def build_model(self):
self.net = build_model(self.config.arch)
# 是否将网络搬运至cuda
if self.config.cuda:
self.net = self.net.cuda()
# self.net.train()
# 设置eval状态
self.net.eval() # use_global_stats = True
# 网络权重初始化
self.net.apply(weights_init)
# 载入预训练模型或自行训练模型
if self.config.load == '':
self.net.base.load_pretrained_model(
torch.load(self.config.pretrained_model))
else:
self.net.load_state_dict(torch.load(self.config.load))
# 学习率
self.lr = self.config.lr
# 权值衰减
self.wd = self.config.wd
# 设置优化器
self.optimizer = Adam(filter(lambda p: p.requires_grad,
self.net.parameters()),
lr=self.lr,
weight_decay=self.wd)
# 打印网络结构
self.print_network(self.net, 'PoolNet Structure')
def build_model(self):
net = build_model(self.arch)
if torch.cuda.is_available():
net = net.cuda()
# BN层中有个参数use_global_stats，它表示是否使用caffe内部的均值和方差。
# 训练模型的时候，将BN层use_global_stats设置为false；测试的时候设置为true，不然训练的时候会报nan或者模型不收敛。
net.eval() # use_global_stats = True
net.apply(self.weights_init)
if self.pretrained_model:
net.base.load_pretrained_model(torch.load(self.pretrained_model))
pass
self._print_network(net, 'PoolNet Structure')
return net
def main():
# create the model
model = build_model()
model.to(device)
model.load_state_dict(torch.load(args.restore_from))
# create domintor
model_D1 = FCDiscriminator(num_classes=1)
model_D1.to(device)
model_D1.load_state_dict(torch.load(args.D_restore_from))
up = torch.nn.Upsample(scale_factor=32, mode='bilinear')
sig = torch.nn.Sigmoid()
# labels for adversarial training 两种域的记号
salLabel = 0
edgeLabel = 1
picloader = get_loader(args)
correct = 0
tot = 0
for i_iter, data_batch in enumerate(picloader):
tot += 2
sal_image, edge_image = data_batch['sal_image'], data_batch[
'edge_image']
sal_image, edge_image = Variable(sal_image), Variable(edge_image)
sal_image, edge_image = sal_image.to(device), edge_image.to(device)
sal_pred = model(sal_image)
edge_pred = model(edge_image)
# test D
# for param in model_D1.parameters():
# param.requires_grad = True
ss_out = model_D1(sal_pred)
se_out = model_D1(edge_pred)
if pan(ss_out) == salLabel:
correct += 1
if pan(se_out) == edgeLabel:
correct += 1
if i_iter % 100 == 0:
print('processing %d: %f' % (i_iter, correct / tot))
print(correct / tot)
def build_model(self):
self.net = build_model(self.config.arch)
if self.config.cuda:
self.net = self.net.cuda()
# self.net.train()
self.net.eval() # use_global_stats = True
self.net.apply(weights_init)
if self.config.load == '':
self.net.base.load_pretrained_model(torch.load(self.config.pretrained_model))
else:
self.net.load_state_dict(torch.load(self.config.load))
self.lr = self.config.lr
self.wd = self.config.wd
self.optimizer = Adam(filter(lambda p: p.requires_grad, self.net.parameters()), lr=self.lr, weight_decay=self.wd)
self.print_network(self.net, 'PoolNet Structure')
def main():
gtdir = args.snapshot_dir + 'gt/1/'
preddir = args.snapshot_dir + 'pred/tsy1/1/'
# make dir
if not os.path.exists(gtdir):
os.makedirs(gtdir)
if not os.path.exists(preddir):
os.makedirs(preddir)
# xuan xue you hua
cudnn.enabled = True
cudnn.benchmark = True
# create the model
model = build_model()
model.to(device)
model.train()
model.apply(weights_init)
model.load_state_dict(torch.load(args.restore_from))
picloader = get_loader(args, mode='test')
for i_iter, data_batch in enumerate(picloader):
if i_iter % 50 == 0:
print(i_iter)
sal_image, sal_label = data_batch['sal_image'], data_batch['sal_label']
with torch.no_grad():
sal_image = Variable(sal_image).to(device)
preds = model(sal_image)
pred = np.squeeze(torch.sigmoid(preds).cpu().data.numpy())
label = np.squeeze(sal_label.cpu().data.numpy())
multi_fuse = 255 * pred
label = 255 * label
cv2.imwrite(os.path.join(preddir,
str(i_iter) + '.jpg'), multi_fuse)
cv2.imwrite(os.path.join(gtdir, str(i_iter) + '.png'), label)
def test(arch, model_path, test_loader, result_fold):
Tools.print('Loading trained model from {}'.format(model_path))
net = build_model(arch).cuda()
net.load_state_dict(torch.load(model_path))
net.eval()
time_s = time.time()
img_num = len(test_loader)
for i, data_batch in enumerate(test_loader):
if i % 100 == 0:
Tools.print("test {} {}".format(i, img_num))
images, name, im_size = data_batch['image'], data_batch['name'][
0], np.asarray(data_batch['size'])
with torch.no_grad():
images = torch.Tensor(images).cuda()
pred = net(images)
pred = np.squeeze(torch.sigmoid(pred).cpu().data.numpy()) * 255
cv2.imwrite(os.path.join(result_fold, name[:-4] + '.png'),
pred)
time_e = time.time()
Tools.print('Speed: %f FPS' % (img_num / (time_e - time_s)))
Tools.print('Test Done!')
pass
def main():
# make dir
if not os.path.exists(args.snapshot_dir):
os.makedirs(args.snapshot_dir)
run = 0
while os.path.exists("%s/run-%d" % (args.snapshot_dir, run)):
run += 1
os.mkdir("%s/run-%d" % (args.snapshot_dir, run))
os.mkdir("%s/run-%d/models" % (args.snapshot_dir, run))
args.file_dir = "%s/run-%d/file.txt" % (args.snapshot_dir, run)
args.snapshot_dir = "%s/run-%d/models" % (args.snapshot_dir, run)
# xuan xue you hua
cudnn.enabled = True
cudnn.benchmark = True
# create the model
model = build_model()
model.to(device)
model.train()
model.apply(weights_init)
model.load_state_dict(torch.load(args.restore_from))
# model.base.load_pretrained_model(torch.load(args.pretrained_model))
# create domintor
model_D1 = FCDiscriminator(num_classes=1).to(device)
model_D1.train()
model_D1.apply(weights_init)
# model_D1.load_state_dict(torch.load(args.D_restore_from))
# create optimizer
optimizer = optim.Adam(filter(lambda p: p.requires_grad,
model.parameters()),
lr=args.learning_rate,
weight_decay=args.weight_decay) # 整个模型的优化器
optimizer.zero_grad()
optimizer_D1 = optim.Adam(model_D1.parameters(),
lr=args.learning_rate_D,
betas=(0.9, 0.99))
optimizer_D1.zero_grad()
# uneccessery
bce_loss = torch.nn.BCEWithLogitsLoss()
# start time
with open(args.file_dir, 'a') as f:
f.write('strat time: ' + str(datetime.now()) + '\n\n')
f.write('learning rate: ' + str(args.learning_rate) + '\n')
f.write('learning rate D: ' + str(args.learning_rate_D) + '\n')
f.write('wight decay: ' + str(args.weight_decay) + '\n')
f.write('lambda_adv_target2: ' + str(args.lambda_adv_target2) + '\n\n')
f.write('eptch size: ' + str(args.epotch_size) + '\n')
f.write('batch size: ' + str(args.batch_size) + '\n')
f.write('iter size: ' + str(args.iter_size) + '\n')
f.write('num steps: ' + str(args.num_steps) + '\n\n')
# labels for adversarial training 两种域的记号
salLabel = 0
edgeLabel = 1
picloader = get_loader(args)
iter_num = len(picloader.dataset) // args.batch_size
aveGrad = 0
for i_epotch in range(args.epotch_size):
loss_seg_value1 = 0
loss_adv_target_value1 = 0
loss_D_value1 = 0
model.zero_grad()
for i_iter, data_batch in enumerate(picloader):
sal_image, sal_label, edge_image = data_batch[
'sal_image'], data_batch['sal_label'], data_batch['edge_image']
if (sal_image.size(2) != sal_label.size(2)) or (
sal_image.size(3) != sal_label.size(3)):
print('IMAGE ERROR, PASSING```')
with open(args.file_dir, 'a') as f:
f.write('IMAGE ERROR, PASSING```\n')
continue
sal_image, sal_label, edge_image = Variable(sal_image), Variable(
sal_label), Variable(edge_image)
sal_image, sal_label, edge_image = sal_image.to(
device), sal_label.to(device), edge_image.to(device)
sal_pred = model(sal_image)
edge_pred = model(edge_image)
# train G(with G)
for param in model_D1.parameters():
param.requires_grad = False
sal_loss_fuse = F.binary_cross_entropy_with_logits(sal_pred,
sal_label,
reduction='sum')
sal_loss = sal_loss_fuse / (args.iter_size * args.batch_size)
loss_seg_value1 += sal_loss.data
sal_loss.backward()
sD_out = model_D1(edge_pred)
# 这里用的是bceloss 训练G的时候，target判别为sourse_label时损失函数低
loss_adv_target1 = bce_loss(
sD_out,
torch.FloatTensor(sD_out.data.size()).fill_(salLabel).to(
device)) # 后面一个相当于全部是正确答案的和前一个size相同的tensor
sd_loss = loss_adv_target1 / (args.iter_size * args.batch_size)
loss_adv_target_value1 += sd_loss.data # 记录专用
sd_loss = sd_loss * args.lambda_adv_target2
sd_loss.backward()
# train D
for param in model_D1.parameters():
param.requires_grad = True
sal_pred = sal_pred.detach()
edge_pred = edge_pred.detach()
ss_out = model_D1(sal_pred)
ss_loss = bce_loss(
ss_out,
torch.FloatTensor(
ss_out.data.size()).fill_(salLabel).to(device))
ss_Loss = ss_loss / (args.iter_size * args.batch_size)
loss_D_value1 += ss_Loss.data
ss_Loss.backward()
se_out = model_D1(edge_pred)
se_loss = bce_loss(
se_out,
torch.FloatTensor(
se_out.data.size()).fill_(edgeLabel).to(device))
se_Loss = se_loss / (args.iter_size * args.batch_size)
loss_D_value1 += se_Loss.data
se_Loss.backward()
aveGrad += 1
if aveGrad % args.iter_size == 0:
optimizer.step()
optimizer.zero_grad()
optimizer_D1.step()
optimizer_D1.zero_grad()
aveGrad = 0
if i_iter % (args.show_every // args.batch_size) == 0:
print(
'epotch = {5:2d}/{6:2d}, iter = {0:8d}/{1:8d}, loss_seg1 = {2:.3f}, loss_adv1 = {3:.3f}, loss_D1 = {4:.3f}'
.format(i_iter, iter_num, loss_seg_value1,
loss_adv_target_value1, loss_D_value1, i_epotch,
args.epotch_size))
with open(args.file_dir, 'a') as f:
f.write(
'epotch = {5:2d}/{6:2d}, iter = {0:8d}/{1:8d}, loss_seg1 = {2:.3f}, loss_adv1 = {3:.3f}, loss_D1 = {4:.3f}\n'
.format(i_iter, iter_num, loss_seg_value1,
loss_adv_target_value1, loss_D_value1,
i_epotch, args.epotch_size))
loss_seg_value1, loss_adv_target_value1, loss_D_value1 = 0, 0, 0
if i_iter == iter_num - 1 or i_iter % args.save_pred_every == 0 and i_iter != 0:
print('taking snapshot ...')
with open(args.file_dir, 'a') as f:
f.write('taking snapshot ...\n')
torch.save(
model.state_dict(),
osp.join(
args.snapshot_dir,
'sal_' + str(i_epotch) + '_' + str(i_iter) + '.pth'))
torch.save(
model_D1.state_dict(),
osp.join(
args.snapshot_dir, 'sal_' + str(i_epotch) + '_' +
str(i_iter) + '_D1.pth'))
if i_epotch == 7:
args.learning_rate = args.learning_rate * 0.1
args.learning_rate_D = args.learning_rate_D * 0.1
optimizer = optim.Adam(filter(lambda p: p.requires_grad,
model.parameters()),
lr=args.learning_rate,
weight_decay=args.weight_decay)
optimizer_D1 = optim.Adam(model_D1.parameters(),
lr=args.learning_rate_D,
betas=(0.9, 0.99))
# end
with open(args.file_dir, 'a') as f:
f.write('end time: ' + str(datetime.now()) + '\n')
def main():
# make dir
if not os.path.exists(args.snapshot_dir):
os.makedirs(args.snapshot_dir)
run = 0
while os.path.exists("%s/run-%d" % (args.snapshot_dir, run)):
run += 1
os.mkdir("%s/run-%d" % (args.snapshot_dir, run))
os.mkdir("%s/run-%d/models" % (args.snapshot_dir, run))
args.file_dir = "%s/run-%d/file.txt" % (args.snapshot_dir, run)
args.snapshot_dir = "%s/run-%d/models" % (args.snapshot_dir, run)
# xuan xue you hua
cudnn.enabled = True
cudnn.benchmark = True
# create the model
model = build_model()
model.to(device)
model.train()
model.apply(weights_init)
model.load_state_dict(torch.load(args.restore_from))
# model.base.load_pretrained_model(torch.load(args.pretrained_model))
# create optimizer
optimizer = optim.Adam(filter(lambda p: p.requires_grad,
model.parameters()),
lr=args.learning_rate,
weight_decay=args.weight_decay) # 整个模型的优化器
optimizer.zero_grad()
# start time
with open(args.file_dir, 'a') as f:
f.write('strat time: ' + str(datetime.now()) + '\n\n')
f.write('learning rate: ' + str(args.learning_rate) + '\n')
f.write('learning rate D: ' + str(args.learning_rate_D) + '\n')
f.write('wight decay: ' + str(args.weight_decay) + '\n')
f.write('lambda_adv_target2: ' + str(args.lambda_adv_target2) + '\n\n')
f.write('eptch size: ' + str(args.epotch_size) + '\n')
f.write('batch size: ' + str(args.batch_size) + '\n')
f.write('iter size: ' + str(args.iter_size) + '\n')
f.write('num steps: ' + str(args.num_steps) + '\n\n')
picloader = get_loader(args)
iter_num = len(picloader.dataset) // args.batch_size
aveGrad = 0
for i_epotch in range(args.epotch_size):
loss_seg_value1 = 0
loss_adv_target_value1 = 0
loss_D_value1 = 0
model.zero_grad()
for i_iter, data_batch in enumerate(picloader):
sal_image, sal_label = data_batch['sal_image'], data_batch[
'sal_label']
if (sal_image.size(2) != sal_label.size(2)) or (
sal_image.size(3) != sal_label.size(3)):
print('IMAGE ERROR, PASSING```')
with open(args.file_dir, 'a') as f:
f.write('IMAGE ERROR, PASSING```\n')
continue
sal_image, sal_label = Variable(sal_image), Variable(sal_label)
sal_image, sal_label = sal_image.to(device), sal_label.to(device)
sal_pred = model(sal_image)
sal_loss_fuse = F.binary_cross_entropy_with_logits(sal_pred,
sal_label,
reduction='sum')
sal_loss = sal_loss_fuse / (args.iter_size * args.batch_size)
loss_seg_value1 += sal_loss.data
sal_loss.backward()
aveGrad += 1
if aveGrad % args.iter_size == 0:
optimizer.step()
optimizer.zero_grad()
aveGrad = 0
if i_iter % (args.show_every // args.batch_size) == 0:
print(
'epotch = {5:2d}/{6:2d}, iter = {0:8d}/{1:8d}, loss_seg1 = {2:.3f}, loss_adv1 = {3:.3f}, loss_D1 = {4:.3f}'
.format(i_iter, iter_num, loss_seg_value1,
loss_adv_target_value1, loss_D_value1, i_epotch,
args.epotch_size))
with open(args.file_dir, 'a') as f:
f.write(
'epotch = {5:2d}/{6:2d}, iter = {0:8d}/{1:8d}, loss_seg1 = {2:.3f}, loss_adv1 = {3:.3f}, loss_D1 = {4:.3f}\n'
.format(i_iter, iter_num, loss_seg_value1,
loss_adv_target_value1, loss_D_value1,
i_epotch, args.epotch_size))
loss_seg_value1, loss_adv_target_value1, loss_D_value1 = 0, 0, 0
if i_iter == iter_num - 1 or i_iter % args.save_pred_every == 0 and i_iter != 0:
print('taking snapshot ...')
with open(args.file_dir, 'a') as f:
f.write('taking snapshot ...\n')
torch.save(
model.state_dict(),
osp.join(
args.snapshot_dir,
'sal_' + str(i_epotch) + '_' + str(i_iter) + '.pth'))
# torch.save(model_D1.state_dict(), osp.join(args.snapshot_dir, 'sal_' + str(i_epotch) + '_' + str(i_iter) + '_D1.pth'))
if i_epotch == 7:
args.learning_rate = args.learning_rate * 0.1
optimizer = optim.Adam(filter(lambda p: p.requires_grad,
model.parameters()),
lr=args.learning_rate,
weight_decay=args.weight_decay)
# end
with open(args.file_dir, 'a') as f:
f.write('end time: ' + str(datetime.now()) + '\n')
def main():
"""Create the model and start the training."""
# device放GPU还是CPU
device = torch.device("cuda" if not args.cpu else "cpu")
cudnn.enabled = True #一种玄学优化
# Create network
# 重要一步 输入类别数
model = build_model() # 生成一个由resnet组成的语义分割模型
# 读取pretrained模型
model.to(device)
model.train()
model.apply(weights_init)
# model.load_state_dict(torch.load(args.restore_from))
model.base.load_pretrained_model(torch.load(args.pretrained_model))
#设置model参数
# 玄学优化
cudnn.benchmark = True
# init D 设置D 鉴别器
'''
model_D1 = FCDiscriminator(num_classes=1).to(device)
model_D1.train()
model_D1.to(device)
model_D1.apply(weights_init)
'''
# 创建存放模型的文件夹
if not os.path.exists(args.snapshot_dir):
os.makedirs(args.snapshot_dir)
picloader = get_loader(args)
# implement model.optim_parameters(args) to handle different models' lr setting
# 优化器
optimizer = optim.Adam(filter(lambda p: p.requires_grad,
model.parameters()),
lr=args.learning_rate,
weight_decay=args.weight_decay) # 整个模型的优化器
optimizer.zero_grad()
#optimizer_D1 = optim.Adam(model_D1.parameters(), lr=args.learning_rate_D, betas=(0.9, 0.99)) # D1的优化器
# optimizer_D1.zero_grad()
# 损失函数
bce_loss = torch.nn.BCEWithLogitsLoss() # sigmoid + BCE的完美组合
'''
# 两个改变size的上采样
interp = nn.Upsample(size=(input_size[1], input_size[0]), mode='bilinear', align_corners=True) # 变为source input的上采样
interp_target = nn.Upsample(size=(input_size_target[1], input_size_target[0]), mode='bilinear', align_corners=True) # 变为 target input的上采样
'''
# save folder
run = 0
while os.path.exists("%s/run-%d" % (args.snapshot_dir, run)):
run += 1
os.mkdir("%s/run-%d" % (args.snapshot_dir, run))
os.mkdir("%s/run-%d/models" % (args.snapshot_dir, run))
args.file_dir = "%s/run-%d/file.txt" % (args.snapshot_dir, run)
args.snapshot_dir = "%s/run-%d/models" % (args.snapshot_dir, run)
# labels for adversarial training 两种域的记号
source_label = 0
target_label = 1
with open(args.file_dir, 'a') as f:
f.write('strat time: ' + str(datetime.now()) + '\n\n')
f.write('learning rate: ' + str(args.learning_rate) + '\n')
f.write('learning rate D: ' + str(args.learning_rate_D) + '\n')
f.write('wight decay: ' + str(args.weight_decay) + '\n')
f.write('lambda_adv_target2: ' + str(args.lambda_adv_target2) + '\n\n')
f.write('eptch size: ' + str(args.epotch_size) + '\n')
f.write('batch size: ' + str(args.batch_size) + '\n')
f.write('iter size: ' + str(args.iter_size) + '\n')
f.write('num steps: ' + str(args.num_steps) + '\n\n')
for i_epotch in range(args.epotch_size):
# 损失值置零
loss_seg_value1 = 0
loss_adv_target_value1 = 0
loss_D_value1 = 0
model.zero_grad()
# model_D1.zero_grad()
loader_iter = enumerate(picloader)
for i_iter in range(args.num_steps // args.batch_size //
args.iter_size): # 迭代次数 大batch
# 优化器梯度置零 + 调整学习率
optimizer.zero_grad()
# adjust_learning_rate(optimizer, i_iter)
# optimizer_D1.zero_grad()
# adjust_learning_rate_D(optimizer_D1, i_iter)
for sub_i in range(args.iter_size): # 迭代次数 小batch
# get picture
_, data_batch = loader_iter.__next__() # 获取一组图片
source_images, source_labels, target_images = data_batch[
'sal_image'], data_batch['sal_label'], data_batch[
'edge_image'] #, data_batch['edge_label']
source_images, source_labels, target_images = Variable(
source_images), Variable(source_labels), Variable(
target_images)
if (source_images.size(2) != source_labels.size(2)) or (
source_images.size(3) != source_labels.size(3)):
print('IMAGE ERROR, PASSING```')
with open(args.file_dir, 'a') as f:
f.write('IMAGE ERROR, PASSING```\n')
continue
# 放入GPU
source_images = source_images.to(device)
source_labels = source_labels.to(device)
target_images = target_images.to(device)
pred1 = model(
source_images) # 三层block和四层block之后classify之后的结果（相当于两种层的结果）
# pred_target1 = model(target_images) # 放入模型
# train G
# don't accumulate grads in D 不需要D的梯度，因为这里是用D来辅助训练G
# for param in model_D1.parameters():
# param.requires_grad = False
# train with source
# 计算损失函数
loss_seg1 = F.binary_cross_entropy_with_logits(pred1,
source_labels,
reduction='sum')
lossG = loss_seg1 / args.iter_size / args.batch_size
loss_seg_value1 += lossG.item() # 记录这次的iter的结果，显示相关和训练不相关
lossG.backward()
'''
# D_out1 = model_D1(F.softmax(pred_target1)) # 放入鉴别器（不知道为什么要softmax）
D_out1 = model_D1(pred_target1)
# 这里用的是bceloss 训练G的时候，target判别为sourse_label时损失函数低
loss_adv_target1 = bce_loss(D_out1, torch.FloatTensor(D_out1.data.size()).fill_(source_label).to(device)) # 后面一个相当于全部是正确答案的和前一个size相同的tensor
lossD = loss_adv_target1 / args.iter_size
loss_adv_target_value1 += loss_adv_target1.item() / args.iter_size # 记录专用
lossD = lossD * args.lambda_adv_target2
lossD.backward()
# train D
# bring back requires_grad 恢复D的grad
for param in model_D1.parameters():
param.requires_grad = True
pred1 = pred1.detach()# train with source 脱离grad
# D_out1 = model_D1(F.softmax(pred1))# sourse的判别结果
D_out1 = model_D1(pred1)
# 训练D时sourse判断成sourse损失函数低
loss_Ds = bce_loss(D_out1, torch.FloatTensor(D_out1.data.size()).fill_(source_label).to(device))
loss_Ds = loss_Ds / args.iter_size
loss_D_value1 += loss_Ds.item()# 显示专用
pred_target1 = pred_target1.detach()# train with target target数据训练 脱离
# D_out1 = model_D1(F.softmax(pred_target1))# 得到判别结果
D_out1 = model_D1(pred_target1)# 得到判别结果
# taget判别为target时损失函数低
loss_Dt = bce_loss(D_out1, torch.FloatTensor(D_out1.data.size()).fill_(target_label).to(device))
loss_Dt = loss_Dt / args.iter_size
loss_D_value1 += loss_Dt.item()# 显示专用
loss_Ds.backward()
loss_Dt.backward()
'''
# 修改一次参数
optimizer.step()
# optimizer_D1.step()
'''
# 不管
if args.tensorboard:
scalar_info = {
'loss_seg1': loss_seg_value1,
'loss_seg2': loss_seg_value2,
'loss_adv_target1': loss_adv_target_value1,
'loss_adv_target2': loss_adv_target_value2,
'loss_D1': loss_D_value1,
'loss_D2': loss_D_value2,
}
if i_iter % 10 == 0:
for key, val in scalar_info.items():
writer.add_scalar(key, val, i_iter)
'''
# 显示
if i_iter * args.batch_size % SHOW_EVERY == 0:
print('exp = {}'.format(args.snapshot_dir))
print(
'epotch = {5:2d}/{6:2d}, iter = {0:8d}/{1:8d}, loss_seg1 = {2:.3f}, loss_adv1 = {3:.3f}, loss_D1 = {4:.3f}'
.format(
i_iter,
args.num_steps // args.batch_size // args.iter_size,
loss_seg_value1, loss_adv_target_value1, loss_D_value1,
i_epotch, args.epotch_size))
with open(args.file_dir, 'a') as f:
f.write('exp = {}\n'.format(args.snapshot_dir))
f.write(
'epotch = {5:2d}/{6:2d}, iter = {0:8d}/{1:8d}, loss_seg1 = {2:.3f}, loss_adv1 = {3:.3f}, loss_D1 = {4:.3f}\n'
.format(
i_iter, args.num_steps // args.batch_size //
args.iter_size, loss_seg_value1,
loss_adv_target_value1, loss_D_value1, i_epotch,
args.epotch_size))
loss_seg_value1, loss_adv_target_value1, loss_D_value1 = 0, 0, 0
# 提前终止
if i_iter >= args.num_steps_stop - 1:
print('save model ...')
with open(args.file_dir, 'a') as f:
f.write('save model ...\n')
torch.save(
model.state_dict(),
osp.join(
args.snapshot_dir, 'sal_' + str(i_epotch) + '_' +
str(args.num_steps_stop) + '.pth'))
# torch.save(model_D1.state_dict(), osp.join(args.snapshot_dir, 'sal_' + str(i_epotch) + '_' + str(args.num_steps_stop) + '_D1.pth'))
break
if i_iter == args.num_steps // args.batch_size // args.iter_size - 1 or i_iter * args.batch_size * args.iter_size % args.save_pred_every == 0 and i_iter != 0:
print('taking snapshot ...')
with open(args.file_dir, 'a') as f:
f.write('taking snapshot ...\n')
torch.save(
model.state_dict(),
osp.join(
args.snapshot_dir,
'sal_' + str(i_epotch) + '_' + str(i_iter) + '.pth'))
# torch.save(model_D1.state_dict(), osp.join(args.snapshot_dir, 'sal_' + str(i_epotch) + '_' + str(i_iter) + '_D1.pth'))
'''
if args.tensorboard:
writer.close()
'''
with open(args.file_dir, 'a') as f:
f.write('end time: ' + str(datetime.now()) + '\n')
