def sigmoid_rampup(global_step, start_iter, end_iter):
if global_step < start_iter:
return 0.0
rampup_length = end_iter - start_iter
cur_ramp = global_step - start_iter
cur_ramp = np.clip(cur_ramp, 0, rampup_length)
phase = 1.0 - cur_ramp / rampup_length
return np.exp(-5.0 * phase * phase)
itr = inputs.get_data_iter(batch_size=FLAGS.bs_c, subset=FLAGS.n_labels)
# itr_u = inputs.get_data_iter(batch_size=FLAGS.bs_c)
netG, optim_G = inputs.get_generator_optimizer()
netD, optim_D = inputs.get_discriminator_optimizer()
netC, optim_c = inputs.get_classifier_optimizer()
netG, netD, netC = netG.to(device), netD.to(device), netC.to(device)
netG = nn.DataParallel(netG)
netD = nn.DataParallel(netD)
netC = nn.DataParallel(netC)
netC_T, _ = inputs.get_classifier_optimizer()
netC_T = netC_T.to(device)
netC_T = nn.DataParallel(netC_T)
netC.train()
netC_T.train()
Torture.update_average(netC_T, netC, 0)
for p in netC_T.parameters():
p.requires_grad_(False)
if FLAGS.c_step == "ramp_swa":
netC_swa, _ = inputs.get_classifier_optimizer()
torch.cuda.manual_seed(1235)
np.random.seed(1236)
torch.backends.cudnn.deterministic = True
torch.backends.cudnn.benchmark = True
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
FLAGS.device = device
nlabels = FLAGS.y_dist.dim
batch_size = FLAGS.training.batch_size
checkpoint_io = CheckpointIO(checkpoint_dir=MODELS_FOLDER)
logger = Logger(log_dir=SUMMARIES_FOLDER)
itr = inputs.get_data_iter(batch_size)
GNet, GOptim = inputs.get_generator_optimizer()
DNet, DOptim = inputs.get_discriminator_optimizer()
GNet_test = copy.deepcopy(GNet)
update_average(GNet_test, GNet, 0.0)
ydist = get_ydist(**vars(FLAGS.y_dist))
zdist = get_zdist(**vars(FLAGS.z_dist))
checkpoint_io.register_modules(GNet=GNet,
GOptim=GOptim,
DNet=DNet,
DOptim=DOptim)
checkpoint_io.register_modules(GNet_test=GNet_test)
trainer_dict = {"baseline": trainer_baseline, "fd": trainer_fd}
trainer_used = trainer_dict[FLAGS.trainer.name]
trainer = trainer_used.Trainer(GNet, DNet, GOptim, DOptim,
**vars(FLAGS.trainer.kwargs))