def test_per_channel_per_snr(args, h, net_for_testtraining, test_snr, actual_channel_num, PATH_after_adapt, if_val):
if torch.cuda.is_available():
net_for_testtraining.load_state_dict(torch.load(PATH_after_adapt))
else:
net_for_testtraining.load_state_dict(torch.load(PATH_after_adapt, map_location = torch.device('cpu')))
batch_size = args.test_size
success_test = 0
Eb_over_N_test = pow(10, (test_snr / 10))
R = args.bit_num / args.channel_num
noise_var_test = 1 / (2 * R * Eb_over_N_test)
Noise_test = torch.distributions.multivariate_normal.MultivariateNormal(torch.zeros(actual_channel_num),
noise_var_test * torch.eye(
actual_channel_num))
m_test, label_test = message_gen(args.bit_num, batch_size)
m_test = m_test.type(torch.FloatTensor).to(args.device)
label_test = label_test.type(torch.LongTensor).to(args.device)
out_test = net_for_testtraining(m_test, h, Noise_test, args.device, args.if_RTN)
for ind_mb in range(label_test.shape[0]):
assert label_test.shape[0] == batch_size
if torch.argmax(out_test[ind_mb]) == label_test[ind_mb]: # means correct classification
success_test += 1
else:
pass
accuracy = success_test / label_test.shape[0]
if not if_val:
print('for snr: ', test_snr, 'bler: ', 1 - accuracy)
return 1 - accuracy
def test_per_channel_per_snr_conven_approach(args, est_h, test_size, h, test_snr, actual_channel_num):
batch_size = test_size
success_test = 0
Eb_over_N_test = pow(10, (test_snr / 10))
R = args.bit_num / args.channel_num
noise_var_test = 1 / (2 * R * Eb_over_N_test)
Noise_test = torch.distributions.multivariate_normal.MultivariateNormal(torch.zeros(actual_channel_num),
noise_var_test * torch.eye(actual_channel_num))
print('payload num for conv', batch_size)
m_test, label_test = message_gen(args.bit_num, batch_size)
label_test = label_test.type(torch.LongTensor).to(args.device)
if args.if_fix_random_seed:
reset_randomness(args.random_seed + 7777) # always have same noise for test since this can see the actual effect of # of adaptations
actual_transmitted_symbol = four_qam_uncoded_modulation(args.bit_num, args.channel_num, label_test)#m_test)
received_signal = channel(h, actual_transmitted_symbol, Noise_test, args.device, args.if_AWGN)
# rx (maximum likelihood)
out_test = demodulation(args.bit_num, args.channel_num, args.tap_num, est_h, received_signal, args.device)
for ind_mb in range(label_test.shape[0]):
assert label_test.shape[0] == batch_size
if torch.argmax(out_test[ind_mb]) == label_test[ind_mb]: # means correct classification
success_test += 1
else:
pass
accuracy = success_test / label_test.shape[0]
print('accuracy', accuracy)
return 1 - accuracy
def one_frame_conventional_training_tx_nn_rx_nn(args, h, Noise, Noise_relax,
tx_net_for_testtraining,
rx_net_for_testtraining,
rx_testtraining_optimiser,
epochs,
num_pilots_test_in_one_mb):
# only for runtime
relax_sigma = args.relax_sigma
m, label = message_gen(args.bit_num, num_pilots_test_in_one_mb)
m = m.type(torch.FloatTensor).to(args.device)
label = label.type(torch.LongTensor).to(args.device)
tx_net_for_testtraining.zero_grad()
# tx
tx_symb_mean, actual_transmitted_symbol = tx_net_for_testtraining(
m, args.device, relax_sigma, Noise_relax)
# channel
received_signal = channel(h, actual_transmitted_symbol, Noise, args.device,
args.if_AWGN)
#### we can do multiple training with given received_signal
for rx_training_iter in range(args.fix_tx_multi_adapt_rx_iter_num):
rx_net_for_testtraining.zero_grad()
received_signal_curr_mb = received_signal
label_curr_mb = label
out = rx_net_for_testtraining(received_signal_curr_mb, args.if_RTN,
args.device)
loss_rx = receiver_loss(out, label_curr_mb)
loss_rx.backward()
if args.if_test_training_adam:
if args.if_adam_after_sgd:
if epochs < args.num_meta_local_updates:
for f in rx_net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.data * args.lr_meta_inner)
elif epochs == args.num_meta_local_updates:
rx_testtraining_optimiser = torch.optim.Adam(
rx_net_for_testtraining.parameters(),
args.lr_testtraining)
rx_testtraining_optimiser.step()
else:
rx_testtraining_optimiser.step()
else:
rx_testtraining_optimiser.step()
else:
for f in rx_net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.detach() * args.lr_testtraining)
loss_tx = 0
return rx_testtraining_optimiser, float(loss_rx), float(loss_tx)
def one_frame_conventional_training_tx_bpsk_rx_nn(args, h, Noise,
rx_net_for_testtraining,
rx_testtraining_optimiser,
num_pilots_test_in_one_mb):
# only for runtime
m, label = message_gen(args.bit_num, num_pilots_test_in_one_mb)
m = m.type(torch.FloatTensor).to(args.device)
label = label.type(torch.LongTensor).to(args.device)
tx_net_for_testtraining = None # we do not need tx neural net
# tx
actual_transmitted_symbol = four_qam_uncoded_modulation(
args.bit_num, args.channel_num, label) # label instead m
# channel
received_signal = channel(h, actual_transmitted_symbol, Noise, args.device,
args.if_AWGN)
#### we can do multiple training with given received_signal
for rx_training_iter in range(args.fix_tx_multi_adapt_rx_iter_num):
rx_net_for_testtraining.zero_grad()
received_signal_curr_mb = received_signal
label_curr_mb = label
out = rx_net_for_testtraining(received_signal_curr_mb, args.if_RTN,
args.device)
loss_rx = receiver_loss(out, label_curr_mb)
loss_rx.backward()
if args.if_test_training_adam:
if args.if_adam_after_sgd:
if rx_training_iter < args.num_meta_local_updates:
for f in rx_net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.data * args.lr_meta_inner)
elif rx_training_iter == args.num_meta_local_updates:
rx_testtraining_optimiser = torch.optim.Adam(
rx_net_for_testtraining.parameters(),
args.lr_testtraining)
rx_testtraining_optimiser.step()
else:
rx_testtraining_optimiser.step()
else:
rx_testtraining_optimiser.step()
else:
for f in rx_net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.detach() * args.lr_testtraining)
loss_tx = 0
return rx_testtraining_optimiser, float(loss_rx), float(loss_tx)
def one_frame_joint_training(args, h, Noise, Noise_relax, curr_tx_net_list,
curr_rx_net_list, init_tx_net_list,
init_rx_net_list):
# we only transmit once and update both rx and tx since we are consdiering stochastic encoder always
# joint training can be obtained via MAML without no inner update
tx_meta_intermediate = meta_tx(if_relu=args.if_relu)
rx_meta_intermediate = meta_rx(if_relu=args.if_relu)
relax_sigma = args.relax_sigma
m, label = message_gen(args.bit_num, args.pilots_num_meta_train_query)
m = m.type(torch.FloatTensor).to(args.device)
label = label.type(torch.LongTensor).to(args.device)
if args.fix_bpsk_tx:
actual_transmitted_symbol = four_qam_uncoded_modulation(
args.bit_num, args.channel_num, label) # label instead m
else:
# tx
tx_symb_mean, actual_transmitted_symbol = tx_meta_intermediate(
m, curr_tx_net_list, args.if_bias, args.device, relax_sigma,
Noise_relax)
# channel
received_signal = channel(h, actual_transmitted_symbol, Noise, args.device,
args.if_AWGN)
# rx
out = rx_meta_intermediate(received_signal, curr_rx_net_list, args.if_bias,
args.device, args.if_RTN)
# for rx
loss_rx = receiver_loss(out, label)
joint_grad_rx = torch.autograd.grad(loss_rx,
init_rx_net_list,
create_graph=False)
if args.fix_bpsk_tx:
joint_grad_tx = None
loss_tx = 0
else:
received_reward_from_rx = feedback_from_rx(out, label)
loss_tx = transmitter_loss(actual_transmitted_symbol, tx_symb_mean,
received_reward_from_rx, args.relax_sigma)
joint_grad_tx = torch.autograd.grad(loss_tx,
init_tx_net_list,
create_graph=False,
retain_graph=True)
return joint_grad_rx, joint_grad_tx, float(loss_rx), float(loss_tx)
def test_per_channel_per_snr(args, test_size, h, tx_net_for_testtraining, rx_net_for_testtraining, test_snr, actual_channel_num, PATH_after_adapt_tx, PATH_after_adapt_rx):
tx_net_for_testtraining.load_state_dict(torch.load(PATH_after_adapt_tx))
rx_net_for_testtraining.load_state_dict(torch.load(PATH_after_adapt_rx))
batch_size = test_size
success_test = 0
Eb_over_N_test = pow(10, (test_snr / 10))
R = args.bit_num / args.channel_num
noise_var_test = 1 / (2 * R * Eb_over_N_test)
Noise_test = torch.distributions.multivariate_normal.MultivariateNormal(torch.zeros(actual_channel_num),
noise_var_test * torch.eye(actual_channel_num))
m_test, label_test = message_gen(args.bit_num, batch_size)
m_test = m_test.type(torch.FloatTensor).to(args.device)
label_test = label_test.type(torch.LongTensor).to(args.device)
for f in tx_net_for_testtraining.parameters():
if f.grad is not None:
f.grad.detach()
f.grad.zero_()
rx_net_for_testtraining.zero_grad()
if args.if_fix_random_seed:
reset_randomness(args.random_seed + 7777) # always have same noise for test since this can see the actual effect of # of adaptations
if args.fix_bpsk_tx_train_nn_rx_during_runtime:
actual_transmitted_symbol = four_qam_uncoded_modulation(args.bit_num, args.channel_num,
label_test) # label instead m
else:
tx_symb_mean, actual_transmitted_symbol = tx_net_for_testtraining(m_test, args.device, 0, None) # no relaxation
tx_symb_mean = None # we don't need during test
# channel
received_signal = channel(h, actual_transmitted_symbol, Noise_test, args.device, args.if_AWGN)
# rx
out_test = rx_net_for_testtraining(received_signal, args.if_RTN, args.device)
for ind_mb in range(label_test.shape[0]):
assert label_test.shape[0] == batch_size
if torch.argmax(out_test[ind_mb]) == label_test[ind_mb]: # means correct classification
success_test += 1
else:
pass
accuracy = success_test / label_test.shape[0]
return 1 - accuracy
def test_training(args, h, net_for_testtraining, Noise, PATH_before_adapt, PATH_after_adapt, adapt_steps): #PATH_before_adapt can be meta-learneds
# initialize network (net_for_testtraining) (net is for meta-training)
if torch.cuda.is_available():
net_for_testtraining.load_state_dict(torch.load(PATH_before_adapt))
else:
net_for_testtraining.load_state_dict(torch.load(PATH_before_adapt, map_location = torch.device('cpu')))
if args.if_test_training_adam and not args.if_adam_after_sgd:
testtraining_optimiser = torch.optim.Adam(net_for_testtraining.parameters(), args.lr_testtraining)
else:
pass
num_adapt = adapt_steps
for epochs in range(num_adapt):
m, label = message_gen(args.bit_num, args.mb_size)
m = m.type(torch.FloatTensor).to(args.device)
label = label.type(torch.LongTensor).to(args.device)
for f in net_for_testtraining.parameters():
if f.grad is not None:
f.grad.detach()
f.grad.zero_()
out = net_for_testtraining(m, h, Noise, args.device, args.if_RTN)
loss = torch.nn.functional.cross_entropy(out, label)
# grad calculation
loss.backward()
### adapt (update) parameter
if args.if_test_training_adam:
if args.if_adam_after_sgd:
if epochs < args.num_meta_local_updates:
for f in net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.data * args.lr_meta_inner)
elif epochs == args.num_meta_local_updates:
testtraining_optimiser = torch.optim.Adam(net_for_testtraining.parameters(),
args.lr_testtraining)
testtraining_optimiser.step()
else:
testtraining_optimiser.step()
else:
testtraining_optimiser.step()
else:
for f in net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.data * args.lr_testtraining)
# saved adapted network for calculate BLER
torch.save(net_for_testtraining.state_dict(), PATH_after_adapt)
def one_iter_mmse_ch_est(args, h, Noise, num_pilots_test):
m, label = message_gen(args.bit_num, num_pilots_test)
m = m.type(torch.FloatTensor).to(args.device)
label = label.type(torch.LongTensor).to(args.device)
actual_transmitted_symbol = four_qam_uncoded_modulation(
args.bit_num, args.channel_num, label) # label instead m
# channel
received_signal = channel(h, actual_transmitted_symbol, Noise, args.device,
args.if_AWGN)
est_h = channel_estimation(args, actual_transmitted_symbol,
received_signal, args.tap_num)
h_numpy = h.cpu().numpy()
h_complex = np.zeros((args.tap_num, 1), dtype=complex)
for ind_h in range(args.tap_num):
h_complex[ind_h] = h_numpy[2 * ind_h] + h_numpy[2 * ind_h + 1] * 1j
error_h = np.matmul(np.conj(np.transpose(h_complex - est_h)),
h_complex - est_h)
return est_h, error_h
def one_iter_joint_training_sim_fix_stoch_encoder(
args, h, Noise, Noise_relax, Noise_feedback, curr_tx_net_list,
curr_rx_net_list, init_tx_net_list, init_rx_net_list, if_local_update,
remove_dependency_to_updated_para_tmp, inner_loop):
# given net list, run meta_net
# we only transmit once and update both rx and tx since we are consdiering stochastic encoder always
tx_meta_intermediate = meta_tx(if_relu=args.if_relu)
rx_meta_intermediate = meta_rx(if_relu=args.if_relu)
relax_sigma = args.relax_sigma
m, label = message_gen(args.bit_num, args.mb_size)
m = m.type(torch.FloatTensor).to(args.device)
label = label.type(torch.LongTensor).to(args.device)
# tx
tx_symb_mean, actual_transmitted_symbol = tx_meta_intermediate(
m, curr_tx_net_list, args.if_bias, args.device, relax_sigma,
Noise_relax)
# channel
received_signal = channel(h, actual_transmitted_symbol, Noise, args.device,
args.if_AWGN)
# rx
out = rx_meta_intermediate(received_signal, curr_rx_net_list, args.if_bias,
args.device, args.if_RTN)
# for rx
loss_rx = receiver_loss(out, label)
joint_grad_rx = torch.autograd.grad(loss_rx,
init_rx_net_list,
create_graph=False)
received_reward_from_rx = feedback_from_rx(out, label, Noise_feedback,
args.device)
loss_tx = transmitter_loss(actual_transmitted_symbol, tx_symb_mean,
received_reward_from_rx, args.relax_sigma)
joint_grad_tx = torch.autograd.grad(loss_tx,
init_tx_net_list,
create_graph=False,
retain_graph=True)
return joint_grad_rx, joint_grad_tx, float(loss_rx), float(loss_tx)
def one_frame_hybrid_training(args, h, Noise, Noise_relax, para_tx_net_list,
para_rx_net_list):
tx_meta_intermediate = meta_tx(if_relu=args.if_relu)
rx_meta_intermediate = meta_rx(if_relu=args.if_relu)
relax_sigma = args.relax_sigma
m, label = message_gen(
args.bit_num,
args.pilots_num_meta_train_query) # always send this amount
m = m.type(torch.FloatTensor).to(args.device)
label = label.type(torch.LongTensor).to(args.device)
#### we only transmit once and do meta-learning (rx) and joint learning (tx)
if args.fix_bpsk_tx:
actual_transmitted_symbol = four_qam_uncoded_modulation(
args.bit_num, args.channel_num, label) # label instead m
else:
# tx
tx_symb_mean, actual_transmitted_symbol = tx_meta_intermediate(
m, para_tx_net_list, args.if_bias, args.device, relax_sigma,
Noise_relax)
# channel
received_signal = channel(h, actual_transmitted_symbol, Noise, args.device,
args.if_AWGN)
###### change support num pilots here, transmission is only done once with mb_size_meta_test
num_pilots_for_meta_train_supp = args.pilots_num_meta_train_supp
# rx
for ind_sim_iter_rx in range(args.num_meta_local_updates):
if ind_sim_iter_rx == 0:
out = rx_meta_intermediate(
received_signal[0:num_pilots_for_meta_train_supp],
para_rx_net_list, args.if_bias, args.device, args.if_RTN)
loss_rx = receiver_loss(out,
label[0:num_pilots_for_meta_train_supp])
local_grad_rx = torch.autograd.grad(loss_rx,
para_rx_net_list,
create_graph=True)
intermediate_updated_para_list_rx = list(
map(lambda p: p[1] - args.lr_meta_inner * p[0],
zip(local_grad_rx, para_rx_net_list)))
first_loss_curr_rx = float(loss_rx.clone().detach())
else:
out = rx_meta_intermediate(
received_signal[0:num_pilots_for_meta_train_supp],
intermediate_updated_para_list_rx, args.if_bias, args.device,
args.if_RTN)
loss_rx = receiver_loss(out,
label[0:num_pilots_for_meta_train_supp])
local_grad_rx = torch.autograd.grad(
loss_rx, intermediate_updated_para_list_rx, create_graph=True)
intermediate_updated_para_list_rx = list(
map(lambda p: p[1] - args.lr_meta_inner * p[0],
zip(local_grad_rx, intermediate_updated_para_list_rx)))
### now meta-gradient
if args.separate_meta_training_support_query_set:
end_ind_for_supp = num_pilots_for_meta_train_supp
else: # use whole for query
end_ind_for_supp = 0
out = rx_meta_intermediate(received_signal[end_ind_for_supp:],
intermediate_updated_para_list_rx, args.if_bias,
args.device, args.if_RTN)
loss_rx_after_local_adaptation = receiver_loss(out,
label[end_ind_for_supp:])
meta_grad_rx = torch.autograd.grad(loss_rx_after_local_adaptation,
para_rx_net_list,
create_graph=False)
# use all transmission blocks in one frame for joint training of encoder
end_ind_for_supp = 0
if args.separate_meta_training_support_query_set: # we need to get out for whole messages
out = rx_meta_intermediate(received_signal,
intermediate_updated_para_list_rx,
args.if_bias, args.device, args.if_RTN)
else:
pass
if args.fix_bpsk_tx:
loss_tx = 0
joint_grad_tx = None
else:
# joint grad. for tx
received_reward_from_rx = feedback_from_rx(
out, label[end_ind_for_supp:]) # feedback with adapted rx
loss_tx = transmitter_loss(
actual_transmitted_symbol[end_ind_for_supp:],
tx_symb_mean[end_ind_for_supp:], received_reward_from_rx,
args.relax_sigma)
joint_grad_tx = torch.autograd.grad(loss_tx,
para_tx_net_list,
create_graph=False,
retain_graph=True)
return meta_grad_rx, joint_grad_tx, first_loss_curr_rx, float(
loss_tx), float(loss_rx_after_local_adaptation), float(loss_tx)
def one_iter_rx_meta_tx_joint_sim_fix_stoch_encoder(args, h, Noise,
Noise_relax,
Noise_feedback,
para_tx_net_list,
para_rx_net_list):
tx_meta_intermediate = meta_tx(if_relu=args.if_relu)
rx_meta_intermediate = meta_rx(if_relu=args.if_relu)
relax_sigma = args.relax_sigma
m, label = message_gen(args.bit_num, args.mb_size)
m = m.type(torch.FloatTensor).to(args.device)
label = label.type(torch.LongTensor).to(args.device)
#### we only transmit once and do meta-learning (rx) and joint learning (tx)
# tx
tx_symb_mean, actual_transmitted_symbol = tx_meta_intermediate(
m, para_tx_net_list, args.if_bias, args.device, relax_sigma,
Noise_relax)
# channel
received_signal = channel(h, actual_transmitted_symbol, Noise, args.device,
args.if_AWGN)
# rx
for ind_sim_iter_rx in range(args.num_meta_local_updates):
if ind_sim_iter_rx == 0:
out = rx_meta_intermediate(received_signal, para_rx_net_list,
args.if_bias, args.device, args.if_RTN)
loss_rx = receiver_loss(out, label)
local_grad_rx = torch.autograd.grad(loss_rx,
para_rx_net_list,
create_graph=True)
intermediate_updated_para_list_rx = list(
map(lambda p: p[1] - args.lr_meta_inner * p[0],
zip(local_grad_rx, para_rx_net_list)))
first_loss_curr_rx = float(loss_rx.clone().detach())
else:
out = rx_meta_intermediate(received_signal,
intermediate_updated_para_list_rx,
args.if_bias, args.device, args.if_RTN)
loss_rx = receiver_loss(out, label)
local_grad_rx = torch.autograd.grad(
loss_rx, intermediate_updated_para_list_rx, create_graph=True)
intermediate_updated_para_list_rx = list(
map(lambda p: p[1] - args.lr_meta_inner * p[0],
zip(local_grad_rx, intermediate_updated_para_list_rx)))
### now meta-gradient
out = rx_meta_intermediate(received_signal,
intermediate_updated_para_list_rx, args.if_bias,
args.device, args.if_RTN)
loss_rx_after_local_adaptation = receiver_loss(out, label)
meta_grad_rx = torch.autograd.grad(loss_rx_after_local_adaptation,
para_rx_net_list,
create_graph=False)
# joint grad. for tx
received_reward_from_rx = feedback_from_rx(
out, label, Noise_feedback, args.device) # feedback with adapted rx
loss_tx = transmitter_loss(actual_transmitted_symbol, tx_symb_mean,
received_reward_from_rx, args.relax_sigma)
joint_grad_tx = torch.autograd.grad(loss_tx,
para_tx_net_list,
create_graph=False,
retain_graph=True)
return meta_grad_rx, joint_grad_tx, first_loss_curr_rx, float(
loss_tx), float(loss_rx_after_local_adaptation), float(loss_tx)
def one_iter_sim_fix_stoch_encoder_from_rx_meta_tx_joint(
args, h, Noise, Noise_relax, Noise_feedback, tx_net_for_testtraining,
rx_net_for_testtraining, tx_testtraining_optimiser,
rx_testtraining_optimiser, epochs):
relax_sigma = args.relax_sigma
m, label = message_gen(args.bit_num, args.mb_size)
m = m.type(torch.FloatTensor).to(args.device)
label = label.type(torch.LongTensor).to(args.device)
tx_net_for_testtraining.zero_grad()
rx_net_for_testtraining.zero_grad()
# tx
tx_symb_mean, actual_transmitted_symbol = tx_net_for_testtraining(
m, args.device, relax_sigma, Noise_relax)
# channel
received_signal = channel(h, actual_transmitted_symbol, Noise, args.device,
args.if_AWGN)
# rx
out = rx_net_for_testtraining(received_signal, args.if_RTN, args.device)
loss_rx = receiver_loss(out, label)
loss_rx.backward()
if args.if_test_training_adam:
if args.if_adam_after_sgd:
if epochs < args.num_meta_local_updates:
for f in rx_net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.data * args.lr_meta_inner)
elif epochs == args.num_meta_local_updates:
rx_testtraining_optimiser = torch.optim.Adam(
rx_net_for_testtraining.parameters(), args.lr_testtraining)
rx_testtraining_optimiser.step()
else:
rx_testtraining_optimiser.step()
else:
rx_testtraining_optimiser.step()
else:
for f in rx_net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.detach() * args.lr_testtraining)
if args.fix_joint_trained_tx_only_adapt_meta_trained_rx:
tx_testtraining_optimiser = None
loss_tx = 0
else:
out = rx_net_for_testtraining(received_signal, args.if_RTN,
args.device)
received_reward_from_rx = feedback_from_rx(out, label, Noise_feedback,
args.device)
loss_tx = transmitter_loss(actual_transmitted_symbol, tx_symb_mean,
received_reward_from_rx, args.relax_sigma)
loss_tx.backward()
if args.if_test_training_adam:
if args.if_adam_after_sgd:
if epochs < args.num_meta_local_updates:
for f in tx_net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.data * args.lr_meta_inner)
elif epochs == args.num_meta_local_updates:
tx_testtraining_optimiser = torch.optim.Adam(
tx_net_for_testtraining.parameters(),
args.lr_testtraining)
tx_testtraining_optimiser.step()
else:
tx_testtraining_optimiser.step()
else:
tx_testtraining_optimiser.step()
else:
for f in tx_net_for_testtraining.parameters():
if f.grad is not None:
f.data.sub_(f.grad.detach() * args.lr_testtraining)
return rx_testtraining_optimiser, tx_testtraining_optimiser, float(
loss_rx), float(loss_tx)