def run_training(rank, world_size, model_args, data, load_from, new,
num_train_steps, name):
is_main = rank == 0
is_ddp = world_size > 1
if is_ddp:
set_seed(seed)
os.environ['MASTER_ADDR'] = 'localhost'
os.environ['MASTER_PORT'] = '12355'
dist.init_process_group('nccl', rank=rank, world_size=world_size)
print(f"{rank + 1}/{world_size} process initialized.")
model_args.update(is_ddp=is_ddp, rank=rank, world_size=world_size)
model = Trainer(**model_args)
if not new:
model.load(load_from)
else:
model.clear()
model.set_data_src(data)
for _ in tqdm(range(num_train_steps - model.steps),
initial=model.steps,
total=num_train_steps,
mininterval=10.,
desc=f'{name}<{data}>'):
retry_call(model.train, tries=3, exceptions=NanException)
if is_main and _ % 50 == 0:
model.print_log()
if is_ddp:
dist.destroy_process_group()
def run_training(rank, world_size, model_args, data, load_from, disc_load_from,
new, num_train_steps, name, seed):
is_main = rank == 0
is_ddp = world_size > 1
if is_ddp:
set_seed(seed)
os.environ['MASTER_ADDR'] = 'localhost'
os.environ['MASTER_PORT'] = '12355'
dist.init_process_group('nccl', rank=rank, world_size=world_size)
print(f"{rank + 1}/{world_size} process initialized.")
model_args.update(is_ddp=is_ddp, rank=rank, world_size=world_size)
model = Trainer(**model_args)
if not new:
model.load(load_from)
if disc_load_from > 0:
model2 = Trainer(**model_args)
model2.load(disc_load_from)
model.GAN.D, model.GAN.D_aug, model.GAN.D_cl, model.GAN.D_opt = model2.GAN.D, model2.GAN.D_aug, model2.GAN.D_cl, model2.GAN.D_opt
del model2
else:
model.clear()
model.set_data_src(data)
progress_bar = tqdm(initial=model.steps,
total=num_train_steps,
mininterval=10.,
desc=f'{name}<{data}>')
while model.steps < num_train_steps:
retry_call(model.train, tries=3, exceptions=NanException)
progress_bar.n = model.steps
progress_bar.refresh()
if is_main and model.steps % 50 == 0:
model.print_log()
model.save(model.checkpoint_num)
if is_ddp:
dist.destroy_process_group()
def train_from_folder(
data='/hydration/ffhq/pose/trainB',
results_dir='/hydration/results',
models_dir='./models',
name='run_testsg2_001',
new=False,
load_from=-1,
image_size=128, # 256 if comparing against Hydration; 128 if reproducing StyleGAN 2
network_capacity=16, # 64 if comparing against Hydration; 16 if reproducing StyleGAN 2
transparent=False,
batch_size=3, # 1 if comparing against Hydration; 3 if reproducing StyleGAN 2
gradient_accumulate_every=5, # 1 if comparing against Hydration; 5 if reproducing StyleGAN 2
num_train_steps=150000,
learning_rate=2e-4, # Always 0.0002
num_workers=None,
save_every=1000,
generate=False,
generate_interpolation=False,
save_frames=False,
num_image_tiles=8,
trunc_psi=0.75, # Always 0.75
fp16=False,
cl_reg=False, # Always False
fq_layers=[], # [] if comparing against Hydration; [] if reproducing StyleGAN 2
fq_dict_size=256, # 256 if comparing against Hydration; 256 if reproducing StyleGAN 2
attn_layers=[], # [] if comparing against Hydration; [] if reproducing StyleGAN 2
no_const=False, # False if comparing against Hydration; False if reproducing StyleGAN 2
aug_prob=0., # 0.0 if comparing against Hydration; 0.0 if reproducing StyleGAN 2
dataset_aug_prob=0., # 0.0 if comparing against Hydration; 0.0 if reproducing StyleGAN 2
use_manual_seed=-1, # -1 for no seed # 0 if comparing against Hydration; -1 if reproducing StyleGAN 2
debug_and_crash_mode=False):
model = Trainer(name,
results_dir,
models_dir,
batch_size=batch_size,
gradient_accumulate_every=gradient_accumulate_every,
image_size=image_size,
network_capacity=network_capacity,
transparent=transparent,
lr=learning_rate,
num_workers=num_workers,
save_every=save_every,
trunc_psi=trunc_psi,
fp16=fp16,
cl_reg=cl_reg,
fq_layers=fq_layers,
fq_dict_size=fq_dict_size,
attn_layers=attn_layers,
no_const=no_const,
aug_prob=aug_prob,
dataset_aug_prob=dataset_aug_prob,
use_manual_seed=use_manual_seed,
debug_and_crash_mode=debug_and_crash_mode)
if not new:
model.load(load_from)
else:
model.clear()
if generate:
now = datetime.now()
timestamp = now.strftime("%m-%d-%Y_%H-%M-%S")
samples_name = f'generated-{timestamp}'
model.evaluate(samples_name, num_image_tiles)
print(
f'sample images generated at {results_dir}/{name}/{samples_name}')
return
if generate_interpolation:
now = datetime.now()
timestamp = now.strftime("%m-%d-%Y_%H-%M-%S")
samples_name = f'generated-{timestamp}'
model.generate_interpolation(samples_name,
num_image_tiles,
save_frames=save_frames)
print(
f'interpolation generated at {results_dir}/{name}/{samples_name}')
return
model.set_data_src(data)
for _ in tqdm(range(num_train_steps - model.steps),
mininterval=10.,
desc=f'{name}<{data}>'):
retry_call(model.train, tries=3, exceptions=NanException)
if _ % 50 == 0:
model.print_log()
def train_from_folder(data='./data',
results_dir='./results',
models_dir='./models',
name='default',
new=False,
load_from=-1,
image_size=128,
network_capacity=16,
transparent=False,
batch_size=5,
gradient_accumulate_every=6,
num_train_steps=150000,
learning_rate=2e-4,
lr_mlp=0.1,
ttur_mult=1.5,
rel_disc_loss=False,
num_workers=None,
save_every=1000,
generate=False,
generate_interpolation=False,
save_frames=False,
num_image_tiles=8,
trunc_psi=0.75,
fp16=False,
cl_reg=False,
fq_layers=[],
fq_dict_size=256,
attn_layers=[],
no_const=False,
aug_prob=0.,
dataset_aug_prob=0.,
gpu_ids=[0]):
gpu_ids = cast_list(gpu_ids)
os.environ["CUDA_VISIBLE_DEVICES"] = ','.join(map(str, gpu_ids))
from stylegan2_pytorch import Trainer, NanException
model = Trainer(name,
results_dir,
models_dir,
batch_size=batch_size,
gradient_accumulate_every=gradient_accumulate_every,
image_size=image_size,
network_capacity=network_capacity,
transparent=transparent,
lr=learning_rate,
lr_mlp=lr_mlp,
ttur_mult=ttur_mult,
rel_disc_loss=rel_disc_loss,
num_workers=num_workers,
save_every=save_every,
trunc_psi=trunc_psi,
fp16=fp16,
cl_reg=cl_reg,
fq_layers=fq_layers,
fq_dict_size=fq_dict_size,
attn_layers=attn_layers,
no_const=no_const,
aug_prob=aug_prob,
dataset_aug_prob=dataset_aug_prob)
if not new:
model.load(load_from)
else:
model.clear()
if generate:
samples_name = timestamped_filename()
model.evaluate(samples_name, num_image_tiles)
print(
f'sample images generated at {results_dir}/{name}/{samples_name}')
return
if generate_interpolation:
samples_name = timestamped_filename()
model.generate_interpolation(samples_name,
num_image_tiles,
save_frames=save_frames)
print(
f'interpolation generated at {results_dir}/{name}/{samples_name}')
return
model.set_data_src(data)
for _ in tqdm(range(num_train_steps - model.steps),
mininterval=10.,
desc=f'{name}<{data}>'):
retry_call(model.train, tries=3, exceptions=NanException)
if _ % 50 == 0:
model.print_log()