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Ajout Meta-scheduler a run_dist_dataugV3

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Harle, Antoine (Contracteur) 2020-02-26 12:19:44 -05:00
parent 2cbe3d09aa
commit e2691a1c38
2 changed files with 15 additions and 3 deletions
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7
higher/smart_aug/test_dataug.py
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@ -8,7 +8,7 @@ from dataug import *
from train_utils import * from train_utils import *
from transformations import TF_loader from transformations import TF_loader
postfix='' postfix='-metaScheduler'
TF_loader=TF_loader() TF_loader=TF_loader()
device = torch.device('cuda') #Select device to use device = torch.device('cuda') #Select device to use
@ -40,9 +40,10 @@ if __name__ == "__main__":
optim_param={ optim_param={
'Meta':{ 'Meta':{
'optim':'Adam', 'optim':'Adam',
'lr':1e-2, #1e-2 'lr':1e-4, #1e-2
'epoch_start': 2, #0 / 2 (Resnet?) 'epoch_start': 2, #0 / 2 (Resnet?)
'reg_factor': 0.001, 'reg_factor': 0.001,
'scheduler': 'multiStep', #None, 'multiStep'
}, },
'Inner':{ 'Inner':{
'optim': 'SGD', 'optim': 'SGD',
@ -138,7 +139,7 @@ if __name__ == "__main__":
inner_it=n_inner_iter, inner_it=n_inner_iter,
dataug_epoch_start=dataug_epoch_start, dataug_epoch_start=dataug_epoch_start,
opt_param=optim_param, opt_param=optim_param,
print_freq=10, print_freq=20,
unsup_loss=1, unsup_loss=1,
hp_opt=False, hp_opt=False,
save_sample_freq=None) save_sample_freq=None)

11
higher/smart_aug/train_utils.py
View file

@ -292,6 +292,14 @@ def run_dist_dataugV3(model, opt_param, epochs=1, inner_it=1, dataug_epoch_start
hyper_param += [param_group[param]] hyper_param += [param_group[param]]
meta_opt = torch.optim.Adam(hyper_param, lr=opt_param['Meta']['lr']) #lr=1e-2 meta_opt = torch.optim.Adam(hyper_param, lr=opt_param['Meta']['lr']) #lr=1e-2
meta_scheduler=None
if opt_param['Meta']['scheduler']=='multiStep':
meta_scheduler=torch.optim.lr_scheduler.MultiStepLR(meta_opt,
milestones=[int(epochs/3), int(epochs*2/3), int(epochs*2.7/3)],
gamma=10)
elif opt_param['Meta']['scheduler'] is not None:
raise ValueError("Lr scheduler unknown : %s"%opt_param['Meta']['scheduler'])
model.train() model.train()
meta_opt.zero_grad() meta_opt.zero_grad()
@ -356,12 +364,15 @@ def run_dist_dataugV3(model, opt_param, epochs=1, inner_it=1, dataug_epoch_start
tf = time.perf_counter() tf = time.perf_counter()
#Schedulers
if inner_scheduler is not None: if inner_scheduler is not None:
inner_scheduler.step() inner_scheduler.step()
#Transfer inner_opt lr to diffopt #Transfer inner_opt lr to diffopt
for diff_param_group in diffopt.param_groups: for diff_param_group in diffopt.param_groups:
for param_group in inner_opt.param_groups: for param_group in inner_opt.param_groups:
diff_param_group['lr'] = param_group['lr'] diff_param_group['lr'] = param_group['lr']
if meta_scheduler is not None:
meta_scheduler.step()
if (save_sample_freq and epoch%save_sample_freq==0): #Data sample saving if (save_sample_freq and epoch%save_sample_freq==0): #Data sample saving
try: try: