def main():
args = cfg.parse_args()
torch.manual_seed(args.random_seed)
random.seed(args.random_seed)
torch.cuda.manual_seed(args.random_seed)
assert args.exp_name
assert args.load_path.endswith('.pth')
assert os.path.exists(args.load_path)
args.path_helper = set_log_dir('logs_eval', args.exp_name)
logger = create_logger(args.path_helper['log_path'], phase='test')
# set tf env
_init_inception()
inception_path = check_or_download_inception(None)
create_inception_graph(inception_path)
# import network
gen_net = eval('models.' + args.model + '.Generator')(args=args).cuda()
# fid stat
if args.dataset.lower() == 'cifar10':
fid_stat = 'fid_stat/fid_stats_cifar10_train.npz'
else:
raise NotImplementedError(f'no fid stat for {args.dataset.lower()}')
assert os.path.exists(fid_stat)
# initial
np.random.seed(args.random_seed)
fixed_z = torch.cuda.FloatTensor(
np.random.normal(0, 1, (25, args.latent_dim)))
if args.percent < 0.9:
pruning_generate(gen_net, (1 - args.percent))
see_remain_rate(gen_net)
# set writer
logger.info(f'=> resuming from {args.load_path}')
checkpoint_file = args.load_path
assert os.path.exists(checkpoint_file)
checkpoint = torch.load(checkpoint_file)
if 'avg_gen_state_dict' in checkpoint:
gen_net.load_state_dict(checkpoint['avg_gen_state_dict'])
epoch = checkpoint['epoch']
logger.info(f'=> loaded checkpoint {checkpoint_file} (epoch {epoch})')
else:
gen_net.load_state_dict(checkpoint)
logger.info(f'=> loaded checkpoint {checkpoint_file}')
logger.info(args)
writer_dict = {
'writer': SummaryWriter(args.path_helper['log_path']),
'valid_global_steps': 0,
}
inception_score, fid_score = validate(args, fixed_z, fid_stat, gen_net,
writer_dict, epoch)
logger.info(f'Inception score: {inception_score}, FID score: {fid_score}.')
writer_dict['writer'].close()
def main():
args = cfg.parse_args()
random.seed(args.random_seed)
torch.manual_seed(args.random_seed)
torch.cuda.manual_seed(args.random_seed)
np.random.seed(args.random_seed)
# set tf env
_init_inception()
inception_path = check_or_download_inception(None)
create_inception_graph(inception_path)
# import netwo
# weight init
def weights_init(m):
classname = m.__class__.__name__
if classname.find('Conv2d') != -1:
if args.init_type == 'normal':
nn.init.normal_(m.weight.data, 0.0, 0.02)
elif args.init_type == 'orth':
nn.init.orthogonal_(m.weight.data)
elif args.init_type == 'xavier_uniform':
nn.init.xavier_uniform(m.weight.data, 1.)
else:
raise NotImplementedError('{} unknown inital type'.format(
args.init_type))
elif classname.find('BatchNorm2d') != -1:
nn.init.normal_(m.weight.data, 1.0, 0.02)
nn.init.constant_(m.bias.data, 0.0)
gen_net = eval('models.' + args.model + '.Generator')(args=args).cuda()
dis_net = eval('models.' + args.model + '.Discriminator')(args=args).cuda()
gen_net.apply(weights_init)
dis_net.apply(weights_init)
avg_gen_net = deepcopy(gen_net)
initial_gen_net_weight = torch.load(os.path.join(args.init_path,
'initial_gen_net.pth'),
map_location="cpu")
initial_dis_net_weight = torch.load(os.path.join(args.init_path,
'initial_dis_net.pth'),
map_location="cpu")
assert id(initial_dis_net_weight) != id(dis_net.state_dict())
assert id(initial_gen_net_weight) != id(gen_net.state_dict())
# set optimizer
gen_optimizer = torch.optim.Adam(
filter(lambda p: p.requires_grad, gen_net.parameters()), args.g_lr,
(args.beta1, args.beta2))
dis_optimizer = torch.optim.Adam(
filter(lambda p: p.requires_grad, dis_net.parameters()), args.d_lr,
(args.beta1, args.beta2))
gen_scheduler = LinearLrDecay(gen_optimizer, args.g_lr, 0.0, 0,
args.max_iter * args.n_critic)
dis_scheduler = LinearLrDecay(dis_optimizer, args.d_lr, 0.0, 0,
args.max_iter * args.n_critic)
# set up data_loader
dataset = datasets.ImageDataset(args)
train_loader = dataset.train
# fid stat
if args.dataset.lower() == 'cifar10':
fid_stat = 'fid_stat/fid_stats_cifar10_train.npz'
elif args.dataset.lower() == 'stl10':
fid_stat = 'fid_stat/fid_stats_stl10_train.npz'
else:
raise NotImplementedError('no fid stat for %s' % args.dataset.lower())
assert os.path.exists(fid_stat)
# epoch number for dis_net
args.max_epoch = args.max_epoch * args.n_critic
if args.max_iter:
args.max_epoch = np.ceil(args.max_iter * args.n_critic /
len(train_loader))
# initial
fixed_z = torch.cuda.FloatTensor(
np.random.normal(0, 1, (25, args.latent_dim)))
start_epoch = 0
best_fid = 1e4
print('=> resuming from %s' % args.load_path)
assert os.path.exists(args.load_path)
checkpoint_file = args.load_path
assert os.path.exists(checkpoint_file)
checkpoint = torch.load(checkpoint_file)
pruning_generate(gen_net, checkpoint['gen_state_dict'])
dis_net.load_state_dict(checkpoint['dis_state_dict'])
total = 0
total_nonzero = 0
for m in dis_net.modules():
if isinstance(m, nn.Conv2d):
total += m.weight_orig.data.numel()
mask = m.weight_orig.data.abs().clone().gt(0).float().cuda()
total_nonzero += torch.sum(mask)
conv_weights = torch.zeros(total)
index = 0
for m in dis_net.modules():
if isinstance(m, nn.Conv2d):
size = m.weight_orig.data.numel()
conv_weights[index:(
index + size)] = m.weight_orig.data.view(-1).abs().clone()
index += size
y, i = torch.sort(conv_weights)
# thre_index = int(total * args.percent)
# only care about the non zero weights
# e.g: total = 100, total_nonzero = 80, percent = 0.2, thre_index = 36, that means keep 64
thre_index = total - total_nonzero
thre = y[int(thre_index)]
pruned = 0
print('Pruning threshold: {}'.format(thre))
zero_flag = False
masks = OrderedDict()
for k, m in enumerate(dis_net.modules()):
if isinstance(m, nn.Conv2d):
weight_copy = m.weight_orig.data.abs().clone()
mask = weight_copy.gt(thre).float()
masks[k] = mask
pruned = pruned + mask.numel() - torch.sum(mask)
m.weight_orig.data.mul_(mask)
if int(torch.sum(mask)) == 0:
zero_flag = True
print(
'layer index: {:d} \t total params: {:d} \t remaining params: {:d}'
.format(k, mask.numel(), int(torch.sum(mask))))
print('Total conv params: {}, Pruned conv params: {}, Pruned ratio: {}'.
format(total, pruned, pruned / total))
pruning_generate(avg_gen_net, checkpoint['gen_state_dict'])
see_remain_rate(gen_net)
if not args.finetune_G:
gen_weight = gen_net.state_dict()
gen_orig_weight = rewind_weight(initial_gen_net_weight,
gen_weight.keys())
gen_weight.update(gen_orig_weight)
gen_net.load_state_dict(gen_weight)
gen_avg_param = copy_params(gen_net)
if args.finetune_D:
dis_net.load_state_dict(checkpoint['dis_state_dict'])
else:
dis_net.load_state_dict(initial_dis_net_weight)
for k, m in enumerate(dis_net.modules()):
if isinstance(m, nn.Conv2d):
m.weight_orig.data.mul_(masks[k])
orig_dis_net = eval('models.' + args.model +
'.Discriminator')(args=args).cuda()
orig_dis_net.load_state_dict(checkpoint['dis_state_dict'])
orig_dis_net.eval()
args.path_helper = set_log_dir('logs',
args.exp_name + "_{}".format(args.percent))
logger = create_logger(args.path_helper['log_path'])
#logger.info('=> loaded checkpoint %s (epoch %d)' % (checkpoint_file, start_epoch))
logger.info(args)
writer_dict = {
'writer': SummaryWriter(args.path_helper['log_path']),
'train_global_steps': start_epoch * len(train_loader),
'valid_global_steps': start_epoch // args.val_freq,
}
# train loop
for epoch in tqdm(range(int(start_epoch), int(args.max_epoch)),
desc='total progress'):
lr_schedulers = (gen_scheduler,
dis_scheduler) if args.lr_decay else None
see_remain_rate(gen_net)
see_remain_rate_orig(dis_net)
if not args.use_kd_D:
train_with_mask(args, gen_net, dis_net, gen_optimizer,
dis_optimizer, gen_avg_param, train_loader, epoch,
writer_dict, masks, lr_schedulers)
else:
train_with_mask_kd(args, gen_net, dis_net, orig_dis_net,
gen_optimizer, dis_optimizer, gen_avg_param,
train_loader, epoch, writer_dict, masks,
lr_schedulers)
if epoch and epoch % args.val_freq == 0 or epoch == int(
args.max_epoch) - 1:
backup_param = copy_params(gen_net)
load_params(gen_net, gen_avg_param)
inception_score, fid_score = validate(args, fixed_z, fid_stat,
gen_net, writer_dict, epoch)
logger.info(
'Inception score: %.4f, FID score: %.4f || @ epoch %d.' %
(inception_score, fid_score, epoch))
load_params(gen_net, backup_param)
if fid_score < best_fid:
best_fid = fid_score
is_best = True
else:
is_best = False
else:
is_best = False
avg_gen_net.load_state_dict(gen_net.state_dict())
load_params(avg_gen_net, gen_avg_param)
save_checkpoint(
{
'epoch': epoch + 1,
'model': args.model,
'gen_state_dict': gen_net.state_dict(),
'dis_state_dict': dis_net.state_dict(),
'avg_gen_state_dict': avg_gen_net.state_dict(),
'gen_optimizer': gen_optimizer.state_dict(),
'dis_optimizer': dis_optimizer.state_dict(),
'best_fid': best_fid,
'path_helper': args.path_helper
}, is_best, args.path_helper['ckpt_path'])
def main():
args = cfg.parse_args()
random.seed(args.random_seed)
torch.manual_seed(args.random_seed)
torch.cuda.manual_seed(args.random_seed)
# set tf env
_init_inception()
inception_path = check_or_download_inception(None)
create_inception_graph(inception_path)
# import netwo
# weight init
def weights_init(m):
classname = m.__class__.__name__
if classname.find('Conv2d') != -1:
if args.init_type == 'normal':
nn.init.normal_(m.weight.data, 0.0, 0.02)
elif args.init_type == 'orth':
nn.init.orthogonal_(m.weight.data)
elif args.init_type == 'xavier_uniform':
nn.init.xavier_uniform(m.weight.data, 1.)
else:
raise NotImplementedError('{} unknown inital type'.format(
args.init_type))
elif classname.find('BatchNorm2d') != -1:
nn.init.normal_(m.weight.data, 1.0, 0.02)
nn.init.constant_(m.bias.data, 0.0)
gen_net = eval('models.' + args.model + '.Generator')(args=args).cuda()
dis_net = eval('models.' + args.model + '.Discriminator')(args=args).cuda()
gen_net.apply(weights_init)
dis_net.apply(weights_init)
avg_gen_net = deepcopy(gen_net)
initial_gen_net_weight = torch.load(os.path.join(args.init_path,
'initial_gen_net.pth'),
map_location="cpu")
initial_dis_net_weight = torch.load(os.path.join(args.init_path,
'initial_dis_net.pth'),
map_location="cpu")
assert id(initial_dis_net_weight) != id(dis_net.state_dict())
assert id(initial_gen_net_weight) != id(gen_net.state_dict())
# set optimizer
gen_optimizer = torch.optim.Adam(
filter(lambda p: p.requires_grad, gen_net.parameters()), args.g_lr,
(args.beta1, args.beta2))
dis_optimizer = torch.optim.Adam(
filter(lambda p: p.requires_grad, dis_net.parameters()), args.d_lr,
(args.beta1, args.beta2))
gen_scheduler = LinearLrDecay(gen_optimizer, args.g_lr, 0.0, 0,
args.max_iter * args.n_critic)
dis_scheduler = LinearLrDecay(dis_optimizer, args.d_lr, 0.0, 0,
args.max_iter * args.n_critic)
# set up data_loader
dataset = datasets.ImageDataset(args)
train_loader = dataset.train
# fid stat
if args.dataset.lower() == 'cifar10':
fid_stat = 'fid_stat/fid_stats_cifar10_train.npz'
elif args.dataset.lower() == 'stl10':
fid_stat = 'fid_stat/fid_stats_stl10_train.npz'
else:
raise NotImplementedError('no fid stat for %s' % args.dataset.lower())
assert os.path.exists(fid_stat)
# epoch number for dis_net
args.max_epoch = args.max_epoch * args.n_critic
if args.max_iter:
args.max_epoch = np.ceil(args.max_iter * args.n_critic /
len(train_loader))
# initial
fixed_z = torch.cuda.FloatTensor(
np.random.normal(0, 1, (25, args.latent_dim)))
start_epoch = 0
best_fid = 1e4
print('=> resuming from %s' % args.load_path)
assert os.path.exists(args.load_path)
checkpoint_file = args.load_path
assert os.path.exists(checkpoint_file)
checkpoint = torch.load(checkpoint_file)
pruning_generate(gen_net, checkpoint['gen_state_dict'])
pruning_generate(avg_gen_net, checkpoint['gen_state_dict'])
see_remain_rate(gen_net)
if not args.finetune_G:
gen_weight = gen_net.state_dict()
gen_orig_weight = rewind_weight(initial_gen_net_weight,
gen_weight.keys())
gen_weight.update(gen_orig_weight)
gen_net.load_state_dict(gen_weight)
gen_avg_param = copy_params(gen_net)
if args.finetune_D:
dis_net.load_state_dict(checkpoint['dis_state_dict'])
else:
dis_net.load_state_dict(initial_dis_net_weight)
args.path_helper = set_log_dir('logs',
args.exp_name + "_{}".format(args.percent))
logger = create_logger(args.path_helper['log_path'])
#logger.info('=> loaded checkpoint %s (epoch %d)' % (checkpoint_file, start_epoch))
logger.info(args)
writer_dict = {
'writer': SummaryWriter(args.path_helper['log_path']),
'train_global_steps': start_epoch * len(train_loader),
'valid_global_steps': start_epoch // args.val_freq,
}
# train loop
for epoch in tqdm(range(int(start_epoch), int(args.max_epoch)),
desc='total progress'):
lr_schedulers = (gen_scheduler,
dis_scheduler) if args.lr_decay else None
see_remain_rate(gen_net)
train(args, gen_net, dis_net, gen_optimizer, dis_optimizer,
gen_avg_param, train_loader, epoch, writer_dict, lr_schedulers)
if epoch and epoch % args.val_freq == 0 or epoch == int(
args.max_epoch) - 1:
backup_param = copy_params(gen_net)
load_params(gen_net, gen_avg_param)
inception_score, fid_score = validate(args, fixed_z, fid_stat,
gen_net, writer_dict, epoch)
logger.info(
'Inception score: %.4f, FID score: %.4f || @ epoch %d.' %
(inception_score, fid_score, epoch))
load_params(gen_net, backup_param)
if fid_score < best_fid:
best_fid = fid_score
is_best = True
else:
is_best = False
else:
is_best = False
avg_gen_net.load_state_dict(gen_net.state_dict())
load_params(avg_gen_net, gen_avg_param)
save_checkpoint(
{
'epoch': epoch + 1,
'model': args.model,
'gen_state_dict': gen_net.state_dict(),
'dis_state_dict': dis_net.state_dict(),
'avg_gen_state_dict': avg_gen_net.state_dict(),
'gen_optimizer': gen_optimizer.state_dict(),
'dis_optimizer': dis_optimizer.state_dict(),
'best_fid': best_fid,
'path_helper': args.path_helper
}, is_best, args.path_helper['ckpt_path'])
import torch
import models
import cfg
import numpy as np
from utils.utils import set_log_dir, save_checkpoint, create_logger, pruning_generate, see_remain_rate, rewind_weight, see_remain_rate_orig
args = cfg.parse_args()
gen_net = eval('models.sngan_cifar10.Generator')(args=args).cuda()
pruning_generate(gen_net, 1 - 0.8**10)
checkpoint = torch.load(args.resume)
print(checkpoint['gen_state_dict'].keys())
gen_net.load_state_dict(checkpoint['gen_state_dict'])
see_remain_rate(gen_net)
num_kernel = 0
zero_kernel = 0
n_kernel = 0
state_dict = checkpoint['gen_state_dict']
for key in state_dict.keys():
if 'mask' in key:
mask = state_dict[key]
print(mask.shape)
num_kernel = num_kernel + mask.shape[1]
for i in range(mask.shape[1]):
if np.all(mask[:, i, :, :].cpu().numpy() == 0):
zero_kernel = zero_kernel + 1
if np.sum(mask[:, i, :, :].cpu().numpy() ==
0) > mask[:, i, :, :].reshape(-1).shape[0] * 0.9:
n_kernel = n_kernel + 1
print(zero_kernel)
print(n_kernel)
print(num_kernel)