def train_gan(separate_funcs=False,
D_training_repeats=1,
G_learning_rate_max=0.0010,
D_learning_rate_max=0.0010,
G_smoothing=0.999,
adam_beta1=0.0,
adam_beta2=0.99,
adam_epsilon=1e-8,
minibatch_default=16,
minibatch_overrides={},
rampup_kimg=40,
rampdown_kimg=0,
lod_initial_resolution=4,
lod_training_kimg=400,
lod_transition_kimg=400,
total_kimg=10000,
dequantize_reals=False,
gdrop_beta=0.9,
gdrop_lim=0.5,
gdrop_coef=0.2,
gdrop_exp=2.0,
drange_net=[-1, 1],
drange_viz=[-1, 1],
image_grid_size=None,
tick_kimg_default=50,
tick_kimg_overrides={
32: 20,
64: 10,
128: 10,
256: 5,
512: 2,
1024: 1
},
image_snapshot_ticks=4,
network_snapshot_ticks=40,
image_grid_type='default',
resume_network_pkl=None,
resume_kimg=0.0,
resume_time=0.0):
# Load dataset and build networks.
training_set, drange_orig = load_dataset()
if resume_network_pkl:
print 'Resuming', resume_network_pkl
G, D, _ = misc.load_pkl(
os.path.join(config.result_dir, resume_network_pkl))
else:
G = network.Network(num_channels=training_set.shape[1],
resolution=training_set.shape[2],
label_size=training_set.labels.shape[1],
**config.G)
D = network.Network(num_channels=training_set.shape[1],
resolution=training_set.shape[2],
label_size=training_set.labels.shape[1],
**config.D)
Gs = G.create_temporally_smoothed_version(beta=G_smoothing,
explicit_updates=True)
misc.print_network_topology_info(G.output_layers)
misc.print_network_topology_info(D.output_layers)
# Setup snapshot image grid.
if image_grid_type == 'default':
if image_grid_size is None:
w, h = G.output_shape[3], G.output_shape[2]
image_grid_size = np.clip(1920 / w, 3,
16), np.clip(1080 / h, 2, 16)
example_real_images, snapshot_fake_labels = training_set.get_random_minibatch(
np.prod(image_grid_size), labels=True)
snapshot_fake_latents = random_latents(np.prod(image_grid_size),
G.input_shape)
elif image_grid_type == 'category':
W = training_set.labels.shape[1]
H = W if image_grid_size is None else image_grid_size[1]
image_grid_size = W, H
snapshot_fake_latents = random_latents(W * H, G.input_shape)
snapshot_fake_labels = np.zeros((W * H, W),
dtype=training_set.labels.dtype)
example_real_images = np.zeros((W * H, ) + training_set.shape[1:],
dtype=training_set.dtype)
for x in xrange(W):
snapshot_fake_labels[x::W, x] = 1.0
indices = np.arange(
training_set.shape[0])[training_set.labels[:, x] != 0]
for y in xrange(H):
example_real_images[x + y * W] = training_set.h5_lods[0][
np.random.choice(indices)]
else:
raise ValueError('Invalid image_grid_type', image_grid_type)
# Theano input variables and compile generation func.
print 'Setting up Theano...'
real_images_var = T.TensorType('float32', [False] *
len(D.input_shape))('real_images_var')
real_labels_var = T.TensorType(
'float32', [False] * len(training_set.labels.shape))('real_labels_var')
fake_latents_var = T.TensorType('float32', [False] *
len(G.input_shape))('fake_latents_var')
fake_labels_var = T.TensorType(
'float32', [False] * len(training_set.labels.shape))('fake_labels_var')
G_lrate = theano.shared(np.float32(0.0))
D_lrate = theano.shared(np.float32(0.0))
gen_fn = theano.function([fake_latents_var, fake_labels_var],
Gs.eval_nd(fake_latents_var,
fake_labels_var,
ignore_unused_inputs=True),
on_unused_input='ignore')
# Misc init.
resolution_log2 = int(np.round(np.log2(G.output_shape[2])))
initial_lod = max(
resolution_log2 - int(np.round(np.log2(lod_initial_resolution))), 0)
cur_lod = 0.0
min_lod, max_lod = -1.0, -2.0
fake_score_avg = 0.0
if config.D.get('mbdisc_kernels', None):
print 'Initializing minibatch discrimination...'
if hasattr(D, 'cur_lod'): D.cur_lod.set_value(np.float32(initial_lod))
D.eval(real_images_var, deterministic=False, init=True)
init_layers = lasagne.layers.get_all_layers(D.output_layers)
init_updates = [
update for layer in init_layers
for update in getattr(layer, 'init_updates', [])
]
init_fn = theano.function(inputs=[real_images_var],
outputs=None,
updates=init_updates)
init_reals = training_set.get_random_minibatch(500, lod=initial_lod)
init_reals = misc.adjust_dynamic_range(init_reals, drange_orig,
drange_net)
init_fn(init_reals)
del init_reals
# Save example images.
snapshot_fake_images = gen_fn(snapshot_fake_latents, snapshot_fake_labels)
result_subdir = misc.create_result_subdir(config.result_dir,
config.run_desc)
misc.save_image_grid(example_real_images,
os.path.join(result_subdir, 'reals.png'),
drange=drange_orig,
grid_size=image_grid_size)
misc.save_image_grid(snapshot_fake_images,
os.path.join(result_subdir, 'fakes%06d.png' % 0),
drange=drange_viz,
grid_size=image_grid_size)
# Training loop.
cur_nimg = int(resume_kimg * 1000)
cur_tick = 0
tick_start_nimg = cur_nimg
tick_start_time = time.time()
tick_train_out = []
train_start_time = tick_start_time - resume_time
while cur_nimg < total_kimg * 1000:
# Calculate current LOD.
cur_lod = initial_lod
if lod_training_kimg or lod_transition_kimg:
tlod = (cur_nimg / 1000.0) / (lod_training_kimg +
lod_transition_kimg)
cur_lod -= np.floor(tlod)
if lod_transition_kimg:
cur_lod -= max(
1.0 + (np.fmod(tlod, 1.0) - 1.0) *
(lod_training_kimg + lod_transition_kimg) /
lod_transition_kimg, 0.0)
cur_lod = max(cur_lod, 0.0)
# Look up resolution-dependent parameters.
cur_res = 2**(resolution_log2 - int(np.floor(cur_lod)))
minibatch_size = minibatch_overrides.get(cur_res, minibatch_default)
tick_duration_kimg = tick_kimg_overrides.get(cur_res,
tick_kimg_default)
# Update network config.
lrate_coef = misc.rampup(cur_nimg / 1000.0, rampup_kimg)
lrate_coef *= misc.rampdown_linear(cur_nimg / 1000.0, total_kimg,
rampdown_kimg)
G_lrate.set_value(np.float32(lrate_coef * G_learning_rate_max))
D_lrate.set_value(np.float32(lrate_coef * D_learning_rate_max))
if hasattr(G, 'cur_lod'): G.cur_lod.set_value(np.float32(cur_lod))
if hasattr(D, 'cur_lod'): D.cur_lod.set_value(np.float32(cur_lod))
# Setup training func for current LOD.
new_min_lod, new_max_lod = int(np.floor(cur_lod)), int(
np.ceil(cur_lod))
if min_lod != new_min_lod or max_lod != new_max_lod:
print 'Compiling training funcs...'
min_lod, max_lod = new_min_lod, new_max_lod
# Pre-process reals.
real_images_expr = real_images_var
if dequantize_reals:
rnd = theano.sandbox.rng_mrg.MRG_RandomStreams(
lasagne.random.get_rng().randint(1, 2147462579))
epsilon_noise = rnd.uniform(size=real_images_expr.shape,
low=-0.5,
high=0.5,
dtype='float32')
real_images_expr = T.cast(
real_images_expr, 'float32'
) + epsilon_noise # match original implementation of Improved Wasserstein
real_images_expr = misc.adjust_dynamic_range(
real_images_expr, drange_orig, drange_net)
if min_lod > 0: # compensate for shrink_based_on_lod
real_images_expr = T.extra_ops.repeat(real_images_expr,
2**min_lod,
axis=2)
real_images_expr = T.extra_ops.repeat(real_images_expr,
2**min_lod,
axis=3)
# Optimize loss.
G_loss, D_loss, real_scores_out, fake_scores_out = evaluate_loss(
G, D, min_lod, max_lod, real_images_expr, real_labels_var,
fake_latents_var, fake_labels_var, **config.loss)
G_updates = adam(G_loss,
G.trainable_params(),
learning_rate=G_lrate,
beta1=adam_beta1,
beta2=adam_beta2,
epsilon=adam_epsilon).items()
D_updates = adam(D_loss,
D.trainable_params(),
learning_rate=D_lrate,
beta1=adam_beta1,
beta2=adam_beta2,
epsilon=adam_epsilon).items()
# Compile training funcs.
if not separate_funcs:
GD_train_fn = theano.function([
real_images_var, real_labels_var, fake_latents_var,
fake_labels_var
], [G_loss, D_loss, real_scores_out, fake_scores_out],
updates=G_updates + D_updates +
Gs.updates,
on_unused_input='ignore')
else:
D_train_fn = theano.function([
real_images_var, real_labels_var, fake_latents_var,
fake_labels_var
], [G_loss, D_loss, real_scores_out, fake_scores_out],
updates=D_updates,
on_unused_input='ignore')
G_train_fn = theano.function(
[fake_latents_var, fake_labels_var], [],
updates=G_updates + Gs.updates,
on_unused_input='ignore')
# Invoke training funcs.
if not separate_funcs:
assert D_training_repeats == 1
mb_reals, mb_labels = training_set.get_random_minibatch(
minibatch_size,
lod=cur_lod,
shrink_based_on_lod=True,
labels=True)
mb_train_out = GD_train_fn(
mb_reals, mb_labels,
random_latents(minibatch_size, G.input_shape),
random_labels(minibatch_size, training_set))
cur_nimg += minibatch_size
tick_train_out.append(mb_train_out)
else:
for idx in xrange(D_training_repeats):
mb_reals, mb_labels = training_set.get_random_minibatch(
minibatch_size,
lod=cur_lod,
shrink_based_on_lod=True,
labels=True)
mb_train_out = D_train_fn(
mb_reals, mb_labels,
random_latents(minibatch_size, G.input_shape),
random_labels(minibatch_size, training_set))
cur_nimg += minibatch_size
tick_train_out.append(mb_train_out)
G_train_fn(random_latents(minibatch_size, G.input_shape),
random_labels(minibatch_size, training_set))
# Fade in D noise if we're close to becoming unstable
fake_score_cur = np.clip(np.mean(mb_train_out[1]), 0.0, 1.0)
fake_score_avg = fake_score_avg * gdrop_beta + fake_score_cur * (
1.0 - gdrop_beta)
gdrop_strength = gdrop_coef * (max(fake_score_avg - gdrop_lim, 0.0)**
gdrop_exp)
if hasattr(D, 'gdrop_strength'):
D.gdrop_strength.set_value(np.float32(gdrop_strength))
# Perform maintenance operations once per tick.
if cur_nimg >= tick_start_nimg + tick_duration_kimg * 1000 or cur_nimg >= total_kimg * 1000:
cur_tick += 1
cur_time = time.time()
tick_kimg = (cur_nimg - tick_start_nimg) / 1000.0
tick_start_nimg = cur_nimg
tick_time = cur_time - tick_start_time
tick_start_time = cur_time
tick_train_avg = tuple(
np.mean(np.concatenate([np.asarray(v).flatten()
for v in vals]))
for vals in zip(*tick_train_out))
tick_train_out = []
# Print progress.
print 'tick %-5d kimg %-8.1f lod %-5.2f minibatch %-4d time %-12s sec/tick %-9.1f sec/kimg %-6.1f Dgdrop %-8.4f Gloss %-8.4f Dloss %-8.4f Dreal %-8.4f Dfake %-8.4f' % (
(cur_tick, cur_nimg / 1000.0, cur_lod, minibatch_size,
misc.format_time(cur_time - train_start_time), tick_time,
tick_time / tick_kimg, gdrop_strength) + tick_train_avg)
# Visualize generated images.
if cur_tick % image_snapshot_ticks == 0 or cur_nimg >= total_kimg * 1000:
snapshot_fake_images = gen_fn(snapshot_fake_latents,
snapshot_fake_labels)
misc.save_image_grid(snapshot_fake_images,
os.path.join(
result_subdir,
'fakes%06d.png' % (cur_nimg / 1000)),
drange=drange_viz,
grid_size=image_grid_size)
# Save network snapshot every N ticks.
if cur_tick % network_snapshot_ticks == 0 or cur_nimg >= total_kimg * 1000:
misc.save_pkl(
(G, D, Gs),
os.path.join(
result_subdir,
'network-snapshot-%06d.pkl' % (cur_nimg / 1000)))
# Write final results.
misc.save_pkl((G, D, Gs), os.path.join(result_subdir, 'network-final.pkl'))
training_set.close()
print 'Done.'
with open(os.path.join(result_subdir, '_training-done.txt'), 'wt'):
pass
def train_gan(
separate_funcs=False,
D_training_repeats=1,
G_learning_rate_max=0.0010,
D_learning_rate_max=0.0010,
G_smoothing=0.999,
adam_beta1=0.0,
adam_beta2=0.99,
adam_epsilon=1e-8,
minibatch_default=16,
minibatch_overrides={},
rampup_kimg=40 / speed_factor,
rampdown_kimg=0,
lod_initial_resolution=4,
lod_training_kimg=400 / speed_factor,
lod_transition_kimg=400 / speed_factor,
#lod_training_kimg = 40,
#lod_transition_kimg = 40,
total_kimg=10000 / speed_factor,
dequantize_reals=False,
gdrop_beta=0.9,
gdrop_lim=0.5,
gdrop_coef=0.2,
gdrop_exp=2.0,
drange_net=[-1, 1],
drange_viz=[-1, 1],
image_grid_size=None,
#tick_kimg_default = 1,
tick_kimg_default=50 / speed_factor,
tick_kimg_overrides={
32: 20,
64: 10,
128: 10,
256: 5,
512: 2,
1024: 1
},
image_snapshot_ticks=4,
network_snapshot_ticks=40,
image_grid_type='default',
#resume_network_pkl = '006-celeb128-progressive-growing/network-snapshot-002009.pkl',
resume_network_pkl=None,
resume_kimg=0,
resume_time=0.0):
# Load dataset and build networks.
training_set, drange_orig = load_dataset()
print "*************** test the format of dataset ***************"
print training_set
print drange_orig
# training_set是dataset模块解析h5之后的对象，
# drange_orig 为training_set.get_dynamic_range()
if resume_network_pkl:
print 'Resuming', resume_network_pkl
G, D, _ = misc.load_pkl(
os.path.join(config.result_dir, resume_network_pkl))
else:
G = network.Network(num_channels=training_set.shape[1],
resolution=training_set.shape[2],
label_size=training_set.labels.shape[1],
**config.G)
D = network.Network(num_channels=training_set.shape[1],
resolution=training_set.shape[2],
label_size=training_set.labels.shape[1],
**config.D)
Gs = G.create_temporally_smoothed_version(beta=G_smoothing,
explicit_updates=True)
# G,D对象可以由misc解析pkl之后生成，也可以由network模块构造
print G
print D
#misc.print_network_topology_info(G.output_layers)
#misc.print_network_topology_info(D.output_layers)
# Setup snapshot image grid.
# 设置中途输出图片的格式
if image_grid_type == 'default':
if image_grid_size is None:
w, h = G.output_shape[3], G.output_shape[2]
image_grid_size = np.clip(1920 / w, 3,
16), np.clip(1080 / h, 2, 16)
example_real_images, snapshot_fake_labels = training_set.get_random_minibatch(
np.prod(image_grid_size), labels=True)
snapshot_fake_latents = random_latents(np.prod(image_grid_size),
G.input_shape)
else:
raise ValueError('Invalid image_grid_type', image_grid_type)
# Theano input variables and compile generation func.
print 'Setting up Theano...'
real_images_var = T.TensorType('float32', [False] *
len(D.input_shape))('real_images_var')
# <class 'theano.tensor.var.TensorVariable'>
# print type(real_images_var),real_images_var
real_labels_var = T.TensorType(
'float32', [False] * len(training_set.labels.shape))('real_labels_var')
fake_latents_var = T.TensorType('float32', [False] *
len(G.input_shape))('fake_latents_var')
fake_labels_var = T.TensorType(
'float32', [False] * len(training_set.labels.shape))('fake_labels_var')
# 带有_var的均为输入张量
G_lrate = theano.shared(np.float32(0.0))
D_lrate = theano.shared(np.float32(0.0))
# share语法就是用来设定默认值的，返回复制的对象
gen_fn = theano.function([fake_latents_var, fake_labels_var],
Gs.eval_nd(fake_latents_var,
fake_labels_var,
ignore_unused_inputs=True),
on_unused_input='ignore')
# gen_fn 是一个函数，输入为：[fake_latents_var, fake_labels_var],
# 输出位：Gs.eval_nd(fake_latents_var, fake_labels_var, ignore_unused_inputs=True),
#生成函数
# Misc init.
#读入当前分辨率
resolution_log2 = int(np.round(np.log2(G.output_shape[2])))
#lod 精细度
initial_lod = max(
resolution_log2 - int(np.round(np.log2(lod_initial_resolution))), 0)
cur_lod = 0.0
min_lod, max_lod = -1.0, -2.0
fake_score_avg = 0.0
# Save example images.
snapshot_fake_images = gen_fn(snapshot_fake_latents, snapshot_fake_labels)
result_subdir = misc.create_result_subdir(config.result_dir,
config.run_desc)
misc.save_image_grid(example_real_images,
os.path.join(result_subdir, 'reals.png'),
drange=drange_orig,
grid_size=image_grid_size)
misc.save_image_grid(snapshot_fake_images,
os.path.join(result_subdir, 'fakes%06d.png' % 0),
drange=drange_viz,
grid_size=image_grid_size)
# Training loop.
# 这里才是主训练入口
# 注意在训练过程中不会跳出最外层while循环，因此更换分辨率等操作必然在while循环里
#现有图片数
cur_nimg = int(resume_kimg * 1000)
cur_tick = 0
tick_start_nimg = cur_nimg
tick_start_time = time.time()
tick_train_out = []
train_start_time = tick_start_time - resume_time
while cur_nimg < total_kimg * 1000:
# Calculate current LOD.
#计算当前精细度
cur_lod = initial_lod
if lod_training_kimg or lod_transition_kimg:
tlod = (cur_nimg / (1000.0 / speed_factor)) / (lod_training_kimg +
lod_transition_kimg)
cur_lod -= np.floor(tlod)
if lod_transition_kimg:
cur_lod -= max(
1.0 + (np.fmod(tlod, 1.0) - 1.0) *
(lod_training_kimg + lod_transition_kimg) /
lod_transition_kimg, 0.0)
cur_lod = max(cur_lod, 0.0)
# Look up resolution-dependent parameters.
cur_res = 2**(resolution_log2 - int(np.floor(cur_lod)))
# 当前分辨率
minibatch_size = minibatch_overrides.get(cur_res, minibatch_default)
tick_duration_kimg = tick_kimg_overrides.get(cur_res,
tick_kimg_default)
# Update network config.
# 更新网络结构
lrate_coef = misc.rampup(cur_nimg / 1000.0, rampup_kimg)
lrate_coef *= misc.rampdown_linear(cur_nimg / 1000.0, total_kimg,
rampdown_kimg)
G_lrate.set_value(np.float32(lrate_coef * G_learning_rate_max))
D_lrate.set_value(np.float32(lrate_coef * D_learning_rate_max))
if hasattr(G, 'cur_lod'): G.cur_lod.set_value(np.float32(cur_lod))
if hasattr(D, 'cur_lod'): D.cur_lod.set_value(np.float32(cur_lod))
# Setup training func for current LOD.
new_min_lod, new_max_lod = int(np.floor(cur_lod)), int(
np.ceil(cur_lod))
#print " cur_lod%f\n min_lod %f\n new_min_lod %f\n max_lod %f\n new_max_lod %f\n"%(cur_lod,min_lod,new_min_lod,max_lod,new_max_lod)
if min_lod != new_min_lod or max_lod != new_max_lod:
print 'Compiling training funcs...'
min_lod, max_lod = new_min_lod, new_max_lod
# Pre-process reals.
real_images_expr = real_images_var
if dequantize_reals:
rnd = theano.sandbox.rng_mrg.MRG_RandomStreams(
lasagne.random.get_rng().randint(1, 2147462579))
epsilon_noise = rnd.uniform(size=real_images_expr.shape,
low=-0.5,
high=0.5,
dtype='float32')
real_images_expr = T.cast(
real_images_expr, 'float32'
) + epsilon_noise # match original implementation of Improved Wasserstein
real_images_expr = misc.adjust_dynamic_range(
real_images_expr, drange_orig, drange_net)
if min_lod > 0: # compensate for shrink_based_on_lod
real_images_expr = T.extra_ops.repeat(real_images_expr,
2**min_lod,
axis=2)
real_images_expr = T.extra_ops.repeat(real_images_expr,
2**min_lod,
axis=3)
# Optimize loss.
G_loss, D_loss, real_scores_out, fake_scores_out = evaluate_loss(
G, D, min_lod, max_lod, real_images_expr, real_labels_var,
fake_latents_var, fake_labels_var, **config.loss)
G_updates = adam(G_loss,
G.trainable_params(),
learning_rate=G_lrate,
beta1=adam_beta1,
beta2=adam_beta2,
epsilon=adam_epsilon).items()
D_updates = adam(D_loss,
D.trainable_params(),
learning_rate=D_lrate,
beta1=adam_beta1,
beta2=adam_beta2,
epsilon=adam_epsilon).items()
D_train_fn = theano.function([
real_images_var, real_labels_var, fake_latents_var,
fake_labels_var
], [G_loss, D_loss, real_scores_out, fake_scores_out],
updates=D_updates,
on_unused_input='ignore')
G_train_fn = theano.function([fake_latents_var, fake_labels_var],
[],
updates=G_updates + Gs.updates,
on_unused_input='ignore')
for idx in xrange(D_training_repeats):
mb_reals, mb_labels = training_set.get_random_minibatch(
minibatch_size,
lod=cur_lod,
shrink_based_on_lod=True,
labels=True)
print "******* test minibatch"
print "mb_reals"
print idx, D_training_repeats
print mb_reals.shape, mb_labels.shape
#print mb_reals
print "mb_labels"
#print mb_labels
mb_train_out = D_train_fn(
mb_reals, mb_labels,
random_latents(minibatch_size, G.input_shape),
random_labels(minibatch_size, training_set))
cur_nimg += minibatch_size
tick_train_out.append(mb_train_out)
G_train_fn(random_latents(minibatch_size, G.input_shape),
random_labels(minibatch_size, training_set))
# Fade in D noise if we're close to becoming unstable
fake_score_cur = np.clip(np.mean(mb_train_out[1]), 0.0, 1.0)
fake_score_avg = fake_score_avg * gdrop_beta + fake_score_cur * (
1.0 - gdrop_beta)
gdrop_strength = gdrop_coef * (max(fake_score_avg - gdrop_lim, 0.0)**
gdrop_exp)
if hasattr(D, 'gdrop_strength'):
D.gdrop_strength.set_value(np.float32(gdrop_strength))
# Perform maintenance operations once per tick.
if cur_nimg >= tick_start_nimg + tick_duration_kimg * 1000 or cur_nimg >= total_kimg * 1000:
cur_tick += 1
cur_time = time.time()
tick_kimg = (cur_nimg - tick_start_nimg) / 1000.0
tick_start_nimg = cur_nimg
tick_time = cur_time - tick_start_time
tick_start_time = cur_time
tick_train_avg = tuple(
np.mean(np.concatenate([np.asarray(v).flatten()
for v in vals]))
for vals in zip(*tick_train_out))
tick_train_out = []
# Print progress.
print 'tick %-5d kimg %-8.1f lod %-5.2f minibatch %-4d time %-12s sec/tick %-9.1f sec/kimg %-6.1f Dgdrop %-8.4f Gloss %-8.4f Dloss %-8.4f Dreal %-8.4f Dfake %-8.4f' % (
(cur_tick, cur_nimg / 1000.0, cur_lod, minibatch_size,
misc.format_time(cur_time - train_start_time), tick_time,
tick_time / tick_kimg, gdrop_strength) + tick_train_avg)
# Visualize generated images.
if cur_tick % image_snapshot_ticks == 0 or cur_nimg >= total_kimg * 1000:
snapshot_fake_images = gen_fn(snapshot_fake_latents,
snapshot_fake_labels)
misc.save_image_grid(snapshot_fake_images,
os.path.join(
result_subdir,
'fakes%06d.png' % (cur_nimg / 1000)),
drange=drange_viz,
grid_size=image_grid_size)
# Save network snapshot every N ticks.
if cur_tick % network_snapshot_ticks == 0 or cur_nimg >= total_kimg * 1000:
misc.save_pkl(
(G, D, Gs),
os.path.join(
result_subdir,
'network-snapshot-%06d.pkl' % (cur_nimg / 1000)))
# Write final results.
misc.save_pkl((G, D, Gs), os.path.join(result_subdir, 'network-final.pkl'))
training_set.close()
print 'Done.'
with open(os.path.join(result_subdir, '_training-done.txt'), 'wt'):
pass