def test_swav(tmpdir, datadir, batch_size=2):
# inputs, y = batch (doesn't receive y for some reason)
datamodule = CIFAR10DataModule(data_dir=datadir,
batch_size=batch_size,
num_workers=0)
datamodule.train_transforms = SwAVTrainDataTransform(
normalize=cifar10_normalization(),
size_crops=[32, 16],
nmb_crops=[2, 1],
gaussian_blur=False)
datamodule.val_transforms = SwAVEvalDataTransform(
normalize=cifar10_normalization(),
size_crops=[32, 16],
nmb_crops=[2, 1],
gaussian_blur=False)
model = SwAV(arch='resnet18',
hidden_mlp=512,
gpus=0,
nodes=1,
num_samples=datamodule.num_samples,
batch_size=batch_size,
nmb_crops=[2, 1],
sinkhorn_iterations=1,
nmb_prototypes=2,
queue_length=0,
maxpool1=False,
first_conv=False,
dataset='cifar10')
trainer = Trainer(gpus=0, fast_dev_run=True, default_root_dir=tmpdir)
trainer.fit(model, datamodule=datamodule)
def test_swav(tmpdir, datadir):
seed_everything()
batch_size = 2
# inputs, y = batch (doesn't receive y for some reason)
datamodule = CIFAR10DataModule(
data_dir=datadir,
batch_size=batch_size,
num_workers=0
)
datamodule.train_transforms = SwAVTrainDataTransform(
normalize=cifar10_normalization(),
size_crops=[32, 16],
nmb_crops=[2, 1],
gaussian_blur=False
)
datamodule.val_transforms = SwAVEvalDataTransform(
normalize=cifar10_normalization(),
size_crops=[32, 16],
nmb_crops=[2, 1],
gaussian_blur=False
)
model = SwAV(
arch='resnet18',
hidden_mlp=512,
gpus=0,
nodes=1,
num_samples=datamodule.num_samples,
batch_size=batch_size,
nmb_crops=[2, 1],
sinkhorn_iterations=1,
nmb_prototypes=2,
maxpool1=False,
first_conv=False,
dataset='cifar10'
)
trainer = pl.Trainer(
gpus=0, fast_dev_run=True, max_epochs=1, default_root_dir=tmpdir, max_steps=3
)
trainer.fit(model, datamodule)
loss = trainer.progress_bar_dict['loss']
assert float(loss) > 0
def swav_example(): from pl_bolts.models.self_supervised import SwAV from pl_bolts.datamodules import STL10DataModule from pl_bolts.models.self_supervised.swav.transforms import SwAVTrainDataTransform, SwAVEvalDataTransform from pl_bolts.transforms.dataset_normalizations import stl10_normalization batch_size = 128 # Data module. dm = STL10DataModule(data_dir=".", num_workers=16, batch_size=batch_size) dm.train_dataloader = dm.train_dataloader_mixed dm.val_dataloader = dm.val_dataloader_mixed dm.train_transforms = SwAVTrainDataTransform(normalize=stl10_normalization()) dm.val_transforms = SwAVEvalDataTransform(normalize=stl10_normalization()) # Model. model = SwAV( gpus=1, num_samples=dm.num_unlabeled_samples, dataset="stl10", batch_size=batch_size ) # Fit. trainer = pl.Trainer(gpus=2, accelerator="ddp", precision=16) trainer.fit(model, datamodule=dm) #-------------------- # ImageNet pretrained model: weight_path = "https://pl-bolts-weights.s3.us-east-2.amazonaws.com/swav/bolts_swav_imagenet/swav_imagenet.ckpt" #weight_path = "https://pl-bolts-weights.s3.us-east-2.amazonaws.com/swav/swav_imagenet/swav_imagenet.pth.tar" # STL-10 pretrained model: #weight_path = "https://pl-bolts-weights.s3.us-east-2.amazonaws.com/swav/checkpoints/swav_stl10.pth.tar" swav = SwAV.load_from_checkpoint(weight_path, strict=True) swav.freeze()
def cli_main():
from pl_bolts.callbacks.ssl_online import SSLOnlineEvaluator
from pl_bolts.datamodules import CIFAR10DataModule, ImagenetDataModule, STL10DataModule
from pl_bolts.models.self_supervised.swav.transforms import SwAVEvalDataTransform, SwAVTrainDataTransform
parser = ArgumentParser()
# model args
parser = SwAV.add_model_specific_args(parser)
args = parser.parse_args()
if args.dataset == 'stl10':
dm = STL10DataModule(data_dir=args.data_dir,
batch_size=args.batch_size,
num_workers=args.num_workers)
dm.train_dataloader = dm.train_dataloader_mixed
dm.val_dataloader = dm.val_dataloader_mixed
args.num_samples = dm.num_unlabeled_samples
args.maxpool1 = False
normalization = stl10_normalization()
elif args.dataset == 'cifar10':
args.batch_size = 2
args.num_workers = 0
dm = CIFAR10DataModule(data_dir=args.data_dir,
batch_size=args.batch_size,
num_workers=args.num_workers)
args.num_samples = dm.num_samples
args.maxpool1 = False
args.first_conv = False
normalization = cifar10_normalization()
# cifar10 specific params
args.size_crops = [32, 16]
args.nmb_crops = [2, 1]
args.gaussian_blur = False
elif args.dataset == 'imagenet':
args.maxpool1 = True
args.first_conv = True
normalization = imagenet_normalization()
args.size_crops = [224, 96]
args.nmb_crops = [2, 6]
args.min_scale_crops = [0.14, 0.05]
args.max_scale_crops = [1., 0.14]
args.gaussian_blur = True
args.jitter_strength = 1.
args.batch_size = 64
args.num_nodes = 8
args.gpus = 8 # per-node
args.max_epochs = 800
args.optimizer = 'lars'
args.learning_rate = 4.8
args.final_lr = 0.0048
args.start_lr = 0.3
args.nmb_prototypes = 3000
args.online_ft = True
dm = ImagenetDataModule(data_dir=args.data_dir,
batch_size=args.batch_size,
num_workers=args.num_workers)
args.num_samples = dm.num_samples
args.input_height = dm.size()[-1]
else:
raise NotImplementedError(
"other datasets have not been implemented till now")
dm.train_transforms = SwAVTrainDataTransform(
normalize=normalization,
size_crops=args.size_crops,
nmb_crops=args.nmb_crops,
min_scale_crops=args.min_scale_crops,
max_scale_crops=args.max_scale_crops,
gaussian_blur=args.gaussian_blur,
jitter_strength=args.jitter_strength)
dm.val_transforms = SwAVEvalDataTransform(
normalize=normalization,
size_crops=args.size_crops,
nmb_crops=args.nmb_crops,
min_scale_crops=args.min_scale_crops,
max_scale_crops=args.max_scale_crops,
gaussian_blur=args.gaussian_blur,
jitter_strength=args.jitter_strength)
# swav model init
model = SwAV(**args.__dict__)
online_evaluator = None
if args.online_ft:
# online eval
online_evaluator = SSLOnlineEvaluator(
drop_p=0.,
hidden_dim=None,
z_dim=args.hidden_mlp,
num_classes=dm.num_classes,
dataset=args.dataset,
)
lr_monitor = LearningRateMonitor(logging_interval="step")
model_checkpoint = ModelCheckpoint(save_last=True,
save_top_k=1,
monitor='val_loss')
callbacks = [model_checkpoint, online_evaluator
] if args.online_ft else [model_checkpoint]
callbacks.append(lr_monitor)
trainer = Trainer(
max_epochs=args.max_epochs,
max_steps=None if args.max_steps == -1 else args.max_steps,
gpus=args.gpus,
num_nodes=args.num_nodes,
distributed_backend='ddp' if args.gpus > 1 else None,
sync_batchnorm=True if args.gpus > 1 else False,
precision=32 if args.fp32 else 16,
callbacks=callbacks,
fast_dev_run=args.fast_dev_run)
trainer.fit(model, datamodule=dm)
def cli_main():
from pl_bolts.callbacks.ssl_online import SSLOnlineEvaluator
from pl_bolts.models.self_supervised.swav.transforms import SwAVTrainDataTransform, SwAVEvalDataTransform
from pl_bolts.datamodules import STL10DataModule, CIFAR10DataModule
parser = ArgumentParser()
# model args
parser = SwAV.add_model_specific_args(parser)
args = parser.parse_args()
if args.dataset == 'stl10':
dm = STL10DataModule(data_dir=args.data_path,
batch_size=args.batch_size,
num_workers=args.num_workers)
dm.train_dataloader = dm.train_dataloader_mixed
dm.val_dataloader = dm.val_dataloader_mixed
args.num_samples = dm.num_unlabeled_samples
args.maxpool1 = False
normalization = stl10_normalization()
elif args.dataset == 'cifar10':
args.batch_size = 2
args.num_workers = 0
dm = CIFAR10DataModule(data_dir=args.data_path,
batch_size=args.batch_size,
num_workers=args.num_workers)
args.num_samples = dm.num_samples
args.maxpool1 = False
args.first_conv = False
normalization = cifar10_normalization()
# cifar10 specific params
args.size_crops = [32, 16]
args.nmb_crops = [2, 1]
args.gaussian_blur = False
else:
raise NotImplementedError(
"other datasets have not been implemented till now")
dm.train_transforms = SwAVTrainDataTransform(
normalize=stl10_normalization(),
size_crops=args.size_crops,
nmb_crops=args.nmb_crops,
min_scale_crops=args.min_scale_crops,
max_scale_crops=args.max_scale_crops,
gaussian_blur=args.gaussian_blur,
jitter_strength=args.jitter_strength)
dm.val_transforms = SwAVEvalDataTransform(
normalize=stl10_normalization(),
size_crops=args.size_crops,
nmb_crops=args.nmb_crops,
min_scale_crops=args.min_scale_crops,
max_scale_crops=args.max_scale_crops,
gaussian_blur=args.gaussian_blur,
jitter_strength=args.jitter_strength)
# swav model init
model = SwAV(**args.__dict__)
online_evaluator = None
if args.online_ft:
# online eval
online_evaluator = SSLOnlineEvaluator(drop_p=0.,
hidden_dim=None,
z_dim=args.hidden_mlp,
num_classes=dm.num_classes,
dataset=args.dataset)
trainer = pl.Trainer(
max_epochs=args.max_epochs,
max_steps=None if args.max_steps == -1 else args.max_steps,
gpus=args.gpus,
distributed_backend='ddp' if args.gpus > 1 else None,
sync_batchnorm=True if args.gpus > 1 else False,
precision=32 if args.fp32 else 16,
callbacks=[online_evaluator] if args.online_ft else None,
fast_dev_run=args.fast_dev_run)
trainer.fit(model, dm)
SwAVTrainDataTransform, SwAVEvalDataTransform
)
from pl_bolts.transforms.dataset_normalizations import stl10_normalization
# data
batch_size = 128
dm = STL10DataModule(data_dir='.', batch_size=batch_size, num_workers=8)
dm.train_dataloader = dm.train_dataloader_mixed
dm.val_dataloader = dm.val_dataloader_mixed
dm.train_transforms = SwAVTrainDataTransform(
normalize=stl10_normalization()
)
dm.val_transforms = SwAVEvalDataTransform(
normalize=stl10_normalization()
)
# model
model = SwAV(
lars_wrapper=True,
online_ft=True,
gpus=1,
learning_rate=1e-3,
num_samples=dm.num_unlabeled_samples,
gaussian_blur=True,
queue_length=0,
dataset='stl10',
jitter_strength=1.0,
batch_size=batch_size,
nmb_prototypes=512,