def init_log(self,
data_bunch: db.VideoDataBunch = None,
model: nn.Module = None,
criterion: nn.Module = None,
optimizer: optim.Adam = None,
lr_scheduler: lrs.MultiStepLR = None):
self.print_options()
if self.opts.debug:
self.log(str(data_bunch))
self.log(str(model))
self.log(str(criterion))
self.log(str(optimizer))
self.log(str(lr_scheduler.state_dict() if lr_scheduler else None))
def train_general(args):
args.optimizer = 'Adam'
args.n_classes = 2
args.batch_size = 8
# os.environ["CUDA_VISIBLE_DEVICES"] = args.gpus
# print(args.model_name)
# print(args.test)
if args.model_name == 'FCNet':
model = FCNet(args).cuda()
model = torch.nn.DataParallel(model)
if args.optimizer == 'SGD':
optimizer = SGD(model.parameters(),
.1,
weight_decay=5e-4,
momentum=.99)
elif args.optimizer == 'Adam':
optimizer = Adam(model.parameters(), .1, weight_decay=5e-4)
criterion = cross_entropy2d
scheduler = MultiStepLR(optimizer, [100, 200, 400, 800, 3200], .1)
elif args.model_name == 'CENet':
model = CE_Net_(args).cuda()
model = torch.nn.DataParallel(model)
if args.optimizer == 'SGD':
optimizer = SGD(model.parameters(),
.1,
weight_decay=5e-4,
momentum=.99)
scheduler = MultiStepLR(optimizer, [100, 200, 400, 800, 3200], .1)
elif args.optimizer == 'Adam':
optimizer = Adam(model.parameters(), .001, weight_decay=5e-4)
scheduler = MultiStepLR(optimizer, [400, 3200], .1)
# criterion = cross_entropy2d
criterion = DiceLoss()
# scheduler = MultiStepLR(optimizer, [100, 200, 400, 800, 3200], .1)
start_iter = 0
if args.model_path is not None:
if os.path.isfile(args.model_path):
checkpoint = torch.load(args.model_path)
model.load_state_dict(checkpoint["model_state"])
optimizer.load_state_dict(checkpoint["optimizer_state"])
scheduler.load_state_dict(checkpoint["scheduler_state"])
start_iter = checkpoint["epoch"]
else:
print('Unable to load {}'.format(args.model_name))
train_loader, valid_loader = get_loaders(args)
try:
os.mkdir('logs/')
except:
pass
try:
os.mkdir('results/')
except:
pass
try:
os.mkdir('results/' + args.model_name)
except:
pass
writer = SummaryWriter(log_dir='logs/')
best = -100.0
i = start_iter
flag = True
running_metrics_val = Acc_Meter()
val_loss_meter = averageMeter()
time_meter = averageMeter()
# while i <= args.niter and flag:
while i <= 300000 and flag:
for (images, labels) in train_loader:
i += 1
start_ts = time.time()
scheduler.step()
model.train()
images = images.cuda()
labels = labels.cuda()
optimizer.zero_grad()
outputs = model(images)
loss = criterion(input=outputs, target=labels)
loss.backward()
optimizer.step()
time_meter.update(time.time() - start_ts)
# if (i + 1) % cfg["training"]["print_interval"] == 0:
if (i + 1) % 50 == 0:
fmt_str = "Iter [{:d}/{:d}] Loss: {:.4f} Time/Image: {:.4f}"
print_str = fmt_str.format(
i + 1,
300000,
loss.item(),
time_meter.avg / args.batch_size,
)
print(print_str)
# logger.info(print_str)
# writer.add_scalar("loss/train_loss", loss.item(), i + 1)
# time_meter.reset()
# if (i + 1) % cfg["training"]["val_interval"] == 0 or (i + 1) == cfg["training"]["train_iters"]:
if (i + 1) % 500 == 0 or (i + 1) == 300000:
model.eval()
with torch.no_grad():
for i_val, (images_val,
labels_val) in tqdm(enumerate(valid_loader)):
images_val = images_val.cuda() # to(device)
labels_val = labels_val.cuda() # to(device)
outputs = model(images_val)
# val_loss = loss_fn(input=outputs, target=labels_val)
val_loss = criterion(input=outputs, target=labels_val)
pred = outputs.data.max(1)[1].cpu().numpy()
gt = labels_val.data.cpu().numpy()
running_metrics_val.update(gt, pred)
val_loss_meter.update(val_loss.item())
# writer.add_scalar("loss/val_loss", val_loss_meter.avg, i + 1)
print("Iter %d Loss: %.4f" % (i + 1, val_loss_meter.avg))
results = running_metrics_val.get_acc()
for k, v in results.items():
writer.add_scalar(k, v, i + 1)
print(results)
val_loss_meter.reset()
running_metrics_val.reset()
if results['cls_acc'] >= best:
best = results['cls_acc']
state = {
"epoch": i + 1,
"model_state": model.state_dict(),
"optimizer_state": optimizer.state_dict(),
"scheduler_state": scheduler.state_dict(),
"best": best,
}
save_path = os.path.join(
"results/{}/results_{}_best_model.pkl".format(
args.model_name, i + 1), )
torch.save(state, save_path)
if (i + 1) == 300000:
flag = False
break
writer.close()
def main():
os.environ['CUDA_VISIBLE_DEVICES'] = args.gpu
cudnn.benchmark = True
start_epoch = args.start_epoch
lr_decay_step = list(map(int, args.lr_decay_step.split(',')))
# Data loading
print_logger.info('=> Preparing data..')
loader = import_module('data.' + args.dataset).Data(args)
num_classes = 0
if args.dataset in ['cifar10']:
num_classes = 10
model = eval(args.block_type + 'ResNet56_od')(
groups=args.group_num,
expansion=args.expansion,
num_stu=args.num_stu,
num_classes=num_classes).cuda()
if len(args.gpu) > 1:
device_id = []
for i in range((len(args.gpu) + 1) // 2):
device_id.append(i)
model = torch.nn.DataParallel(model, device_ids=device_id)
best_prec = 0.0
if not model:
print_logger.info("Model arch Error")
return
print_logger.info(model)
# Define loss function (criterion) and optimizer
criterion = nn.CrossEntropyLoss()
optimizer = optim.SGD(model.parameters(),
lr=args.lr,
momentum=args.momentum,
weight_decay=args.weight_decay)
scheduler = MultiStepLR(optimizer,
milestones=lr_decay_step,
gamma=args.lr_decay_factor)
# Optionally resume from a checkpoint
resume = args.resume
if resume:
print('=> Loading checkpoint {}'.format(resume))
checkpoint = torch.load(resume)
state_dict = checkpoint['state_dict']
if args.adjust_ckpt:
new_state_dict = {
k.replace('module.', ''): v
for k, v in state_dict.items()
}
else:
new_state_dict = state_dict
if args.start_epoch == 0:
start_epoch = checkpoint['epoch']
best_prec = checkpoint['best_prec']
model.load_state_dict(new_state_dict)
optimizer.load_state_dict(checkpoint['optimizer'])
scheduler.load_state_dict(checkpoint['scheduler'])
print('=> Continue from epoch {}...'.format(start_epoch))
if args.test_only:
test_prec = test(args, loader.loader_test, model)
print('=> Test Prec@1: {:.2f}'.format(test_prec[0]))
return
record_top5 = 0.
for epoch in range(start_epoch, args.epochs):
scheduler.step(epoch)
train_loss, train_prec = train(args, loader.loader_train, model,
criterion, optimizer, epoch)
test_prec = test(args, loader.loader_test, model, epoch)
is_best = best_prec < test_prec[0]
if is_best:
record_top5 = test_prec[1]
best_prec = max(test_prec[0], best_prec)
state = {
'state_dict': model.state_dict(),
'test_prec': test_prec[0],
'best_prec': best_prec,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
'epoch': epoch + 1
}
if epoch % args.save_freq == 0 or is_best:
ckpt.save_model(state, epoch + 1, is_best)
print_logger.info("=>Best accuracy {:.3f}, {:.3f}".format(
best_prec, record_top5))
def train(train_loop_func, logger, args):
if args.amp:
amp_handle = amp.init(enabled=args.fp16)
# Check that GPUs are actually available
use_cuda = not args.no_cuda
# Setup multi-GPU if necessary
args.distributed = False
if 'WORLD_SIZE' in os.environ:
args.distributed = int(os.environ['WORLD_SIZE']) > 1
if args.distributed:
torch.cuda.set_device(args.local_rank)
torch.distributed.init_process_group(backend='nccl',
init_method='env://')
args.N_gpu = torch.distributed.get_world_size()
else:
args.N_gpu = 1
if args.seed is None:
args.seed = np.random.randint(1e4)
if args.distributed:
args.seed = (args.seed + torch.distributed.get_rank()) % 2**32
print("Using seed = {}".format(args.seed))
torch.manual_seed(args.seed)
np.random.seed(seed=args.seed)
# Setup data, defaults
dboxes = dboxes300_coco()
encoder = Encoder(dboxes)
cocoGt = get_coco_ground_truth(args)
train_loader = get_train_loader(args, args.seed - 2**31)
val_dataset = get_val_dataset(args)
val_dataloader = get_val_dataloader(val_dataset, args)
ssd300 = SSD300(backbone=args.backbone)
args.learning_rate = args.learning_rate * args.N_gpu * (args.batch_size /
32)
start_epoch = 0
iteration = 0
loss_func = Loss(dboxes)
if use_cuda:
ssd300.cuda()
loss_func.cuda()
if args.fp16 and not args.amp:
ssd300 = network_to_half(ssd300)
if args.distributed:
ssd300 = DDP(ssd300)
optimizer = torch.optim.SGD(tencent_trick(ssd300),
lr=args.learning_rate,
momentum=args.momentum,
weight_decay=args.weight_decay)
scheduler = MultiStepLR(optimizer=optimizer,
milestones=args.multistep,
gamma=0.1)
if args.fp16:
if args.amp:
optimizer = amp_handle.wrap_optimizer(optimizer)
else:
optimizer = FP16_Optimizer(optimizer, static_loss_scale=128.)
if args.checkpoint is not None:
if os.path.isfile(args.checkpoint):
load_checkpoint(ssd300, args.checkpoint)
checkpoint = torch.load(args.checkpoint,
map_location=lambda storage, loc: storage.
cuda(torch.cuda.current_device()))
start_epoch = checkpoint['epoch']
iteration = checkpoint['iteration']
scheduler.load_state_dict(checkpoint['scheduler'])
ssd300.load_state_dict(checkpoint['model'])
optimizer.load_state_dict(checkpoint['optimizer'])
else:
print('Provided checkpoint is not path to a file')
return
inv_map = {v: k for k, v in val_dataset.label_map.items()}
total_time = 0
if args.mode == 'evaluation':
acc = evaluate(ssd300, val_dataloader, cocoGt, encoder, inv_map, args)
if args.local_rank == 0:
print('Model precision {} mAP'.format(acc))
return
mean, std = generate_mean_std(args)
for epoch in range(start_epoch, args.epochs):
start_epoch_time = time.time()
scheduler.step()
iteration = train_loop_func(ssd300, loss_func, epoch, optimizer,
train_loader, val_dataloader, encoder,
iteration, logger, args, mean, std)
end_epoch_time = time.time() - start_epoch_time
total_time += end_epoch_time
if args.local_rank == 0:
logger.update_epoch_time(epoch, end_epoch_time)
if epoch in args.evaluation:
acc = evaluate(ssd300, val_dataloader, cocoGt, encoder, inv_map,
args)
if args.local_rank == 0:
logger.update_epoch(epoch, acc)
if args.save and args.local_rank == 0:
print("saving model...")
obj = {
'epoch': epoch + 1,
'iteration': iteration,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
'label_map': val_dataset.label_info
}
if args.distributed:
obj['model'] = ssd300.module.state_dict()
else:
obj['model'] = ssd300.state_dict()
torch.save(obj, './models/epoch_{}.pt'.format(epoch))
train_loader.reset()
print('total training time: {}'.format(total_time))
def train(train_loop_func, logger, args):
# Check that GPUs are actually available
use_cuda = not args.no_cuda
train_samples = 118287
# Setup multi-GPU if necessary
args.distributed = False
if 'WORLD_SIZE' in os.environ:
args.distributed = int(os.environ['WORLD_SIZE']) > 1
if args.distributed:
torch.cuda.set_device(args.local_rank)
torch.distributed.init_process_group(backend='smddp', init_method='env://')
args.N_gpu = torch.distributed.get_world_size()
else:
args.N_gpu = 1
if args.seed is None:
args.seed = np.random.randint(1e4)
if args.distributed:
args.seed = (args.seed + torch.distributed.get_rank()) % 2**32
print("Using seed = {}".format(args.seed))
torch.manual_seed(args.seed)
torch.cuda.manual_seed(args.seed)
np.random.seed(seed=args.seed)
# Setup data, defaults
dboxes = dboxes300_coco()
encoder = Encoder(dboxes)
cocoGt = get_coco_ground_truth(args)
train_loader = get_train_loader(args, args.seed - 2**31)
val_dataset = get_val_dataset(args)
val_dataloader = get_val_dataloader(val_dataset, args)
ssd300 = SSD300(backbone=ResNet(args.backbone, args.backbone_path))
args.learning_rate = args.learning_rate * args.N_gpu * (args.batch_size / 32)
start_epoch = 0
iteration = 0
loss_func = Loss(dboxes)
if use_cuda:
ssd300.cuda()
loss_func.cuda()
optimizer = torch.optim.SGD(tencent_trick(ssd300), lr=args.learning_rate,
momentum=args.momentum, weight_decay=args.weight_decay)
scheduler = MultiStepLR(optimizer=optimizer, milestones=args.multistep, gamma=0.1)
if args.amp:
ssd300, optimizer = amp.initialize(ssd300, optimizer, opt_level='O2')
if args.distributed:
ssd300 = DDP(ssd300)
if args.checkpoint is not None:
if os.path.isfile(args.checkpoint):
load_checkpoint(ssd300.module if args.distributed else ssd300, args.checkpoint)
checkpoint = torch.load(args.checkpoint,
map_location=lambda storage, loc: storage.cuda(torch.cuda.current_device()))
start_epoch = checkpoint['epoch']
iteration = checkpoint['iteration']
scheduler.load_state_dict(checkpoint['scheduler'])
optimizer.load_state_dict(checkpoint['optimizer'])
else:
print('Provided checkpoint is not path to a file')
return
inv_map = {v: k for k, v in val_dataset.label_map.items()}
total_time = 0
if args.mode == 'evaluation':
acc = evaluate(ssd300, val_dataloader, cocoGt, encoder, inv_map, args)
if args.local_rank == 0:
print('Model precision {} mAP'.format(acc))
return
mean, std = generate_mean_std(args)
for epoch in range(start_epoch, args.epochs):
start_epoch_time = time.time()
scheduler.step()
iteration = train_loop_func(ssd300, loss_func, epoch, optimizer, train_loader, val_dataloader, encoder, iteration,
logger, args, mean, std)
end_epoch_time = time.time() - start_epoch_time
total_time += end_epoch_time
if torch.distributed.get_rank() == 0:
throughput = train_samples / end_epoch_time
logger.update_epoch_time(epoch, end_epoch_time)
logger.update_throughput_speed(epoch, throughput)
if epoch in args.evaluation:
acc = evaluate(ssd300, val_dataloader, cocoGt, encoder, inv_map, args)
if args.save and args.local_rank == 0:
print("saving model...")
obj = {'epoch': epoch + 1,
'iteration': iteration,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
'label_map': val_dataset.label_info}
if args.distributed:
obj['model'] = ssd300.module.state_dict()
else:
obj['model'] = ssd300.state_dict()
save_path = os.path.join(args.save, f'epoch_{epoch}.pt')
torch.save(obj, save_path)
logger.log('model path', save_path)
train_loader.reset()
if torch.distributed.get_rank() == 0:
DLLogger.log((), { 'Total training time': '%.2f' % total_time + ' secs' })
logger.log_summary()
model_state_path = os.path.join(
Path.MODEL_DIR, 'densenet161_noisy_gpu_{}.tar'.format(args.gpu))
for epoch in range(MAX_ITERATIONS):
model.train()
for idx, ((x1, y1), (x2, y2)) in enumerate(zip(focus_dl, train_dl)):
optimizer.zero_grad()
x1, y1 = x1.float().cuda(), y1.float().cuda()
x2, y2 = x2.float().cuda(), y2.float().cuda()
x2, y2 = mixup_data(x2, y2, x2, y2, alpha=alpha)
out2 = model(x2)
out1 = model(x1)
loss2 = criterion(out2, y2)
loss1 = criterion(out1, y1)
loss = w1[epoch] * loss1 + w2[epoch] * loss2
loss.backward()
optimizer.step()
scheduler.step()
model_state = {
"model_name": 'freesound',
"optimizer": optimizer.state_dict(),
"scheduler": scheduler.state_dict(),
"state_dict": model.state_dict()
}
torch.save(model_state, model_state_path)
model_state = torch.load(model_state_path)
model.load_state_dict(model_state["state_dict"])
def main():
if not torch.cuda.is_available():
raise Exception("need gpu to train network!")
torch.manual_seed(0)
torch.cuda.manual_seed_all(0)
cudnn.benchmark = True
cudnn.enabled = True
logger = get_logger(__name__, Config.log)
Config.gpus = torch.cuda.device_count()
logger.info("use {} gpus".format(Config.gpus))
config = {
key: value
for key, value in Config.__dict__.items() if not key.startswith("__")
}
logger.info(f"args: {config}")
start_time = time.time()
# dataset and dataloader
logger.info("start loading data")
train_transform = transforms.Compose([
transforms.RandomResizedCrop(224),
transforms.RandomHorizontalFlip(),
transforms.ToTensor(),
transforms.Normalize(mean=[0.485, 0.456, 0.406],
std=[0.229, 0.224, 0.225]),
])
train_dataset = ImageFolder(Config.train_dataset_path, train_transform)
train_loader = DataLoader(
train_dataset,
batch_size=Config.batch_size,
shuffle=True,
num_workers=Config.num_workers,
pin_memory=True,
)
val_transform = transforms.Compose([
transforms.Resize(256),
transforms.CenterCrop(224),
transforms.ToTensor(),
transforms.Normalize(mean=[0.485, 0.456, 0.406],
std=[0.229, 0.224, 0.225]),
])
val_dataset = ImageFolder(Config.val_dataset_path, val_transform)
val_loader = DataLoader(
val_dataset,
batch_size=Config.batch_size,
num_workers=Config.num_workers,
pin_memory=True,
)
logger.info("finish loading data")
# network
net = ChannelDistillResNet1834(Config.num_classes, Config.dataset_type)
net = nn.DataParallel(net).cuda()
# loss and optimizer
criterion = []
for loss_item in Config.loss_list:
loss_name = loss_item["loss_name"]
loss_type = loss_item["loss_type"]
if "kd" in loss_type:
criterion.append(losses.__dict__[loss_name](loss_item["T"]).cuda())
else:
criterion.append(losses.__dict__[loss_name]().cuda())
optimizer = SGD(net.parameters(),
lr=Config.lr,
momentum=0.9,
weight_decay=1e-4)
scheduler = MultiStepLR(optimizer, milestones=[30, 60, 90], gamma=0.1)
# only evaluate
if Config.evaluate:
# load best model
if not os.path.isfile(Config.evaluate):
raise Exception(
f"{Config.evaluate} is not a file, please check it again")
logger.info("start evaluating")
logger.info(f"start resuming model from {Config.evaluate}")
checkpoint = torch.load(Config.evaluate,
map_location=torch.device("cpu"))
net.load_state_dict(checkpoint["model_state_dict"])
prec1, prec5 = validate(val_loader, net)
logger.info(
f"epoch {checkpoint['epoch']:0>3d}, top1 acc: {prec1:.2f}%, top5 acc: {prec5:.2f}%"
)
return
start_epoch = 1
# resume training
if os.path.exists(Config.resume):
logger.info(f"start resuming model from {Config.resume}")
checkpoint = torch.load(Config.resume,
map_location=torch.device("cpu"))
start_epoch += checkpoint["epoch"]
net.load_state_dict(checkpoint["model_state_dict"])
optimizer.load_state_dict(checkpoint["optimizer_state_dict"])
scheduler.load_state_dict(checkpoint["scheduler_state_dict"])
logger.info(
f"finish resuming model from {Config.resume}, epoch {checkpoint['epoch']}, "
f"loss: {checkpoint['loss']:3f}, lr: {checkpoint['lr']:.6f}, "
f"top1_acc: {checkpoint['acc']}%, loss {checkpoint['loss']}%")
if not os.path.exists(Config.checkpoints):
os.makedirs(Config.checkpoints)
logger.info("start training")
best_acc = 0.
for epoch in range(start_epoch, Config.epochs + 1):
prec1, prec5, loss = train(train_loader, net, criterion, optimizer,
scheduler, epoch, logger)
logger.info(
f"train: epoch {epoch:0>3d}, top1 acc: {prec1:.2f}%, top5 acc: {prec5:.2f}%"
)
prec1, prec5 = validate(val_loader, net)
logger.info(
f"val: epoch {epoch:0>3d}, top1 acc: {prec1:.2f}%, top5 acc: {prec5:.2f}%"
)
# remember best prec@1 and save checkpoint
torch.save(
{
"epoch": epoch,
"acc": prec1,
"loss": loss,
"lr": scheduler.get_lr()[0],
"model_state_dict": net.state_dict(),
"optimizer_state_dict": optimizer.state_dict(),
"scheduler_state_dict": scheduler.state_dict(),
}, os.path.join(Config.checkpoints, "latest.pth"))
if prec1 > best_acc:
shutil.copyfile(os.path.join(Config.checkpoints, "latest.pth"),
os.path.join(Config.checkpoints, "best.pth"))
best_acc = prec1
training_time = (time.time() - start_time) / 3600
logger.info(
f"finish training, best acc: {best_acc:.2f}%, total training time: {training_time:.2f} hours"
)
def main():
args = get_cli_args()
print('Will save to ' + args.output_dir)
if not os.path.exists(args.output_dir):
os.makedirs(args.output_dir)
with open(os.path.join(args.output_dir, 'cmdline.txt'), 'w') as f:
f.write(" ".join([
"'" + a + "'" if (len(a) == 0 or a[0] != '-') else a
for a in sys.argv
]))
set_seed(args.seed)
device = torch.device(args.device)
writer = SummaryWriter(args.output_dir)
train_dataset, test_dataset = create_tough_dataset(
args,
fold_nr=args.cvfold,
n_folds=args.num_folds,
seed=args.seed,
exclude_Vertex_from_train=args.db_exclude_vertex,
exclude_Prospeccts_from_train=args.db_exclude_prospeccts)
logger.info('Train set size: %d, test set size: %d', len(train_dataset),
len(test_dataset))
# Create model and optimizer (or resume pre-existing)
if args.resume != '':
if args.resume == 'RESUME':
args.resume = args.output_dir + '/model.pth.tar'
model, optimizer, scheduler = resume(args, train_dataset, device)
else:
model = create_model(args, train_dataset, device)
if args.input_normalization:
model.set_input_scaler(
estimate_scaler(args, train_dataset, nsamples=200))
optimizer = create_optimizer(args, model)
scheduler = MultiStepLR(optimizer,
milestones=args.lr_steps,
gamma=args.lr_decay)
############
def train():
model.train()
loader = torch.utils.data.DataLoader(train_dataset,
batch_size=args.batch_size //
args.batch_parts,
num_workers=args.nworkers,
shuffle=True,
drop_last=True,
worker_init_fn=set_worker_seed)
if logging.getLogger().getEffectiveLevel() > logging.DEBUG:
loader = tqdm(loader, ncols=100)
loss_buffer, loss_stabil_buffer, pos_dist_buffer, neg_dist_buffer = [], [], [], []
t0 = time.time()
for bidx, batch in enumerate(loader):
if 0 < args.max_train_samples < bidx * args.batch_size // args.batch_parts:
break
t_loader = 1000 * (time.time() - t0)
inputs = batch['inputs'].to(
device) # dimensions: batch_size x (4 or 2) x 24 x 24 x 24
targets = batch['targets'].to(device)
if bidx % args.batch_parts == 0:
optimizer.zero_grad()
t0 = time.time()
outputs = model(inputs.view(-1, *inputs.shape[2:]))
outputs = outputs.view(*inputs.shape[:2], -1)
loss_joint, loss_match, loss_stabil, pos_dist, neg_dist = compute_loss(
args, outputs, targets, True)
loss_joint.backward()
if bidx % args.batch_parts == args.batch_parts - 1:
if args.batch_parts > 1:
for p in model.parameters():
p.grad.data.div_(args.batch_parts)
optimizer.step()
t_trainer = 1000 * (time.time() - t0)
loss_buffer.append(loss_match.item())
loss_stabil_buffer.append(loss_stabil.item(
) if isinstance(loss_stabil, torch.Tensor) else loss_stabil)
pos_dist_buffer.extend(pos_dist.cpu().numpy().tolist())
neg_dist_buffer.extend(neg_dist.cpu().numpy().tolist())
logger.debug(
'Batch loss %f, Loader time %f ms, Trainer time %f ms.',
loss_buffer[-1], t_loader, t_trainer)
t0 = time.time()
ret = {
'loss': np.mean(loss_buffer),
'loss_stabil': np.mean(loss_stabil_buffer),
'pos_dist': np.mean(pos_dist_buffer),
'neg_dist': np.mean(neg_dist_buffer)
}
return ret
############
def test():
model.eval()
loader = torch.utils.data.DataLoader(test_dataset,
batch_size=args.batch_size //
args.batch_parts,
num_workers=args.nworkers,
worker_init_fn=set_worker_seed)
if logging.getLogger().getEffectiveLevel() > logging.DEBUG:
loader = tqdm(loader, ncols=100)
loss_buffer, loss_stabil_buffer, pos_dist_buffer, neg_dist_buffer = [], [], [], []
with torch.no_grad():
for bidx, batch in enumerate(loader):
if 0 < args.max_test_samples < bidx * args.batch_size // args.batch_parts:
break
inputs = batch['inputs'].to(device)
targets = batch['targets'].to(device)
outputs = model(inputs.view(-1, *inputs.shape[2:]))
outputs = outputs.view(*inputs.shape[:2], -1)
loss_joint, loss_match, loss_stabil, pos_dist, neg_dist = compute_loss(
args, outputs, targets, False)
loss_buffer.append(loss_match.item())
loss_stabil_buffer.append(loss_stabil.item(
) if isinstance(loss_stabil, torch.Tensor) else loss_stabil)
pos_dist_buffer.extend(pos_dist.cpu().numpy().tolist())
neg_dist_buffer.extend(neg_dist.cpu().numpy().tolist())
return {
'loss': np.mean(loss_buffer),
'loss_stabil': np.mean(loss_stabil_buffer),
'pos_dist': np.mean(pos_dist_buffer),
'neg_dist': np.mean(neg_dist_buffer)
}
############
# Training loop
for epoch in range(args.start_epoch, args.epochs):
print(f'Epoch {epoch}/{args.epochs} ({args.output_dir}):')
scheduler.step()
train_stats = train()
for k, v in train_stats.items():
writer.add_scalar('train/' + k, v, epoch)
print(
f"-> Train distances: p {train_stats['pos_dist']}, n {train_stats['neg_dist']}, \tLoss: {train_stats['loss']}"
)
if (epoch + 1) % args.test_nth_epoch == 0 or epoch + 1 == args.epochs:
test_stats = test()
for k, v in test_stats.items():
writer.add_scalar('test/' + k, v, epoch)
print(
f"-> Test distances: p {test_stats['pos_dist']}, n {test_stats['neg_dist']}, \tLoss: {test_stats['loss']}"
)
torch.save(
{
'epoch': epoch + 1,
'args': args,
'state_dict': model.state_dict(),
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict()
}, os.path.join(args.output_dir, 'model.pth.tar'))
if math.isnan(train_stats['loss']):
break
def main():
# random.seed(0)
# torch.manual_seed(0)
# torch.backends.cudnn.deterministic = True
# torch.backends.cudnn.benchmark = False
# np.random.seed(0)
# torch.cuda.manual_seed(0)
# set all hyperparameters
network_name = 'WRN_40_2'
num_epochs = 35
batch_size = 1
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
n_retrain_epochs = 40
trials = [0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.85, 0.9]
lr = 3e-4
opt = "Adam"
use_temp = False
use_steps = False
# set paths
checkpointPath = './GNN_model/CIFAR10_checkpoints/CP__num_e_{}__retrain_e_{}__lr_{}__opt_{}__useTemp_{}__useSteps_{}__epoch_{}.pt'.format(num_epochs, n_retrain_epochs, lr, opt, use_temp, use_steps, '{}')
continue_train = False
checkpointLoadPath = './GNN_model/CIFAR10_checkpoints/CP__num_e_{}__retrain_e_{}__lr_{}__opt_{}__useTemp_{}__useSteps_{}__epoch_{}.pt'.format(num_epochs, n_retrain_epochs, lr, opt, use_temp, use_steps, '20')
# get GNN path
info = networks_data.get(network_name)
trained_model_path = info.get('trained_GNN_path').replace('.pt', '___num_e_{}__retrain_e_{}__lr_{}__opt_{}__useTemp_{}__useSteps_{}.pt'.format(num_epochs, n_retrain_epochs, lr, opt, use_temp, use_steps))
# declare GNN model
model = GNNPrunningNet(in_channels=6, out_channels=128).to(device)
if opt == "Adam":
optimizer = torch.optim.Adam(model.parameters(), lr=lr)
else:
# lr = 0.1
optimizer = torch.optim.SGD(model.parameters(), lr=lr, momentum=0.9, nesterov=True, weight_decay=5e-4)
scheduler = MultiStepLR(optimizer, milestones=[int(elem*num_epochs) for elem in [0.3, 0.6, 0.8]], gamma=0.2)
crit = GNN_prune_loss
# declate TensorBoard writer
summary_path = '{}-num_e_{}__retrain_e_{}__lr_{}__opt_{}__useTemp_{}__useSteps_{}/training'.format(network_name, num_epochs, n_retrain_epochs, lr, opt, use_temp, use_steps)
writer = SummaryWriter(summary_path)
root = info.get('root')
net_graph_path = info.get('graph_path')
sd_path = info.get('sd_path')
net = info.get('network')
orig_net_loss = info.get('orig_net_loss')
isWRN = (network_name == "WRN_40_2")
train_dataset = GraphDataset(root, network_name, isWRN, net_graph_path)
train_loader = DataLoader(train_dataset, batch_size=batch_size)
orig_net = net().to(device)
orig_net.load_state_dict(torch.load(sd_path, map_location=device))
model.train()
dataset_name = info.get('dataset_name')
network_train_data = datasets_train.get(dataset_name)
print("Start training")
if continue_train == True:
cp = torch.load(checkpointLoadPath, map_location=device)
trained_epochs = cp['epoch'] + 1
sd = cp['model_state_dict']
model.load_state_dict(sd)
op_sd = cp['optimizer_state_dict']
optimizer.load_state_dict(op_sd)
else:
trained_epochs = 0
loss_all = 0.0
data_all = 0.0
sparse_all = 0.0
if use_temp == True:
T = 1.0
if trained_epochs > 0:
T = np.power(2, np.floor(trained_epochs / int(num_epochs/3)))
for epoch in range(trained_epochs, num_epochs):
for data in train_loader:
data = data.to(device)
optimizer.zero_grad()
output = model(data)
if use_temp == True:
# Use temperature
nom = torch.pow((torch.exp(torch.tensor(T, device=device))), output)
dom = torch.pow((torch.exp(torch.tensor(T, device=device))), output) + torch.pow((torch.exp(torch.tensor(T, device=device))), (1-output))
output = nom/dom
# continue as usual
sparse_term, data_term, data_grad = crit(output, orig_net, orig_net_loss, network_name, network_train_data, device, gamma1=10, gamma2=0.1)
if use_steps == True:
if epoch % 3 == 0: # do 2 steps in data direction then 1 in sparsity
sparse_term.backward()
else:
output.backward(data_grad)
else:
sparse_term.backward(retain_graph=True)
output.backward(data_grad)
data_all += data.num_graphs * data_term.item()
sparse_all += data.num_graphs * sparse_term.item()
loss_all += data_all + sparse_all
optimizer.step()
print("epoch {}. total loss is: {}".format(epoch+1, (data_term.item() + sparse_term.item()) / len(train_dataset)))
if opt != "Adam":
scheduler.step()
if use_temp == True:
# increase temperature 3 times
if (epoch+1) % int(num_epochs/3) == 0:
T *= 2
if epoch % 10 == 9:
writer.add_scalars('Learning curve', {
'loss data term': data_all/10,
'loss sparsity term': sparse_all/10,
'training loss': loss_all/10
}, epoch+1)
# save checkpoint
if opt == "Adam":
torch.save({
'epoch': epoch,
'model_state_dict': model.state_dict(),
'optimizer_state_dict': optimizer.state_dict(),
'loss': loss_all,
}, checkpointPath.format(epoch+1))
else:
torch.save({
'epoch': epoch,
'model_state_dict': model.state_dict(),
'optimizer_state_dict': optimizer.state_dict(),
'loss': loss_all,
'scheduler_state_dict': scheduler.state_dict(),
}, checkpointPath.format(epoch+1))
loss_all = 0.0
data_all = 0.0
sparse_all = 0.0
torch.save(model.state_dict(), trained_model_path)
print("Start evaluating")
model.load_state_dict(torch.load(trained_model_path, map_location=device))
model.eval()
network_val_data = datasets_test.get(dataset_name)
val_data_loader = torch.utils.data.DataLoader(network_val_data, batch_size=1024, shuffle=False, num_workers=8)
for trial, p_factor in enumerate(trials):
with torch.no_grad():
for data in train_loader:
data = data.to(device)
pred = model(data)
prunedNet = getPrunedNet(pred, orig_net, network_name, prune_factor=p_factor).to(device)
# Train the pruned network
prunedNet.train()
data_train_loader = torch.utils.data.DataLoader(network_train_data, batch_size=256, shuffle=False, num_workers=8)
criterion = nn.CrossEntropyLoss()
optimizer = torch.optim.SGD(prunedNet.parameters(), lr=0.1, momentum=0.9, nesterov=True, weight_decay=5e-4)
scheduler = MultiStepLR(optimizer, milestones=[int(elem*n_retrain_epochs) for elem in [0.3, 0.6, 0.8]], gamma=0.2)
for epoch in range (n_retrain_epochs):
for i, (images, labels) in enumerate(data_train_loader):
images, labels = images.to(device), labels.to(device)
optimizer.zero_grad()
output = prunedNet(images)
loss = criterion(output, labels)
if i % 30 == 0:
print('Train - Epoch %d, Batch: %d, Loss: %f' % (epoch+1, i, loss.detach().cpu().item()))
loss.backward()
optimizer.step()
scheduler.step()
# Evaluate the pruned net
with torch.no_grad():
total_correct = 0
cuda_time = 0.0
cpu_time = 0.0
for i, (images, labels) in enumerate(val_data_loader):
images, labels = images.to(device), labels.to(device)
with torch.autograd.profiler.profile(use_cuda=True) as prof:
output = prunedNet(images)
cuda_time += sum([item.cuda_time for item in prof.function_events])
cpu_time += sum([item.cpu_time for item in prof.function_events])
pred = output.detach().max(1)[1]
total_correct += pred.eq(labels.view_as(pred)).sum()
p_acc = float(total_correct) / len(network_val_data)
p_num_params = gnp(prunedNet)
p_cuda_time = cuda_time / len(network_val_data)
p_cpu_time = cpu_time / len(network_val_data)
print("The pruned network for prune factor {} accuracy is: {}".format(p_factor, p_acc))
print("The pruned network number of parameters is: {}".format(p_num_params))
print("The pruned network cuda time is: {}".format(p_cuda_time))
print("The pruned network cpu time is: {}".format(p_cpu_time))
# Evaluate the original net
with torch.no_grad():
total_correct = 0
cuda_time = 0.0
cpu_time = 0.0
for i, (images, labels) in enumerate(val_data_loader):
images, labels = images.to(device), labels.to(device)
with torch.autograd.profiler.profile(use_cuda=True) as prof:
output = orig_net(images)
cuda_time += sum([item.cuda_time for item in prof.function_events])
cpu_time += sum([item.cpu_time for item in prof.function_events])
pred = output.detach().max(1)[1]
total_correct += pred.eq(labels.view_as(pred)).sum()
o_acc = float(total_correct) / len(network_val_data)
o_num_params = gnp(orig_net)
o_cuda_time = cuda_time / len(network_val_data)
o_cpu_time = cpu_time / len(network_val_data)
print("The original network accuracy is: {}".format(o_acc))
print("The original network number of parameters is: {}".format(o_num_params))
print("The original network cuda time is: {}".format(o_cuda_time))
print("The original network cpu time is: {}".format(o_cpu_time))
writer.add_scalars('Network accuracy', {
'original': o_acc,
'pruned': p_acc
}, 100*p_factor)
writer.add_scalars('Network number of parameters', {
'original': o_num_params,
'pruned': p_num_params
}, 100*p_factor)
writer.add_scalars('Network GPU time', {
'original': o_cuda_time,
'pruned': p_cuda_time
}, 100*p_factor)
writer.add_scalars('Network CPU time', {
'original': o_cpu_time,
'pruned': p_cpu_time
}, 100*p_factor)
writer.close()
class ImageNetAgent:
def __init__(self, config, rank=-1):
self.rank = rank
self.config = config
# Training environment
if config['train']['mode'] == 'parallel':
gpu_id = config['train']['gpus'][rank]
self.device = "cuda:{}".format(gpu_id)
else:
self.device = config['train']['device'] if torch.cuda.is_available(
) else "cpu"
# Dataset
train_transform = T.Compose([
T.RandomResizedCrop(
(config['dataset']['size'], config['dataset']['size'])),
T.RandomHorizontalFlip(),
T.ToTensor(),
T.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225])
])
valid_transform = T.Compose([
T.Resize(256),
T.CenterCrop(
(config['dataset']['size'], config['dataset']['size'])),
T.ToTensor(),
T.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225])
])
train_dataset = ImageFolder(config['dataset']['train']['root'],
transform=train_transform)
valid_dataset = ImageFolder(config['dataset']['valid']['root'],
transform=valid_transform)
# Dataloader
if config['train']['mode'] == 'parallel':
self.sampler = DistributedSampler(train_dataset)
self.train_loader = DataLoader(
train_dataset,
sampler=self.sampler,
batch_size=config['dataloader']['batch_size'],
num_workers=config['dataloader']['num_workers'],
pin_memory=True,
shuffle=False)
else:
self.train_loader = DataLoader(
train_dataset,
batch_size=config['dataloader']['batch_size'],
num_workers=config['dataloader']['num_workers'],
pin_memory=True,
shuffle=True)
self.valid_loader = DataLoader(
valid_dataset,
batch_size=config['dataloader']['batch_size'],
num_workers=config['dataloader']['num_workers'],
pin_memory=True,
shuffle=False)
# Model
if config['model']['name'] == "resnet18":
model_cls = resnet18
else:
model_cls = get_model_cls(config['model']['name'])
model = model_cls(**config['model']['kwargs'])
if config['train']['mode'] == 'parallel':
model = model.to(self.device)
self.model = DDP(model, device_ids=[config['train']['gpus'][rank]])
# checkpoint = torch.load("run/darknet53_dist/best.pth")
# self.model.load_state_dict(checkpoint['model'])
else:
self.model = model.to(self.device)
# Optimizer
self.optimizer = optim.SGD(
self.model.parameters(),
lr=config['optimizer']['lr'],
momentum=config['optimizer']['momentum'],
weight_decay=config['optimizer']['weight_decay'])
# Scheduler
self.scheduler = MultiStepLR(
self.optimizer,
milestones=config['scheduler']['milestones'],
gamma=config['scheduler']['gamma'])
# Loss funciton
self.criterion = nn.CrossEntropyLoss().to(self.device)
# Tensorboard
self.log_dir = osp.join(config['train']['log_dir'],
config['train']['exp_name'])
if ((self.rank == 0 and config['train']['mode'] == 'parallel')
or self.rank < 0):
self.writer = SummaryWriter(logdir=self.log_dir)
# Dynamic state
self.current_epoch = -1
self.current_loss = 10000
def resume(self):
checkpoint_path = osp.join(self.log_dir, 'best.pth')
if self.config['train']['mode'] == 'parallel':
master_gpu_id = self.config['train']['gpus'][0]
map_location = {'cuda:{}'.format(master_gpu_id): self.device}
checkpoint = torch.load(checkpoint_path, map_location=map_location)
else:
checkpoint = torch.load(checkpoint_path)
# Load pretrained model
self.model.load_state_dict(checkpoint['model'])
self.optimizer.load_state_dict(checkpoint['optimizer'])
self.scheduler.load_state_dict(checkpoint['scheduler'])
# Resume to training state
self.current_loss = checkpoint['current_loss']
self.current_epoch = checkpoint['current_epoch']
print("Resume Training at epoch {}".format(self.current_epoch))
def train(self):
for epoch in range(self.current_epoch + 1,
self.config['train']['n_epochs']):
self.current_epoch = epoch
if self.config['train']['mode'] == 'parallel':
self.sampler.set_epoch(self.current_epoch)
self.train_one_epoch()
self.validate()
self.scheduler.step()
else:
self.train_one_epoch()
self.validate()
self.scheduler.step()
def train_one_epoch(self):
losses = []
running_samples = 0
running_corrects = 0
self.model.train()
loop = tqdm(
self.train_loader,
desc=
(f"[{self.rank}] Train Epoch {self.current_epoch}/{self.config['train']['n_epochs']}"
f"- LR: {self.optimizer.param_groups[0]['lr']:.3f}"),
leave=True)
for batch_idx, (imgs, labels) in enumerate(loop):
imgs = imgs.to(self.device, non_blocking=True)
labels = labels.to(self.device, non_blocking=True)
outputs = self.model(imgs)
loss = self.criterion(outputs, labels)
self.optimizer.zero_grad()
loss.backward()
self.optimizer.step()
preds = torch.max(outputs.data, 1)[1]
corrects = float(torch.sum(preds == labels.data))
running_samples += imgs.size(0)
running_corrects += corrects
losses.append(loss.item())
loop.set_postfix(loss=sum(losses) / len(losses))
if self.rank <= 0:
epoch_loss = sum(losses) / len(losses)
epoch_acc = running_corrects / running_samples
self.writer.add_scalar("Train Loss", epoch_loss,
self.current_epoch)
self.writer.add_scalar("Train Acc", epoch_acc, self.current_epoch)
print("Epoch {}:{}, Train Loss: {:.2f}, Train Acc: {:.2f}".format(
self.current_epoch, self.config['train']['n_epochs'],
epoch_loss, epoch_acc))
def validate(self):
losses = []
running_samples = 0
running_corrects = 0
self.model.eval()
loop = tqdm(
self.valid_loader,
desc=
(f"Valid Epoch {self.current_epoch}/{self.config['train']['n_epochs']}"
f"- LR: {self.optimizer.param_groups[0]['lr']:.3f}"),
leave=True)
with torch.no_grad():
for batch_idx, (imgs, labels) in enumerate(loop):
imgs = imgs.to(self.device, non_blocking=True)
labels = labels.to(self.device, non_blocking=True)
outputs = self.model(imgs)
loss = self.criterion(outputs, labels)
preds = torch.max(outputs.data, 1)[1]
corrects = float(torch.sum(preds == labels.data))
running_samples += imgs.size(0)
running_corrects += corrects
losses.append(loss.item())
loop.set_postfix(loss=sum(losses) / len(losses))
if self.rank <= 0:
epoch_loss = sum(losses) / len(losses)
epoch_acc = running_corrects / running_samples
print("Epoch {}:{}, Valid Loss: {:.2f}, Valid Acc: {:.2f}".format(
self.current_epoch, self.config['train']['n_epochs'],
epoch_loss, epoch_acc))
self.writer.add_scalar("Valid Loss", epoch_loss,
self.current_epoch)
self.writer.add_scalar("Valid Acc", epoch_acc, self.current_epoch)
if epoch_loss < self.current_loss:
self.current_loss = epoch_loss
self._save_checkpoint()
def finalize(self):
pass
def _save_checkpoint(self):
checkpoints = {
'model': self.model.state_dict(),
'optimizer': self.optimizer.state_dict(),
'scheduler': self.scheduler.state_dict(),
'current_epoch': self.current_epoch,
'current_loss': self.current_loss
}
checkpoint_path = osp.join(self.log_dir, 'best.pth')
torch.save(checkpoints, checkpoint_path)
print("Save checkpoint to '{}'".format(checkpoint_path))
def main():
# Views the training images and displays the distance on anchor-negative and anchor-positive
# print the experiment configuration
print('\nCurrent time is \33[91m{}\33[0m'.format(str(time.asctime())))
print('Parsed options: {}'.format(vars(args)))
print('Number of Classes: {}\n'.format(len(train_dir.speakers)))
# instantiate
# model and initialize weights
model = ExporingResNet(layers=[3, 4, 6, 3], num_classes=1211)
assert os.path.isfile(args.resume)
print('=> loading checkpoint {}'.format(args.resume))
checkpoint = torch.load(args.resume)
filtered = {
k: v
for k, v in checkpoint['state_dict'].items()
if 'num_batches_tracked' not in k
}
model.load_state_dict(filtered)
model.fc2 = nn.Linear(args.embedding_size, len(train_dir.speakers))
# criterion = AngularSoftmax(in_feats=args.embedding_size,
# num_classes=len(train_dir.classes))
if args.cuda:
model.cuda()
fc2_params = list(map(id, model.fc2.parameters()))
base_params = filter(lambda p: id(p) not in fc2_params, model.parameters())
optimizer = torch.optim.SGD(
[{
'params': base_params
}, {
'params': model.fc2.parameters(),
'lr': args.lr * 10
}],
lr=args.lr,
momentum=args.momentum,
)
# optimizer2 = create_optimizer(model.fc2.parameters(), args.optimizer, **opt_kwargs)
scheduler = MultiStepLR(optimizer, milestones=[8], gamma=0.1)
start = 0
if args.save_init:
check_path = '{}/checkpoint_{}.pth'.format(args.check_path, start)
torch.save(
{
'epoch': start,
'state_dict': model.state_dict(),
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict()
}, check_path)
# optionally resume from a checkpoint
start += args.start_epoch
print('Start epoch is : ' + str(start))
end = start + args.epochs
# pdb.set_trace()
train_loader = torch.utils.data.DataLoader(train_dir,
batch_size=args.batch_size,
shuffle=True,
**kwargs)
valid_loader = torch.utils.data.DataLoader(valid_dir,
batch_size=args.batch_size,
shuffle=False,
**kwargs)
test_loader = torch.utils.data.DataLoader(test_part,
batch_size=args.test_batch_size,
shuffle=False,
**kwargs)
criterion = nn.CrossEntropyLoss().cuda()
for epoch in range(start, end):
# pdb.set_trace()
for param_group in optimizer.param_groups:
print(
'\n\33[1;34m Current \'{}\' learning rate is {}.\33[0m'.format(
args.optimizer, param_group['lr']))
train(train_loader, model, optimizer, criterion, scheduler, epoch)
test(test_loader, valid_loader, model, epoch)
scheduler.step()
# break
writer.close()
end = time.time()
log_2 = 'Using {} sec for epoch {}'.format(start - end, i + 1)
cu.write_log(log_dir, log_2)
## validation
vali_loss, recall, precision, accuracy = validation(
model, validation_dataloader, loss, gpu, optimizer, validation_dataset)
log_3 = '----------------Recall for epoch {} is : {}'.format(i + 1, recall)
log_4 = '----------------Precision for epoch {} is : {}'.format(
i + 1, precision)
log_5 = '----------------Accuracy for epoch {} is {}'.format(
i + 1, accuracy)
log_6 = '----------------Validation loss for epoch {} is {}'.format(
i + 1, vali_loss)
cu.write_log(log_dir, log_3)
cu.write_log(log_dir, log_4)
cu.write_log(log_dir, log_5)
cu.write_log(log_dir, log_6)
if vali_loss < vali_loss_p:
vali_loss_p = vali_loss # give loss new value
checkpoint = {
'model_state': model.state_dict(),
'criterion_state': loss.state_dict(),
'optimizer_state': optimizer.state_dict(),
'scheduler_state': scheduler.state_dict(),
'epochs': i + 1
}
torch.save(checkpoint, checkpoint_dir + 'model' + '.pth')
class Trainner(object):
def __init__(self, opt, saver, summary):
self.opt = opt
self.saver = saver
self.summary = summary
self.global_steps = 0
self.setup_models()
print('initialize trainner')
def setup_models(self):
self.criteriasMSE = nn.MSELoss()
self.model = EDSeg(self.opt).cuda(self.opt.device)
self.optimizer = torch.optim.Adam(self.model.parameters(), lr=self.opt.lr)
self.schedule = MultiStepLR(self.optimizer, milestones=[1600], gamma=self.opt.gamma)
if self.opt.device_count > 1:
self.model = nn.DataParallel(self.model, device_ids=self.opt.devices)
def train_iter(self, images, labels):
self.model.train()
output = self.model(images)
loss = self.criteriasMSE(output, images)
self.optimizer.zero_grad()
loss.backward()
self.optimizer.step()
self.schedule.step()
if self.global_steps % self.opt.v_freq == 0:
lr = self.optimizer.param_groups[0]['lr']
self.summary.add_scalar('loss', loss.item(), self.global_steps)
self.summary.add_scalar('lr', lr, self.global_steps)
self.summary.train_image(images, output, labels, self.global_steps)
def train_epoch(self, dataloader):
iterator = tqdm(dataloader,
leave=True,
dynamic_ncols=True)
self.dataset_len = len(dataloader)
for i, data in enumerate(iterator):
iterator.set_description(f'Epoch[{self.epoch}/{self.opt.epochs}|{self.global_steps}]')
self.global_steps = self.epoch * self.dataset_len + i
if isinstance(data, tuple):
images = data[0]
labels = data[1]
else:
labels = None
images = data
images = images.to(self.opt.device)
labels = labels.to(self.opt.device) if labels else None
self.train_iter(images, labels)
def train(self, train_dataloader, valid_dataloader):
self.epoch = 0
while self.epoch < self.opt.epochs:
self.train_epoch(train_dataloader)
self.validate(valid_dataloader)
self.epoch += 1
def validate(self, dataloader):
self.model.eval()
errs = []
output = None
for data in dataloader:
if isinstance(data, tuple):
images = data[0]
labels = data[1]
else:
labels = None
images = data
images = images.to(self.opt.device)
labels = labels.to(self.opt.device) if labels else None
output = self.model(images)
err = self.criteriasMSE(output, images)
errs.append(err)
mean_err = torch.tensor(errs).mean()
self.summary.add_scalar('validate_error', mean_err, self.global_steps)
self.summary.val_image(images, output, labels, self.global_steps)
self.save_checkpoint(mean_err)
def save_checkpoint(self, err):
state = {'epoch': self.epoch,
'err': err,
'model': self.model.state_dict(),
'optimizer': self.optimizer.state_dict(),
'schedule': self.schedule.state_dict()}
self.saver.save_checkpoint(state)
def load_checkpoint(self, state):
self.model.load_state_dict(state['model'])
self.optimizer.load_state_dict(state['optimizer'])
self.schedule.load_state_dict(state['schedule'])
self.epoch = state['epoch']
def resume(self):
if self.opt.resume:
if self.opt.resume_best:
state = self.saver.load_best()
elif self.opt.resume_latest:
state = self.saver.load_latest()
elif self.opt.resume_epoch is not None:
state = self.saver.load_epoch(self.opt.resume_epoch)
else:
raise RuntimeError('resume settings error, please check your config file.')
self.load_checkpoint(state)
else:
print('resume not enabled, pass')
class Processor():
"""Processor for Skeleton-based Action Recgnition"""
def __init__(self, arg):
self.arg = arg
self.save_arg()
self._init_dist_pytorch(backend='nccl',
world_size=torch.cuda.device_count())
self.load_model()
self.load_param_groups()
self.load_optimizer()
self.load_lr_scheduler()
self.load_data()
self.global_step = 0
self.lr = self.arg.base_lr
self.best_acc = 0
self.best_acc_epoch = 0
if self.arg.half:
self.print_log('*************************************')
self.print_log('*** Using Half Precision Training ***')
self.print_log('*************************************')
self.model, self.optimizer = apex.amp.initialize(
self.model,
self.optimizer,
opt_level=f'O{self.arg.amp_opt_level}')
if self.arg.amp_opt_level != 1:
self.print_log(
'[WARN] nn.DataParallel is not yet supported by amp_opt_level != "O1"'
)
self.runner()
def _init_dist_pytorch(self, backend, **kwargs):
rank = int(os.environ['RANK'])
num_gpus = torch.cuda.device_count()
torch.cuda.set_device(rank % num_gpus)
dist.init_process_group(backend=backend, **kwargs)
def load_model(self):
Model = import_class(self.arg.model)
# Copy model file and main
shutil.copy2(inspect.getfile(Model), self.arg.work_dir)
shutil.copy2(os.path.join('.', __file__), self.arg.work_dir)
self._model = Model(**self.arg.model_args).cuda()
self.loss = nn.CrossEntropyLoss().cuda()
self.print_log(
f'Model total number of params: {count_params(self._model)}')
if self.arg.weights:
try:
self.global_step = int(arg.weights[:-3].split('-')[-1])
except:
print('Cannot parse global_step from model weights filename')
self.global_step = 0
self.print_log(f'Loading weights from {self.arg.weights}')
if '.pkl' in self.arg.weights:
with open(self.arg.weights, 'r') as f:
weights = pickle.load(f)
elif '.pth' in self.arg.weights:
weights = torch.load(self.arg.weights)["state_dict"]
weights = OrderedDict([[k.split('network.')[-1],
v.cuda()] for k, v in weights.items()])
else:
weights = torch.load(self.arg.weights)
weights = OrderedDict([[k.split('module.')[-1],
v.cuda()] for k, v in weights.items()])
for w in self.arg.ignore_weights:
if weights.pop(w, None) is not None:
self.print_log(f'Sucessfully Remove Weights: {w}')
else:
self.print_log(f'Can Not Remove Weights: {w}')
if '.pth' in self.arg.weights:
try:
self._model.load_state_dict(weights)
except:
state = self._model.state_dict()
diff = list(
set(state.keys()).difference(set(weights.keys())))
self.print_log('Can not find these weights:')
for d in diff:
self.print_log(' ' + d)
state.update(weights)
self._model.load_state_dict(state)
elif self.arg.weights.endswith(".pt") or self.arg.weights.endswith(
".pkl"):
model_params = self._model.state_dict()
weights['data_bn.weight'] = model_params['data_bn.weight']
weights['data_bn.bias'] = model_params['data_bn.bias']
weights['data_bn.running_mean'] = model_params[
'data_bn.running_mean']
weights['data_bn.running_var'] = model_params[
'data_bn.running_var']
weights['fc.weight'] = model_params['fc.weight']
weights['fc.bias'] = model_params['fc.bias']
weights['gcn3d1.gcn3d.0.gcn3d.1.A_res'] = model_params[
'gcn3d1.gcn3d.0.gcn3d.1.A_res']
weights['gcn3d1.gcn3d.1.gcn3d.1.A_res'] = model_params[
'gcn3d1.gcn3d.1.gcn3d.1.A_res']
weights['sgcn1.0.A_res'] = model_params['sgcn1.0.A_res']
weights['gcn3d2.gcn3d.0.gcn3d.1.A_res'] = model_params[
'gcn3d2.gcn3d.0.gcn3d.1.A_res']
weights['gcn3d2.gcn3d.1.gcn3d.1.A_res'] = model_params[
'gcn3d2.gcn3d.1.gcn3d.1.A_res']
weights['sgcn2.0.A_res'] = model_params['sgcn2.0.A_res']
weights['gcn3d3.gcn3d.0.gcn3d.1.A_res'] = model_params[
'gcn3d3.gcn3d.0.gcn3d.1.A_res']
weights['gcn3d3.gcn3d.1.gcn3d.1.A_res'] = model_params[
'gcn3d3.gcn3d.1.gcn3d.1.A_res']
weights['sgcn3.0.A_res'] = model_params['sgcn3.0.A_res']
weights[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.0.weight'] = model_params[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.0.weight']
weights[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.0.weight'] = model_params[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.0.weight']
weights['sgcn1.0.mlp.layers.0.weight'] = model_params[
'sgcn1.0.mlp.layers.0.weight']
weights[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.0.bias'] = model_params[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.0.bias']
weights[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.1.weight'] = model_params[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.1.weight']
weights[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.1.bias'] = model_params[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.1.bias']
weights[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.1.running_mean'] = model_params[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.1.running_mean']
weights[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.1.running_var'] = model_params[
'gcn3d1.gcn3d.0.gcn3d.1.mlp.layers.1.running_var']
weights['gcn3d1.gcn3d.0.out_conv.weight'] = model_params[
'gcn3d1.gcn3d.0.out_conv.weight']
weights[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.0.bias'] = model_params[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.0.bias']
weights[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.1.weight'] = model_params[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.1.weight']
weights[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.1.bias'] = model_params[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.1.bias']
weights[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.1.running_mean'] = model_params[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.1.running_mean']
weights[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.1.running_var'] = model_params[
'gcn3d1.gcn3d.1.gcn3d.1.mlp.layers.1.running_var']
weights['gcn3d1.gcn3d.1.out_conv.weight'] = model_params[
'gcn3d1.gcn3d.1.out_conv.weight']
model_params.update(weights)
self._model.load_state_dict(model_params, strict=False)
else:
raise "Support *.pth or *.pkl or *.pt pretrain"
print(self.arg.center_loss)
self._model_full = msg3d_with_loss(self._model, self.loss,
self.arg.center_loss)
rank = int(os.environ['RANK'])
# self._model.to(rank)
self._model_full.to(rank)
self.model = MMDistributedDataParallel(self._model_full.cuda())
def load_param_groups(self):
"""
Template function for setting different learning behaviour
(e.g. LR, weight decay) of different groups of parameters
"""
self.param_groups = defaultdict(list)
for name, params in self.model.named_parameters():
self.param_groups['other'].append(params)
self.optim_param_groups = {
'other': {
'params': self.param_groups['other']
}
}
def load_optimizer(self):
params = list(self.optim_param_groups.values())
if self.arg.optimizer == 'SGD':
self.optimizer = optim.SGD(params,
lr=self.arg.base_lr,
momentum=0.9,
nesterov=self.arg.nesterov,
weight_decay=self.arg.weight_decay)
elif self.arg.optimizer == 'Adam':
self.optimizer = optim.Adam(params,
lr=self.arg.base_lr,
weight_decay=self.arg.weight_decay)
else:
raise ValueError('Unsupported optimizer: {}'.format(
self.arg.optimizer))
# Load optimizer states if any
if self.arg.checkpoint is not None:
self.print_log(
f'Loading optimizer states from: {self.arg.checkpoint}')
self.optimizer.load_state_dict(
torch.load(self.arg.checkpoint)['optimizer_states'])
current_lr = self.optimizer.param_groups[0]['lr']
self.print_log(f'Starting LR: {current_lr}')
self.print_log(
f'Starting WD1: {self.optimizer.param_groups[0]["weight_decay"]}'
)
if len(self.optimizer.param_groups) >= 2:
self.print_log(
f'Starting WD2: {self.optimizer.param_groups[1]["weight_decay"]}'
)
def load_lr_scheduler(self):
self.lr_scheduler = MultiStepLR(self.optimizer,
milestones=self.arg.step,
gamma=0.1)
if self.arg.checkpoint is not None:
scheduler_states = torch.load(
self.arg.checkpoint)['lr_scheduler_states']
self.print_log(
f'Loading LR scheduler states from: {self.arg.checkpoint}')
self.lr_scheduler.load_state_dict(scheduler_states)
self.print_log(
f'Starting last epoch: {scheduler_states["last_epoch"]}')
self.print_log(
f'Loaded milestones: {scheduler_states["last_epoch"]}')
def load_data(self):
Feeder = import_class(self.arg.feeder)
self.data_loader = dict()
def worker_seed_fn(worker_id):
# give workers different seeds
return init_seed(self.arg.seed + worker_id + 1)
rank = int(os.environ['RANK'])
world_size = torch.cuda.device_count()
if self.arg.phase == 'train':
dataset_train = Feeder(**self.arg.train_feeder_args)
sampler_train = DistributedSampler(dataset_train,
world_size,
rank,
shuffle=True)
self.data_loader['train'] = torch.utils.data.DataLoader(
dataset=dataset_train,
batch_size=self.arg.batch_size // world_size,
sampler=sampler_train,
shuffle=False,
num_workers=self.arg.num_worker // world_size,
drop_last=True,
worker_init_fn=worker_seed_fn)
dataset_test = Feeder(**self.arg.test_feeder_args)
# sampler_test = DistributedSampler(dataset_test, world_size, rank, shuffle=False)
self.data_loader['test'] = torch.utils.data.DataLoader(
dataset=dataset_test,
batch_size=self.arg.test_batch_size // world_size,
# sampler=sampler_test,
shuffle=False,
num_workers=self.arg.num_worker // world_size,
drop_last=False,
worker_init_fn=worker_seed_fn)
def save_arg(self):
# save arg
arg_dict = vars(self.arg)
if not os.path.exists(self.arg.work_dir):
os.makedirs(self.arg.work_dir, exist_ok=True)
with open(os.path.join(self.arg.work_dir, 'config.yaml'), 'w') as f:
yaml.dump(arg_dict, f)
def print_time(self):
localtime = time.asctime(time.localtime(time.time()))
self.print_log(f'Local current time: {localtime}')
def print_log(self, s, print_time=True):
if print_time:
localtime = time.asctime(time.localtime(time.time()))
s = f'[ {localtime} ] {s}'
print(s)
if self.arg.print_log:
with open(os.path.join(self.arg.work_dir, 'log.txt'), 'a') as f:
print(s, file=f)
def record_time(self):
self.cur_time = time.time()
return self.cur_time
def split_time(self):
split_time = time.time() - self.cur_time
self.record_time()
return split_time
def save_states(self, epoch, states, out_folder, out_name):
out_folder_path = os.path.join(self.arg.work_dir, out_folder)
out_path = os.path.join(out_folder_path, out_name)
os.makedirs(out_folder_path, exist_ok=True)
torch.save(states, out_path)
def save_checkpoint(self, epoch, out_folder='checkpoints'):
state_dict = {
'epoch': epoch,
'optimizer_states': self.optimizer.state_dict(),
'lr_scheduler_states': self.lr_scheduler.state_dict(),
}
checkpoint_name = f'checkpoint-{epoch}-fwbz{self.arg.forward_batch_size}-{int(self.global_step)}.pt'
self.save_states(epoch, state_dict, out_folder, checkpoint_name)
def save_weights(self, epoch, out_folder='weights'):
state_dict = self.model.state_dict()
weights = OrderedDict([[k.split('module.')[-1],
v.cpu()] for k, v in state_dict.items()])
weights_name = f'weights-{epoch}-{int(self.global_step)}.pt'
self.save_states(epoch, weights, out_folder, weights_name)
def runner(self):
def parse_losses(losses):
log_vars = OrderedDict()
for loss_name, loss_value in losses.items():
if isinstance(loss_value, torch.Tensor):
log_vars[loss_name] = loss_value.mean()
elif isinstance(loss_value, list):
log_vars[loss_name] = sum(_loss.mean()
for _loss in loss_value)
else:
raise TypeError(
'{} is not a tensor or list of tensors'.format(
loss_name))
loss = sum(_value for _key, _value in log_vars.items()
if 'loss' in _key)
log_vars['loss'] = loss
for name in log_vars:
log_vars[name] = log_vars[name].item()
return loss, log_vars
def batch_processor(model, data, train_mode):
losses = model(**data)
# losses = model(data)
loss, log_vars = parse_losses(losses)
outputs = dict(loss=loss,
log_vars=log_vars,
num_samples=len(data['batchdata'].data))
return outputs
self.runner = Runner(self.model, batch_processor, self.optimizer,
self.arg.work_dir)
optimizer_config = DistOptimizerHook(
grad_clip=dict(max_norm=20, norm_type=2))
if not "policy" in self.arg.policy:
lr_config = dict(policy='step', step=self.arg.step)
else:
lr_config = dict(**self.arg.policy)
checkpoint_config = dict(interval=5)
log_config = dict(interval=20,
hooks=[
dict(type='TextLoggerHook'),
dict(type='TensorboardLoggerHook')
])
self.runner.register_training_hooks(lr_config, optimizer_config,
checkpoint_config, log_config)
self.runner.register_hook(DistSamplerSeedHook())
Feeder = import_class(self.arg.feeder)
self.runner.register_hook(
DistEvalTopKAccuracyHook(Feeder(**self.arg.test_feeder_args),
interval=self.arg.test_interval,
k=(1, 5)))
def eval(self,
epoch,
save_score=False,
loader_name=['test'],
wrong_file=None,
result_file=None):
# Skip evaluation if too early
if epoch + 1 < self.arg.eval_start:
return
if wrong_file is not None:
f_w = open(wrong_file, 'w')
if result_file is not None:
f_r = open(result_file, 'w')
with torch.no_grad():
self.model = self.model.cuda()
self.model.eval()
self.print_log(f'Eval epoch: {epoch + 1}')
for ln in loader_name:
loss_values = []
score_batches = []
step = 0
process = tqdm(self.data_loader[ln], dynamic_ncols=True)
for batch_idx, (data, label, index) in enumerate(process):
data = data.float().cuda()
label = label.long().cuda()
output = self.model(data)
if isinstance(output, tuple):
output, l1 = output
l1 = l1.mean()
else:
l1 = 0
loss = self.loss(output, label)
score_batches.append(output.data.cpu().numpy())
loss_values.append(loss.item())
_, predict_label = torch.max(output.data, 1)
step += 1
if wrong_file is not None or result_file is not None:
predict = list(predict_label.cpu().numpy())
true = list(label.data.cpu().numpy())
for i, x in enumerate(predict):
if result_file is not None:
f_r.write(str(x) + ',' + str(true[i]) + '\n')
if x != true[i] and wrong_file is not None:
f_w.write(
str(index[i]) + ',' + str(x) + ',' +
str(true[i]) + '\n')
score = np.concatenate(score_batches)
loss = np.mean(loss_values)
accuracy = self.data_loader[ln].dataset.top_k(score, 1)
if accuracy > self.best_acc:
self.best_acc = accuracy
self.best_acc_epoch = epoch + 1
print('Accuracy: ', accuracy, ' model: ', self.arg.work_dir)
if self.arg.phase == 'train' and not self.arg.debug:
self.val_writer.add_scalar('loss', loss, self.global_step)
self.val_writer.add_scalar('loss_l1', l1, self.global_step)
self.val_writer.add_scalar('acc', accuracy, self.global_step)
score_dict = dict(
zip(self.data_loader[ln].dataset.sample_name, score))
self.print_log(
f'\tMean {ln} loss of {len(self.data_loader[ln])} batches: {np.mean(loss_values)}.'
)
for k in self.arg.show_topk:
self.print_log(
f'\tTop {k}: {100 * self.data_loader[ln].dataset.top_k(score, k):.2f}%'
)
if save_score:
with open(
'{}/epoch{}_{}_score.pkl'.format(
self.arg.work_dir, epoch + 1, ln), 'wb') as f:
pickle.dump(score_dict, f)
# Empty cache after evaluation
torch.cuda.empty_cache()
def start(self):
if self.arg.phase == 'train':
self.runner.run([self.data_loader['train']],
workflow=[('train', 1)],
max_epochs=self.arg.num_epoch)
elif self.arg.phase == 'test':
wf = rf = None
if self.arg.weights is None:
raise ValueError('Please appoint --weights.')
self.print_log(f'Model: {self.arg.model}')
self.print_log(f'Weights: {self.arg.weights}')
self.eval(epoch=0,
save_score=self.arg.save_score,
loader_name=['test'],
wrong_file=wf,
result_file=rf)
self.print_log('Done.\n')
def main_worker(train_loader, val_loader, num_classes, args, cifar=False):
global best_acc1
scale_lr_and_momentum(args, cifar=cifar)
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
norm_kwargs = {'mode': args.norm_mode,
'alpha_fwd': args.afwd,
'alpha_bkw': args.abkw,
'ecm': args.ecm,
'gn_num_groups': args.gn_num_groups}
model_kwargs = {'num_classes': num_classes,
'norm_layer': norm_layer,
'norm_kwargs': norm_kwargs,
'cifar': cifar,
'kernel_size': 3 if cifar else 7,
'stride': 1 if cifar else 2,
'padding': 1 if cifar else 3,
'inplanes': 16 if cifar else 64}
if cifar:
model_kwargs['depth'] = args.depth
args.arch = 'resnetD'
# create model
if args.pretrained:
print("=> using pre-trained model '{}'".format(args.arch))
model = models.__dict__[args.arch](pretrained=True,
**model_kwargs).to(device)
else:
print("=> creating model '{}'".format(args.arch))
model = models.__dict__[args.arch](**model_kwargs).to(device)
print(model)
# define loss function (criterion) and optimizer
criterion = nn.CrossEntropyLoss().to(device)
optimizer = torch.optim.SGD(get_parameter_groups(model, cifar=cifar),
args.lr, momentum=args.momentum,
weight_decay=args.weight_decay)
scheduler = MultiStepLR(optimizer,
milestones=args.lr_milestones,
gamma=args.lr_multiplier)
# optionally resume from a checkpoint
if args.resume:
if os.path.isfile(args.resume):
print("=> loading checkpoint '{}'".format(args.resume))
checkpoint = torch.load(args.resume)
args.start_epoch = checkpoint['epoch']
best_acc1 = checkpoint['best_acc1']
model.load_state_dict(checkpoint['state_dict'])
optimizer.load_state_dict(checkpoint['optimizer'])
scheduler.load_state_dict(checkpoint['scheduler'])
print("=> loaded checkpoint '{}' (epoch {})"
.format(args.resume, checkpoint['epoch']))
else:
print("=> no checkpoint found at '{}'".format(args.resume))
cudnn.benchmark = False if args.seed else True
if args.evaluate:
validate(val_loader, model, criterion, device, args)
return
for epoch in range(args.start_epoch, args.epochs):
if epoch: scheduler.step()
# train for one epoch
train(train_loader, model, criterion, optimizer, epoch, device, args)
# evaluate on validation set
acc1 = validate(val_loader, model, criterion, device, args)
# remember best acc@1 and save checkpoint
is_best = acc1 > best_acc1
best_acc1 = max(acc1, best_acc1)
save_checkpoint({
'epoch': epoch + 1,
'arch': args.arch,
'state_dict': model.state_dict(),
'best_acc1': best_acc1,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
}, is_best, args)
def train(train_loop_func, logger, args):
# Check that GPUs are actually available
use_cuda = not args.no_cuda
# Setup multi-GPU if necessary
args.distributed = False
if 'WORLD_SIZE' in os.environ:
args.distributed = int(os.environ['WORLD_SIZE']) > 1
if args.distributed:
torch.cuda.set_device(args.local_rank)
torch.distributed.init_process_group(backend='nccl',
init_method='env://')
args.N_gpu = torch.distributed.get_world_size()
else:
args.N_gpu = 1
if args.seed is None:
args.seed = np.random.randint(1e4)
if args.distributed:
args.seed = (args.seed + torch.distributed.get_rank()) % 2**32
print("Using seed = {}".format(args.seed))
torch.manual_seed(args.seed)
np.random.seed(seed=args.seed)
torch.multiprocessing.set_sharing_strategy('file_system')
# Setup data, defaults
dboxes = dboxes300_coco()
encoder = Encoder(dboxes)
cocoGt = get_coco_ground_truth(args)
#82783
# train_loader = get_train_loader(args, args.seed - 2**31, 118287)
# target_loader = get_target_loader(args, args.seed - 2**31, 118287)
train_loader = get_train_loader(args, args.seed - 2**31, 5000)
target_loader = get_target_loader(args, args.seed - 2**31, 5000)
val_dataset = get_val_dataset(args)
val_dataloader = get_val_dataloader(val_dataset, args)
ssd300 = DASSD300(backbone=ResNet(args.backbone, args.backbone_path))
# ?????args.learning_rate = args.learning_rate * args.N_gpu * ((args.batch_size + args.batch_size // 2) / 32)
args.learning_rate = args.learning_rate * args.N_gpu * (
(args.batch_size + args.batch_size) / 32)
start_epoch = 0
iteration = 0
loss_func = DALoss(dboxes)
da_loss_func = ImageLevelAdaptationLoss()
if use_cuda:
ssd300.cuda()
loss_func.cuda()
da_loss_func.cuda()
optimizer = torch.optim.SGD(tencent_trick(ssd300),
lr=args.learning_rate,
momentum=args.momentum,
weight_decay=args.weight_decay)
scheduler = MultiStepLR(optimizer=optimizer,
milestones=args.multistep,
gamma=0.1)
if args.amp:
ssd300, optimizer = amp.initialize(ssd300, optimizer, opt_level='O2')
if args.distributed:
ssd300 = DDP(ssd300)
if args.checkpoint is not None:
if os.path.isfile(args.checkpoint):
load_checkpoint(ssd300.module if args.distributed else ssd300,
args.checkpoint)
checkpoint = torch.load(args.checkpoint,
map_location=lambda storage, loc: storage.
cuda(torch.cuda.current_device()))
start_epoch = checkpoint['epoch']
iteration = checkpoint['iteration']
scheduler.load_state_dict(checkpoint['scheduler'])
optimizer.load_state_dict(checkpoint['optimizer'])
else:
print('Provided checkpoint is not path to a file')
return
inv_map = {v: k for k, v in val_dataset.label_map.items()}
total_time = 0
if args.mode == 'evaluation':
acc = evaluate(ssd300, val_dataloader, cocoGt, encoder, inv_map, args)
if args.local_rank == 0:
print('Model precision {} mAP'.format(acc))
return
mean, std = generate_mean_std(args)
meters = {
'total': AverageValueMeter(),
'ssd': AverageValueMeter(),
'da': AverageValueMeter()
}
vis = Visualizer(env='da ssd', port=6006)
for epoch in range(start_epoch, args.epochs):
start_epoch_time = time.time()
scheduler.step()
iteration = train_loop_func(ssd300, loss_func, da_loss_func, epoch,
optimizer, train_loader, target_loader,
encoder, iteration, logger, args, mean,
std, meters, vis)
end_epoch_time = time.time() - start_epoch_time
total_time += end_epoch_time
if args.local_rank == 0:
logger.update_epoch_time(epoch, end_epoch_time)
if epoch in args.evaluation:
acc = evaluate(ssd300, val_dataloader, cocoGt, encoder, inv_map,
args)
if args.local_rank == 0:
logger.update_epoch(epoch, acc)
vis.log(acc, win='Evaluation')
if args.save and args.local_rank == 0:
print("saving model...")
obj = {
'epoch': epoch + 1,
'iteration': iteration,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
'label_map': val_dataset.label_info
}
if args.distributed:
obj['model'] = ssd300.module.state_dict()
else:
obj['model'] = ssd300.state_dict()
torch.save(obj, './models/epoch_{}.pt'.format(epoch))
train_loader.reset()
target_loader.reset()
print('total training time: {}'.format(total_time))
def main(opt):
if torch.cuda.is_available():
torch.cuda.manual_seed(123)
else:
torch.manual_seed(123)
train_params = {
"batch_size": opt.batch_size,
"shuffle": True,
"drop_last": False,
"num_workers": opt.num_workers,
"collate_fn": collate_fn
}
eval_params = {
"batch_size": opt.batch_size,
"shuffle": True,
"drop_last": False,
"num_workers": opt.num_workers,
"collate_fn": collate_fn
}
dboxes = generate_dboxes()
model = SSD()
train_set = OIDataset(SimpleTransformer(dboxes), train=True)
train_loader = DataLoader(train_set, **train_params)
val_set = OIDataset(SimpleTransformer(dboxes, eval=True), validation=True)
val_loader = DataLoader(val_set, **eval_params)
encoder = Encoder(dboxes)
opt.lr = opt.lr * (opt.batch_size / 32)
criterion = Loss(dboxes)
optimizer = torch.optim.SGD(model.parameters(),
lr=opt.lr,
momentum=opt.momentum,
weight_decay=opt.weight_decay,
nesterov=True)
scheduler = MultiStepLR(optimizer=optimizer,
milestones=opt.multistep,
gamma=0.1)
if torch.cuda.is_available():
model.cuda()
criterion.cuda()
model = torch.nn.DataParallel(model)
if os.path.isdir(opt.log_path):
shutil.rmtree(opt.log_path)
os.makedirs(opt.log_path)
if not os.path.isdir(opt.save_folder):
os.makedirs(opt.save_folder)
checkpoint_path = os.path.join(opt.save_folder, "SSD.pth")
writer = SummaryWriter(opt.log_path)
if os.path.isfile(checkpoint_path):
checkpoint = torch.load(checkpoint_path)
first_epoch = checkpoint["epoch"] + 1
model.module.load_state_dict(checkpoint["model_state_dict"])
scheduler.load_state_dict(checkpoint["scheduler"])
optimizer.load_state_dict(checkpoint["optimizer"])
else:
first_epoch = 0
for epoch in range(first_epoch, opt.epochs):
train(model, train_loader, epoch, writer, criterion, optimizer,
scheduler)
evaluate(model, val_loader, encoder, opt.nms_threshold)
checkpoint = {
"epoch": epoch,
"model_state_dict": model.module.state_dict(),
"optimizer": optimizer.state_dict(),
"scheduler": scheduler.state_dict()
}
torch.save(checkpoint, checkpoint_path)
def run_resnet(args):
# The Resnet paper states the following transforms are applied on the train set
train_set = datasets.CIFAR100(
"./data/",
train=True,
download=True,
transform=transforms.Compose([
transforms.Normalize( # pre-computed
(0.5071, 0.4865, 0.4409), (0.2673, 0.2564, 0.2762)),
transforms.Pad(4),
transforms.RandomHorizontalFlip(),
transforms.RandomCrop(32),
transforms.ToTensor()
]))
test_set = datasets.CIFAR100(
"./data/",
train=False,
download=True,
transform=transforms.Compose([
transforms.ToTensor(),
transforms.Normalize( # pre-computed
(0.5088, 0.4874, 0.4419), (0.2683, 0.2574, 0.2771))
]))
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.b,
shuffle=True)
test_loader = torch.utils.data.DataLoader(test_set,
batch_size=args.b,
shuffle=True)
checkpoints_dir = "checkpoints/resnet/"
final_dir = 'models/'
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
model = Resnet(3).to(device)
optimizer = optim.SGD(model.parameters(),
lr=0.1,
weight_decay=0.0001,
momentum=0.9)
loss = nn.CrossEntropyLoss()
# learning rate should be decayed at 32k and 64k milestones
scheduler = MultiStepLR(optimizer, milestones=[320, 480], gamma=0.1)
for epoch in range(0, 640):
loss_train = 0.0
for images, labels in train_loader:
images = images.to(device)
labels = labels.to(device)
predictions = model(images)
batch_loss = loss(predictions, labels)
optimizer.zero_grad()
batch_loss.backward()
optimizer.step()
loss_train += batch_loss.item()
print('{} Epoch {}, Training loss {}'.format(
datetime.datetime.now(), epoch + 1,
loss_train / len(train_loader)))
scheduler.step()
if epoch % 100 == 0 or epoch == 0:
checkpoint_path = os.path.join(checkpoints_dir,
'epoch_' + str(epoch) + '.pt')
torch.save(
{
'epoch': epoch,
'model_state_dict': model.state_dict(),
'optimizer_state_dict': optimizer.state_dict(),
'scheduler_state_dict': scheduler.state_dict()
}, checkpoint_path)
model_path = os.path.join(final_dir, 'lenet.pth')
torch.save(model.state_dict(), model_path)
model.eval()
with torch.no_grad():
correct = 0
total = 0
for images, labels in test_loader:
images = images.to(device)
labels = labels.to(device)
outputs = model(images)
_, predicted = torch.max(outputs, dim=1)
total += labels.shape[0]
correct += (predicted == labels).sum().item()
print("Accuracy = {}".format(100 * (correct / total)))
class Learner:
def __init__(self):
self.args = self.parse_command_line()
self.checkpoint_dir, self.logfile, self.checkpoint_path_validation, self.checkpoint_path_final \
= get_log_files(self.args.checkpoint_dir, self.args.resume_from_checkpoint, False)
print_and_log(self.logfile, "Options: %s\n" % self.args)
print_and_log(self.logfile,
"Checkpoint Directory: %s\n" % self.checkpoint_dir)
self.writer = SummaryWriter()
#gpu_device = 'cuda:0'
gpu_device = 'cuda'
self.device = torch.device(
gpu_device if torch.cuda.is_available() else 'cpu')
self.model = self.init_model()
self.train_set, self.validation_set, self.test_set = self.init_data()
self.vd = video_reader.VideoDataset(self.args)
self.video_loader = torch.utils.data.DataLoader(
self.vd, batch_size=1, num_workers=self.args.num_workers)
self.loss = loss
self.accuracy_fn = aggregate_accuracy
if self.args.opt == "adam":
self.optimizer = torch.optim.Adam(self.model.parameters(),
lr=self.args.learning_rate)
elif self.args.opt == "sgd":
self.optimizer = torch.optim.SGD(self.model.parameters(),
lr=self.args.learning_rate)
self.test_accuracies = TestAccuracies(self.test_set)
self.scheduler = MultiStepLR(self.optimizer,
milestones=self.args.sch,
gamma=0.1)
self.start_iteration = 0
if self.args.resume_from_checkpoint:
self.load_checkpoint()
self.optimizer.zero_grad()
def init_model(self):
model = CNN_TRX(self.args)
model = model.to(self.device)
if self.args.num_gpus > 1:
model.distribute_model()
return model
def init_data(self):
train_set = [self.args.dataset]
validation_set = [self.args.dataset]
test_set = [self.args.dataset]
return train_set, validation_set, test_set
"""
Command line parser
"""
def parse_command_line(self):
parser = argparse.ArgumentParser()
parser.add_argument("--dataset",
choices=["ssv2", "kinetics"],
default="ssv2",
help="Dataset to use.")
parser.add_argument("--learning_rate",
"-lr",
type=float,
default=0.001,
help="Learning rate.")
parser.add_argument(
"--tasks_per_batch",
type=int,
default=16,
help="Number of tasks between parameter optimizations.")
parser.add_argument("--checkpoint_dir",
"-c",
default=None,
help="Directory to save checkpoint to.")
parser.add_argument("--test_model_path",
"-m",
default=None,
help="Path to model to load and test.")
parser.add_argument("--training_iterations",
"-i",
type=int,
default=50020,
help="Number of meta-training iterations.")
parser.add_argument("--resume_from_checkpoint",
"-r",
dest="resume_from_checkpoint",
default=False,
action="store_true",
help="Restart from latest checkpoint.")
parser.add_argument("--way",
type=int,
default=5,
help="Way of single dataset task.")
parser.add_argument(
"--shot",
type=int,
default=1,
help="Shots per class for context of single dataset task.")
parser.add_argument("--query_per_class",
type=int,
default=5,
help="Target samples (i.e. queries) per class.")
parser.add_argument("--seq_len",
type=int,
default=8,
help="Frames per video.")
parser.add_argument("--num_workers",
type=int,
default=10,
help="Num dataloader workers.")
parser.add_argument("--method",
choices=["resnet18", "resnet34", "resnet50"],
default="resnet50",
help="method")
parser.add_argument("--trans_linear_out_dim",
type=int,
default=1152,
help="Transformer linear_out_dim")
parser.add_argument("--opt",
choices=["adam", "sgd"],
default="sgd",
help="Optimizer")
parser.add_argument("--trans_dropout",
type=int,
default=0.1,
help="Transformer dropout")
parser.add_argument(
"--save_freq",
type=int,
default=5000,
help="Number of iterations between checkpoint saves.")
parser.add_argument("--img_size",
type=int,
default=224,
help="Input image size to the CNN after cropping.")
parser.add_argument('--temp_set',
nargs='+',
type=int,
help='cardinalities e.g. 2,3 is pairs and triples',
default=[2, 3])
parser.add_argument("--scratch",
choices=["bc", "bp"],
default="bp",
help="Computer to run on")
parser.add_argument("--num_gpus",
type=int,
default=1,
help="Number of GPUs to split the ResNet over")
parser.add_argument("--debug_loader",
default=False,
action="store_true",
help="Load 1 vid per class for debugging")
parser.add_argument("--split",
type=int,
default=3,
help="Dataset split.")
parser.add_argument('--sch',
nargs='+',
type=int,
help='iters to drop learning rate',
default=[1000000])
args = parser.parse_args()
if args.scratch == "bc":
args.scratch = "/mnt/storage/home/tp8961/scratch"
elif args.scratch == "bp":
args.num_gpus = 4
args.num_workers = 5
args.scratch = "/work/tp8961"
if args.checkpoint_dir == None:
print("need to specify a checkpoint dir")
exit(1)
if (args.method == "resnet50") or (args.method == "resnet34"):
args.img_size = 224
if args.method == "resnet50":
args.trans_linear_in_dim = 2048
else:
args.trans_linear_in_dim = 512
if args.dataset == "ssv2":
args.traintestlist = os.path.join(
args.scratch,
"video_datasets/splits/somethingsomethingv2TrainTestlist")
args.path = os.path.join(
args.scratch,
"video_datasets/data/somethingsomethingv2_256x256q5_1.zip")
elif args.dataset == "kinetics":
args.traintestlist = os.path.join(
args.scratch, "video_datasets/splits/kineticsTrainTestlist")
args.path = os.path.join(
args.scratch, "video_datasets/data/kinetics_256q5_1.zip")
return args
def run(self):
config = tf.compat.v1.ConfigProto()
config.gpu_options.allow_growth = True
with tf.compat.v1.Session(config=config) as session:
train_accuracies = []
losses = []
total_iterations = self.args.training_iterations
iteration = self.start_iteration
for task_dict in self.video_loader:
if iteration >= total_iterations:
break
iteration += 1
torch.set_grad_enabled(True)
task_loss, task_accuracy = self.train_task(task_dict)
train_accuracies.append(task_accuracy)
losses.append(task_loss)
# optimize
if ((iteration + 1) % self.args.tasks_per_batch
== 0) or (iteration == (total_iterations - 1)):
self.optimizer.step()
self.optimizer.zero_grad()
self.scheduler.step()
if (iteration + 1) % PRINT_FREQUENCY == 0:
# print training stats
print_and_log(
self.logfile,
'Task [{}/{}], Train Loss: {:.7f}, Train Accuracy: {:.7f}'
.format(iteration + 1, total_iterations,
torch.Tensor(losses).mean().item(),
torch.Tensor(train_accuracies).mean().item()))
train_accuracies = []
losses = []
if ((iteration + 1) % self.args.save_freq
== 0) and (iteration + 1) != total_iterations:
self.save_checkpoint(iteration + 1)
if ((iteration + 1)
in TEST_ITERS) and (iteration + 1) != total_iterations:
accuracy_dict = self.test(session)
self.test_accuracies.print(self.logfile, accuracy_dict)
# save the final model
torch.save(self.model.state_dict(), self.checkpoint_path_final)
self.logfile.close()
def train_task(self, task_dict):
context_images, target_images, context_labels, target_labels, real_target_labels, batch_class_list = self.prepare_task(
task_dict)
model_dict = self.model(context_images, context_labels, target_images)
target_logits = model_dict['logits']
task_loss = self.loss(target_logits, target_labels,
self.device) / self.args.tasks_per_batch
task_accuracy = self.accuracy_fn(target_logits, target_labels)
task_loss.backward(retain_graph=False)
return task_loss, task_accuracy
def test(self, session):
self.model.eval()
with torch.no_grad():
self.video_loader.dataset.train = False
accuracy_dict = {}
accuracies = []
iteration = 0
item = self.args.dataset
for task_dict in self.video_loader:
if iteration >= NUM_TEST_TASKS:
break
iteration += 1
context_images, target_images, context_labels, target_labels, real_target_labels, batch_class_list = self.prepare_task(
task_dict)
model_dict = self.model(context_images, context_labels,
target_images)
target_logits = model_dict['logits']
accuracy = self.accuracy_fn(target_logits, target_labels)
accuracies.append(accuracy.item())
del target_logits
accuracy = np.array(accuracies).mean() * 100.0
confidence = (196.0 * np.array(accuracies).std()) / np.sqrt(
len(accuracies))
accuracy_dict[item] = {
"accuracy": accuracy,
"confidence": confidence
}
self.video_loader.dataset.train = True
self.model.train()
return accuracy_dict
def prepare_task(self, task_dict, images_to_device=True):
context_images, context_labels = task_dict['support_set'][
0], task_dict['support_labels'][0]
target_images, target_labels = task_dict['target_set'][0], task_dict[
'target_labels'][0]
real_target_labels = task_dict['real_target_labels'][0]
batch_class_list = task_dict['batch_class_list'][0]
if images_to_device:
context_images = context_images.to(self.device)
target_images = target_images.to(self.device)
context_labels = context_labels.to(self.device)
target_labels = target_labels.type(torch.LongTensor).to(self.device)
return context_images, target_images, context_labels, target_labels, real_target_labels, batch_class_list
def shuffle(self, images, labels):
"""
Return shuffled data.
"""
permutation = np.random.permutation(images.shape[0])
return images[permutation], labels[permutation]
def save_checkpoint(self, iteration):
d = {
'iteration': iteration,
'model_state_dict': self.model.state_dict(),
'optimizer_state_dict': self.optimizer.state_dict(),
'scheduler': self.scheduler.state_dict()
}
torch.save(
d,
os.path.join(self.checkpoint_dir,
'checkpoint{}.pt'.format(iteration)))
torch.save(d, os.path.join(self.checkpoint_dir, 'checkpoint.pt'))
def load_checkpoint(self):
checkpoint = torch.load(
os.path.join(self.checkpoint_dir, 'checkpoint.pt'))
self.start_iteration = checkpoint['iteration']
self.model.load_state_dict(checkpoint['model_state_dict'])
self.optimizer.load_state_dict(checkpoint['optimizer_state_dict'])
self.scheduler.load_state_dict(checkpoint['scheduler'])
def main(args: argparse.Namespace):
logger = CompleteLogger(args.log, args.phase)
print(args)
if args.seed is not None:
random.seed(args.seed)
torch.manual_seed(args.seed)
cudnn.deterministic = True
warnings.warn('You have chosen to seed training. '
'This will turn on the CUDNN deterministic setting, '
'which can slow down your training considerably! '
'You may see unexpected behavior when restarting '
'from checkpoints.')
cudnn.benchmark = True
# Data loading code
normalize = T.Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225])
train_transform = T.Compose([
T.RandomRotation(args.rotation),
T.RandomResizedCrop(size=args.image_size, scale=args.resize_scale),
T.ColorJitter(brightness=0.25, contrast=0.25, saturation=0.25),
T.GaussianBlur(),
T.ToTensor(), normalize
])
val_transform = T.Compose(
[T.Resize(args.image_size),
T.ToTensor(), normalize])
image_size = (args.image_size, args.image_size)
heatmap_size = (args.heatmap_size, args.heatmap_size)
source_dataset = datasets.__dict__[args.source]
train_source_dataset = source_dataset(root=args.source_root,
transforms=train_transform,
image_size=image_size,
heatmap_size=heatmap_size)
train_source_loader = DataLoader(train_source_dataset,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True,
drop_last=True)
val_source_dataset = source_dataset(root=args.source_root,
split='test',
transforms=val_transform,
image_size=image_size,
heatmap_size=heatmap_size)
val_source_loader = DataLoader(val_source_dataset,
batch_size=args.batch_size,
shuffle=False,
pin_memory=True)
target_dataset = datasets.__dict__[args.target]
train_target_dataset = target_dataset(root=args.target_root,
transforms=train_transform,
image_size=image_size,
heatmap_size=heatmap_size)
train_target_loader = DataLoader(train_target_dataset,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True,
drop_last=True)
val_target_dataset = target_dataset(root=args.target_root,
split='test',
transforms=val_transform,
image_size=image_size,
heatmap_size=heatmap_size)
val_target_loader = DataLoader(val_target_dataset,
batch_size=args.batch_size,
shuffle=False,
pin_memory=True)
print("Source train:", len(train_source_loader))
print("Target train:", len(train_target_loader))
print("Source test:", len(val_source_loader))
print("Target test:", len(val_target_loader))
train_source_iter = ForeverDataIterator(train_source_loader)
train_target_iter = ForeverDataIterator(train_target_loader)
# create model
model = models.__dict__[args.arch](
num_keypoints=train_source_dataset.num_keypoints).to(device)
criterion = JointsMSELoss()
# define optimizer and lr scheduler
optimizer = Adam(model.get_parameters(lr=args.lr))
lr_scheduler = MultiStepLR(optimizer, args.lr_step, args.lr_factor)
# optionally resume from a checkpoint
start_epoch = 0
if args.resume:
checkpoint = torch.load(args.resume, map_location='cpu')
model.load_state_dict(checkpoint['model'])
optimizer.load_state_dict(checkpoint['optimizer'])
lr_scheduler.load_state_dict(checkpoint['lr_scheduler'])
start_epoch = checkpoint['epoch'] + 1
# define visualization function
tensor_to_image = Compose([
Denormalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225]),
ToPILImage()
])
def visualize(image, keypoint2d, name):
"""
Args:
image (tensor): image in shape 3 x H x W
keypoint2d (tensor): keypoints in shape K x 2
name: name of the saving image
"""
train_source_dataset.visualize(
tensor_to_image(image), keypoint2d,
logger.get_image_path("{}.jpg".format(name)))
if args.phase == 'test':
# evaluate on validation set
source_val_acc = validate(val_source_loader, model, criterion, None,
args)
target_val_acc = validate(val_target_loader, model, criterion,
visualize, args)
print("Source: {:4.3f} Target: {:4.3f}".format(source_val_acc['all'],
target_val_acc['all']))
for name, acc in target_val_acc.items():
print("{}: {:4.3f}".format(name, acc))
return
# start training
best_acc = 0
for epoch in range(start_epoch, args.epochs):
logger.set_epoch(epoch)
lr_scheduler.step()
# train for one epoch
train(train_source_iter, train_target_iter, model, criterion,
optimizer, epoch, visualize if args.debug else None, args)
# evaluate on validation set
source_val_acc = validate(val_source_loader, model, criterion, None,
args)
target_val_acc = validate(val_target_loader, model, criterion,
visualize if args.debug else None, args)
# remember best acc and save checkpoint
torch.save(
{
'model': model.state_dict(),
'optimizer': optimizer.state_dict(),
'lr_scheduler': lr_scheduler.state_dict(),
'epoch': epoch,
'args': args
}, logger.get_checkpoint_path(epoch))
if target_val_acc['all'] > best_acc:
shutil.copy(logger.get_checkpoint_path(epoch),
logger.get_checkpoint_path('best'))
best_acc = target_val_acc['all']
print("Source: {:4.3f} Target: {:4.3f} Target(best): {:4.3f}".format(
source_val_acc['all'], target_val_acc['all'], best_acc))
for name, acc in target_val_acc.items():
print("{}: {:4.3f}".format(name, acc))
logger.close()
def main():
start_epoch = 0
best_prec1 = 0.0
seed=np.random.randint(10000)
if seed is not None:
np.random.seed(seed)
torch.manual_seed(seed)
torch.cuda.manual_seed(seed)
if args.gpus is not None:
device = torch.device("cuda:{}".format(args.gpus[0]))
cudnn.benchmark = False
# cudnn.deterministic = True
cudnn.enabled = True
else:
device = torch.device("cpu")
now = datetime.now().strftime('%Y-%m-%d-%H:%M:%S')
if args.mission is not None:
if 'vgg' == args.arch and args.batchnorm:
args.job_dir = f'{args.job_dir}/{args.dataset}/{args.arch}{args.num_layers}_bn/{args.mission}/{now}'
elif 'resnet20' == args.arch:
args.job_dir = f'{args.job_dir}/{args.dataset}/{args.arch}/{args.mission}/{now}'
else:
args.job_dir = f'{args.job_dir}/{args.dataset}/{args.arch}{args.num_layers}/{args.mission}/{now}'
else:
if 'vgg' == args.arch and args.batchnorm:
args.job_dir = f'{args.job_dir}/{args.dataset}/{args.arch}{args.num_layers}_bn/{now}'
else:
args.job_dir = f'{args.job_dir}/{args.dataset}/{args.arch}{args.num_layers}/{now}'
_make_dir(args.job_dir)
ckpt = utils.checkpoint(args)
print_logger = utils.get_logger(os.path.join(args.job_dir, "logger.log"))
utils.print_params(vars(args), print_logger.info)
writer_train = SummaryWriter(args.job_dir +'/run/train')
writer_test = SummaryWriter(args.job_dir+ '/run/test')
## hyperparameters settings ##
n_layers = (args.num_layers - 2) * 2
unit_k_bits = int(args.k_bits)
kbits_list = [unit_k_bits for i in range(n_layers)]
print_logger.info(f'k_bits_list {kbits_list}')
# Data loading
print('=> Preparing data..')
if args.dataset in ['cifar10', 'cifar100','mnist']:
IMAGE_SIZE = 32
elif args.dataset == 'tinyimagenet':
IMAGE_SIZE = 64
else:
IMAGE_SIZE = 224
if args.dataset == 'imagenet':
train_loader = get_imagenet_iter_dali(type = 'train',image_dir=args.data_dir, batch_size=args.train_batch_size,num_threads=args.workers,crop=IMAGE_SIZE,device_id=0,num_gpus=1)
val_loader = get_imagenet_iter_dali(type='val', image_dir=args.data_dir, batch_size=args.eval_batch_size,num_threads=args.workers,crop=IMAGE_SIZE,device_id=0,num_gpus=1)
elif args.dataset == 'tinyimagenet':
train_loader = get_imagenet_iter_dali(type = 'train',image_dir=args.data_dir, batch_size=args.train_batch_size,num_threads=args.workers,crop=IMAGE_SIZE,device_id=0,num_gpus=1)
val_loader = get_imagenet_iter_dali(type='val', image_dir=args.data_dir, batch_size=args.eval_batch_size,num_threads=args.workers,crop=IMAGE_SIZE,device_id=0,num_gpus=1)
elif args.dataset == 'cifar10':
train_loader = get_cifar_iter_dali(type='train', image_dir=args.data_dir, batch_size=args.train_batch_size,num_threads=args.workers)
val_loader = get_cifar_iter_dali(type='val', image_dir=args.data_dir, batch_size=args.eval_batch_size,num_threads=args.workers)
# Create model
print('=> Building model...')
if args.dataset =='cifar10':
num_classes = 10
train_data_length = 50000
eval_data_length =10000
elif args.dataset == 'imagenet':
num_classes = 1000
train_data_length = 50000
eval_data_length =10000
# arch = args.arch
# model = models.__dict__[arch]
model_config = {'k_bits':kbits_list,'num_layers':args.num_layers,'pre_k_bits':args.pre_k_bits,'ratio':args.ratio}
if args.arch == 'mobilenetv2':
model_config = {'k_bits':kbits_list,'num_layers':args.num_layers,'pre_k_bits':args.pre_k_bits,'ratio':args.ratio,'width_mult':args.width_mult}
if 'vgg' == args.arch and args.batchnorm:
model,model_k_bits = import_module(f"models.{args.dataset}.{args.archtype}.{args.arch}").__dict__[f'{args.arch}{args.num_layers}_bn'](model_config)
elif 'resnet20' == args.arch:
model,model_k_bits = import_module(f"models.{args.dataset}.{args.archtype}.{args.arch}").__dict__[f'{args.arch}'](model_config)
else:
model,model_k_bits = import_module(f"models.{args.dataset}.{args.archtype}.{args.arch}").__dict__[f'{args.arch}{args.num_layers}'](model_config)
model = model.to(device)
print_logger.info(f'model_k_bits_list {model_k_bits}')
# Define loss function (criterion) and optimizer
criterion = nn.CrossEntropyLoss()
optimizer = optim.SGD(model.parameters(), lr=args.lr, momentum=args.momentum, weight_decay=args.weight_decay)
scheduler = MultiStepLR(optimizer, milestones=[0.5 * args.train_epochs, 0.75 * args.train_epochs], gamma=0.1)
# Optionally resume from a checkpoint
resume = args.resume
if resume:
print('=> Loading checkpoint {}'.format(resume))
checkpoint = torch.load(resume, map_location=device)
state_dict = checkpoint['state_dict']
start_epoch = checkpoint['epoch']
pre_train_best_prec1 = checkpoint['best_prec1']
model_check = load_check(state_dict,model)
pdb.set_trace()
model.load_state_dict(model_check)
print('Prec@1:',pre_train_best_prec1)
if args.test_only:
test_prec1 = test(args, device, val_loader, model, criterion, writer_test,print_logger,start_epoch )
print('=> Test Prec@1: {:.2f}'.format(test_prec1))
print(f'sample k_bits {kbits_list}')
return
for epoch in range(0, args.train_epochs):
scheduler.step(epoch)
train_loss, train_prec1 = train(args, device, train_loader, train_data_length, model, criterion, optimizer, writer_train, print_logger, epoch)
test_prec1 = test(args, device, val_loader, eval_data_length, model, criterion, writer_test, print_logger, epoch)
is_best = best_prec1 < test_prec1
best_prec1 = max(test_prec1, best_prec1)
state = {
'state_dict': model.state_dict(),
'test_prec1': test_prec1,
'best_prec1': best_prec1,
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
'epoch': epoch + 1
}
ckpt.save_model(state, epoch + 1, is_best,mode='train')
print_logger.info('==> BEST ACC {:.3f}'.format(best_prec1.item()))
def main():
# Views the training images and displays the distance on anchor-negative and anchor-positive
# print the experiment configuration
print('\nCurrent time is \33[91m{}\33[0m'.format(str(time.asctime())))
print('Parsed options: {}'.format(vars(args)))
print('Number of Classes: {}\n'.format(len(train_dir.speakers)))
# instantiate
# model and initialize weights
model = AttenSiResNet(layers=[3, 4, 6, 3], num_classes=len(train_dir.speakers))
if args.cuda:
model.cuda()
optimizer = create_optimizer(model.parameters(), args.optimizer, **opt_kwargs)
scheduler = MultiStepLR(optimizer, milestones=[18, 24], gamma=0.1)
# criterion = AngularSoftmax(in_feats=args.embedding_size,
# num_classes=len(train_dir.classes))
start = 0
# optionally resume from a checkpoint
if args.resume:
if os.path.isfile(args.resume):
print('=> loading checkpoint {}'.format(args.resume))
checkpoint = torch.load(args.resume)
start = checkpoint['epoch']
checkpoint = torch.load(args.resume)
filtered = {k: v for k, v in checkpoint['state_dict'].items() if 'num_batches_tracked' not in k}
model.load_state_dict(filtered)
optimizer.load_state_dict(checkpoint['optimizer'])
scheduler.load_state_dict(checkpoint['scheduler'])
# criterion.load_state_dict(checkpoint['criterion'])
else:
print('=> no checkpoint found at {}'.format(args.resume))
start += args.start_epoch
print('Start epoch is : ' + str(start))
end = start + args.epochs
# pdb.set_trace()
train_loader = torch.utils.data.DataLoader(train_dir, batch_size=args.batch_size,
# collate_fn=PadCollate(dim=2, fix_len=True),
shuffle=True, **kwargs)
valid_loader = torch.utils.data.DataLoader(valid_dir, batch_size=args.batch_size,
# collate_fn=PadCollate(dim=2, fix_len=True),
shuffle=False, **kwargs)
test_loader = torch.utils.data.DataLoader(test_part, batch_size=args.test_batch_size, shuffle=False, **kwargs)
criterion = nn.CrossEntropyLoss().cuda()
check_path = '{}/checkpoint_{}.pth'.format(args.check_path, -1)
torch.save({'epoch': -1, 'state_dict': model.state_dict(), 'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict()},
# 'criterion': criterion.state_dict()
check_path)
for epoch in range(start, end):
# pdb.set_trace()
for param_group in optimizer.param_groups:
print('\n\33[1;34m Current \'{}\' learning rate is {}.\33[0m'.format(args.optimizer, param_group['lr']))
train(train_loader, model, optimizer, criterion, scheduler, epoch)
test(test_loader, valid_loader, model, epoch)
scheduler.step()
# break
writer.close()
def main(opt):
if torch.cuda.is_available():
torch.distributed.init_process_group(backend='nccl',
init_method='env://')
num_gpus = torch.distributed.get_world_size()
torch.cuda.manual_seed(123)
else:
torch.manual_seed(123)
num_gpus = 1
train_params = {
"batch_size": opt.batch_size * num_gpus,
"shuffle": True,
"drop_last": False,
"num_workers": opt.num_workers,
"collate_fn": collate_fn
}
test_params = {
"batch_size": opt.batch_size * num_gpus,
"shuffle": False,
"drop_last": False,
"num_workers": opt.num_workers,
"collate_fn": collate_fn
}
if opt.model == "ssd":
dboxes = generate_dboxes(model="ssd")
model = SSD(backbone=ResNet(), num_classes=len(coco_classes))
else:
dboxes = generate_dboxes(model="ssdlite")
model = SSDLite(backbone=MobileNetV2(), num_classes=len(coco_classes))
train_set = CocoDataset(opt.data_path, 2017, "train",
SSDTransformer(dboxes, (300, 300), val=False))
train_loader = DataLoader(train_set, **train_params)
test_set = CocoDataset(opt.data_path, 2017, "val",
SSDTransformer(dboxes, (300, 300), val=True))
test_loader = DataLoader(test_set, **test_params)
encoder = Encoder(dboxes)
opt.lr = opt.lr * num_gpus * (opt.batch_size / 32)
criterion = Loss(dboxes)
optimizer = torch.optim.SGD(model.parameters(),
lr=opt.lr,
momentum=opt.momentum,
weight_decay=opt.weight_decay,
nesterov=True)
scheduler = MultiStepLR(optimizer=optimizer,
milestones=opt.multistep,
gamma=0.1)
if torch.cuda.is_available():
model.cuda()
criterion.cuda()
if opt.amp:
from apex import amp
from apex.parallel import DistributedDataParallel as DDP
model, optimizer = amp.initialize(model, optimizer, opt_level='O1')
else:
from torch.nn.parallel import DistributedDataParallel as DDP
# It is recommended to use DistributedDataParallel, instead of DataParallel
# to do multi-GPU training, even if there is only a single node.
model = DDP(model)
if os.path.isdir(opt.log_path):
shutil.rmtree(opt.log_path)
os.makedirs(opt.log_path)
if not os.path.isdir(opt.save_folder):
os.makedirs(opt.save_folder)
checkpoint_path = os.path.join(opt.save_folder, "SSD.pth")
writer = SummaryWriter(opt.log_path)
if os.path.isfile(checkpoint_path):
checkpoint = torch.load(checkpoint_path)
first_epoch = checkpoint["epoch"] + 1
model.module.load_state_dict(checkpoint["model_state_dict"])
scheduler.load_state_dict(checkpoint["scheduler"])
optimizer.load_state_dict(checkpoint["optimizer"])
else:
first_epoch = 0
for epoch in range(first_epoch, opt.epochs):
train(model, train_loader, epoch, writer, criterion, optimizer,
scheduler, opt.amp)
evaluate(model, test_loader, epoch, writer, encoder, opt.nms_threshold)
checkpoint = {
"epoch": epoch,
"model_state_dict": model.module.state_dict(),
"optimizer": optimizer.state_dict(),
"scheduler": scheduler.state_dict()
}
torch.save(checkpoint, checkpoint_path)
mean_generator_adversarial_loss / len(train_dataloader), mean_generator_content_loss /
len(train_dataloader), mean_generator_total_loss / len(train_dataloader)))
log_value('generator_perceptual_loss', mean_generator_perceptual_loss / len(train_dataloader), epoch)
log_value('generator_adversarial_loss', mean_generator_adversarial_loss / len(train_dataloader), epoch)
log_value('generator_content_loss', mean_generator_content_loss / len(train_dataloader), epoch)
log_value('generator_total_loss', mean_generator_total_loss / len(train_dataloader), epoch)
log_value('discriminator_loss', mean_discriminator_loss / len(train_dataloader), epoch)
scheduler_generator.step()
scheduler_discriminator.step()
# Do checkpointing 保存模型
generator_state = {'generator_model': generator.state_dict(),
'generator_optimizer': optim_generator.state_dict(),
'scheduler_generator': scheduler_generator.state_dict(), 'epoch': epoch}
discriminator_state = {'discriminator_model': discriminator.state_dict(), 'discriminator_optimizer':
optim_discriminator.state_dict(), 'scheduler_discriminator':
scheduler_discriminator.state_dict(), 'epoch': epoch}
# save model
torch.save(generator_state, opt.generatorWeights)
torch.save(discriminator_state, opt.discriminatorWeights)
if epoch % 5 == 0:
# 验证集
out_path = 'pretraining_results/SRF_' + str(opt.upSampling) + '/'
if not os.path.exists(out_path):
os.makedirs(out_path)
with torch.no_grad():
def main_train(args):
# 获取命令参数
if args.resume_training is not None:
if not os.path.isfile(args.resume_training):
print(f"{args.resume_training} 不是一个合法的文件!")
return
else:
print(f"加载检查点:{args.resume_training}")
cuda = args.cuda
resume = args.resume_training
batch_size = args.batch_size
milestones = args.milestones
lr = args.lr
total_epoch = args.epochs
resume_checkpoint_filename = args.resume_training
best_model_name = args.best_model_name
checkpoint_name = args.best_model_name
data_path = args.data_path
start_epoch = 1
print("加载数据....")
dataset = ISONetData(data_path=data_path)
dataset_test = ISONetData(data_path=data_path, train=False)
data_loader = DataLoader(dataset=dataset,
batch_size=batch_size,
shuffle=True,
num_workers=6,
pin_memory=True)
data_loader_test = DataLoader(dataset=dataset_test,
batch_size=batch_size,
shuffle=False)
print("成功加载数据...")
print(f"训练集数量: {len(dataset)}")
print(f"验证集数量: {len(dataset_test)}")
model_path = Path("models")
checkpoint_path = model_path.joinpath("checkpoint")
if not model_path.exists():
model_path.mkdir()
if not checkpoint_path.exists():
checkpoint_path.mkdir()
if torch.cuda.is_available():
device = torch.cuda.current_device()
else:
print("cuda 无效!")
cuda = False
net = ISONet()
criterion = nn.MSELoss(reduction="mean")
optimizer = optim.Adam(net.parameters(), lr=lr)
if cuda:
net = net.to(device=device)
criterion = criterion.to(device=device)
scheduler = MultiStepLR(optimizer=optimizer,
milestones=milestones,
gamma=0.1)
writer = SummaryWriter()
# 恢复训练
if resume:
print("恢复训练中...")
checkpoint = torch.load(
checkpoint_path.joinpath(resume_checkpoint_filename))
net.load_state_dict(checkpoint["net"])
optimizer.load_state_dict((checkpoint["optimizer"]))
scheduler.load_state_dict(checkpoint["scheduler"])
resume_epoch = checkpoint["epoch"]
best_test_loss = checkpoint["best_test_loss"]
start_epoch = resume_epoch + 1
print(f"从第[{start_epoch}]轮开始训练...")
print(f"上一次的损失为: [{best_test_loss}]...")
else:
# 初始化权重
for m in net.modules():
if isinstance(m, nn.Conv2d):
nn.init.kaiming_normal_(m.weight)
elif isinstance(m, nn.Linear):
nn.init.constant_(m.bias, 0)
if not locals().get("best_test_loss"):
best_test_loss = 0
record = 0
for epoch in range(start_epoch, total_epoch):
print(f"开始第 [{epoch}] 轮训练...")
net.train()
writer.add_scalar("Train/Learning Rate",
scheduler.get_last_lr()[0], epoch)
for i, (data, label) in enumerate(data_loader, 0):
if i == 0:
start_time = int(time.time())
if cuda:
data = data.to(device=device)
label = label.to(device=device)
label = label.unsqueeze(1)
optimizer.zero_grad()
output = net(data)
loss = criterion(output, label)
loss.backward()
optimizer.step()
if i % 500 == 499:
end_time = int(time.time())
use_time = end_time - start_time
print(
f">>> epoch[{epoch}] loss[{loss:.4f}] {i * batch_size}/{len(dataset)} lr{scheduler.get_last_lr()} ",
end="")
left_time = ((len(dataset) - i * batch_size) / 500 /
batch_size) * (end_time - start_time)
print(
f"耗费时间：[{end_time - start_time:.2f}]秒,估计剩余时间: [{left_time:.2f}]秒"
)
start_time = end_time
# 记录到 tensorboard
if i % 128 == 127:
writer.add_scalar("Train/loss", loss, record)
record += 1
# validate
print("测试模型...")
net.eval()
test_loss = 0
with torch.no_grad():
loss_t = nn.MSELoss(reduction="mean")
if cuda:
loss_t = loss_t.to(device)
for data, label in data_loader_test:
if cuda:
data = data.to(device)
label = label.to(device)
# expand dim
label = label.unsqueeze_(1)
predict = net(data)
# sum up batch loss
test_loss += loss_t(predict, label).item()
test_loss /= len(dataset_test)
test_loss *= batch_size
print(
f'\nTest Data: Average batch[{batch_size}] loss: {test_loss:.4f}\n'
)
scheduler.step()
writer.add_scalar("Test/Loss", test_loss, epoch)
checkpoint = {
"net": net.state_dict(),
"optimizer": optimizer.state_dict(),
"epoch": epoch,
"scheduler": scheduler.state_dict(),
"best_test_loss": best_test_loss
}
if best_test_loss == 0:
print("保存模型中...")
torch.save(net.state_dict(), model_path.joinpath(best_model_name))
best_test_loss = test_loss
else:
# 保存更好的模型
if test_loss < best_test_loss:
print("获取到更好的模型,保存中...")
torch.save(net.state_dict(),
model_path.joinpath(best_model_name))
best_test_loss = test_loss
# 保存检查点
if epoch % args.save_every_epochs == 0:
c_time = time2str()
torch.save(
checkpoint,
checkpoint_path.joinpath(
f"{checkpoint_name}_{epoch}_{c_time}.cpth"))
print(f"保存检查点: [{checkpoint_name}_{epoch}_{c_time}.cpth]...\n")
class AuxModel:
def __init__(self, config, logger, wandb):
self.config = config
self.logger = logger
self.writer = SummaryWriter(config.log_dir)
self.wandb = wandb
cudnn.enabled = True
# set up model
self.device = torch.device(
"cuda" if torch.cuda.is_available() else "cpu")
self.model = get_model(config)
if len(config.gpus) > 1:
self.model = nn.DataParallel(self.model)
self.model = self.model.to(self.device)
self.best_acc = 0
self.best_AUC = 0
self.class_loss_func = nn.CrossEntropyLoss()
self.pixel_loss = nn.L1Loss()
if config.mode == 'train':
# set up optimizer, lr scheduler and loss functions
lr = config.lr
self.optimizer = torch.optim.Adam(self.model.parameters(),
lr=lr,
betas=(.5, .999))
self.scheduler = MultiStepLR(self.optimizer,
milestones=[50, 150],
gamma=0.1)
self.wandb.watch(self.model)
self.start_iter = 0
# resume
if config.training_resume:
self.load(config.model_dir + '/' + config.training_resume)
cudnn.benchmark = True
elif config.mode == 'val':
self.load(os.path.join(config.testing_model))
else:
self.load(os.path.join(config.testing_model))
def entropy_loss(self, x):
return torch.sum(-F.softmax(x, 1) * F.log_softmax(x, 1), 1).mean()
def train_epoch_main_task(self, src_loader, tar_loader, epoch, print_freq):
self.model.train()
batch_time = AverageMeter()
losses = AverageMeter()
main_loss = AverageMeter()
top1 = AverageMeter()
for it, src_batch in enumerate(src_loader['main_task']):
t = time.time()
self.optimizer.zero_grad()
src = src_batch
src = to_device(src, self.device)
src_imgs, src_cls_lbls = src
self.optimizer.zero_grad()
src_main_logits = self.model(src_imgs, 'main_task')
src_main_loss = self.class_loss_func(src_main_logits, src_cls_lbls)
loss = src_main_loss * self.config.loss_weight['main_task']
main_loss.update(loss.item(), src_imgs.size(0))
precision1_train, precision2_train = accuracy(src_main_logits,
src_cls_lbls,
topk=(1, 2))
top1.update(precision1_train[0], src_imgs.size(0))
loss.backward()
self.optimizer.step()
losses.update(loss.item(), src_imgs.size(0))
# measure elapsed time
batch_time.update(time.time() - t)
self.start_iter += 1
if self.start_iter % print_freq == 0:
print_string = 'Epoch {:>2} | iter {:>4} | loss:{:.3f}| acc:{:.3f}| src_main: {:.3f} |' + '|{:4.2f} s/it'
self.logger.info(
print_string.format(epoch, self.start_iter, losses.avg,
top1.avg, main_loss.avg,
batch_time.avg))
self.writer.add_scalar('losses/all_loss', losses.avg,
self.start_iter)
self.writer.add_scalar('losses/src_main_loss', src_main_loss,
self.start_iter)
self.scheduler.step()
self.wandb.log({"Train Loss": main_loss.avg})
# del loss, src_class_loss, src_aux_loss, tar_aux_loss, tar_entropy_loss
# del src_aux_logits, src_class_logits
# del tar_aux_logits, tar_class_logits
def train_epoch_all_tasks(self, src_loader, tar_loader, epoch, print_freq):
self.model.train()
batch_time = AverageMeter()
losses = AverageMeter()
main_loss = AverageMeter()
top1 = AverageMeter()
start_steps = epoch * len(tar_loader['main_task'])
total_steps = self.config.num_epochs * len(tar_loader['main_task'])
max_num_iter_src = max([
len(src_loader[task_name]) for task_name in self.config.task_names
])
for it in range(max_num_iter_src):
t = time.time()
# this is based on DANN paper
p = float(it + start_steps) / total_steps
alpha = 2. / (1. + np.exp(-10 * p)) - 1
self.optimizer.zero_grad()
src = next(iter(src_loader['main_task']))
tar = next(iter(tar_loader['main_task']))
src = to_device(src, self.device)
tar = to_device(tar, self.device)
src_imgs, src_cls_lbls = src
tar_imgs, _ = tar
src_main_logits = self.model(src_imgs, 'main_task')
src_main_loss = self.class_loss_func(src_main_logits, src_cls_lbls)
loss = src_main_loss * self.config.loss_weight['main_task']
main_loss.update(loss.item(), src_imgs.size(0))
tar_main_logits = self.model(tar_imgs, 'main_task')
tar_main_loss = self.entropy_loss(tar_main_logits)
loss += tar_main_loss
tar_aux_loss = {}
src_aux_loss = {}
#TO DO: separating dataloaders and iterate over tasks
for task in self.config.task_names:
if self.config.tasks[task]['type'] == 'classification_adapt':
r = torch.randperm(src_imgs.size()[0] + tar_imgs.size()[0])
src_tar_imgs = torch.cat((src_imgs, tar_imgs), dim=0)
src_tar_imgs = src_tar_imgs[r, :, :, :]
src_tar_img = src_tar_imgs[:src_imgs.size()[0], :, :, :]
src_tar_lbls = torch.cat((torch.zeros(
(src_imgs.size()[0])), torch.ones(
(tar_imgs.size()[0]))),
dim=0)
src_tar_lbls = src_tar_lbls[r]
src_tar_lbls = src_tar_lbls[:src_imgs.size()[0]]
src_tar_lbls = src_tar_lbls.long().cuda()
src_tar_logits = self.model(src_tar_img,
'domain_classifier', alpha)
tar_aux_loss['domain_classifier'] = self.class_loss_func(
src_tar_logits, src_tar_lbls)
loss += tar_aux_loss[
'domain_classifier'] * self.config.loss_weight[
'domain_classifier']
if self.config.tasks[task]['type'] == 'classification_self':
src = next(iter(src_loader[task]))
tar = next(iter(tar_loader[task]))
src = to_device(src, self.device)
tar = to_device(tar, self.device)
src_aux_imgs, src_aux_lbls = src
tar_aux_imgs, tar_aux_lbls = tar
tar_aux_logits = self.model(tar_aux_imgs, task)
src_aux_logits = self.model(src_aux_imgs, task)
tar_aux_loss[task] = self.class_loss_func(
tar_aux_logits, tar_aux_lbls)
src_aux_loss[task] = self.class_loss_func(
src_aux_logits, src_aux_lbls)
loss += src_aux_loss[task] * self.config.loss_weight[
task] # todo: magnification weight
loss += tar_aux_loss[task] * self.config.loss_weight[
task] # todo: main task weight
if self.config.tasks[task]['type'] == 'pixel_self':
src = next(iter(src_loader[task]))
tar = next(iter(tar_loader[task]))
src = to_device(src, self.device)
tar = to_device(tar, self.device)
src_aux_imgs, src_aux_lbls = src
tar_aux_imgs, tar_aux_lbls = tar
tar_aux_mag_logits = self.model(tar_aux_imgs, task)
src_aux_mag_logits = self.model(src_aux_imgs, task)
tar_aux_loss[task] = self.pixel_loss(
tar_aux_mag_logits, tar_aux_lbls)
src_aux_loss[task] = self.pixel_loss(
src_aux_mag_logits, src_aux_lbls)
loss += src_aux_loss[task] * self.config.loss_weight[
task] # todo: magnification weight
loss += tar_aux_loss[task] * self.config.loss_weight[task]
precision1_train, precision2_train = accuracy(src_main_logits,
src_cls_lbls,
topk=(1, 2))
top1.update(precision1_train[0], src_imgs.size(0))
loss.backward()
self.optimizer.step()
losses.update(loss.item(), src_imgs.size(0))
# measure elapsed time
batch_time.update(time.time() - t)
self.start_iter += 1
if self.start_iter % print_freq == 0:
printt = ''
for task_name in self.config.aux_task_names:
if task_name == 'domain_classifier':
printt = printt + ' | tar_aux_' + task_name + ': {:.3f} |'
else:
printt = printt + 'src_aux_' + task_name + ': {:.3f} | tar_aux_' + task_name + ': {:.3f}'
print_string = 'Epoch {:>2} | iter {:>4} | loss:{:.3f} | acc: {:.3f} | src_main: {:.3f} |' + printt + '{:4.2f} s/it'
src_aux_loss_all = [
loss.item() for loss in src_aux_loss.values()
]
tar_aux_loss_all = [
loss.item() for loss in tar_aux_loss.values()
]
self.logger.info(
print_string.format(epoch, self.start_iter, losses.avg,
top1.avg, main_loss.avg,
*src_aux_loss_all, *tar_aux_loss_all,
batch_time.avg))
self.writer.add_scalar('losses/all_loss', losses.avg,
self.start_iter)
self.writer.add_scalar('losses/src_main_loss', src_main_loss,
self.start_iter)
for task_name in self.config.aux_task_names:
if task_name == 'domain_classifier':
# self.writer.add_scalar('losses/src_aux_loss_'+task_name, src_aux_loss[task_name], i_iter)
self.writer.add_scalar(
'losses/tar_aux_loss_' + task_name,
tar_aux_loss[task_name], self.start_iter)
else:
self.writer.add_scalar(
'losses/src_aux_loss_' + task_name,
src_aux_loss[task_name], self.start_iter)
self.writer.add_scalar(
'losses/tar_aux_loss_' + task_name,
tar_aux_loss[task_name], self.start_iter)
self.scheduler.step()
self.wandb.log({"Train Loss": main_loss.avg})
# del loss, src_class_loss, src_aux_loss, tar_aux_loss, tar_entropy_loss
# del src_aux_logits, src_class_logits
# del tar_aux_logits, tar_class_logits
def train(self, src_loader, tar_loader, val_loader, test_loader):
num_batches = len(src_loader['main_task'])
print_freq = max(num_batches // self.config.training_num_print_epoch,
1)
start_epoch = self.start_iter // num_batches
num_epochs = self.config.num_epochs
for epoch in range(start_epoch, num_epochs):
if len(self.config.task_names) == 1:
self.train_epoch_main_task(src_loader, tar_loader, epoch,
print_freq)
else:
self.train_epoch_all_tasks(src_loader, tar_loader, epoch,
print_freq)
self.logger.info('learning rate: %f ' % get_lr(self.optimizer))
# validation
self.save(self.config.model_dir, 'last')
if val_loader is not None:
self.logger.info('validating...')
class_acc, AUC = self.test(val_loader)
# self.writer.add_scalar('val/aux_acc', class_acc, i_iter)
self.writer.add_scalar('val/class_acc', class_acc,
self.start_iter)
if class_acc > self.best_acc:
self.best_acc = class_acc
self.save(self.config.best_model_dir, 'best_acc')
if AUC > self.best_AUC:
self.best_AUC = AUC
self.save(self.config.best_model_dir, 'best_AUC')
# todo copy current model to best model
self.logger.info('Best validation accuracy: {:.2f} %'.format(
self.best_acc))
if test_loader is not None:
self.logger.info('testing...')
class_acc = self.test(test_loader)
# self.writer.add_scalar('test/aux_acc', class_acc, i_iter)
self.writer.add_scalar('test/class_acc', class_acc,
self.start_iter)
# if class_acc > self.best_acc:
# self.best_acc = class_acc
# todo copy current model to best model
self.logger.info(
'Best testing accuracy: {:.2f} %'.format(class_acc))
self.logger.info('Best validation accuracy: {:.2f} %'.format(
self.best_acc))
self.logger.info('Finished Training.')
def save(self, path, ext):
state = {
"iter": self.start_iter + 1,
"model_state": self.model.state_dict(),
"optimizer_state": self.optimizer.state_dict(),
"scheduler_state": self.scheduler.state_dict(),
"best_acc": self.best_acc,
}
save_path = os.path.join(path, f'model_{ext}.pth')
self.logger.info('Saving model to %s' % save_path)
torch.save(state, save_path)
def load(self, path):
checkpoint = torch.load(path)
self.model.load_state_dict(checkpoint['model_state'])
self.logger.info('Loaded model from: ' + path)
if self.config.mode == 'train':
self.model.load_state_dict(checkpoint['model_state'])
self.optimizer.load_state_dict(checkpoint['optimizer_state'])
self.scheduler.load_state_dict(checkpoint['scheduler_state'])
self.start_iter = checkpoint['iter']
self.best_acc = checkpoint['best_acc']
self.logger.info('Start iter: %d ' % self.start_iter)
def test(self, val_loader):
val_loader_iterator = iter(val_loader)
num_val_iters = len(val_loader)
tt = tqdm(range(num_val_iters), total=num_val_iters, desc="Validating")
loss = AverageMeter()
kk = 1
aux_correct = 0
class_correct = 0
total = 0
if self.config.dataset == 'kather':
soft_labels = np.zeros((1, 9))
if self.config.dataset == 'oscc' or self.config.dataset == 'cam':
soft_labels = np.zeros((1, 2))
true_labels = []
self.model.eval()
with torch.no_grad():
for cur_it in tt:
data = next(val_loader_iterator)
data = to_device(data, self.device)
imgs, cls_lbls = data
# Get the inputs
logits = self.model(imgs, 'main_task')
test_loss = self.class_loss_func(logits, cls_lbls)
loss.update(test_loss.item(), imgs.size(0))
if self.config.save_output == True:
smax = nn.Softmax(dim=1)
smax_out = smax(logits)
soft_labels = np.concatenate(
(soft_labels, smax_out.cpu().numpy()), axis=0)
true_labels = np.append(true_labels,
cls_lbls.cpu().numpy())
pred_trh = smax_out.cpu().numpy()[:, 1]
pred_trh[pred_trh >= 0.5] = 1
pred_trh[pred_trh < 0.5] = 0
compare = cls_lbls.cpu().numpy() - pred_trh
kk += 1
_, cls_pred = logits.max(dim=1)
class_correct += torch.sum(cls_pred == cls_lbls)
total += imgs.size(0)
tt.close()
self.wandb.log({"Test Loss": loss.avg})
# if self.config.save_output == True:
soft_labels = soft_labels[1:, :]
if self.config.dataset == 'oscc' or self.config.dataset == 'cam':
AUC = calculate_stat(soft_labels,
true_labels,
2,
self.config.class_names,
type='binary',
thresh=0.5)
if self.config.dataset == 'kather':
AUC = calculate_stat(soft_labels,
true_labels,
9,
self.config.class_names,
type='multi',
thresh=0.5)
class_acc = 100 * float(class_correct) / total
self.logger.info('class_acc: {:.2f} %'.format(class_acc))
self.wandb.log({"Test acc": class_acc, "Test AUC": 100 * AUC})
return class_acc, AUC
def main():
# Views the training images and displays the distance on anchor-negative and anchor-positive
# print the experiment configuration
print('\nCurrent time is \33[91m{}\33[0m'.format(str(time.asctime())))
print('Parsed options: {}'.format(vars(args)))
print('Number of Classes: {}\n'.format(len(train_dir.speakers)))
# instantiate
# model and initialize weights
# instantiate model and initialize weights
model_kwargs = {
'input_dim': args.feat_dim,
'embedding_size': args.embedding_size,
'num_classes': len(train_dir.speakers),
'dropout_p': args.dropout_p
}
print('Model options: {}'.format(model_kwargs))
model = create_model(args.model, **model_kwargs)
if args.cuda:
model.cuda()
start = 0
# optionally resume from a checkpoint
if args.resume:
if os.path.isfile(args.resume):
print('=> loading checkpoint {}'.format(args.resume))
checkpoint = torch.load(args.resume)
start = checkpoint['epoch']
checkpoint = torch.load(args.resume)
filtered = {
k: v
for k, v in checkpoint['state_dict'].items()
if 'num_batches_tracked' not in k
}
model.load_state_dict(filtered)
# optimizer.load_state_dict(checkpoint['optimizer'])
# scheduler.load_state_dict(checkpoint['scheduler'])
# criterion.load_state_dict(checkpoint['criterion'])
else:
print('=> no checkpoint found at {}'.format(args.resume))
ce_criterion = nn.CrossEntropyLoss()
if args.loss_type == 'soft':
xe_criterion = None
elif args.loss_type == 'asoft':
ce_criterion = None
model.classifier = AngleLinear(in_features=args.embedding_size,
out_features=train_dir.num_spks,
m=args.m)
xe_criterion = AngleSoftmaxLoss(lambda_min=args.lambda_min,
lambda_max=args.lambda_max)
elif args.loss_type == 'center':
xe_criterion = CenterLoss(num_classes=train_dir.num_spks,
feat_dim=args.embedding_size)
elif args.loss_type == 'amsoft':
model.classifier = AdditiveMarginLinear(feat_dim=args.embedding_size,
n_classes=train_dir.num_spks)
xe_criterion = AMSoftmaxLoss(margin=args.margin, s=args.s)
optimizer = create_optimizer(model.parameters(), args.optimizer,
**opt_kwargs)
if args.loss_type == 'center':
optimizer = torch.optim.SGD([{
'params': xe_criterion.parameters(),
'lr': args.lr * 5
}, {
'params': model.parameters()
}],
lr=args.lr,
weight_decay=args.weight_decay,
momentum=args.momentum)
if args.finetune:
if args.loss_type == 'asoft' or args.loss_type == 'amsoft':
classifier_params = list(map(id, model.classifier.parameters()))
rest_params = filter(lambda p: id(p) not in classifier_params,
model.parameters())
optimizer = torch.optim.SGD(
[{
'params': model.classifier.parameters(),
'lr': args.lr * 5
}, {
'params': rest_params
}],
lr=args.lr,
weight_decay=args.weight_decay,
momentum=args.momentum)
milestones = args.milestones.split(',')
milestones = [int(x) for x in milestones]
milestones.sort()
# print('Scheduler options: {}'.format(milestones))
scheduler = MultiStepLR(optimizer, milestones=milestones, gamma=0.1)
if args.save_init and not args.finetune:
check_path = '{}/checkpoint_{}.pth'.format(args.check_path, start)
torch.save(
{
'epoch': start,
'state_dict': model.state_dict(),
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict()
}, check_path)
start += args.start_epoch
print('Start epoch is : ' + str(start))
end = args.epochs + 1
# pdb.set_trace()
train_loader = torch.utils.data.DataLoader(train_dir,
batch_size=args.batch_size,
shuffle=True,
**kwargs)
valid_loader = torch.utils.data.DataLoader(valid_dir,
batch_size=args.batch_size,
shuffle=False,
**kwargs)
test_loader = torch.utils.data.DataLoader(test_part,
batch_size=args.test_batch_size,
shuffle=False,
**kwargs)
ce = [ce_criterion, xe_criterion]
if args.cuda:
model = model.cuda()
for i in range(len(ce)):
if ce[i] != None:
ce[i] = ce[i].cuda()
for epoch in range(start, end):
# pdb.set_trace()
print('\n\33[1;34m Current \'{}\' learning rate is '.format(
args.optimizer),
end='')
for param_group in optimizer.param_groups:
print('{:.5f} '.format(param_group['lr']), end='')
print(' \33[0m')
train(train_loader, model, optimizer, ce, epoch)
test(test_loader, valid_loader, model, epoch)
scheduler.step()
# break
writer.close()
class Processor():
"""Processor for Skeleton-based Action Recgnition"""
def __init__(self, arg):
self.arg = arg
self.save_arg()
if arg.phase == 'train':
# Added control through the command line
arg.train_feeder_args[
'debug'] = arg.train_feeder_args['debug'] or self.arg.debug
logdir = os.path.join(arg.work_dir, 'trainlogs')
if not arg.train_feeder_args['debug']:
# logdir = arg.model_saved_name
if os.path.isdir(logdir):
print(f'log_dir {logdir} already exists')
if arg.assume_yes:
answer = 'y'
else:
answer = input('delete it? [y]/n:')
if answer.lower() in ('y', ''):
shutil.rmtree(logdir)
print('Dir removed:', logdir)
else:
print('Dir not removed:', logdir)
self.train_writer = SummaryWriter(
os.path.join(logdir, 'train'), 'train')
self.val_writer = SummaryWriter(os.path.join(logdir, 'val'),
'val')
else:
self.train_writer = SummaryWriter(
os.path.join(logdir, 'debug'), 'debug')
self.load_model()
self.load_param_groups()
self.load_optimizer()
self.load_lr_scheduler()
self.load_data()
self.global_step = 0
self.lr = self.arg.base_lr
self.best_acc = 0
self.best_acc_epoch = 0
if self.arg.half:
self.print_log('*************************************')
self.print_log('*** Using Half Precision Training ***')
self.print_log('*************************************')
self.model, self.optimizer = apex.amp.initialize(
self.model,
self.optimizer,
opt_level=f'O{self.arg.amp_opt_level}')
if self.arg.amp_opt_level != 1:
self.print_log(
'[WARN] nn.DataParallel is not yet supported by amp_opt_level != "O1"'
)
if type(self.arg.device) is list:
if len(self.arg.device) > 1:
self.print_log(
f'{len(self.arg.device)} GPUs available, using DataParallel'
)
self.model = nn.DataParallel(self.model,
device_ids=self.arg.device,
output_device=self.output_device)
def load_model(self):
output_device = self.arg.device[0] if type(
self.arg.device) is list else self.arg.device
self.output_device = output_device
Model = import_class(self.arg.model)
# Copy model file and main
shutil.copy2(inspect.getfile(Model), self.arg.work_dir)
shutil.copy2(os.path.join('.', __file__), self.arg.work_dir)
self.model = Model(**self.arg.model_args).cuda(output_device)
self.loss = nn.CrossEntropyLoss().cuda(output_device)
self.print_log(
f'Model total number of params: {count_params(self.model)}')
if self.arg.weights:
try:
self.global_step = int(arg.weights[:-3].split('-')[-1])
except:
print('Cannot parse global_step from model weights filename')
self.global_step = 0
self.print_log(f'Loading weights from {self.arg.weights}')
if '.pkl' in self.arg.weights:
with open(self.arg.weights, 'r') as f:
weights = pickle.load(f)
else:
weights = torch.load(self.arg.weights)
weights = OrderedDict(
[[k.split('module.')[-1],
v.cuda(output_device)] for k, v in weights.items()])
for w in self.arg.ignore_weights:
if weights.pop(w, None) is not None:
self.print_log(f'Sucessfully Remove Weights: {w}')
else:
self.print_log(f'Can Not Remove Weights: {w}')
try:
self.model.load_state_dict(weights)
except:
state = self.model.state_dict()
diff = list(set(state.keys()).difference(set(weights.keys())))
self.print_log('Can not find these weights:')
for d in diff:
self.print_log(' ' + d)
state.update(weights)
self.model.load_state_dict(state)
def load_param_groups(self):
"""
Template function for setting different learning behaviour
(e.g. LR, weight decay) of different groups of parameters
"""
self.param_groups = defaultdict(list)
for name, params in self.model.named_parameters():
self.param_groups['other'].append(params)
self.optim_param_groups = {
'other': {
'params': self.param_groups['other']
}
}
def load_optimizer(self):
params = list(self.optim_param_groups.values())
if self.arg.optimizer == 'SGD':
self.optimizer = optim.SGD(params,
lr=self.arg.base_lr,
momentum=0.9,
nesterov=self.arg.nesterov,
weight_decay=self.arg.weight_decay)
elif self.arg.optimizer == 'Adam':
self.optimizer = optim.Adam(params,
lr=self.arg.base_lr,
weight_decay=self.arg.weight_decay)
else:
raise ValueError('Unsupported optimizer: {}'.format(
self.arg.optimizer))
# Load optimizer states if any
if self.arg.checkpoint is not None:
self.print_log(
f'Loading optimizer states from: {self.arg.checkpoint}')
self.optimizer.load_state_dict(
torch.load(self.arg.checkpoint)['optimizer_states'])
current_lr = self.optimizer.param_groups[0]['lr']
self.print_log(f'Starting LR: {current_lr}')
self.print_log(
f'Starting WD1: {self.optimizer.param_groups[0]["weight_decay"]}'
)
if len(self.optimizer.param_groups) >= 2:
self.print_log(
f'Starting WD2: {self.optimizer.param_groups[1]["weight_decay"]}'
)
def load_lr_scheduler(self):
self.lr_scheduler = MultiStepLR(self.optimizer,
milestones=self.arg.step,
gamma=0.1)
if self.arg.checkpoint is not None:
scheduler_states = torch.load(
self.arg.checkpoint)['lr_scheduler_states']
self.print_log(
f'Loading LR scheduler states from: {self.arg.checkpoint}')
self.lr_scheduler.load_state_dict(scheduler_states)
self.print_log(
f'Starting last epoch: {scheduler_states["last_epoch"]}')
self.print_log(
f'Loaded milestones: {scheduler_states["last_epoch"]}')
def load_data(self):
Feeder = import_class(self.arg.feeder)
self.data_loader = dict()
def worker_seed_fn(worker_id):
# give workers different seeds
return init_seed(self.arg.seed + worker_id + 1)
if self.arg.phase == 'train':
self.data_loader['train'] = torch.utils.data.DataLoader(
dataset=Feeder(**self.arg.train_feeder_args),
batch_size=self.arg.batch_size,
shuffle=True,
num_workers=self.arg.num_worker,
drop_last=True,
worker_init_fn=worker_seed_fn)
self.data_loader['test'] = torch.utils.data.DataLoader(
dataset=Feeder(**self.arg.test_feeder_args),
batch_size=self.arg.test_batch_size,
shuffle=False,
num_workers=self.arg.num_worker,
drop_last=False,
worker_init_fn=worker_seed_fn)
def save_arg(self):
# save arg
arg_dict = vars(self.arg)
if not os.path.exists(self.arg.work_dir):
os.makedirs(self.arg.work_dir)
with open(os.path.join(self.arg.work_dir, 'config.yaml'), 'w') as f:
yaml.dump(arg_dict, f)
def print_time(self):
localtime = time.asctime(time.localtime(time.time()))
self.print_log(f'Local current time: {localtime}')
def print_log(self, s, print_time=True):
if print_time:
localtime = time.asctime(time.localtime(time.time()))
s = f'[ {localtime} ] {s}'
print(s)
if self.arg.print_log:
with open(os.path.join(self.arg.work_dir, 'log.txt'), 'a') as f:
print(s, file=f)
def record_time(self):
self.cur_time = time.time()
return self.cur_time
def split_time(self):
split_time = time.time() - self.cur_time
self.record_time()
return split_time
def save_states(self, epoch, states, out_folder, out_name):
out_folder_path = os.path.join(self.arg.work_dir, out_folder)
out_path = os.path.join(out_folder_path, out_name)
os.makedirs(out_folder_path, exist_ok=True)
torch.save(states, out_path)
def save_checkpoint(self, epoch, out_folder='checkpoints'):
state_dict = {
'epoch': epoch,
'optimizer_states': self.optimizer.state_dict(),
'lr_scheduler_states': self.lr_scheduler.state_dict(),
}
checkpoint_name = f'checkpoint-{epoch}-fwbz{self.arg.forward_batch_size}-{int(self.global_step)}.pt'
self.save_states(epoch, state_dict, out_folder, checkpoint_name)
def save_weights(self, epoch, out_folder='weights'):
state_dict = self.model.state_dict()
weights = OrderedDict([[k.split('module.')[-1],
v.cpu()] for k, v in state_dict.items()])
weights_name = f'weights-{epoch}-{int(self.global_step)}.pt'
self.save_states(epoch, weights, out_folder, weights_name)
def train(self, epoch, save_model=False):
self.model.train()
loader = self.data_loader['train']
loss_values = []
self.train_writer.add_scalar('epoch', epoch + 1, self.global_step)
self.record_time()
timer = dict(dataloader=0.001, model=0.001, statistics=0.001)
current_lr = self.optimizer.param_groups[0]['lr']
self.print_log(f'Training epoch: {epoch + 1}, LR: {current_lr:.4f}')
process = tqdm(loader, dynamic_ncols=True)
for batch_idx, (data, label, index) in enumerate(process):
self.global_step += 1
# get data
with torch.no_grad():
data = data.float().cuda(self.output_device)
label = label.long().cuda(self.output_device)
timer['dataloader'] += self.split_time()
# backward
self.optimizer.zero_grad()
############## Gradient Accumulation for Smaller Batches ##############
real_batch_size = self.arg.forward_batch_size
splits = len(data) // real_batch_size
assert len(data) % real_batch_size == 0, \
'Real batch size should be a factor of arg.batch_size!'
for i in range(splits):
left = i * real_batch_size
right = left + real_batch_size
batch_data, batch_label = data[left:right], label[left:right]
# forward
output = self.model(batch_data)
if isinstance(output, tuple):
output, l1 = output
l1 = l1.mean()
else:
l1 = 0
loss = self.loss(output, batch_label) / splits
if self.arg.half:
with apex.amp.scale_loss(loss,
self.optimizer) as scaled_loss:
scaled_loss.backward()
else:
loss.backward()
loss_values.append(loss.item())
timer['model'] += self.split_time()
# Display loss
process.set_description(
f'(BS {real_batch_size}) loss: {loss.item():.4f}')
value, predict_label = torch.max(output, 1)
acc = torch.mean((predict_label == batch_label).float())
self.train_writer.add_scalar('acc', acc, self.global_step)
self.train_writer.add_scalar('loss',
loss.item() * splits,
self.global_step)
self.train_writer.add_scalar('loss_l1', l1, self.global_step)
#####################################
# torch.nn.utils.clip_grad_norm_(self.model.parameters(), 2)
self.optimizer.step()
# statistics
self.lr = self.optimizer.param_groups[0]['lr']
self.train_writer.add_scalar('lr', self.lr, self.global_step)
timer['statistics'] += self.split_time()
# Delete output/loss after each batch since it may introduce extra mem during scoping
# https://discuss.pytorch.org/t/gpu-memory-consumption-increases-while-training/2770/3
del output
del loss
# statistics of time consumption and loss
proportion = {
k: f'{int(round(v * 100 / sum(timer.values()))):02d}%'
for k, v in timer.items()
}
mean_loss = np.mean(loss_values)
num_splits = self.arg.batch_size // self.arg.forward_batch_size
self.print_log(
f'\tMean training loss: {mean_loss:.4f} (BS {self.arg.batch_size}: {mean_loss * num_splits:.4f}).'
)
self.print_log(
'\tTime consumption: [Data]{dataloader}, [Network]{model}'.format(
**proportion))
# PyTorch > 1.2.0: update LR scheduler here with `.step()`
# and make sure to save the `lr_scheduler.state_dict()` as part of checkpoint
self.lr_scheduler.step()
if save_model:
# save training checkpoint & weights
self.save_weights(epoch + 1)
self.save_checkpoint(epoch + 1)
def eval(self,
epoch,
save_score=False,
loader_name=['test'],
wrong_file=None,
result_file=None):
# Skip evaluation if too early
if epoch + 1 < self.arg.eval_start:
return
if wrong_file is not None:
f_w = open(wrong_file, 'w')
if result_file is not None:
f_r = open(result_file, 'w')
with torch.no_grad():
self.model = self.model.cuda(self.output_device)
self.model.eval()
self.print_log(f'Eval epoch: {epoch + 1}')
for ln in loader_name:
loss_values = []
score_batches = []
step = 0
process = tqdm(self.data_loader[ln], dynamic_ncols=True)
for batch_idx, (data, label, index) in enumerate(process):
data = data.float().cuda(self.output_device)
label = label.long().cuda(self.output_device)
output = self.model(data)
if isinstance(output, tuple):
output, l1 = output
l1 = l1.mean()
else:
l1 = 0
loss = self.loss(output, label)
score_batches.append(output.data.cpu().numpy())
loss_values.append(loss.item())
_, predict_label = torch.max(output.data, 1)
step += 1
if wrong_file is not None or result_file is not None:
predict = list(predict_label.cpu().numpy())
true = list(label.data.cpu().numpy())
for i, x in enumerate(predict):
if result_file is not None:
f_r.write(str(x) + ',' + str(true[i]) + '\n')
if x != true[i] and wrong_file is not None:
f_w.write(
str(index[i]) + ',' + str(x) + ',' +
str(true[i]) + '\n')
score = np.concatenate(score_batches)
loss = np.mean(loss_values)
accuracy = self.data_loader[ln].dataset.top_k(score, 1)
if accuracy > self.best_acc:
self.best_acc = accuracy
self.best_acc_epoch = epoch + 1
print('Accuracy: ', accuracy, ' model: ', self.arg.work_dir)
if self.arg.phase == 'train' and not self.arg.debug:
self.val_writer.add_scalar('loss', loss, self.global_step)
self.val_writer.add_scalar('loss_l1', l1, self.global_step)
self.val_writer.add_scalar('acc', accuracy, self.global_step)
score_dict = dict(
zip(self.data_loader[ln].dataset.sample_name, score))
self.print_log(
f'\tMean {ln} loss of {len(self.data_loader[ln])} batches: {np.mean(loss_values)}.'
)
for k in self.arg.show_topk:
self.print_log(
f'\tTop {k}: {100 * self.data_loader[ln].dataset.top_k(score, k):.2f}%'
)
if save_score:
with open(
'{}/epoch{}_{}_score.pkl'.format(
self.arg.work_dir, epoch + 1, ln), 'wb') as f:
pickle.dump(score_dict, f)
# Empty cache after evaluation
torch.cuda.empty_cache()
def start(self):
if self.arg.phase == 'train':
self.print_log(f'Parameters:\n{pprint.pformat(vars(self.arg))}\n')
self.print_log(
f'Model total number of params: {count_params(self.model)}')
self.global_step = self.arg.start_epoch * len(
self.data_loader['train']) / self.arg.batch_size
for epoch in range(self.arg.start_epoch, self.arg.num_epoch):
save_model = ((epoch + 1) % self.arg.save_interval
== 0) or (epoch + 1 == self.arg.num_epoch)
self.train(epoch, save_model=save_model)
self.eval(epoch,
save_score=self.arg.save_score,
loader_name=['test'])
num_params = sum(p.numel() for p in self.model.parameters()
if p.requires_grad)
self.print_log(f'Best accuracy: {self.best_acc}')
self.print_log(f'Epoch number: {self.best_acc_epoch}')
self.print_log(f'Model name: {self.arg.work_dir}')
self.print_log(f'Model total number of params: {num_params}')
self.print_log(f'Weight decay: {self.arg.weight_decay}')
self.print_log(f'Base LR: {self.arg.base_lr}')
self.print_log(f'Batch Size: {self.arg.batch_size}')
self.print_log(
f'Forward Batch Size: {self.arg.forward_batch_size}')
self.print_log(f'Test Batch Size: {self.arg.test_batch_size}')
elif self.arg.phase == 'test':
if not self.arg.test_feeder_args['debug']:
wf = os.path.join(self.arg.work_dir, 'wrong-samples.txt')
rf = os.path.join(self.arg.work_dir, 'right-samples.txt')
else:
wf = rf = None
if self.arg.weights is None:
raise ValueError('Please appoint --weights.')
self.print_log(f'Model: {self.arg.model}')
self.print_log(f'Weights: {self.arg.weights}')
self.eval(epoch=0,
save_score=self.arg.save_score,
loader_name=['test'],
wrong_file=wf,
result_file=rf)
self.print_log('Done.\n')
def main():
global best_RMSE
lw = utils_func.LossWise(args.api_key, args.losswise_tag, args.epochs - 1)
# set logger
log = logger.setup_logger(os.path.join(args.save_path, 'training.log'))
for key, value in sorted(vars(args).items()):
log.info(str(key) + ': ' + str(value))
# set tensorboard
writer = SummaryWriter(args.save_path + '/tensorboardx')
# Data Loader
if args.generate_depth_map:
TrainImgLoader = None
import dataloader.KITTI_submission_loader as KITTI_submission_loader
TestImgLoader = torch.utils.data.DataLoader(
KITTI_submission_loader.SubmiteDataset(args.datapath,
args.data_list,
args.dynamic_bs),
batch_size=args.bval,
shuffle=False,
num_workers=args.workers,
drop_last=False)
elif args.dataset == 'kitti':
train_data, val_data = KITTILoader3D.dataloader(
args.datapath,
args.split_train,
args.split_val,
kitti2015=args.kitti2015)
TrainImgLoader = torch.utils.data.DataLoader(
KITTILoader_dataset3d.myImageFloder(train_data,
True,
kitti2015=args.kitti2015,
dynamic_bs=args.dynamic_bs),
batch_size=args.btrain,
shuffle=True,
num_workers=8,
drop_last=False,
pin_memory=True)
TestImgLoader = torch.utils.data.DataLoader(
KITTILoader_dataset3d.myImageFloder(val_data,
False,
kitti2015=args.kitti2015,
dynamic_bs=args.dynamic_bs),
batch_size=args.bval,
shuffle=False,
num_workers=8,
drop_last=False,
pin_memory=True)
else:
train_data, val_data = listflowfile.dataloader(args.datapath)
TrainImgLoader = torch.utils.data.DataLoader(
SceneFlowLoader.myImageFloder(train_data,
True,
calib=args.calib_value),
batch_size=args.btrain,
shuffle=True,
num_workers=8,
drop_last=False)
TestImgLoader = torch.utils.data.DataLoader(
SceneFlowLoader.myImageFloder(val_data,
False,
calib=args.calib_value),
batch_size=args.bval,
shuffle=False,
num_workers=8,
drop_last=False)
# Load Model
if args.data_type == 'disparity':
model = disp_models.__dict__[args.arch](maxdisp=args.maxdisp)
elif args.data_type == 'depth':
model = models.__dict__[args.arch](maxdepth=args.maxdepth,
maxdisp=args.maxdisp,
down=args.down,
scale=args.scale)
else:
log.info('Model is not implemented')
assert False
# Number of parameters
log.info('Number of model parameters: {}'.format(
sum([p.data.nelement() for p in model.parameters()])))
model = nn.DataParallel(model).cuda()
torch.backends.cudnn.benchmark = True
# Optimizer
optimizer = optim.Adam(model.parameters(), lr=args.lr, betas=(0.9, 0.999))
scheduler = MultiStepLR(optimizer,
milestones=args.lr_stepsize,
gamma=args.lr_gamma)
if args.pretrain:
if os.path.isfile(args.pretrain):
log.info("=> loading pretrain '{}'".format(args.pretrain))
checkpoint = torch.load(args.pretrain)
model.load_state_dict(checkpoint['state_dict'], strict=False)
else:
log.info('[Attention]: Do not find checkpoint {}'.format(
args.pretrain))
if args.resume:
if os.path.isfile(args.resume):
log.info("=> loading checkpoint '{}'".format(args.resume))
checkpoint = torch.load(args.resume)
model.load_state_dict(checkpoint['state_dict'])
args.start_epoch = checkpoint['epoch']
optimizer.load_state_dict(checkpoint['optimizer'])
best_RMSE = checkpoint['best_RMSE']
scheduler.load_state_dict(checkpoint['scheduler'])
log.info("=> loaded checkpoint '{}' (epoch {})".format(
args.resume, checkpoint['epoch']))
else:
log.info('[Attention]: Do not find checkpoint {}'.format(
args.resume))
if args.generate_depth_map:
os.makedirs(args.save_path + '/depth_maps/' + args.data_tag,
exist_ok=True)
tqdm_eval_loader = tqdm(TestImgLoader, total=len(TestImgLoader))
for batch_idx, (imgL_crop, imgR_crop, calib, H, W,
filename) in enumerate(tqdm_eval_loader):
pred_disp = inference(imgL_crop, imgR_crop, calib, model)
for idx, name in enumerate(filename):
np.save(
args.save_path + '/depth_maps/' + args.data_tag + '/' +
name, pred_disp[idx][-H[idx]:, :W[idx]])
import sys
sys.exit()
# evaluation
if args.evaluate:
evaluate_metric = utils_func.Metric()
## training ##
for batch_idx, (imgL_crop, imgR_crop, disp_crop_L,
calib) in enumerate(TestImgLoader):
start_time = time.time()
test(imgL_crop, imgR_crop, disp_crop_L, calib, evaluate_metric,
optimizer, model)
log.info(
evaluate_metric.print(batch_idx, 'EVALUATE') +
' Time:{:.3f}'.format(time.time() - start_time))
import sys
sys.exit()
for epoch in range(args.start_epoch, args.epochs):
scheduler.step()
## training ##
train_metric = utils_func.Metric()
tqdm_train_loader = tqdm(TrainImgLoader, total=len(TrainImgLoader))
for batch_idx, (imgL_crop, imgR_crop, disp_crop_L,
calib) in enumerate(tqdm_train_loader):
# start_time = time.time()
train(imgL_crop, imgR_crop, disp_crop_L, calib, train_metric,
optimizer, model, epoch)
# log.info(train_metric.print(batch_idx, 'TRAIN') + ' Time:{:.3f}'.format(time.time() - start_time))
log.info(train_metric.print(0, 'TRAIN Epoch' + str(epoch)))
train_metric.tensorboard(writer, epoch, token='TRAIN')
lw.update(train_metric.get_info(), epoch, 'Train')
## testing ##
is_best = False
if epoch == 0 or ((epoch + 1) % args.eval_interval) == 0:
test_metric = utils_func.Metric()
tqdm_test_loader = tqdm(TestImgLoader, total=len(TestImgLoader))
for batch_idx, (imgL_crop, imgR_crop, disp_crop_L,
calib) in enumerate(tqdm_test_loader):
# start_time = time.time()
test(imgL_crop, imgR_crop, disp_crop_L, calib, test_metric,
optimizer, model)
# log.info(test_metric.print(batch_idx, 'TEST') + ' Time:{:.3f}'.format(time.time() - start_time))
log.info(test_metric.print(0, 'TEST Epoch' + str(epoch)))
test_metric.tensorboard(writer, epoch, token='TEST')
lw.update(test_metric.get_info(), epoch, 'Test')
# SAVE
is_best = test_metric.RMSELIs.avg < best_RMSE
best_RMSE = min(test_metric.RMSELIs.avg, best_RMSE)
save_checkpoint(
{
'epoch': epoch + 1,
'arch': args.arch,
'state_dict': model.state_dict(),
'best_RMSE': best_RMSE,
'scheduler': scheduler.state_dict(),
'optimizer': optimizer.state_dict(),
},
is_best,
epoch,
folder=args.save_path)
lw.done()
def train(args):
use_gpu = torch.cuda.is_available()
num_gpu = list(range(torch.cuda.device_count()))
assert use_gpu, "Please use gpus."
logger = get_logger(name=args.shortname)
display_args(args, logger)
# create dir for saving
args.saverootpath = osp.abspath(args.saverootpath)
savepath = osp.join(args.saverootpath, args.run_name)
if not osp.exists(savepath):
os.makedirs(savepath)
train_file = os.path.join(args.image_sets,
"{}.txt".format(args.train_dataset))
n_features = 35 if args.no_reflex else 36
if args.pixor_fusion:
if args.e2e:
train_data = KittiDataset_Fusion_stereo(
txt_file=train_file,
flip_rate=args.flip_rate,
lidar_dir=args.eval_lidar_dir,
label_dir=args.eval_label_dir,
calib_dir=args.eval_calib_dir,
image_dir=args.eval_image_dir,
root_dir=args.root_dir,
only_feature=args.no_cal_loss,
split=args.split,
image_downscale=args.image_downscale,
crop_height=args.crop_height,
random_shift_scale=args.random_shift_scale)
else:
train_data = KittiDataset_Fusion(
txt_file=train_file,
flip_rate=args.flip_rate,
lidar_dir=args.train_lidar_dir,
label_dir=args.train_label_dir,
calib_dir=args.train_calib_dir,
n_features=n_features,
random_shift_scale=args.random_shift_scale,
root_dir=args.root_dir,
image_downscale=args.image_downscale)
else:
train_data = KittiDataset(txt_file=train_file,
flip_rate=args.flip_rate,
lidar_dir=args.train_lidar_dir,
label_dir=args.train_label_dir,
calib_dir=args.train_calib_dir,
image_dir=args.train_image_dir,
n_features=n_features,
random_shift_scale=args.random_shift_scale,
root_dir=args.root_dir)
train_loader = DataLoader(train_data,
batch_size=args.batch_size,
shuffle=True,
num_workers=8)
eval_data, eval_loader = get_eval_dataset(args)
if args.pixor_fusion:
pixor = PixorNet_Fusion(n_features,
groupnorm=args.groupnorm,
resnet_type=args.resnet_type,
image_downscale=args.image_downscale,
resnet_chls=args.resnet_chls)
else:
pixor = PixorNet(n_features, groupnorm=args.groupnorm)
ts = time.time()
pixor = pixor.cuda()
pixor = nn.DataParallel(pixor, device_ids=num_gpu)
class_criterion = nn.BCELoss(reduction='none')
reg_criterion = nn.SmoothL1Loss(reduction='none')
if args.opt_method == 'RMSprop':
optimizer = optim.RMSprop(pixor.parameters(),
lr=args.lr,
momentum=args.momentum,
weight_decay=args.weight_decay)
else:
raise NotImplementedError()
depth_model = PSMNet(maxdepth=80, maxdisp=192, down=args.depth_down)
depth_model = nn.DataParallel(depth_model).cuda()
# torch.backends.cudnn.benchmark = True
depth_optimizer = optim.Adam(depth_model.parameters(),
lr=args.depth_lr,
betas=(0.9, 0.999))
grid_3D_extended = get_3D_global_grid_extended(700, 800, 35).cuda().float()
if args.depth_pretrain:
if os.path.isfile(args.depth_pretrain):
logger.info("=> loading depth pretrain '{}'".format(
args.depth_pretrain))
checkpoint = torch.load(args.depth_pretrain)
depth_model.load_state_dict(checkpoint['state_dict'])
depth_optimizer.load_state_dict(checkpoint['optimizer'])
else:
logger.info('[Attention]: Do not find checkpoint {}'.format(
args.depth_pretrain))
depth_scheduler = MultiStepLR(depth_optimizer,
milestones=args.depth_lr_stepsize,
gamma=args.depth_lr_gamma)
if args.pixor_pretrain:
if os.path.isfile(args.pixor_pretrain):
logger.info("=> loading depth pretrain '{}'".format(
args.pixor_pretrain))
checkpoint = torch.load(args.pixor_pretrain)
pixor.load_state_dict(checkpoint['state_dict'])
optimizer.load_state_dict(checkpoint['optimizer'])
optimizer.param_groups[0]['lr'] *= 10
else:
logger.info('[Attention]: Do not find checkpoint {}'.format(
args.pixor_pretrain))
scheduler = lr_scheduler.MultiStepLR(optimizer,
milestones=args.lr_milestones,
gamma=args.gamma)
if args.resume:
logger.info("Resuming...")
checkpoint_path = osp.join(savepath, args.checkpoint)
if os.path.isfile(checkpoint_path):
logger.info("Loading checkpoint '{}'".format(checkpoint_path))
checkpoint = torch.load(checkpoint_path)
pixor.load_state_dict(checkpoint['state_dict'])
optimizer.load_state_dict(checkpoint['optimizer'])
scheduler.load_state_dict(checkpoint['scheduler'])
depth_model.load_state_dict(checkpoint['depth_state_dict'])
depth_optimizer.load_state_dict(checkpoint['depth_optimizer'])
depth_scheduler.load_state_dict(checkpoint['depth_scheduler'])
start_epoch = checkpoint['epoch'] + 1
logger.info(
"Resumed successfully from epoch {}.".format(start_epoch))
else:
logger.warning("Model {} not found. "
"Train from scratch".format(checkpoint_path))
start_epoch = 0
else:
start_epoch = 0
class_criterion = class_criterion.cuda()
reg_criterion = reg_criterion.cuda()
processes = []
last_eval_epoches = []
for epoch in range(start_epoch, args.epochs):
pixor.train()
depth_model.train()
scheduler.step()
depth_scheduler.step()
ts = time.time()
logger.info("Start epoch {}, depth lr {:.6f} pixor lr {:.7f}".format(
epoch, depth_optimizer.param_groups[0]['lr'],
optimizer.param_groups[0]['lr']))
avg_class_loss = AverageMeter()
avg_reg_loss = AverageMeter()
avg_total_loss = AverageMeter()
train_metric = utils_func.Metric()
for iteration, batch in enumerate(train_loader):
if args.pixor_fusion:
if not args.e2e:
inputs = batch['X'].cuda()
else:
imgL = batch['imgL'].cuda()
imgR = batch['imgR'].cuda()
f = batch['f']
depth_map = batch['depth_map'].cuda()
idxx = batch['idx']
h_shift = batch['h_shift']
ori_shape = batch['ori_shape']
a_shift = batch['a_shift']
flip = batch['flip']
images = batch['image'].cuda()
img_index = batch['img_index'].cuda()
bev_index = batch['bev_index'].cuda()
else:
inputs = batch['X'].cuda()
class_labels = batch['cl'].cuda()
reg_labels = batch['rl'].cuda()
if args.pixor_fusion:
if not args.e2e:
class_outs, reg_outs = pixor(inputs, images, img_index,
bev_index)
else:
depth_loss, depth_map = forward_depth_model(
imgL, imgR, depth_map, f, train_metric, depth_model)
inputs = []
for i in range(depth_map.shape[0]):
calib = utils_func.torchCalib(
train_data.dataset.get_calibration(idxx[i]),
h_shift[i])
H, W = ori_shape[0][i], ori_shape[1][i]
depth = depth_map[i][-H:, :W]
ptc = depth_to_pcl(calib, depth, max_high=1.)
ptc = calib.lidar_to_rect(ptc[:, 0:3])
if torch.abs(a_shift[i]).item() > 1e-6:
roty = utils_func.roty_pth(a_shift[i]).cuda()
ptc = torch.mm(ptc, roty.t())
voxel = gen_feature_diffused_tensor(
ptc,
700,
800,
grid_3D_extended,
diffused=args.diffused)
if flip[i] > 0:
voxel = torch.flip(voxel, [2])
inputs.append(voxel)
inputs = torch.stack(inputs)
class_outs, reg_outs = pixor(inputs, images, img_index,
bev_index)
else:
class_outs, reg_outs = pixor(inputs)
class_outs = class_outs.squeeze(1)
class_loss, reg_loss, loss = \
compute_loss(epoch, class_outs, reg_outs,
class_labels, reg_labels, class_criterion,
reg_criterion, args)
avg_class_loss.update(class_loss.item())
avg_reg_loss.update(reg_loss.item() \
if not isinstance(reg_loss, int) else reg_loss)
avg_total_loss.update(loss.item())
optimizer.zero_grad()
depth_optimizer.zero_grad()
loss = depth_loss + 0.1 * loss
loss.backward()
optimizer.step()
depth_optimizer.step()
if not isinstance(reg_loss, int):
reg_loss = reg_loss.item()
if iteration % args.logevery == 0:
logger.info("epoch {:d}, iter {:d}, class_loss: {:.5f},"
" reg_loss: {:.5f}, loss: {:.5f}".format(
epoch, iteration, avg_class_loss.avg,
avg_reg_loss.avg, avg_total_loss.avg))
logger.info(train_metric.print(epoch, iteration))
logger.info("Finish epoch {}, time elapsed {:.3f} s".format(
epoch,
time.time() - ts))
if epoch % args.eval_every_epoch == 0 and epoch >= args.start_eval:
logger.info("Evaluation begins at epoch {}".format(epoch))
evaluate(eval_data,
eval_loader,
pixor,
depth_model,
args.batch_size,
gpu=use_gpu,
logger=logger,
args=args,
epoch=epoch,
processes=processes,
grid_3D_extended=grid_3D_extended)
if args.run_official_evaluate:
last_eval_epoches.append((epoch, 7))
last_eval_epoches.append((epoch, 5))
if len(last_eval_epoches) > 0:
for e, iou in last_eval_epoches[:]:
predicted_results = osp.join(args.saverootpath, args.run_name,
'predicted_label_{}'.format(e),
'outputs_{:02d}.txt'.format(iou))
if osp.exists(predicted_results):
with open(predicted_results, 'r') as f:
for line in f.readlines():
if line.startswith('car_detection_ground AP'):
results = [
float(num)
for num in line.strip('\n').split(' ')[-3:]
]
last_eval_epoches.remove((e, iou))
if epoch % args.save_every == 0:
saveto = osp.join(savepath, "checkpoint_{}.pth.tar".format(epoch))
torch.save(
{
'state_dict': pixor.state_dict(),
'optimizer': optimizer.state_dict(),
'scheduler': scheduler.state_dict(),
'depth_state_dict': depth_model.state_dict(),
'depth_optimizer': depth_optimizer.state_dict(),
'depth_scheduler': depth_scheduler.state_dict(),
'epoch': epoch
}, saveto)
logger.info("model saved to {}".format(saveto))
symlink_force(saveto, osp.join(savepath, "checkpoint.pth.tar"))
for p in processes:
if p.wait() != 0:
logger.warning("There was an error")
if len(last_eval_epoches) > 0:
for e, iou in last_eval_epoches[:]:
predicted_results = osp.join(args.saverootpath, args.run_name,
'predicted_label_{}'.format(e),
'outputs_{:02d}.txt'.format(iou))
if osp.exists(predicted_results):
with open(predicted_results, 'r') as f:
for line in f.readlines():
if line.startswith('car_detection_ground AP'):
results = [
float(num)
for num in line.strip('\n').split(' ')[-3:]
]
last_eval_epoches.remove((e, iou))