def train():
cfg = DefaultConfig()
args = {
'resnet18': RESNET18_SUNRGBD_CONFIG().args(),
}
# Setting random seed
if cfg.MANUAL_SEED is None:
cfg.MANUAL_SEED = random.randint(1, 10000)
random.seed(cfg.MANUAL_SEED)
torch.manual_seed(cfg.MANUAL_SEED)
# args for different backbones
cfg.parse(args['resnet18'])
os.environ["CUDA_VISIBLE_DEVICES"] = cfg.GPU_IDS
device_ids = torch.cuda.device_count()
print('device_ids:', device_ids)
project_name = reduce(lambda x, y: str(x) + '/' + str(y),
os.path.realpath(__file__).split(os.sep)[:-1])
util.mkdir('logs')
# data
train_dataset = dataset.AlignedConcDataset(
cfg,
data_dir=cfg.DATA_DIR_TRAIN,
transform=transforms.Compose([
dataset.Resize((cfg.LOAD_SIZE, cfg.LOAD_SIZE)),
dataset.RandomCrop((cfg.FINE_SIZE, cfg.FINE_SIZE)),
dataset.RandomHorizontalFlip(),
dataset.ToTensor(),
dataset.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
]))
val_dataset = dataset.AlignedConcDataset(
cfg,
data_dir=cfg.DATA_DIR_VAL,
transform=transforms.Compose([
dataset.Resize((cfg.LOAD_SIZE, cfg.LOAD_SIZE)),
dataset.CenterCrop((cfg.FINE_SIZE, cfg.FINE_SIZE)),
dataset.ToTensor(),
dataset.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
]))
batch_size_val = cfg.BATCH_SIZE
unlabeled_loader = None
if cfg.UNLABELED:
unlabeled_dataset = dataset.AlignedConcDataset(
cfg,
data_dir=cfg.DATA_DIR_UNLABELED,
transform=transforms.Compose([
dataset.Resize((cfg.LOAD_SIZE, cfg.LOAD_SIZE)),
dataset.RandomCrop((cfg.FINE_SIZE, cfg.FINE_SIZE)),
dataset.RandomHorizontalFlip(),
dataset.ToTensor(),
dataset.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
]),
labeled=False)
unlabeled_loader = DataProvider(cfg, dataset=unlabeled_dataset)
train_loader = DataProvider(cfg,
dataset=train_dataset,
batch_size=batch_size_val)
val_loader = DataProvider(cfg,
dataset=val_dataset,
batch_size=batch_size_val,
shuffle=False)
# class weights
num_classes_train = list(
Counter([i[1] for i in train_loader.dataset.imgs]).values())
cfg.CLASS_WEIGHTS_TRAIN = torch.FloatTensor(num_classes_train)
writer = SummaryWriter(log_dir=cfg.LOG_PATH) # tensorboard
model = TRecgNet(cfg, writer=writer)
model.set_data_loader(train_loader, val_loader, unlabeled_loader)
if cfg.RESUME:
checkpoint_path = os.path.join(cfg.CHECKPOINTS_DIR, cfg.RESUME_PATH)
checkpoint = torch.load(checkpoint_path)
load_epoch = checkpoint['epoch']
model.load_checkpoint(model.net,
checkpoint_path,
checkpoint,
data_para=True)
cfg.START_EPOCH = load_epoch
if cfg.INIT_EPOCH:
# just load pretrained parameters
print('load checkpoint from another source')
cfg.START_EPOCH = 1
print('>>> task path is {0}'.format(project_name))
# train
model.train_parameters(cfg)
print('save model ...')
model_filename = '{0}_{1}_{2}.pth'.format(cfg.MODEL, cfg.WHICH_DIRECTION,
cfg.NITER_TOTAL)
model.save_checkpoint(cfg.NITER_TOTAL, model_filename)
if writer is not None:
writer.close()
project_name = reduce(lambda x, y: str(x) + '/' + str(y),
os.path.realpath(__file__).split(os.sep)[:-1])
util.mkdir('logs')
train_dataset = None
val_dataset = None
unlabeled_dataset = None
train_loader = None
val_loader = None
unlabeled_loader = None
train_transforms = list()
train_transforms.append(conc_dataset.Resize((cfg.LOAD_SIZE, cfg.LOAD_SIZE)))
train_transforms.append(conc_dataset.RandomCrop(
(cfg.FINE_SIZE, cfg.FINE_SIZE)))
train_transforms.append(conc_dataset.RandomHorizontalFlip())
train_transforms.append(conc_dataset.ToTensor())
train_transforms.append(
conc_dataset.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5]))
val_transforms = list()
val_transforms.append(conc_dataset.Resize((cfg.LOAD_SIZE, cfg.LOAD_SIZE)))
val_transforms.append(conc_dataset.CenterCrop((cfg.FINE_SIZE, cfg.FINE_SIZE)))
val_transforms.append(conc_dataset.ToTensor())
val_transforms.append(
conc_dataset.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5]))
if cfg.DATA_TYPE == 'pair':
train_dataset = conc_dataset.AlignedConcDataset(
cfg,
os.environ["CUDA_VISIBLE_DEVICES"] = cfg.GPU_IDS
device_ids = torch.cuda.device_count()
print('device_ids:', device_ids)
project_name = reduce(lambda x, y: str(x) + '/' + str(y),
os.path.realpath(__file__).split(os.sep)[:-1])
util.mkdir('logs')
# data
train_dataset = dataset.AlignedConcDataset(
cfg,
data_dir=cfg.DATA_DIR_TRAIN,
transform=transforms.Compose([
dataset.Resize((cfg.LOAD_SIZE, cfg.LOAD_SIZE)),
dataset.RandomCrop((cfg.FINE_SIZE, cfg.FINE_SIZE)),
dataset.RandomHorizontalFlip(),
dataset.ToTensor(),
dataset.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
]))
val_dataset = dataset.AlignedConcDataset(
cfg,
data_dir=cfg.DATA_DIR_VAL,
transform=transforms.Compose([
dataset.Resize((cfg.LOAD_SIZE, cfg.LOAD_SIZE)),
dataset.CenterCrop((cfg.FINE_SIZE, cfg.FINE_SIZE)),
dataset.ToTensor(),
dataset.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
]))
batch_size_val = cfg.BATCH_SIZE