def train(cfg, network):
# cfg.train.num_workers = 0
if cfg.train.dataset[:4] != 'City':
torch.multiprocessing.set_sharing_strategy('file_system')
train_loader = make_data_loader(cfg, is_train=True, max_iter=cfg.ep_iter)
val_loader = make_data_loader(cfg, is_train=False)
# train_loader = make_data_loader(cfg, is_train=True, max_iter=100)
trainer = make_trainer(cfg, network)
optimizer = make_optimizer(cfg, network)
scheduler = make_lr_scheduler(cfg, optimizer)
recorder = make_recorder(cfg)
evaluator = make_evaluator(cfg)
begin_epoch = load_model(network, optimizer, scheduler, recorder, cfg.model_dir, resume=cfg.resume)
# set_lr_scheduler(cfg, scheduler)
for epoch in range(begin_epoch, cfg.train.epoch):
recorder.epoch = epoch
trainer.train(epoch, train_loader, optimizer, recorder)
scheduler.step()
if (epoch + 1) % cfg.save_ep == 0:
save_model(network, optimizer, scheduler, recorder, epoch, cfg.model_dir)
if (epoch + 1) % cfg.eval_ep == 0:
trainer.val(epoch, val_loader, evaluator, recorder)
return network
def train(cfg, network):
trainer = make_trainer(cfg, network)
optimizer = make_optimizer(cfg, network)
scheduler = make_lr_scheduler(cfg, optimizer)
recorder = make_recorder(cfg)
evaluator = make_evaluator(cfg)
begin_epoch = load_model(network, optimizer, scheduler, recorder, cfg.model_dir, resume=cfg.resume)
# set_lr_scheduler(cfg, scheduler)
train_loader = make_data_loader(cfg, is_train=True)
val_loader = make_data_loader(cfg, is_train=False)
for epoch in range(begin_epoch, cfg.train.epoch):
recorder.epoch = epoch
trainer.train(epoch, train_loader, optimizer, recorder)
scheduler.step()
if (epoch + 1) % cfg.save_ep == 0:
save_model(network, optimizer, scheduler, recorder, epoch, cfg.model_dir)
if (epoch + 1) % cfg.eval_ep == 0:
trainer.val(epoch, val_loader, evaluator, recorder)
return network
def train(cfg, network):
if cfg.train.dataset[:4] != 'City':
torch.multiprocessing.set_sharing_strategy('file_system')
trainer = make_trainer(cfg, network)
optimizer = make_optimizer(cfg, network)
scheduler = make_lr_scheduler(cfg, optimizer)
recorder = make_recorder(cfg)
if 'Coco' not in cfg.train.dataset:
evaluator = make_evaluator(cfg)
begin_epoch = load_model(network,
optimizer,
scheduler,
recorder,
cfg.model_dir,
resume=cfg.resume)
# set_lr_scheduler(cfg, scheduler)
train_loader = make_data_loader(cfg, is_train=True)
val_loader = make_data_loader(cfg, is_train=False)
# train_loader = make_data_loader(cfg, is_train=True, max_iter=100)
global_steps = None
if cfg.neptune:
global_steps = {
'train_global_steps': 0,
'valid_global_steps': 0,
}
neptune.init('hccccccccc/clean-pvnet')
neptune.create_experiment(cfg.model_dir.split('/')[-1])
neptune.append_tag('pose')
for epoch in range(begin_epoch, cfg.train.epoch):
recorder.epoch = epoch
trainer.train(epoch, train_loader, optimizer, recorder, global_steps)
scheduler.step()
if (epoch + 1) % cfg.save_ep == 0:
save_model(network, optimizer, scheduler, recorder, epoch,
cfg.model_dir)
if (epoch + 1) % cfg.eval_ep == 0:
if 'Coco' in cfg.train.dataset:
trainer.val_coco(val_loader, global_steps)
else:
trainer.val(epoch, val_loader, evaluator, recorder)
if cfg.neptune:
neptune.stop()
return network
def train(cfg, network):
trainer = make_trainer(cfg, network)
optimizer = make_optimizer(cfg, network)
scheduler = make_lr_scheduler(cfg, optimizer)
recorder = make_recorder(cfg)
evaluator = make_evaluator(cfg)
begin_epoch = load_model(network,
optimizer,
scheduler,
recorder,
cfg.model_dir,
resume=cfg.resume)
# begin_epoch = 0 #如果要继续训练那么请注释这一行
# set_lr_scheduler(cfg, scheduler)
# print("before train loader")
train_loader = make_data_loader(cfg, is_train=True) #到这里才读取的数据
# print("under train loader")
val_loader = make_data_loader(cfg, is_train=False)
# #这里是查看train_loader的相关参数个结构
# tmp_file = open('/home/tianhao.lu/code/Deep_snake/snake/Result/Contour/contour.log', 'w')
# tmp_file.writelines("train_loader type:" + str(type(train_loader)) + "\n")
# tmp_file.writelines("train_loader len:" + str(len(train_loader)) + "\n")
# tmp_file.writelines("train_loader data:" + str(train_loader) + "\n")
# for tmp_data in train_loader:
# tmp_file.writelines("one train_loader data type:" + str(type(tmp_data)) + "\n")
# for key in tmp_data:
# tmp_file.writelines("one train_loader data key:" + str(key) + "\n")
# tmp_file.writelines("one train_loader data len:" + str(len(tmp_data[key])) + "\n")
# # tmp_file.writelines("one train_loader data:" + str(tmp_data) + "\n")
# break
# tmp_file.writelines(str("*************************************************************** \n"))
# tmp_file.close()
for epoch in range(begin_epoch, cfg.train.epoch):
recorder.epoch = epoch
trainer.train(epoch, train_loader, optimizer, recorder)
scheduler.step() #optimizer.step()模型才会更新，scheduler.step()是用来调整lr的
if (epoch + 1) % cfg.save_ep == 0:
save_model(network, optimizer, scheduler, recorder, epoch,
cfg.model_dir)
if (epoch + 1) % cfg.eval_ep == 0:
trainer.val(epoch, val_loader, evaluator, recorder)
return network
def train(cfg, network):
trainer = make_trainer(cfg, network)
optimizer = make_optimizer(cfg, network)
scheduler = make_lr_scheduler(cfg, optimizer)
recorder = make_recorder(cfg)
evaluator = make_evaluator(cfg)
begin_epoch = load_model(network,
optimizer,
scheduler,
recorder,
cfg.trained_model_dir,
resume=cfg.resume)
set_lr_scheduler(cfg, scheduler)
train_loader = make_data_loader(cfg,
is_train=True,
is_distributed=cfg.distributed,
max_iter=cfg.ep_iter)
val_loader = make_data_loader(cfg, is_train=False)
for epoch in range(begin_epoch, cfg.train.epoch):
recorder.epoch = epoch
if cfg.distributed:
train_loader.batch_sampler.sampler.set_epoch(epoch)
trainer.train(epoch, train_loader, optimizer, recorder)
scheduler.step()
if (epoch + 1) % cfg.save_ep == 0 and cfg.local_rank == 0:
save_model(network, optimizer, scheduler, recorder,
cfg.trained_model_dir, epoch)
if (epoch + 1) % cfg.save_latest_ep == 0 and cfg.local_rank == 0:
save_model(network,
optimizer,
scheduler,
recorder,
cfg.trained_model_dir,
epoch,
last=True)
if (epoch + 1) % cfg.eval_ep == 0:
trainer.val(epoch, val_loader, evaluator, recorder)
return network
def train(cfg, network):
trainer = make_trainer(cfg, network)
optimizer = make_optimizer(cfg, network)
scheduler = make_lr_scheduler(cfg, optimizer)
recorder = make_recorder(cfg)
#evaluator = make_evaluator(cfg)
if cfg.network_full_init:
begin_epoch = load_network(network,
cfg.model_dir,
resume=cfg.resume,
epoch=cfg.test.epoch)
begin_epoch = 0
else:
begin_epoch = load_model(network,
optimizer,
scheduler,
recorder,
cfg.model_dir,
resume=cfg.resume)
# set_lr_scheduler(cfg, scheduler)
if DEBUG:
print('------------------Loading training set-------------------')
train_loader = make_data_loader(cfg, is_train=True)
if DEBUG:
print('Loading training set done...')
print('---------------------------------------------------------')
#val_loader = make_data_loader(cfg, is_train=False)
for epoch in range(begin_epoch, cfg.train.epoch):
recorder.epoch = epoch
trainer.train(epoch, train_loader, optimizer, recorder)
scheduler.step()
if (epoch + 1) % cfg.save_ep == 0:
save_model(network, optimizer, scheduler, recorder, epoch,
cfg.model_dir)
#if (epoch + 1) % cfg.eval_ep == 0:
# trainer.val(epoch, val_loader, evaluator, recorder)
return network