += 1
elif task == 'word_mask':
epoch_results['lm_loss_count'] += 1
elif task == 'matched':
epoch_results['matched_loss_count'] += 1
if self.args.task_qa:
epoch_results['qa_loss_count'] += 1
qa_pred = results['qa_pred']
for uid, ans_id in zip(batch['uid'],
qa_pred.cpu().numpy()):
ans = self.train_loader.dataset.answer_table.id2ans(
ans_id)
uid2ans[uid] = ans
loss = results['total_loss']
#===== Update =====#
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
loss = loss.detach()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(
amp.master_params(self.optim),
self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
for param in self.model.parameters():
param.grad = None
global_step += 1
#====================#
try:
lr = self.scheduler.get_last_lr()[0]
except AttributeError:
lr = self.args.lr
if self.verbose:
desc_str = f'Epoch {epoch} | LR {lr:.6f} | '
if self.args.word_mask_predict:
desc_str += f'Word Mask: Uniform (MP) | '
elif self.args.word_mask_rate > 0:
desc_str += f'Word Mask: {self.args.word_mask_rate:.2f} | '
if self.args.vis_mask_predict:
desc_str += f'Vis Mask: Uniform (MP) |'
else:
desc_str += f'Vis Mask: {self.args.obj_mask_rate:.2f} |'
if self.args.task_qa:
loss_meter = loss_meters[-1]
loss_meter.update(results['qa_loss'].item())
loss_counts[-1] += 1
for i, (loss_name, loss_meter) in enumerate(
zip(LOSSES_NAME, loss_meters)):
if task_dict[loss_name] == task:
if task == 'vis_mask':
if loss_name == 'Mask_Obj':
loss_meter.update(
results['obj_loss'].item())
elif loss_name == 'Mask_Attr':
loss_meter.update(
results['attr_loss'].item())
elif loss_name == 'Mask_Feat':
loss_meter.update(
results['feat_loss'].item())
elif task == 'word_mask':
loss_meter.update(results['lm_loss'].item())
elif task == 'matched':
loss_meter.update(
results['matched_loss'].item())
# elif task == 'qa':
# loss_meter.update(results['qa_loss'].item())
loss_counts[i] += 1
if len(loss_meter) > 0:
loss_count = loss_counts[i]
if loss_name in [
'Mask_LM', 'Matched', 'Mask_Obj',
'Mask_Attr', 'Mask_Feat', 'QA'
]:
desc_str += f' {loss_name} ({loss_count}) {loss_meter.val:.3f}'
else:
desc_str += f' {loss_name} {loss_meter.val:.3f}'
if step_i % 10 == 0:
self.writer.add_scalar(
f'Train_steps/{loss_name}', loss_meter.val,
global_step)
# if update:
n_update += 1
desc_str += f' | Total Update: {n_update}'
pbar.set_description(desc_str)
pbar.update(1)
if self.verbose:
pbar.close()
dist.barrier()
results = reduce_dict(epoch_results, self.args.gpu)
if self.args.gpu == 0:
total_loss = results['lm_loss'] + results[
'vis_loss'] + results['matched_loss'] + results['qa_loss']
total_count = results['lm_loss_count'] + results[
'vis_loss_count'] + results['matched_loss_count']
# + results['qa_loss_count']
avg_train_loss = total_loss / total_count
losses_str = f"Train Loss: {avg_train_loss:.4f}\n"
for name, loss in results.items():
if name[-4:] == 'loss':
loss_count = int(results[name + '_count'])
if loss_count > 0:
avg_loss = loss / loss_count
if name == 'lm_loss':
name = 'Mask_LM'
elif name == 'matched_loss':
name = 'Matched'
elif name == 'obj_loss':
name = 'Mask_Obj'
elif name == 'attr_loss':
name = 'Mask_Attr'
elif name == 'feat_loss':
name = 'Mask_Feat'
elif name == 'qa_loss':
name = 'QA'
losses_str += f"{name} ({loss_count}): {avg_loss:.4f} "
self.writer.add_scalar(f'Train Loss/{name}',
avg_loss, epoch)
losses_str += '\n'
print(losses_str)
self.logger.info(losses_str)
if self.args.task_qa:
dset2score, dset2cnt, score, cnt = self.train_loader.dataset.evaluator.evaluate(
uid2ans)
dset2score = reduce_dict(dset2score, self.args.gpu)
dset2cnt = reduce_dict(dset2cnt, self.args.gpu)
score_cnt_dict = reduce_dict({
'score': score,
'cnt': cnt
}, self.args.gpu)
if self.args.gpu == 0:
score = score_cnt_dict['score']
cnt = score_cnt_dict['cnt']
accu = score / cnt
dset2accu = {}
for dset in dset2cnt:
dset2accu[dset] = dset2score[dset] / dset2cnt[dset]
accu_str = "Overall Accu %0.4f, " % (accu)
sorted_keys = sorted(dset2accu.keys())
for key in sorted_keys:
accu_str += "%s Accu %0.4f, " % (key, dset2accu[key])
print(accu_str)
self.logger.info(accu_str)
dist.barrier()
# Validation
valid_results, valid_uid2ans = self.evaluate_epoch(epoch=epoch)
valid_results = reduce_dict(valid_results, self.args.gpu)
if self.args.gpu == 0:
valid_total_loss = valid_results['lm_loss'] + valid_results[
'vis_loss'] + valid_results[
'matched_loss'] + valid_results['qa_loss']
valid_total_count = valid_results[
'lm_loss_count'] + valid_results[
'vis_loss_count'] + valid_results['matched_loss_count']
# + valid_results['qa_loss_count']
avg_valid_loss = valid_total_loss / valid_total_count
losses_str = f"Valid Loss: {avg_valid_loss:.4f}\n"
for name, loss in valid_results.items():
if name[-4:] == 'loss':
loss_count = int(valid_results[name + '_count'])
if loss_count > 0:
avg_loss = loss / loss_count
if name == 'lm_loss':
name = 'Mask_LM'
elif name == 'matched_loss':
name = 'Matched'
elif name == 'obj_loss':
name = 'Mask_Obj'
elif name == 'attr_loss':
name = 'Mask_Attr'
elif name == 'feat_loss':
name = 'Mask_Feat'
elif name == 'qa_loss':
name = 'QA'
losses_str += f"{name} ({loss_count}): {avg_loss:.4f} "
self.writer.add_scalar(f'Valid Loss/{name}',
avg_loss, epoch)
losses_str += '\n'
print(losses_str)
self.logger.info(losses_str)
if self.args.task_qa:
dset2score, dset2cnt, score, cnt = self.val_loader.dataset.evaluator.evaluate(
valid_uid2ans)
dset2score = reduce_dict(dset2score, self.args.gpu)
dset2cnt = reduce_dict(dset2cnt, self.args.gpu)
score_cnt_dict = reduce_dict({
'score': score,
'cnt': cnt
}, self.args.gpu)
if self.args.gpu == 0:
score = score_cnt_dict['score']
cnt = score_cnt_dict['cnt']
accu = score / cnt
dset2accu = {}
for dset in dset2cnt:
dset2accu[dset] = dset2score[dset] / dset2cnt[dset]
accu_str = "Overall Accu %0.4f, " % (accu)
sorted_keys = sorted(dset2accu.keys())
for key in sorted_keys:
accu_str += "%s Accu %0.4f, " % (key, dset2accu[key])
print(accu_str)
self.logger.info(accu_str)
dist.barrier()
if self.verbose:
# Save
if avg_valid_loss < best_eval_loss:
best_eval_loss = avg_valid_loss
# self.save("BEST_EVAL_LOSS")
self.save("Epoch%02d" % (epoch + 1))
dist.barrier()
def train(self):
LOSSES_NAME = self.args.LOSSES_NAME
if self.args.dry:
results = self.evaluate_epoch(epoch=0)
if self.verbose:
loss_meters = [LossMeter() for _ in range(len(LOSSES_NAME))]
best_eval_loss = 9595.
if 't5' in self.args.backbone:
project_name = "VLT5_Pretrain"
elif 'bart' in self.args.backbone:
project_name = "VLBart_Pretrain"
wandb.init(project=project_name)
wandb.run.name = self.args.run_name
wandb.config.update(self.args)
wandb.watch(self.model)
src_dir = Path(__file__).resolve().parent
base_path = str(src_dir.parent)
src_dir = str(src_dir)
wandb.save(os.path.join(src_dir + "/*.py"), base_path=base_path)
if self.args.distributed:
dist.barrier()
global_step = 0
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
# Train
self.model.train()
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=250)
epoch_results = {}
for loss_name in LOSSES_NAME:
epoch_results[loss_name] = 0.
epoch_results[f'{loss_name}_count'] = 0
for step_i, batch in enumerate(self.train_loader):
if self.args.fp16 and _use_native_amp:
with autocast():
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
else:
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
loss = results['loss']
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
loss = loss.detach()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(amp.master_params(self.optim), self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(self.model.parameters(), self.args.clip_grad_norm)
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
# self.model.zero_grad()
for param in self.model.parameters():
param.grad = None
global_step += 1
if self.lr_scheduler:
if version.parse(torch.__version__) >= version.parse("1.4"):
lr = self.lr_scheduler.get_last_lr()[0]
else:
lr = self.lr_scheduler.get_lr()[0]
else:
try:
lr = self.optim.get_lr()[0]
except AttributeError:
lr = self.args.lr
for k, v in results.items():
if k in epoch_results:
if isinstance(v, int):
epoch_results[k] += v
elif isinstance(v, torch.Tensor):
epoch_results[k] += v.item()
if self.verbose:
desc_str = f'Epoch {epoch} | LR {lr:.6f} |'
for i, (loss_name, loss_meter) in enumerate(zip(LOSSES_NAME, loss_meters)):
if loss_name in results:
loss_meter.update(results[f'{loss_name}'] / results[f'{loss_name}_count'])
if len(loss_meter) > 0:
loss_count = epoch_results[f'{loss_name}_count']
desc_str += f' {loss_name} ({loss_count}) {loss_meter.val:.3f}'
pbar.set_description(desc_str)
pbar.update(1)
if self.verbose:
pbar.close()
dist.barrier()
results = reduce_dict(epoch_results, average=False)
if self.verbose:
train_loss = results['total_loss']
train_loss_count = results['total_loss_count']
avg_train_loss = train_loss / train_loss_count
losses_str = f"Train Loss: {avg_train_loss:.3f}\n"
for name, loss in results.items():
if name[-4:] == 'loss':
loss_count = int(results[name+'_count'])
if loss_count > 0:
avg_loss = loss/loss_count
losses_str += f"{name} ({loss_count}): {avg_loss:.3f} "
wandb.log({f'Train Loss/{name}': avg_loss}, step=epoch)
losses_str += '\n'
print(losses_str)
dist.barrier()
# Validation
valid_results, valid_uid2ans = self.evaluate_epoch(epoch=epoch)
valid_results = reduce_dict(valid_results, average=False)
if self.verbose:
valid_loss = valid_results['total_loss']
valid_loss_count = valid_results['total_loss_count']
avg_valid_loss = valid_loss / valid_loss_count
losses_str = f"Valid Loss: {avg_valid_loss:.3f}\n"
for name, loss in valid_results.items():
if name[-4:] == 'loss':
loss_count = int(valid_results[name+'_count'])
if loss_count > 0:
avg_loss = loss / loss_count
losses_str += f"{name} ({loss_count}): {avg_loss:.3f} "
wandb.log({f'Valid Loss/{name}': avg_loss}, step=epoch)
losses_str += '\n'
print(losses_str)
if 'qa' in self.args.losses:
dset2score, dset2cnt, score, cnt = self.val_loader.dataset.evaluator.evaluate(valid_uid2ans)
if len(dset2score) == 0:
dset2score = {'vqa': 0, 'gqa': 0, 'visual7w': 0}
dset2cnt = {'vqa': 1, 'gqa': 1, 'visual7w': 1}
cnt = 3
score = 0
dset2score = reduce_dict(dset2score, average=False)
dset2cnt = reduce_dict(dset2cnt, average=False)
score_cnt_dict = reduce_dict({'score': score, 'cnt': cnt}, average=False)
if self.args.gpu == 0:
score = score_cnt_dict['score']
cnt = score_cnt_dict['cnt']
accu = score / cnt
dset2accu = {}
for dset in dset2cnt:
dset2accu[dset] = dset2score[dset] / dset2cnt[dset]
accu_str = "Overall QA Acc %0.4f" % (accu)
wandb.log({f'Valid QA Acc/Overall': accu}, step=epoch)
sorted_keys = sorted(dset2accu.keys())
for key in sorted_keys:
accu_str += ", %s Acc %0.4f" % (key, dset2accu[key])
wandb.log({f'Valid QA Acc/{key}': dset2accu[key]}, step=epoch)
print(accu_str)
accu_str += '\n\n'
dist.barrier()
if self.verbose:
# Save
if avg_valid_loss < best_eval_loss:
best_eval_loss = avg_valid_loss
# self.save("BEST_EVAL_LOSS")
self.save("Epoch%02d" % (epoch + 1))
dist.barrier()
if self.verbose:
wandb.log({'finished': True})
def evaluate_epoch(self, epoch):
LOSSES_NAME = self.args.LOSSES_NAME
task_dict = {
'Mask_LM': 'word_mask',
'Matched': 'matched',
'Mask_Obj': 'vis_mask',
'Mask_Attr': 'vis_mask',
'Mask_Feat': 'vis_mask',
'QA': 'qa'
}
epoch_results = {
'lm_loss': 0,
'vis_loss': 0,
'matched_loss': 0,
'qa_loss': 0,
'obj_loss': 0,
'feat_loss': 0,
'attr_loss': 0,
}
for k in list(epoch_results.keys()):
if k[-4:] == 'loss':
epoch_results[f'{k}_count'] = 0
uid2ans = {}
self.model.eval()
with torch.no_grad():
if self.verbose:
loss_meter = LossMeter()
loss_meters = [LossMeter() for _ in range(len(LOSSES_NAME))]
loss_counts = [0 for _ in range(len(LOSSES_NAME))]
pbar = tqdm(total=len(self.val_loader), ncols=180)
for step_i, batch in enumerate(self.val_loader):
# task = random.choice(self.args.MASK_MODALITY)
task_i = step_i % len(self.args.MASK_MODALITY)
task = self.args.MASK_MODALITY[task_i]
if self.args.vis_mask_COCO_only or self.args.vis_mask_COCOVG_only:
if task == 'vis_mask':
batch['word_id'] = batch['COCO_word_id']
if self.args.clustering:
batch['cluster_id'] = batch['COCO_cluster_id']
results = self.forward(batch, task)
if task == 'vis_mask':
epoch_results['vis_loss_count'] += 1
if 'Mask_Obj' in LOSSES_NAME:
epoch_results['obj_loss_count'] += 1
if 'Mask_Feat' in LOSSES_NAME:
epoch_results['feat_loss_count'] += 1
if 'Mask_Attr' in LOSSES_NAME:
epoch_results['attr_loss_count'] += 1
elif task == 'word_mask':
epoch_results['lm_loss_count'] += 1
elif task == 'matched':
epoch_results['matched_loss_count'] += 1
elif task == 'qa':
epoch_results['qa_loss_count'] += 1
if self.args.task_qa:
qa_pred = results['qa_pred']
for uid, ans_id in zip(batch['uid'],
qa_pred.cpu().numpy()):
ans = self.train_loader.dataset.answer_table.id2ans(
ans_id)
uid2ans[uid] = ans
for k, v in results.items():
if k in epoch_results:
epoch_results[k] += v.item()
if self.verbose:
desc_str = f'Valid Epoch {epoch} | '
# if self.args.task_qa:
# loss_meter.update(results['qa_loss'].item())
if self.args.task_qa:
loss_meter = loss_meters[-1]
loss_meter.update(results['qa_loss'].item())
loss_counts[-1] += 1
for i, (loss_name, loss_meter) in enumerate(
zip(LOSSES_NAME, loss_meters)):
if task_dict[loss_name] == task:
if task == 'vis_mask':
if loss_name == 'Mask_Obj':
loss_meter.update(
results['obj_loss'].item())
elif loss_name == 'Mask_Attr':
loss_meter.update(
results['attr_loss'].item())
elif loss_name == 'Mask_Feat':
loss_meter.update(
results['feat_loss'].item())
elif task == 'word_mask':
loss_meter.update(results['lm_loss'].item())
elif task == 'matched':
loss_meter.update(
results['matched_loss'].item())
# elif task == 'qa':
# loss_meter.update(results['qa_loss'].item())
loss_counts[i] += 1
if len(loss_meter) > 0:
loss_count = loss_counts[i]
if loss_name in [
'Mask_LM', 'Matched', 'Mask_Obj',
'Mask_Attr', 'Mask_Feat', 'QA'
]:
desc_str += f' {loss_name} ({loss_count}) {loss_meter.val:.2f}'
else:
desc_str += f' {loss_name} {loss_meter.val:.2f}'
pbar.set_description(desc_str)
pbar.update(1)
dist.barrier()
if self.verbose:
pbar.close()
dist.barrier()
if not self.args.task_qa:
uid2ans = None
return epoch_results, uid2ans
def train(cont=False):
# for tensorboard tracking
logger = get_logger()
logger.info("(1) Initiating Training ... ")
logger.info("Training on device: {}".format(device))
writer = SummaryWriter()
# init model
aux_layers = None
if net == "SETR-PUP":
aux_layers, model = get_SETR_PUP()
elif net == "SETR-MLA":
aux_layers, model = get_SETR_MLA()
elif net == "TransUNet-Base":
model = get_TransUNet_base()
elif net == "TransUNet-Large":
model = get_TransUNet_large()
elif net == "UNet":
model = UNet(CLASS_NUM)
# prepare dataset
cluster_model = get_clustering_model(logger)
train_dataset = CityscapeDataset(img_dir=data_dir,
img_dim=IMG_DIM,
mode="train",
cluster_model=cluster_model)
valid_dataset = CityscapeDataset(img_dir=data_dir,
img_dim=IMG_DIM,
mode="val",
cluster_model=cluster_model)
train_loader = DataLoader(train_dataset,
batch_size=batch_size,
shuffle=True)
valid_loader = DataLoader(valid_dataset,
batch_size=batch_size,
shuffle=False)
logger.info("(2) Dataset Initiated. ")
# optimizer
epochs = epoch_num if epoch_num > 0 else iteration_num // len(
train_loader) + 1
optim = SGD(model.parameters(),
lr=lrate,
momentum=momentum,
weight_decay=wdecay)
# optim = Adam(model.parameters(), lr=lrate)
scheduler = lr_scheduler.MultiStepLR(
optim, milestones=[int(epochs * fine_tune_ratio)], gamma=0.1)
cur_epoch = 0
best_loss = float('inf')
epochs_since_improvement = 0
# for continue training
if cont:
model, optim, cur_epoch, best_loss = load_ckpt_continue_training(
best_ckpt_src, model, optim, logger)
logger.info("Current best loss: {0}".format(best_loss))
with warnings.catch_warnings():
warnings.simplefilter("ignore")
for i in range(cur_epoch):
scheduler.step()
else:
model = nn.DataParallel(model)
model = model.to(device)
logger.info("(3) Model Initiated ... ")
logger.info("Training model: {}".format(net) + ". Training Started.")
# loss
ce_loss = CrossEntropyLoss()
if use_dice_loss:
dice_loss = DiceLoss(CLASS_NUM)
# loop over epochs
iter_count = 0
epoch_bar = tqdm.tqdm(total=epochs,
desc="Epoch",
position=cur_epoch,
leave=True)
logger.info("Total epochs: {0}. Starting from epoch {1}.".format(
epochs, cur_epoch + 1))
for e in range(epochs - cur_epoch):
epoch = e + cur_epoch
# Training.
model.train()
trainLossMeter = LossMeter()
train_batch_bar = tqdm.tqdm(total=len(train_loader),
desc="TrainBatch",
position=0,
leave=True)
for batch_num, (orig_img, mask_img) in enumerate(train_loader):
orig_img, mask_img = orig_img.float().to(
device), mask_img.float().to(device)
if net == "TransUNet-Base" or net == "TransUNet-Large":
pred = model(orig_img)
elif net == "SETR-PUP" or net == "SETR-MLA":
if aux_layers is not None:
pred, _ = model(orig_img)
else:
pred = model(orig_img)
elif net == "UNet":
pred = model(orig_img)
loss_ce = ce_loss(pred, mask_img[:].long())
if use_dice_loss:
loss_dice = dice_loss(pred, mask_img, softmax=True)
loss = 0.5 * (loss_ce + loss_dice)
else:
loss = loss_ce
# Backward Propagation, Update weight and metrics
optim.zero_grad()
loss.backward()
optim.step()
# update learning rate
for param_group in optim.param_groups:
orig_lr = param_group['lr']
param_group['lr'] = orig_lr * (1.0 -
iter_count / iteration_num)**0.9
iter_count += 1
# Update loss
trainLossMeter.update(loss.item())
# print status
if (batch_num + 1) % print_freq == 0:
status = 'Epoch: [{0}][{1}/{2}]\t' \
'Loss {loss.val:.4f} ({loss.avg:.4f})\t'.format(epoch+1, batch_num+1, len(train_loader), loss=trainLossMeter)
logger.info(status)
# log loss to tensorboard
if (batch_num + 1) % tensorboard_freq == 0:
writer.add_scalar(
'Train_Loss_{0}'.format(tensorboard_freq),
trainLossMeter.avg,
epoch * (len(train_loader) / tensorboard_freq) +
(batch_num + 1) / tensorboard_freq)
train_batch_bar.update(1)
writer.add_scalar('Train_Loss_epoch', trainLossMeter.avg, epoch)
# Validation.
model.eval()
validLossMeter = LossMeter()
valid_batch_bar = tqdm.tqdm(total=len(valid_loader),
desc="ValidBatch",
position=0,
leave=True)
with torch.no_grad():
for batch_num, (orig_img, mask_img) in enumerate(valid_loader):
orig_img, mask_img = orig_img.float().to(
device), mask_img.float().to(device)
if net == "TransUNet-Base" or net == "TransUNet-Large":
pred = model(orig_img)
elif net == "SETR-PUP" or net == "SETR-MLA":
if aux_layers is not None:
pred, _ = model(orig_img)
else:
pred = model(orig_img)
elif net == "UNet":
pred = model(orig_img)
loss_ce = ce_loss(pred, mask_img[:].long())
if use_dice_loss:
loss_dice = dice_loss(pred, mask_img, softmax=True)
loss = 0.5 * (loss_ce + loss_dice)
else:
loss = loss_ce
# Update loss
validLossMeter.update(loss.item())
# print status
if (batch_num + 1) % print_freq == 0:
status = 'Validation: [{0}][{1}/{2}]\t' \
'Loss {loss.val:.4f} ({loss.avg:.4f})\t'.format(epoch+1, batch_num+1, len(valid_loader), loss=validLossMeter)
logger.info(status)
# log loss to tensorboard
if (batch_num + 1) % tensorboard_freq == 0:
writer.add_scalar(
'Valid_Loss_{0}'.format(tensorboard_freq),
validLossMeter.avg,
epoch * (len(valid_loader) / tensorboard_freq) +
(batch_num + 1) / tensorboard_freq)
valid_batch_bar.update(1)
valid_loss = validLossMeter.avg
writer.add_scalar('Valid_Loss_epoch', valid_loss, epoch)
logger.info("Validation Loss of epoch [{0}/{1}]: {2}\n".format(
epoch + 1, epochs, valid_loss))
# update optim scheduler
scheduler.step()
# save checkpoint
is_best = valid_loss < best_loss
best_loss_tmp = min(valid_loss, best_loss)
if not is_best:
epochs_since_improvement += 1
logger.info("Epochs since last improvement: %d\n" %
(epochs_since_improvement, ))
if epochs_since_improvement == early_stop_tolerance:
break # early stopping.
else:
epochs_since_improvement = 0
state = {
'epoch': epoch,
'loss': best_loss_tmp,
'model_state_dict': model.state_dict(),
'optimizer_state_dict': optim.state_dict(),
}
torch.save(state, ckpt_src)
logger.info("Checkpoint updated.")
best_loss = best_loss_tmp
epoch_bar.update(1)
writer.close()
def train(self):
if self.verbose:
loss_meter = LossMeter()
quesid2ans = {}
best_valid = 0.
print("Valid Oracle: %0.2f" %
(self.oracle_score(self.val_loader) * 100))
from torch.utils.tensorboard import SummaryWriter
self.writer = SummaryWriter(log_dir=self.args.log_dir)
hparam_dict = {}
for k, v in self.args.__dict__.items():
if type(v) in [int, float, str, bool, torch.Tensor]:
hparam_dict[k] = v
metric_dict = {}
self.writer.add_hparams(hparam_dict, metric_dict)
if self.args.distributed:
dist.barrier()
self.optim.zero_grad()
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
self.model.train()
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=150)
quesid2ans = {}
for step_i, batch in enumerate(self.train_loader):
update = True
if self.args.update_freq > 1:
if step_i == 0:
update = False
elif step_i % self.args.update_freq == 0 or step_i == len(
self.train_loader) - 1:
update = True
else:
update = False
vis_feats = batch['vis_feats'].cuda()
boxes = batch['boxes'].cuda()
input_ids = batch['word_ids'].cuda()
target = batch['targets'].cuda()
ques_id = batch['question_ids']
B = len(batch['word_ids'])
results = self.model(
input_ids=input_ids,
visual_feats=vis_feats,
visual_pos=boxes,
attention_mask=input_ids > 0,
)
logit = results['logit']
assert logit.size() == target.size()
assert logit.size() == (B, self.num_answers)
loss = self.bce_loss(logit, target)
loss.backward()
if update:
if not self.args.no_clip_grad:
nn.utils.clip_grad_norm_(self.model.parameters(),
self.args.clip_grad_norm)
self.optim.step()
self.lr_scheduler.step()
for param in self.model.parameters():
param.grad = None
try:
lr = self.scheduler.get_last_lr()[0]
except AttributeError:
lr = self.args.lr
if self.verbose:
loss_meter.update(loss.item())
desc_str = f'Epoch {epoch} | LR {lr:.6f} | '
desc_str += f'Loss {loss_meter.val:4f} |'
score, predict = logit.max(1)
predict = predict.cpu().numpy()
target = target.cpu().numpy()
for qid, pred in zip(ques_id, predict):
pred_ans = self.train_loader.dataset.raw_dataset.label2ans[
pred]
quesid2ans[qid] = pred_ans
pbar.set_description(desc_str)
pbar.update(1)
if self.args.distributed:
dist.barrier()
# score, label = logit.max(1)
# for qid, l in zip(ques_id, label.cpu().numpy()):
# ans = dset.label2ans[l]
# quesid2ans[qid.item()] = ans
if self.verbose:
pbar.close()
score = self.train_loader.evaluator.evaluate(quesid2ans) * 100.
log_str = "\nEpoch %d: Train %0.2f" % (epoch, score)
if not self.args.dry:
self.writer.add_scalar(f'GQA/Train/score', score, epoch)
# Validation
valid_score = self.evaluate(self.val_loader) * 100.
if valid_score > best_valid:
best_valid = valid_score
self.save("BEST")
log_str += "\nEpoch %d: Valid %0.2f" % (epoch, valid_score)
log_str += "\nEpoch %d: Best %0.2f\n" % (epoch, best_valid)
if not self.args.dry:
self.writer.add_scalar(f'GQA/Valid/score', valid_score,
epoch)
print(log_str)
self.logger.info(log_str)
if self.args.distributed:
dist.barrier()
if self.verbose:
self.save("LAST")
def train(self):
if self.verbose:
loss_meter = LossMeter()
best_valid = 0.
best_epoch = 0
if 't5' in self.args.backbone:
if self.args.use_vision:
project_name = "VLT5_MMT"
else:
project_name = "T5_MMT"
elif 'bart' in self.args.backbone:
if self.args.use_vision:
project_name = "VLBart_MMT"
else:
project_name = "Bart_MMT"
wandb.init(project=project_name)
wandb.run.name = self.args.run_name
wandb.config.update(self.args)
wandb.watch(self.model)
src_dir = Path(__file__).resolve().parent
base_path = str(src_dir.parent)
src_dir = str(src_dir)
wandb.save(os.path.join(src_dir + "/*.py"), base_path=base_path)
if self.args.distributed:
dist.barrier()
global_step = 0
for epoch in range(self.args.epochs):
if self.start_epoch is not None:
epoch += self.start_epoch
self.model.train()
if self.args.distributed:
self.train_loader.sampler.set_epoch(epoch)
if self.verbose:
pbar = tqdm(total=len(self.train_loader), ncols=120)
epoch_results = {
'loss': 0.,
}
for step_i, batch in enumerate(self.train_loader):
# self.optim.zero_grad()
if self.args.fp16 and _use_native_amp:
with autocast():
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
else:
if self.args.distributed:
results = self.model.module.train_step(batch)
else:
results = self.model.train_step(batch)
loss = results['loss']
# print(f'GPU{self.args.gpu} after loss')
if self.args.fp16 and _use_native_amp:
self.scaler.scale(loss).backward()
elif self.args.fp16 and _use_apex:
with amp.scale_loss(loss, self.optim) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
# print(f'GPU{self.args.gpu} after backward')
loss = loss.detach()
# Update Parameters
if self.args.clip_grad_norm > 0:
if self.args.fp16 and _use_native_amp:
self.scaler.unscale_(self.optim)
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
elif self.args.fp16 and _use_apex:
torch.nn.utils.clip_grad_norm_(amp.master_params(
self.optim), self.args.clip_grad_norm)
else:
torch.nn.utils.clip_grad_norm_(
self.model.parameters(), self.args.clip_grad_norm)
update = True
if self.args.gradient_accumulation_steps > 1:
if step_i == 0:
update = False
elif step_i % self.args.gradient_accumulation_steps == 0 or step_i == len(self.train_loader) - 1:
update = True
else:
update = False
if update:
if self.args.fp16 and _use_native_amp:
self.scaler.step(self.optim)
self.scaler.update()
else:
self.optim.step()
if self.lr_scheduler:
self.lr_scheduler.step()
# self.model.zero_grad()
for param in self.model.parameters():
param.grad = None
global_step += 1
for k, v in results.items():
if k in epoch_results:
epoch_results[k] += v.item()
if self.lr_scheduler:
if version.parse(torch.__version__) >= version.parse("1.4"):
lr = self.lr_scheduler.get_last_lr()[0]
else:
lr = self.lr_scheduler.get_lr()[0]
else:
try:
lr = self.optim.get_lr()[0]
except AttributeError:
lr = self.args.lr
if self.verbose:
loss_meter.update(loss.item())
desc_str = f'Epoch {epoch} | LR {lr:.6f} | Steps {global_step}'
desc_str += f' | Loss {loss_meter.val:4f}'
pbar.set_description(desc_str)
pbar.update(1)
# if self.args.distributed:
# dist.barrier()
if self.verbose:
pbar.close()
# Validation
valid_results = self.evaluate(self.val_loader)
valid_score = valid_results['BLEU']
if valid_score > best_valid:
best_valid = valid_score
best_epoch = epoch
self.save("BEST")
log_str = ''
log_str += pformat(valid_results)
log_str += "\nEpoch %d: Valid BLEU %0.4f" % (epoch, valid_score)
log_str += "\nEpoch %d: Best BLEU %0.4f\n" % (best_epoch, best_valid)
wandb_log_dict = {}
wandb_log_dict['Train/Loss'] = epoch_results['loss'] / len(self.train_loader)
for score_name, score in valid_results.items():
wandb_log_dict[f'Valid/{score_name}'] = score
wandb.log(wandb_log_dict, step=epoch)
print(log_str)
if self.args.distributed:
dist.barrier()
if self.verbose:
self.save("LAST")
# Test Set
best_path = os.path.join(self.args.output, 'BEST')
self.load(best_path)
if isinstance(self.test_loader, list):
for loader in self.test_loader:
split = loader.dataset.source
dump_path = os.path.join(self.args.output, f'submit_{split}_raw.txt')
test_results = self.evaluate(loader, dump_path=dump_path)
wandb_log_dict = {}
for score_name, score in test_results.items():
wandb_log_dict[f'{split}/{score_name}'] = score
wandb.log(wandb_log_dict, step=epoch)
log_str = f'{split} set results\n'
log_str += pformat(test_results)
print(log_str)
wandb.save(dump_path, base_path=self.args.output)
print('\nUploaded', dump_path)
else:
split = loader.dataset.source
dump_path = os.path.join(self.args.output, f'submit_{split}_raw.txt')
test_results = self.evaluate(loader, dump_path=dump_path)
wandb_log_dict = {}
for score_name, score in test_results.items():
wandb_log_dict[f'{split}/{score_name}'] = score
wandb.log(wandb_log_dict, step=epoch)
log_str = f'{split} set results\n'
log_str += pformat(test_results)
print(log_str)
wandb.save(dump_path, base_path=self.args.output)
print('\nUploaded', dump_path)
wandb.log({'finished': True})
class Finetuner:
def __init__(self, args):
self.args = args
self.args.n_datasets = len(args.data)
self.modelPath = Path('checkpoints') / args.expName
self.logger = create_output_dir(args, self.modelPath)
self.data = [DatasetSet(d, args.seq_len, args) for d in args.data]
self.losses_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.loss_total = LossMeter('total')
self.evals_recon = [
LossMeter(f'recon {i}') for i in range(self.args.n_datasets)
]
self.eval_total = LossMeter('eval total')
self.start_epoch = 0
#torch.manual_seed(args.seed)
#torch.cuda.manual_seed(args.seed)
#get the pretrained model checkpoints
checkpoint = args.checkpoint.parent.glob(args.checkpoint.name +
'_*.pth')
checkpoint = [c for c in checkpoint
if extract_id(c) in args.decoder][0]
model_args = torch.load(args.checkpoint.parent / 'args.pth')[0]
self.encoder = Encoder(model_args)
self.decoder = WaveNet(model_args)
self.encoder = Encoder(model_args)
self.encoder.load_state_dict(torch.load(checkpoint)['encoder_state'])
#encoder freeze
for param in self.encoder.parameters():
param.requires_grad = False
#self.logger.debug(f'encoder at start: {param}')
self.decoder = WaveNet(model_args)
self.decoder.load_state_dict(torch.load(checkpoint)['decoder_state'])
#decoder freeze
for param in self.decoder.layers[:-args.decoder_update].parameters():
param.requires_grad = False
#self.logger.debug(f'decoder at start: {param}')
self.encoder = torch.nn.DataParallel(self.encoder).cuda()
self.decoder = torch.nn.DataParallel(self.decoder).cuda()
self.model_optimizer = optim.Adam(chain(self.encoder.parameters(),
self.decoder.parameters()),
lr=args.lr)
self.lr_manager = torch.optim.lr_scheduler.ExponentialLR(
self.model_optimizer, args.lr_decay)
self.lr_manager.step()
def train_batch(self, x, x_aug, dset_num):
'train batch without considering the discriminator'
x = x.float()
x_aug = x_aug.float()
z = self.encoder(x_aug)
y = self.decoder(x, z)
recon_loss = cross_entropy_loss(y, x)
self.losses_recon[dset_num].add(recon_loss.data.cpu().numpy().mean())
loss = recon_loss.mean()
self.model_optimizer.zero_grad()
loss.backward()
self.model_optimizer.step()
self.loss_total.add(loss.data.item())
return loss.data.item()
def train_epoch(self, epoch):
for meter in self.losses_recon:
meter.reset()
self.loss_total.reset()
self.decoder.train()
n_batches = self.args.epoch_len
with tqdm(total=n_batches,
desc='Train epoch %d' % epoch) as train_enum:
for batch_num in range(n_batches):
if self.args.short and batch_num == 3:
break
if self.args.distributed:
assert self.args.rank < self.args.n_datasets, "No. of workers must be equal to #dataset"
# dset_num = (batch_num + self.args.rank) % self.args.n_datasets
dset_num = self.args.rank
else:
dset_num = batch_num % self.args.n_datasets
x, x_aug = next(self.data[dset_num].train_iter)
x = wrap(x)
x_aug = wrap(x_aug)
batch_loss = self.train_batch(x, x_aug, dset_num)
train_enum.set_description(
f'Train (loss: {batch_loss:.2f}) epoch {epoch}')
train_enum.update()
def eval_batch(self, x, x_aug, dset_num):
x, x_aug = x.float(), x_aug.float()
z = self.encoder(x)
y = self.decoder(x, z)
recon_loss = cross_entropy_loss(y, x)
self.evals_recon[dset_num].add(recon_loss.data.cpu().numpy().mean())
total_loss = recon_loss.mean().data.item()
self.eval_total.add(total_loss)
return total_loss
def evaluate_epoch(self, epoch):
for meter in self.evals_recon:
meter.reset()
self.eval_total.reset()
self.encoder.eval()
self.decoder.eval()
n_batches = int(np.ceil(self.args.epoch_len / 10))
with tqdm(total=n_batches) as valid_enum, torch.no_grad():
for batch_num in range(n_batches):
if self.args.short and batch_num == 10:
break
if self.args.distributed:
assert self.args.rank < self.args.n_datasets, "No. of workers must be equal to #dataset"
dset_num = self.args.rank
else:
dset_num = batch_num % self.args.n_datasets
x, x_aug = next(self.data[dset_num].valid_iter)
x = wrap(x)
x_aug = wrap(x_aug)
batch_loss = self.eval_batch(x, x_aug, dset_num)
valid_enum.set_description(
f'Test (loss: {batch_loss:.2f}) epoch {epoch}')
valid_enum.update()
@staticmethod
def format_losses(meters):
losses = [meter.summarize_epoch() for meter in meters]
return ', '.join('{:.4f}'.format(x) for x in losses)
def train_losses(self):
meters = [*self.losses_recon]
return self.format_losses(meters)
def eval_losses(self):
meters = [*self.evals_recon]
return self.format_losses(meters)
def finetune(self):
best_eval = float('inf')
for epoch in range(self.start_epoch,
self.start_epoch + self.args.epochs):
self.logger.info(
f'Starting epoch, Rank {self.args.rank}, Dataset: {self.args.data[self.args.rank]}'
)
self.train_epoch(epoch)
self.evaluate_epoch(epoch)
self.logger.info(
f'Epoch %s Rank {self.args.rank} - Train loss: (%s), Test loss (%s)',
epoch, self.train_losses(), self.eval_losses())
self.lr_manager.step()
val_loss = self.eval_total.summarize_epoch()
if val_loss < best_eval:
self.save_model(f'bestmodel_{self.args.rank}.pth')
best_eval = val_loss
if not self.args.per_epoch:
self.save_model(f'lastmodel_{self.args.rank}.pth')
else:
self.save_model(f'lastmodel_{epoch}_rank_{self.args.rank}.pth')
if self.args.is_master:
torch.save([self.args, epoch], '%s/args.pth' % self.modelPath)
self.logger.debug('Ended epoch')
def save_model(self, filename):
save_path = self.modelPath / filename
torch.save(
{
'encoder_state': self.encoder.module.state_dict(),
'decoder_state': self.decoder.module.state_dict(),
'model_optimizer_state': self.model_optimizer.state_dict(),
'dataset': self.args.rank,
}, save_path)
self.logger.debug(f'Saved model to {save_path}')