def TrainValProgram(config):
os.environ["CUDA_VISIBLE_DEVICES"] = config['base']['gpu_id']
create_dir(config['base']['checkpoints'])
checkpoints = os.path.join(
config['base']['checkpoints'], "ag_%s_bb_%s_he_%s_bs_%d_ep_%d" %
(config['base']['algorithm'],
config['backbone']['function'].split(',')[-1],
config['head']['function'].split(',')[-1],
config['trainload']['batch_size'], config['base']['n_epoch']))
create_dir(checkpoints)
model = create_module(config['architectures']['model_function'])(config)
criterion = create_module(config['architectures']['loss_function'])(config)
train_dataset = create_module(config['trainload']['function'])(config)
test_dataset = create_module(config['testload']['function'])(config)
optimizer = create_module(config['optimizer']['function'])(config, model)
optimizer_decay = create_module(config['optimizer_decay']['function'])
img_process = create_module(config['postprocess']['function'])(config)
train_data_loader = torch.utils.data.DataLoader(
train_dataset,
batch_size=config['trainload']['batch_size'],
shuffle=True,
num_workers=config['trainload']['num_workers'],
worker_init_fn=worker_init_fn,
drop_last=True,
pin_memory=True)
test_data_loader = torch.utils.data.DataLoader(
test_dataset,
batch_size=config['testload']['batch_size'],
shuffle=False,
num_workers=config['testload']['num_workers'],
drop_last=True,
pin_memory=True)
loss_bin = create_loss_bin(config['base']['algorithm'])
if torch.cuda.is_available():
if (len(config['base']['gpu_id'].split(',')) > 1):
model = torch.nn.DataParallel(model).cuda()
else:
model = model.cuda()
criterion = criterion.cuda()
start_epoch = 0
rescall, precision, hmean = 0, 0, 0
best_rescall, best_precision, best_hmean = 0, 0, 0
if config['base']['restore']:
print('Resuming from checkpoint.')
assert os.path.isfile(
config['base']['restore_file']), 'Error: no checkpoint file found!'
checkpoint = torch.load(config['base']['restore_file'])
start_epoch = checkpoint['epoch']
model.load_state_dict(checkpoint['state_dict'])
optimizer.load_state_dict(checkpoint['optimizer'])
best_rescall = checkpoint['rescall']
best_precision = checkpoint['precision']
best_hmean = checkpoint['hmean']
log_write = Logger(os.path.join(checkpoints, 'log.txt'),
title=config['base']['algorithm'],
resume=True)
else:
print('Training from scratch.')
log_write = Logger(os.path.join(checkpoints, 'log.txt'),
title=config['base']['algorithm'])
title = list(loss_bin.keys())
title.extend([
'piexl_acc', 'piexl_iou', 't_rescall', 't_precision', 't_hmean',
'b_rescall', 'b_precision', 'b_hmean'
])
log_write.set_names(title)
for epoch in range(start_epoch, config['base']['n_epoch']):
model.train()
optimizer_decay(config, optimizer, epoch)
loss_write = ModelTrain(train_data_loader, model, criterion, optimizer,
loss_bin, config, epoch)
if (epoch >= config['base']['start_val']):
create_dir(os.path.join(checkpoints, 'val'))
create_dir(os.path.join(checkpoints, 'val', 'res_img'))
create_dir(os.path.join(checkpoints, 'val', 'res_txt'))
model.eval()
rescall, precision, hmean = ModelEval(test_dataset,
test_data_loader, model,
img_process, checkpoints,
config)
print('rescall:', rescall, 'precision', precision, 'hmean', hmean)
if (hmean > best_hmean):
save_checkpoint(
{
'epoch': epoch + 1,
'state_dict': model.state_dict(),
'lr': config['optimizer']['base_lr'],
'optimizer': optimizer.state_dict(),
'hmean': hmean,
'rescall': rescall,
'precision': precision
}, checkpoints,
config['base']['algorithm'] + '_best' + '.pth.tar')
best_hmean = hmean
best_precision = precision
best_rescall = rescall
loss_write.extend([
rescall, precision, hmean, best_rescall, best_precision, best_hmean
])
log_write.append(loss_write)
for key in loss_bin.keys():
loss_bin[key].loss_clear()
if epoch % config['base']['save_epoch'] == 0:
save_checkpoint(
{
'epoch': epoch + 1,
'state_dict': model.state_dict(),
'lr': config['optimizer']['base_lr'],
'optimizer': optimizer.state_dict(),
'hmean': 0,
'rescall': 0,
'precision': 0
}, checkpoints,
config['base']['algorithm'] + '_' + str(epoch) + '.pth.tar')
def TrainValProgram(config):
config = yaml.load(open(args.config, 'r', encoding='utf-8'),
Loader=yaml.FullLoader)
config = merge_config(config, args)
os.environ["CUDA_VISIBLE_DEVICES"] = config['base']['gpu_id']
create_dir(config['base']['checkpoints'])
checkpoints = os.path.join(
config['base']['checkpoints'], "ag_%s_bb_%s_he_%s_bs_%d_ep_%d_%s" %
(config['base']['algorithm'],
config['backbone']['function'].split(',')[-1],
config['head']['function'].split(',')[-1],
config['trainload']['batch_size'], config['base']['n_epoch'],
args.log_str))
create_dir(checkpoints)
LabelConverter = create_module(
config['label_transform']['function'])(config)
config['base']['classes'] = len(LabelConverter.alphabet)
model = create_module(config['architectures']['model_function'])(config)
criterion = create_module(config['architectures']['loss_function'])(config)
train_dataset = create_module(config['trainload']['function'])(config)
test_dataset = create_module(config['testload']['function'])(config)
optimizer = create_module(config['optimizer']['function'])(config, model)
optimizer_decay = create_module(config['optimizer_decay']['function'])
train_data_loader = torch.utils.data.DataLoader(
train_dataset,
batch_size=config['trainload']['batch_size'],
shuffle=True,
num_workers=config['trainload']['num_workers'],
worker_init_fn=worker_init_fn,
collate_fn=alignCollate(),
drop_last=True,
pin_memory=True)
test_data_loader = torch.utils.data.DataLoader(
test_dataset,
batch_size=config['testload']['batch_size'],
shuffle=False,
num_workers=config['testload']['num_workers'],
collate_fn=alignCollate(),
drop_last=True,
pin_memory=True)
loss_bin = create_loss_bin(config['base']['algorithm'])
if torch.cuda.is_available():
if (len(config['base']['gpu_id'].split(',')) > 1):
model = torch.nn.DataParallel(model).cuda()
else:
model = model.cuda()
criterion = criterion.cuda()
start_epoch = 0
val_acc = 0
val_loss = 0
best_acc = 0
if config['base']['restore']:
print('Resuming from checkpoint.')
assert os.path.isfile(
config['base']['restore_file']), 'Error: no checkpoint file found!'
checkpoint = torch.load(config['base']['restore_file'])
start_epoch = checkpoint['epoch']
model.load_state_dict(checkpoint['state_dict'])
optimizer.load_state_dict(checkpoint['optimizer'])
best_acc = checkpoint['best_acc']
log_write = Logger(os.path.join(checkpoints, 'log.txt'),
title=config['base']['algorithm'],
resume=True)
else:
print('Training from scratch.')
log_write = Logger(os.path.join(checkpoints, 'log.txt'),
title=config['base']['algorithm'])
title = list(loss_bin.keys())
title.extend(['val_loss', 'test_acc', 'best_acc'])
log_write.set_names(title)
for epoch in range(start_epoch, config['base']['n_epoch']):
model.train()
optimizer_decay(config, optimizer, epoch)
loss_write = ModelTrain(train_data_loader, LabelConverter, model,
criterion, optimizer, loss_bin, config, epoch)
if (epoch >= config['base']['start_val']):
model.eval()
val_acc, val_loss = ModelEval(test_data_loader, LabelConverter,
model, criterion, config)
print('val_acc:', val_acc, 'val_loss', val_loss)
if (val_acc > best_acc):
save_checkpoint(
{
'epoch': epoch + 1,
'state_dict': model.state_dict(),
'lr': config['optimizer']['base_lr'],
'optimizer': optimizer.state_dict(),
'best_acc': val_acc
}, checkpoints,
config['base']['algorithm'] + '_best' + '.pth.tar')
best_acc = val_acc
loss_write.extend([val_loss, val_acc, best_acc])
log_write.append(loss_write)
for key in loss_bin.keys():
loss_bin[key].loss_clear()
if epoch % config['base']['save_epoch'] == 0:
save_checkpoint(
{
'epoch': epoch + 1,
'state_dict': model.state_dict(),
'lr': config['optimizer']['base_lr'],
'optimizer': optimizer.state_dict(),
'best_acc': 0
}, checkpoints,
config['base']['algorithm'] + '_' + str(epoch) + '.pth.tar')