#!/usr/bin/python
# -*- coding:utf-8 -*-
"""
@author:fangpf
@time: 2020/09/28
"""
import torch
from torch.backends import cudnn
from data import cfg_re50
from models.retinaface import RetinaFace
from utils.net_utils import load_model, image_process, process_face_data
cfg = cfg_re50
retina_trained_model = './weights/Resnet50_Final.pth'
retina_net = RetinaFace(cfg=cfg, phase='test')
retina_net = load_model(retina_net, retina_trained_model, False)
retina_net = retina_net.cuda(0)
retina_net.eval()
cudnn.benchmark = True
device = torch.device("cuda")
def face_detection(im):
resize = 1
im, im_width, im_height, scale = image_process(im, device)
loc, conf, landms = retina_net(im)
result_data = process_face_data(cfg, im, im_height, im_width, loc, scale,
conf, landms, resize)
return result_data
# create new OrderedDict that does not contain `module.`
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
head = k[:7]
if head == 'module.':
name = k[7:] # remove `module.`
else:
name = k
new_state_dict[name] = v
net.load_state_dict(new_state_dict)
if num_gpu > 1 and gpu_train:
net = torch.nn.DataParallel(net).cuda()
else:
net = net.cuda()
cudnn.benchmark = True
optimizer = optim.SGD(net.parameters(),
lr=initial_lr,
momentum=momentum,
weight_decay=weight_decay)
criterion = MultiBoxLoss(num_classes, 0.35, True, 0, True, 7, 0.35, False)
priorbox = PriorBox(cfg, image_size=(img_dim, img_dim))
with torch.no_grad():
priors = priorbox.forward()
priors = priors.cuda()
def main():
global args
global minmum_loss
args.gpu = 0
args.world_size = 1
if args.distributed:
args.gpu = args.local_rank % torch.cuda.device_count()
torch.cuda.set_device(args.gpu)
torch.distributed.init_process_group(backend='nccl',
init_method='env://')
args.world_size = torch.distributed.get_world_size()
args.total_batch_size = args.world_size * args.batch_size
# build dsfd network
print("Building net...")
model = RetinaFace(cfg=cfg)
print("Printing net...")
# for multi gpu
if args.distributed:
model = torch.nn.parallel.DistributedDataParallel(model)
model = model.cuda()
# optimizer and loss function
optimizer = optim.SGD(model.parameters(),
lr=args.lr,
momentum=args.momentum,
weight_decay=args.weight_decay)
criterion = MultiBoxLoss(cfg['num_classes'], 0.35, True, 0, True, 7, 0.35,
False)
## dataset
print("loading dataset")
train_dataset = WiderFaceDetection(
args.training_dataset, preproc(cfg['image_size'], cfg['rgb_mean']))
train_loader = data.DataLoader(train_dataset,
args.batch_size,
num_workers=args.num_workers,
shuffle=True,
collate_fn=detection_collate,
pin_memory=True)
# 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,
map_location=lambda storage, loc: storage.cuda(args.gpu))
args.start_epoch = checkpoint['epoch']
minmum_loss = checkpoint['minmum_loss']
model.load_state_dict(checkpoint['state_dict'])
optimizer.load_state_dict(checkpoint['optimizer'])
print("=> loaded checkpoint '{}' (epoch {})".format(
args.resume, checkpoint['epoch']))
else:
print("=> no checkpoint found at '{}'".format(args.resume))
print('Using the specified args:')
print(args)
# load PriorBox
print("Load priorbox")
with torch.no_grad():
priorbox = PriorBox(cfg=cfg,
image_size=(cfg['image_size'], cfg['image_size']))
priors = priorbox.forward()
priors = priors.cuda()
print("start traing")
for epoch in range(args.start_epoch, args.epochs):
# train for one epoch
train_loss = train(train_loader, model, priors, criterion, optimizer,
epoch)
if args.local_rank == 0:
is_best = train_loss < minmum_loss
minmum_loss = min(train_loss, minmum_loss)
save_checkpoint(
{
'epoch': epoch + 1,
'state_dict': model.state_dict(),
'best_prec1': minmum_loss,
'optimizer': optimizer.state_dict(),
}, is_best, epoch)
def main():
args = get_args()
if not os.path.exists(args.save_folder):
os.mkdir(args.save_folder)
cfg = None
if args.network == "mobile0.25":
cfg = cfg_mnet
elif args.network == "resnet50":
cfg = cfg_re50
rgb_mean = (104, 117, 123) # bgr order
num_classes = 2
img_dim = cfg["image_size"]
num_gpu = cfg["ngpu"]
batch_size = cfg["batch_size"]
max_epoch = cfg["epoch"]
gpu_train = cfg["gpu_train"]
num_workers = args.num_workers
momentum = args.momentum
weight_decay = args.weight_decay
initial_lr = args.lr
gamma = args.gamma
training_dataset = args.training_dataset
save_folder = args.save_folder
net = RetinaFace(cfg=cfg)
print("Printing net...")
print(net)
if args.resume_net is not None:
print("Loading resume network...")
state_dict = torch.load(args.resume_net)
# create new OrderedDict that does not contain `module.`
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
head = k[:7]
if head == "module.":
name = k[7:] # remove `module.`
else:
name = k
new_state_dict[name] = v
net.load_state_dict(new_state_dict)
if num_gpu > 1 and gpu_train:
net = torch.nn.DataParallel(net).cuda()
else:
net = net.cuda()
cudnn.benchmark = True
optimizer = optim.SGD(net.parameters(),
lr=initial_lr,
momentum=momentum,
weight_decay=weight_decay)
criterion = MultiBoxLoss(num_classes, 0.35, True, 0, True, 7, 0.35, False)
priorbox = PriorBox(cfg, image_size=(img_dim, img_dim))
with torch.no_grad():
priors = priorbox.forward()
priors = priors.cuda()
net.train()
epoch = 0 + args.resume_epoch
print("Loading Dataset...")
dataset = WiderFaceDetection(training_dataset, preproc(img_dim, rgb_mean))
epoch_size = math.ceil(len(dataset) / batch_size)
max_iter = max_epoch * epoch_size
stepvalues = (cfg["decay1"] * epoch_size, cfg["decay2"] * epoch_size)
step_index = 0
if args.resume_epoch > 0:
start_iter = args.resume_epoch * epoch_size
else:
start_iter = 0
for iteration in range(start_iter, max_iter):
if iteration % epoch_size == 0:
# create batch iterator
batch_iterator = iter(
data.DataLoader(dataset,
batch_size,
shuffle=True,
num_workers=num_workers,
collate_fn=detection_collate))
if (epoch % 10 == 0 and epoch > 0) or (epoch % 5 == 0
and epoch > cfg["decay1"]):
torch.save(
net.state_dict(), save_folder + cfg["name"] + "_epoch_" +
str(epoch) + ".pth")
epoch += 1
load_t0 = time.time()
if iteration in stepvalues:
step_index += 1
lr = adjust_learning_rate(initial_lr, optimizer, gamma, epoch,
step_index, iteration, epoch_size)
# load train data
images, targets = next(batch_iterator)
images = images.cuda()
targets = [anno.cuda() for anno in targets]
# forward
out = net(images)
# backprop
optimizer.zero_grad()
loss_l, loss_c, loss_landm = criterion(out, priors, targets)
loss = cfg["loc_weight"] * loss_l + loss_c + loss_landm
loss.backward()
optimizer.step()
load_t1 = time.time()
batch_time = load_t1 - load_t0
eta = int(batch_time * (max_iter - iteration))
print(
"Epoch:{}/{} || Epochiter: {}/{} || Iter: {}/{} || Loc: {:.4f} Cla: {:.4f} Landm: {:.4f} "
"|| LR: {:.8f} || Batchtime: {:.4f} s || ETA: {}".format(
epoch,
max_epoch,
(iteration % epoch_size) + 1,
epoch_size,
iteration + 1,
max_iter,
loss_l.item(),
loss_c.item(),
loss_landm.item(),
lr,
batch_time,
str(datetime.timedelta(seconds=eta)),
))
torch.save(net.state_dict(), save_folder + cfg["name"] + "_Final.pth")
def main(args):
# dataset
rgb_mean = (104, 117, 123) # bgr order
dataset = MyDataset(args.txt_path, args.txt_path2,
preproc(args.img_size, rgb_mean))
dataloader = DataLoader(dataset,
args.bs,
shuffle=True,
num_workers=args.num_workers,
collate_fn=detection_collate,
pin_memory=True)
# net and load
net = RetinaFace(cfg=cfg_mnet)
if args.resume_net is not None:
print('Loading resume network...')
state_dict = load_normal(args.resume_net)
net.load_state_dict(state_dict)
print('Loading success!')
net = net.cuda()
if torch.cuda.device_count() >= 1 and args.multi_gpu:
net = torch.nn.DataParallel(net)
# optimizer and loss
optimizer = optim.SGD(net.parameters(),
lr=args.lr,
momentum=0.9,
weight_decay=5e-4)
scheduler = WarmupCosineSchedule(optimizer,
args.warm_epoch, args.max_epoch,
len(dataloader), args.cycles)
num_classes = 2
criterion = MultiBoxLoss(num_classes, 0.35, True, 0, True, 7, 0.35, False)
# priorbox
priorbox = PriorBox(cfg_mnet, image_size=(args.img_size, args.img_size))
with torch.no_grad():
priors = priorbox.forward()
priors = priors.cuda()
# save folder
time_str = datetime.datetime.strftime(datetime.datetime.now(),
'%y-%m-%d-%H-%M-%S')
args.save_folder = os.path.join(args.save_folder, time_str)
if not os.path.exists(args.save_folder):
os.makedirs(args.save_folder)
logger = logger_init(args.save_folder)
logger.info(args)
# train
for i_epoch in range(args.max_epoch):
net.train()
for i_iter, data in enumerate(dataloader):
load_t0 = time.time()
images, targets = data[:2]
images = images.cuda()
targets = [anno.cuda() for anno in targets]
# forward
out = net(images)
# backward
optimizer.zero_grad()
loss_l, loss_c, loss_landm = criterion(out, priors, targets)
loss = cfg_mnet['loc_weight'] * loss_l + loss_c + loss_landm
loss.backward()
optimizer.step()
scheduler.step()
# print info
load_t1 = time.time()
batch_time = load_t1 - load_t0
eta = int(batch_time * (len(dataloader) *
(args.max_epoch - i_epoch) - i_iter))
logger.info('Epoch:{}/{} || Iter: {}/{} || '
'Loc: {:.4f} Cla: {:.4f} Landm: {:.4f} || '
'LR: {:.8f} || '
'Batchtime: {:.4f} s || '
'ETA: {}'.format(
i_epoch + 1, args.max_epoch, i_iter + 1,
len(dataloader), loss_l.item(), loss_c.item(),
loss_landm.item(),
optimizer.state_dict()['param_groups'][0]['lr'],
batch_time, str(datetime.timedelta(seconds=eta))))
if (i_epoch + 1) % args.save_fre == 0:
save_name = 'mobile0.25_' + str(i_epoch + 1) + '.pth'
torch.save(net.state_dict(),
os.path.join(args.save_folder, save_name))
def train():
# dataset = WiderFaceDetection( training_dataset,preproc(img_dim, rgb_mean), landmark_num)
# dataset = Dataset300W(training_dataset, preproc(img_dim, rgb_mean))
dataset = Dataset300W(training_dataset, preproc(img_dim, rgb_mean),
landmark_indices)
dataloader = data.DataLoader(dataset,
batch_size,
shuffle=True,
num_workers=num_workers,
collate_fn=detection_collate)
net = RetinaFace(cfg=cfg)
print("Printing net...")
print(net)
if args.resume_net is not None:
print('Loading resume network...')
load_net(net, args.resume_net)
if num_gpu > 1 and gpu_train:
net = torch.nn.DataParallel(net).cuda()
else:
net = net.cuda()
cudnn.benchmark = True
net.train()
epoch = 0 + args.resume_epoch
print('Loading Dataset...')
optimizer = optim.SGD(net.parameters(),
lr=initial_lr,
momentum=momentum,
weight_decay=weight_decay)
criterion = MultiBoxLoss(num_classes, landmark_num, 0.35, True, 0, True, 7,
0.35, False)
priorbox = PriorBox(cfg, image_size=(img_dim, img_dim))
with torch.no_grad():
priors = priorbox.forward()
priors = priors.cuda()
epoch_size = math.ceil(len(dataset) / batch_size)
max_iter = max_epoch * epoch_size
stepvalues = (cfg['decay1'] * epoch_size, cfg['decay2'] * epoch_size)
step_index = 0
if args.resume_epoch > 0:
start_iter = args.resume_epoch * epoch_size
else:
start_iter = 0
for iteration in range(start_iter, max_iter):
if iteration % epoch_size == 0:
# create batch iterator
batch_iterator = iter(dataloader)
if (epoch % 10 == 0 and epoch > 0) or (epoch % 5 == 0
and epoch > cfg['decay1']):
fullname = os.path.join(
save_folder, cfg['name'] + '_landmark' +
str(landmark_num) + '_epoch_' + str(epoch) + '.pth')
torch.save(net.state_dict(), fullname)
epoch += 1
load_t0 = time.time()
if iteration in stepvalues:
step_index += 1
lr = adjust_learning_rate(optimizer, gamma, epoch, step_index,
iteration, epoch_size)
# load train data
images, targets = next(batch_iterator)
images = images.cuda()
targets = [anno.cuda() for anno in targets]
# forward
out = net(images)
# backprop
optimizer.zero_grad()
loss_l, loss_c, loss_landm = criterion(out, priors, targets)
loss = cfg['loc_weight'] * loss_l + loss_c + cfg[
'landmark_weight'] * loss_landm
loss.backward()
optimizer.step()
load_t1 = time.time()
batch_time = load_t1 - load_t0
eta = int(batch_time * (max_iter - iteration))
print(
'Epoch:{}/{} || Epochiter: {}/{} || Iter: {}/{} || Loc: {:.4f} Cla: {:.4f} Landm: {:.4f} || LR: {:.8f} || Batchtime: {:.4f} s || ETA: {}'
.format(epoch, max_epoch, (iteration % epoch_size) + 1, epoch_size,
iteration + 1, max_iter, loss_l.item(), loss_c.item(),
loss_landm.item(), lr, batch_time,
str(datetime.timedelta(seconds=eta))))
fullname = os.path.join(
save_folder,
cfg['name'] + '_landmark' + str(landmark_num) + '_Final.pth')
torch.save(net.state_dict(), fullname)
print("final finished!")
def Train(self):
self.setup()
cfg = self.system_dict["local"]["cfg"]
print(cfg)
rgb_mean = (104, 117, 123) # bgr order
num_classes = 2
img_dim = cfg['image_size']
num_gpu = cfg['ngpu']
batch_size = cfg['batch_size']
max_epoch = cfg['epoch']
gpu_train = cfg['gpu_train']
num_workers = self.system_dict["params"]["num_workers"]
momentum = self.system_dict["params"]["momentum"]
weight_decay = self.system_dict["params"]["weight_decay"]
initial_lr = self.system_dict["params"]["lr"]
gamma = self.system_dict["params"]["gamma"]
save_folder = self.system_dict["params"]["save_folder"]
print("Loading Network...")
net = RetinaFace(cfg=cfg)
if self.system_dict["params"]["resume_net"] is not None:
print('Loading resume network...')
state_dict = torch.load(self.system_dict["params"]["resume_net"])
# create new OrderedDict that does not contain `module.`
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
head = k[:7]
if head == 'module.':
name = k[7:] # remove `module.`
else:
name = k
new_state_dict[name] = v
net.load_state_dict(new_state_dict)
if num_gpu > 1 and gpu_train:
net = torch.nn.DataParallel(net).cuda()
else:
net = net.cuda()
cudnn.benchmark = True
print("Done...")
optimizer = optim.SGD(net.parameters(),
lr=initial_lr,
momentum=momentum,
weight_decay=weight_decay)
criterion = MultiBoxLoss(num_classes, 0.35, True, 0, True, 7, 0.35,
False)
priorbox = PriorBox(cfg, image_size=(img_dim, img_dim))
with torch.no_grad():
priors = priorbox.forward()
priors = priors.cuda()
net.train()
epoch = 0 + self.system_dict["params"]["resume_epoch"]
dataset = self.system_dict["local"]["dataset"]
epoch_size = math.ceil(len(dataset) / batch_size)
max_iter = max_epoch * epoch_size
stepvalues = (cfg['decay1'] * epoch_size, cfg['decay2'] * epoch_size)
step_index = 0
if self.system_dict["params"]["resume_epoch"] > 0:
start_iter = self.system_dict["params"]["resume_epoch"] * epoch_size
else:
start_iter = 0
for iteration in range(start_iter, max_iter):
if iteration % epoch_size == 0:
# create batch iterator
batch_iterator = iter(
data.DataLoader(dataset,
batch_size,
shuffle=True,
num_workers=num_workers,
collate_fn=detection_collate))
torch.save(
net.state_dict(),
save_folder + "/" + cfg['name'] + '_intermediate.pth')
epoch += 1
load_t0 = time.time()
if iteration in stepvalues:
step_index += 1
lr = self.adjust_learning_rate(optimizer, gamma, epoch, step_index,
iteration, epoch_size, initial_lr)
# load train data
images, targets = next(batch_iterator)
images = images.cuda()
targets = [anno.cuda() for anno in targets]
# forward
out = net(images)
# backprop
optimizer.zero_grad()
loss_l, loss_c, loss_landm = criterion(out, priors, targets)
loss = cfg['loc_weight'] * loss_l + loss_c + loss_landm
loss.backward()
optimizer.step()
load_t1 = time.time()
batch_time = load_t1 - load_t0
eta = int(batch_time * (max_iter - iteration))
if (iteration % 50 == 0):
print(
'Epoch:{}/{} || Epochiter: {}/{} || Iter: {}/{} || Loc: {:.4f} Cla: {:.4f} Landm: {:.4f} || LR: {:.8f} || Batchtime: {:.4f} s || ETA: {}'
.format(epoch, max_epoch, (iteration % epoch_size) + 1,
epoch_size, iteration + 1, max_iter, loss_l.item(),
loss_c.item(), loss_landm.item(), lr, batch_time,
str(datetime.timedelta(seconds=eta))))
torch.save(net.state_dict(),
save_folder + "/" + cfg['name'] + '_Final.pth')
def train():
net = RetinaFace(cfg=cfg)
logger.info("Printing net...")
logger.info(net)
if args.resume_net is not None:
logger.info('Loading resume network...')
state_dict = torch.load(args.resume_net)
# create new OrderedDict that does not contain `module.`
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
head = k[:7]
if head == 'module.':
name = k[7:] # remove `module.`
else:
name = k
new_state_dict[name] = v
net.load_state_dict(new_state_dict)
if num_gpu > 1 and gpu_train:
net = torch.nn.DataParallel(net).cuda()
else:
net = net.cuda()
cudnn.benchmark = True
priorbox = PriorBox(cfg, image_size=(img_dim, img_dim))
with torch.no_grad():
priors = priorbox.forward()
priors = priors.cuda()
net.train()
epoch = 0 + args.resume_epoch
logger.info('Loading Dataset...')
trainset = WiderFaceDetection(training_dataset, preproc=train_preproc(img_dim, rgb_mean), mode='train')
validset = WiderFaceDetection(training_dataset, preproc=valid_preproc(img_dim, rgb_mean), mode='valid')
# trainset = WiderFaceDetection(training_dataset, transformers=train_transformers(img_dim), mode='train')
# validset = WiderFaceDetection(training_dataset, transformers=valid_transformers(img_dim), mode='valid')
trainloader = data.DataLoader(trainset, batch_size, shuffle=True, num_workers=num_workers, collate_fn=detection_collate)
validloader = data.DataLoader(validset, batch_size, shuffle=True, num_workers=num_workers, collate_fn=detection_collate)
logger.info(f'Totally {len(trainset)} training samples and {len(validset)} validating samples.')
epoch_size = math.ceil(len(trainset) / batch_size)
max_iter = max_epoch * epoch_size
logger.info(f'max_epoch: {max_epoch:d} epoch_size: {epoch_size:d}, max_iter: {max_iter:d}')
# optimizer = optim.SGD(net.parameters(), lr=initial_lr, momentum=momentum, weight_decay=weight_decay)
optimizer = optim.Adam(net.parameters(), lr=initial_lr, weight_decay=weight_decay)
scheduler = _utils.get_linear_schedule_with_warmup(optimizer, int(0.1 * max_iter), max_iter)
criterion = MultiBoxLoss(num_classes, 0.35, True, 0, True, 7, 0.35, False)
stepvalues = (cfg['decay1'] * epoch_size, cfg['decay2'] * epoch_size)
step_index = 0
if args.resume_epoch > 0:
start_iter = args.resume_epoch * epoch_size
else:
start_iter = 0
best_loss_val = float('inf')
for iteration in range(start_iter, max_iter):
if iteration % epoch_size == 0:
# create batch iterator
# batch_iterator = iter(tqdm(trainloader, total=len(trainloader)))
batch_iterator = iter(trainloader)
# if (epoch % 10 == 0 and epoch > 0) or (epoch % 5 == 0 and epoch > cfg['decay1']):
# torch.save(net.state_dict(), save_folder + cfg['name']+ '_epoch_' + str(epoch) + '.pth')
epoch += 1
torch.cuda.empty_cache()
if (valid_steps > 0) and (iteration > 0) and (iteration % valid_steps == 0):
net.eval()
# validation
loss_l_val = 0.
loss_c_val = 0.
loss_landm_val = 0.
loss_val = 0.
# for val_no, (images, targets) in tqdm(enumerate(validloader), total=len(validloader)):
for val_no, (images, targets) in enumerate(validloader):
# load data
images = images.cuda()
targets = [anno.cuda() for anno in targets]
# forward
with torch.no_grad():
out = net(images)
loss_l, loss_c, loss_landm = criterion(out, priors, targets)
loss = cfg['loc_weight'] * loss_l + loss_c + loss_landm
loss_l_val += loss_l.item()
loss_c_val += loss_c.item()
loss_landm_val += loss_landm.item()
loss_val += loss.item()
loss_l_val /= len(validloader)
loss_c_val /= len(validloader)
loss_landm_val /= len(validloader)
loss_val /= len(validloader)
logger.info('[Validating] Epoch:{}/{} || Epochiter: {}/{} || Iter: {}/{} || Total: {:.4f} Loc: {:.4f} Cla: {:.4f} Landm: {:.4f}'
.format(epoch, max_epoch, (iteration % epoch_size) + 1,
epoch_size, iteration + 1, max_iter,
loss_val, loss_l_val, loss_c_val, loss_landm_val))
if loss_val < best_loss_val:
best_loss_val = loss_val
pth = os.path.join(save_folder, cfg['name'] + '_iter_' + str(iteration) + f'_{loss_val:.4f}_' + '.pth')
torch.save(net.state_dict(), pth)
logger.info(f'Best validating loss: {best_loss_val:.4f}, model saved as {pth:s})')
net.train()
load_t0 = time.time()
# if iteration in stepvalues:
# step_index += 1
# lr = adjust_learning_rate(optimizer, gamma, epoch, step_index, iteration, epoch_size)
# load train data
images, targets = next(batch_iterator)
images = images.cuda()
targets = [anno.cuda() for anno in targets]
# forward
out = net(images)
# backprop
optimizer.zero_grad()
loss_l, loss_c, loss_landm = criterion(out, priors, targets)
loss = cfg['loc_weight'] * loss_l + loss_c + loss_landm
loss.backward()
optimizer.step()
scheduler.step()
load_t1 = time.time()
batch_time = load_t1 - load_t0
eta = int(batch_time * (max_iter - iteration))
if iteration % verbose_steps == 0:
logger.info('[Training] Epoch:{}/{} || Epochiter: {}/{} || Iter: {}/{} || Total: {:.4f} Loc: {:.4f} Cla: {:.4f} Landm: {:.4f} || LR: {:.8f} || Batchtime: {:.4f} s || ETA: {}'
.format(epoch, max_epoch, (iteration % epoch_size) + 1,
epoch_size, iteration + 1, max_iter,
loss.item(), loss_l.item(), loss_c.item(), loss_landm.item(),
scheduler.get_last_lr()[-1], batch_time, str(datetime.timedelta(seconds=eta))))
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
head = k[:7]
if head == 'module.':
name = k[7:] # remove `module.`
else:
name = k
new_state_dict[name] = v
teacher_net.load_state_dict(new_state_dict)
if num_gpu > 1 and gpu_train:
net = torch.nn.DataParallel(net).cuda()
teacher_net = torch.nn.DataParallel(teacher_net).cuda()
else:
net = net.cuda()
teacher_net = teacher_net.cuda()
cudnn.benchmark = True
optimizer = optim.SGD(net.parameters(),
lr=initial_lr,
momentum=momentum,
weight_decay=weight_decay)
criterion = MultiBoxLoss2(num_classes, 0.35, True, 0, True, 7, 0.35, False,
args.r_weight, args.c_weight)
priorbox = PriorBox(cfg, image_size=(img_dim, img_dim))
with torch.no_grad():
priors = priorbox.forward()
priors = priors.cuda()
