def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [os.path.join(args.model_path, file_) for file_ in filenames]
else:
paths = [args.model_path]
# global TrajectoryGenerator, TrajectoryDiscriminator
# if args.D_type == 'rnn':
# print("Default Social GAN")
# from sgan.models import TrajectoryGenerator, TrajectoryDiscriminator
# # elif args.GAN_type == 'simple_rnn':
# # print("Default Social GAN")
# # from sgan.rnn_models import TrajectoryGenerator, TrajectoryDiscriminator
# else:
# print("Feedforward GAN")
# from sgan.ffd_models import TrajectoryGenerator, TrajectoryDiscriminator
for path in paths:
checkpoint = torch.load(path)
generator = get_generator(checkpoint, best=0)
_args = AttrDict(checkpoint['args'])
print(_args)
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
ade, fde = evaluate(_args, loader, generator, args.num_samples)
# result_str = '\n GAN_type: {}, Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f} \n'.format(
# _args.GAN_type, _args.dataset_name, _args.pred_len, ade, fde)
result_str = 'D_type: {}, Dataset: {}, Loss Weight: {:.2f} Pred Len: {}, ADE: {:.2f}, FDE: {:.2f} Samples: {} \n \n'.format(
args.D_type, _args.dataset_name, _args.l2_loss_weight,
_args.pred_len, ade, fde, args.num_samples)
print(result_str)
with open(args.dest, "a") as myfile:
myfile.write(result_str)
generator = get_generator(checkpoint, best=1)
_args = AttrDict(checkpoint['args'])
# print(_args)
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
ade, fde = evaluate(_args, loader, generator, args.num_samples)
# result_str = '\n GAN_type: {}, Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f} \n'.format(
# _args.GAN_type, _args.dataset_name, _args.pred_len, ade, fde)
result_str = 'BEST D_type: {}, Dataset: {}, Loss Weight: {:.2f} Pred Len: {}, ADE: {:.2f}, FDE: {:.2f} Samples: {} \n \n'.format(
args.D_type, _args.dataset_name, _args.l2_loss_weight,
_args.pred_len, ade, fde, args.num_samples)
print(result_str)
with open(args.dest, "a") as myfile:
myfile.write(result_str)
def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [
os.path.join(args.model_path, file_) for file_ in filenames
]
else:
paths = [args.model_path]
for path in paths:
checkpoint = torch.load(path)
generator = get_generator(checkpoint)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
ade, fde, trajs, times = evaluate(_args, loader, generator, args.num_samples)
print (times, np.mean(times))
print('Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f}'.format(
_args.dataset_name, _args.pred_len, ade, fde))
with open("trajs_dumped/" + _args.dataset_name + "_" + args.dset_type + "_trajs.pkl", 'wb') as f:
pickle.dump(trajs, f)
print ("trajs dumped at ", _args.dataset_name + "_" + args.dset_type + "_trajs.pkl")
def get_models():
fast_load = st.cache(torch.load, ignore_hash=True)
checkpoint_gen = fast_load(paths[1])
checkpoint_dis = fast_load(paths[0])
_args = dict([('clipping_threshold_d', 0), ('obs_len', 10),
('batch_norm', False), ('timing', 0),
('checkpoint_name', 'gan_test'),
('num_samples_check', 5000), ('mlp_dim', 64),
('use_gpu', 1), ('encoder_h_dim_d', 16),
('num_epochs', 900), ('restore_from_checkpoint', 1),
('g_learning_rate', 0.0005), ('pred_len', 20),
('neighborhood_size', 2.0), ('delim', 'tab'),
('d_learning_rate', 0.0002), ('d_steps', 2),
('pool_every_timestep', False),
('checkpoint_start_from', None), ('embedding_dim', 16),
('d_type', 'local'), ('grid_size', 8), ('dropout', 0.0),
('batch_size', 4), ('l2_loss_weight', 1.0),
('encoder_h_dim_g', 16), ('print_every', 10),
('best_k', 10), ('num_layers', 1), ('skip', 1),
('bottleneck_dim', 32), ('noise_type', 'gaussian'),
('clipping_threshold_g', 1.5), ('decoder_h_dim_g', 32),
('gpu_num', '0'), ('loader_num_workers', 4),
('pooling_type', 'pool_net'), ('noise_dim', (20, )),
('g_steps', 1), ('checkpoint_every', 50),
('noise_mix_type', 'global'), ('num_iterations', 80000)])
_args = AttrDict(_args)
generator = get_generator(_args, checkpoint_gen)
discriminator = get_discriminator(_args, checkpoint_dis)
data_path = get_dset_path(args.dataset_name, args.dset_type)
_, loader = data_loader(_args, data_path)
return _args, generator, discriminator, data_path, loader
def main(args):
path = args.model_path
path2 = args.model_path2
checkpoint = torch.load(path)
generator = get_generator(checkpoint)
checkpoint2 = torch.load(path2)
generator2 = get_generator2(checkpoint2)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
ade, fde, trajs, times = evaluate(_args, loader, generator, generator2,
args.num_samples)
print(times, np.mean(times))
print('Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f}'.format(
_args.dataset_name, _args.pred_len, ade, fde))
with open(
"trajs_dumped/" + _args.dataset_name + "_" + args.dset_type +
"_trajs.pkl", 'wb') as f:
pickle.dump(trajs, f)
print("trajs dumped at ",
_args.dataset_name + "_" + args.dset_type + "_trajs.pkl")
def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [os.path.join(args.model_path, file_) for file_ in filenames]
else:
paths = [args.model_path]
for path in paths:
# set model file
path = '/home/xiaotongfeng/Data/Pyhton/sgan-master/models/sgan-models/eth_12_model.pt'
print(path)
# load model
# checkpoint = torch.load(path)
checkpoint = torch.load(path,
map_location=lambda storage, loc: storage)
generator = get_generator(checkpoint) # generator
# get data set
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.dset_type)
dataset_path = '/home/yuanwang/Data/Pyhton/sgan-master/datasets/hotel/test'
print(dataset_path)
dset, loader = data_loader(_args, dataset_path)
# evaluate
_args.batch_size = 1
num_samples = 1
print(_args.batch_size)
ade, fde = evaluate(_args, loader, generator, num_samples)
print('Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f}'.format(
_args.dataset_name, _args.pred_len, ade, fde))
'''
def main():
data_dirs = ['eth', 'hotel', 'zara1', 'zara2', 'univ']
path_to_data_dirs = os.path.dirname(
os.path.dirname(get_dset_path("eth", "train")))
data_dirs = [path_to_data_dirs + "/" + data_dir for data_dir in data_dirs]
for x in data_dirs:
image_file = x + '/annotated.png'
obs_map = convert_to_obstacle_map(image_file)
f = open(x + '/obs_map.pkl', 'wb')
pickle.dump(obs_map, f, protocol=2)
f.close()
def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [os.path.join(args.model_path, file_) for file_ in filenames]
else:
paths = [args.model_path]
for path in paths:
checkpoint = torch.load(path)
generator = get_generator(checkpoint)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
evaluate(_args, loader, generator, args.num_samples)
def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [os.path.join(args.model_path, file_) for file_ in filenames]
else:
paths = [args.model_path]
for path in paths:
checkpoint = torch.load(path)
generator = get_generator(checkpoint)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
ade, fde = evaluate(_args, loader, generator, args.num_samples)
print('Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f}'.format(
_args.dataset_name, _args.pred_len, ade, fde))
def get_eth_gan_generator(load_mode="CUDA"):
"""
:return:
"""
model_path = "../../sgan/models/sgan-models/eth_12_model.pt"
if load_mode == "CUDA":
checkpoint = torch.load(model_path)
if load_mode == "CPU":
checkpoint = torch.load(model_path,
map_location=lambda storage, loc: storage)
global torch_mode
torch_mode = load_mode
generator = get_generator(checkpoint)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, 'test')
_, loader = data_loader(_args, path)
ade, fde = evaluate(_args, loader, generator, 20)
return generator
def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [os.path.join(args.model_path, file_) for file_ in filenames]
else:
paths = [args.model_path]
for path in paths:
checkpoint = torch.load(path)
generator = get_generator(checkpoint)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
ade, fde, count_left, count_mid, count_right = evaluate(
_args, loader, generator, args.num_samples)
print(path, '\n', 'ADE: {:.2f}, FDE: {:.2f}'.format(ade, fde))
print("count_left: ", count_left, " count_mid: ", count_mid,
" count_right: ", count_right)
def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [os.path.join(args.model_path, file_) for file_ in filenames]
else:
paths = [args.model_path]
for path in paths:
checkpoint = torch.load(path)
print("args for model_path", args.model_path, ":")
generator = get_generator(checkpoint)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
ade, fde = evaluate(_args, loader, generator, args.num_samples)
if "mtm" in args.model_path:
ade, fde = ade * 110.0, fde * 110.0 # converting from lat-lon to kms
print("ade and fde in kms")
print('Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f}'.format(
_args.dataset_name, _args.pred_len, ade, fde))
def main(args):
checkpoint = torch.load(args.pt_name+'.pt')
checkpoint_Gloss = checkpoint['G_losses']
checkpoint_Dloss = checkpoint['D_losses']
_args = AttrDict(checkpoint['args'])
generatorSO = get_generatorSO(checkpoint)
generatorST = get_generatorST(checkpoint)
discriminator = get_dicriminator(checkpoint)
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
batch_final = ()
for batch in loader:
batch = [tensor.cuda() for tensor in batch]
batch_final = batch
(obs_traj, pred_traj_gt, obs_traj_rel, pred_traj_gt_rel,
non_linear_ped, loss_mask, seq_start_end) = batch
#ipdb.set_trace()
noise_input, noise_shape = generatorSO(obs_traj, obs_traj_rel, seq_start_end)
z_noise = MALA_corrected_sampler(generatorST, discriminator, _args, noise_shape, noise_input, seq_start_end, obs_traj, obs_traj_rel)
decoder_h = torch.cat([noise_input, z_noise], dim=1)
decoder_h = torch.unsqueeze(decoder_h, 0)
generator_out = generatorST(decoder_h, seq_start_end, obs_traj, obs_traj_rel)
pred_traj_fake_rel = generator_out
pred_traj_fake = relative_to_abs(pred_traj_fake_rel, obs_traj[-1])
traj_fake = torch.cat([obs_traj, pred_traj_fake], dim=0)
traj_fake_rel = torch.cat([obs_traj_rel, pred_traj_fake_rel], dim=0)
scores_fake = discriminator(traj_fake, traj_fake_rel, seq_start_end)
plot_G_losses(args, checkpoint_Gloss)
plot_D_losses(args, checkpoint_Dloss)
plot_net_structure(args, generatorSO, generatorST, discriminator, obs_traj, obs_traj_rel, seq_start_end, decoder_h, traj_fake, traj_fake_rel)
def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [os.path.join(args.model_path, file_) for file_ in filenames]
else:
paths = [args.model_path]
for path in paths:
checkpoint = torch.load(path)
#TODO:gso&gst
generatorSO = get_generatorSO(checkpoint)
generatorST = get_generatorST(checkpoint)
discriminator = get_dicriminator(checkpoint)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.dset_type)
_, loader = data_loader(_args, path)
ade, fde, count_left, count_mid, count_right = evaluate(
_args, loader, generatorSO, generatorST, discriminator,
args.num_samples)
print('Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f}'.format(
_args.dataset_name, _args.pred_len, ade, fde))
print("count_left: ", count_left, "count_right: ", count_right)
def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [os.path.join(args.model_path, file_) for file_ in filenames]
else:
paths = [args.model_path]
for path in paths:
checkpoint = torch.load(path)
generator = get_generator(checkpoint)
_args = AttrDict(checkpoint['args'])
datapath = get_dset_path(
_args.dataset_name,
args.dset_type) # convert model path to dataset path
_, loader = data_loader(_args,
datapath,
shuffle=False,
phase='testing',
split=args.dset_type)
ade, fde = evaluate(_args, loader, generator, args.num_samples, path)
print('Dataset: {}, Pred Len: {}, ADE: {:.3f}, FDE: {:.3f}'.format(
_args.dataset_name, _args.pred_len * _args.skip, ade, fde))
def main(args):
if os.path.isdir(args.model_path):
file_ = os.listdir(args.model_path)
print(file_)
path = os.path.join(args.model_path, file_[0])
else:
path = args.model_path
checkpoint = torch.load(path)
_args = dict([('clipping_threshold_d',0), ('obs_len',10), ('batch_norm',False), ('timing',0),
('checkpoint_name','gan_test'), ('num_samples_check',5000), ('mlp_dim',64), ('use_gpu',1), ('encoder_h_dim_d',16),
('num_epochs',900), ('restore_from_checkpoint',1), ('g_learning_rate',0.0005), ('pred_len',20), ('neighborhood_size',2.0),
('delim','tab'), ('d_learning_rate',0.0002), ('d_steps',2), ('pool_every_timestep', False), ('checkpoint_start_from', None),
('embedding_dim',16), ('d_type','local'), ('grid_size',8), ('dropout',0.0), ('batch_size',4), ('l2_loss_weight',1.0),
('encoder_h_dim_g',16), ('print_every',10), ('best_k',10), ('num_layers',1), ('skip',1), ('bottleneck_dim',32), ('noise_type','gaussian'),
('clipping_threshold_g',1.5), ('decoder_h_dim_g',32), ('gpu_num','0'), ('loader_num_workers',4), ('pooling_type','pool_net'),
('noise_dim',(20,)),('g_steps',1), ('checkpoint_every',50), ('noise_mix_type','global'), ('num_iterations',80000)])
_args = AttrDict(_args)
generator = get_generator(_args,checkpoint)
data_path = get_dset_path(args.dataset_name, args.dset_type)
_, loader = data_loader(_args, data_path)
ade, fde = evaluate(_args, loader, generator, args.num_samples)
print('Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f}'.format(
args.dataset_name, _args.pred_len, ade, fde))
def main(args):
if os.path.isdir(args.model_path):
filenames = os.listdir(args.model_path)
filenames.sort()
paths = [os.path.join(args.model_path, file_) for file_ in filenames]
else:
paths = [args.model_path]
for path in paths:
checkpoint = torch.load(path)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.dset_type)
generator = get_generator(checkpoint, args_=args)
_, loader = data_loader(_args, path)
ade, fde, trajs = evaluate(_args, loader, generator)
print('Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f}'.format(
_args.dataset_name, _args.pred_len, ade, fde))
if _args.dataset_name.split("/")[0] == "split_moving":
path = "trajs_dumped/" + "/".join(
_args.dataset_name.split("/")[:-1])
pathlib.Path(path).mkdir(parents=True, exist_ok=True)
with open(
"trajs_dumped/" +
args.model_path.split("/")[-1].split(".")[0] + "_" +
args.dset_type + "_trajs.pkl", 'wb+') as f:
pickle.dump(trajs, f)
print(
"trajs dumped at ",
args.model_path.split("/")[-1].split(".")[0] + "_" +
args.dset_type + "_trajs.pkl")
return ade.item(), fde.item()
def extract_our_and_sgan_preds(dataset_name, hyperparams, args, data_precondition='all'):
print('At %s dataset' % dataset_name)
### SGAN LOADING ###
sgan_model_path = os.path.join(args.sgan_models_path, '_'.join([dataset_name, '12', 'model.pt']))
checkpoint = torch.load(sgan_model_path, map_location='cpu')
generator = get_generator(checkpoint)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.sgan_dset_type)
print('Evaluating', sgan_model_path, 'on', _args.dataset_name, args.sgan_dset_type)
_, sgan_data_loader = data_loader(_args, path)
### OUR METHOD LOADING ###
data_dir = '../sgan-dataset/data'
eval_data_dict_name = '%s_test.pkl' % dataset_name
log_dir = '../sgan-dataset/logs/%s' % dataset_name
have_our_model = False
if os.path.isdir(log_dir):
have_our_model = True
trained_model_dir = os.path.join(log_dir, get_our_model_dir(dataset_name))
eval_data_path = os.path.join(data_dir, eval_data_dict_name)
with open(eval_data_path, 'rb') as f:
eval_data_dict = pickle.load(f, encoding='latin1')
eval_dt = eval_data_dict['dt']
print('Loaded evaluation data from %s, eval_dt = %.2f' % (eval_data_path, eval_dt))
# Loading weights from the trained model.
specific_hyperparams = get_model_hyperparams(args, dataset_name)
model_registrar = ModelRegistrar(trained_model_dir, args.device)
model_registrar.load_models(specific_hyperparams['best_iter'])
for key in eval_data_dict['input_dict'].keys():
if isinstance(key, STGNode):
random_node = key
break
hyperparams['state_dim'] = eval_data_dict['input_dict'][random_node].shape[2]
hyperparams['pred_dim'] = len(eval_data_dict['pred_indices'])
hyperparams['pred_indices'] = eval_data_dict['pred_indices']
hyperparams['dynamic_edges'] = args.dynamic_edges
hyperparams['edge_state_combine_method'] = specific_hyperparams['edge_state_combine_method']
hyperparams['edge_influence_combine_method'] = specific_hyperparams['edge_influence_combine_method']
hyperparams['nodes_standardization'] = eval_data_dict['nodes_standardization']
hyperparams['labels_standardization'] = eval_data_dict['labels_standardization']
hyperparams['edge_radius'] = args.edge_radius
eval_hyperparams = copy.deepcopy(hyperparams)
eval_hyperparams['nodes_standardization'] = eval_data_dict["nodes_standardization"]
eval_hyperparams['labels_standardization'] = eval_data_dict["labels_standardization"]
kwargs_dict = {'dynamic_edges': hyperparams['dynamic_edges'],
'edge_state_combine_method': hyperparams['edge_state_combine_method'],
'edge_influence_combine_method': hyperparams['edge_influence_combine_method']}
print('-------------------------')
print('| EVALUATION PARAMETERS |')
print('-------------------------')
print('| checking: %s' % data_precondition)
print('| device: %s' % args.device)
print('| eval_device: %s' % args.eval_device)
print('| edge_radius: %s' % hyperparams['edge_radius'])
print('| EE state_combine_method: %s' % hyperparams['edge_state_combine_method'])
print('| EIE scheme: %s' % hyperparams['edge_influence_combine_method'])
print('| dynamic_edges: %s' % hyperparams['dynamic_edges'])
print('| edge_addition_filter: %s' % args.edge_addition_filter)
print('| edge_removal_filter: %s' % args.edge_removal_filter)
print('| MHL: %s' % hyperparams['minimum_history_length'])
print('| PH: %s' % hyperparams['prediction_horizon'])
print('| # Samples: %s' % args.num_samples)
print('| # Runs: %s' % args.num_runs)
print('-------------------------')
# It is important that eval_stg uses the same model_registrar as
# the stg being trained, otherwise you're just repeatedly evaluating
# randomly-initialized weights!
eval_stg = SpatioTemporalGraphCVAEModel(None, model_registrar,
eval_hyperparams, kwargs_dict,
None, args.eval_device)
print('Created evaluation STG model.')
eval_agg_scene_graph = create_batch_scene_graph(eval_data_dict['input_dict'],
float(hyperparams['edge_radius']),
use_old_method=(args.dynamic_edges=='no'))
print('Created aggregate evaluation scene graph.')
if args.dynamic_edges == 'yes':
eval_agg_scene_graph.compute_edge_scaling(args.edge_addition_filter, args.edge_removal_filter)
eval_data_dict['input_dict']['edge_scaling_mask'] = eval_agg_scene_graph.edge_scaling_mask
print('Computed edge scaling for the evaluation scene graph.')
eval_stg.set_scene_graph(eval_agg_scene_graph)
print('Set the aggregate scene graph.')
eval_stg.set_annealing_params()
print('About to begin evaluation computation for %s.' % dataset_name)
with torch.no_grad():
eval_inputs, _ = sample_inputs_and_labels(eval_data_dict, device=args.eval_device)
sgan_preds_list = list()
sgan_gt_list = list()
our_preds_list = list()
our_preds_most_likely_list = list()
(obs_traj, pred_traj_gt, obs_traj_rel,
seq_start_end, data_ids, t_predicts) = get_sgan_data_format(eval_inputs, what_to_check=data_precondition)
num_runs = args.num_runs
print('num_runs, seq_start_end.shape[0]', args.num_runs, seq_start_end.shape[0])
if args.num_runs > seq_start_end.shape[0]:
print('num_runs (%d) > seq_start_end.shape[0] (%d), reducing num_runs to match.' % (num_runs, seq_start_end.shape[0]))
num_runs = seq_start_end.shape[0]
samples_list = list()
for _ in range(args.num_samples):
pred_traj_fake_rel = generator(
obs_traj, obs_traj_rel, seq_start_end
)
pred_traj_fake = relative_to_abs(
pred_traj_fake_rel, obs_traj[-1]
)
samples_list.append(pred_traj_fake)
random_scene_idxs = np.random.choice(seq_start_end.shape[0],
size=(num_runs,),
replace=False).astype(int)
sgan_history = defaultdict(dict)
for run in range(num_runs):
random_scene_idx = random_scene_idxs[run]
seq_idx_range = seq_start_end[random_scene_idx]
agent_preds = dict()
agent_gt = dict()
for seq_agent in range(seq_idx_range[0], seq_idx_range[1]):
agent_preds[seq_agent] = torch.stack([x[:, seq_agent] for x in samples_list], dim=0)
agent_gt[seq_agent] = torch.unsqueeze(pred_traj_gt[:, seq_agent], dim=0)
sgan_history[run][seq_agent] = obs_traj[:, seq_agent]
sgan_preds_list.append(agent_preds)
sgan_gt_list.append(agent_gt)
print('Done running SGAN')
if have_our_model:
sgan_our_agent_map = dict()
our_sgan_agent_map = dict()
for run in range(num_runs):
print('At our run number', run)
random_scene_idx = random_scene_idxs[run]
data_id = data_ids[random_scene_idx]
t_predict = t_predicts[random_scene_idx] - 1
curr_inputs = {k: v[[data_id]] for k, v in eval_inputs.items()}
curr_inputs['traj_lengths'] = torch.tensor([t_predict])
with torch.no_grad():
preds_dict_most_likely = eval_stg.predict(curr_inputs, hyperparams['prediction_horizon'], args.num_samples, most_likely=True)
preds_dict_full = eval_stg.predict(curr_inputs, hyperparams['prediction_horizon'], args.num_samples, most_likely=False)
our_preds_most_likely_list.append(preds_dict_most_likely)
our_preds_list.append(preds_dict_full)
for node, value in curr_inputs.items():
if isinstance(node, STGNode) and np.any(value[0, t_predict]):
curr_prev = value[0, t_predict+1-8 : t_predict+1]
for seq_agent, sgan_val in sgan_history[run].items():
if torch.norm(curr_prev[:, :2] - sgan_val) < 1e-4:
sgan_our_agent_map['%d/%d' % (run, seq_agent)] = node
our_sgan_agent_map['%d/%s' % (run, str(node))] = '%d/%d' % (run, seq_agent)
print('Done running Our Method')
# Pruning values that aren't in either.
for run in range(num_runs):
agent_preds = sgan_preds_list[run]
agent_gt = sgan_gt_list[run]
new_agent_preds = dict()
new_agent_gts = dict()
for agent in agent_preds.keys():
run_agent_key = '%d/%d' % (run, agent)
if run_agent_key in sgan_our_agent_map:
new_agent_preds[sgan_our_agent_map[run_agent_key]] = agent_preds[agent]
new_agent_gts[sgan_our_agent_map[run_agent_key]] = agent_gt[agent]
sgan_preds_list[run] = new_agent_preds
sgan_gt_list[run] = new_agent_gts
for run in range(num_runs):
agent_preds_ml = our_preds_most_likely_list[run]
agent_preds_full = our_preds_list[run]
new_agent_preds = dict()
new_agent_preds_full = dict()
for node in [x for x in agent_preds_ml.keys() if x.endswith('/y')]:
node_key_list = node.split('/')
node_obj = STGNode(node_key_list[1], node_key_list[0])
node_obj_key = '%d/%s' % (run, str(node_obj))
if node_obj_key in our_sgan_agent_map:
new_agent_preds[node_obj] = agent_preds_ml[node]
new_agent_preds_full[node_obj] = agent_preds_full[node]
our_preds_most_likely_list[run] = new_agent_preds
our_preds_list[run] = new_agent_preds_full
# Guaranteeing the number of agents are the same.
for run in range(num_runs):
assert list_compare(our_preds_most_likely_list[run].keys(), sgan_preds_list[run].keys())
assert list_compare(our_preds_list[run].keys(), sgan_preds_list[run].keys())
assert list_compare(our_preds_most_likely_list[run].keys(), our_preds_list[run].keys())
assert list_compare(sgan_preds_list[run].keys(), sgan_gt_list[run].keys())
return (our_preds_most_likely_list, our_preds_list,
sgan_preds_list, sgan_gt_list, eval_inputs, eval_data_dict,
data_ids, t_predicts, random_scene_idxs, num_runs)
def main(evalArgs):
if os.path.isdir(evalArgs.model_path):
filenames = os.listdir(evalArgs.model_path)
filenames.sort()
paths = [
os.path.join(evalArgs.model_path, file_) for file_ in filenames
]
else:
paths = [evalArgs.model_path]
totalNumOfPedestrians = 0
ADE8, FDE8, ADE12, FDE12 = {}, {}, {}, {}
for path in paths:
print('\nStarting with evaluation of model:', path)
if evalArgs.use_gpu:
checkpoint = torch.load(path)
else:
checkpoint = torch.load(path, map_location='cpu')
generator = get_generator(checkpoint, evalArgs)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, evalArgs.dset_type)
_, loader = data_loader(_args, path)
# Compute collision statistics for multiple thresholds
#collisionThresholds = [0.05, 0.1, 0.2, 0.3, 0.5, 0.7, 1, 2]
collisionThresholds = [0.1]
for currCollisionThreshold in collisionThresholds:
ade, fde, testSetStatistics, poolingStatistics, collisionStatistics = evaluate(
_args, loader, generator, evalArgs.num_samples,
currCollisionThreshold)
print('Dataset: {}, Pred Len: {}, ADE: {:.2f}, FDE: {:.2f}'.format(
_args.dataset_name, _args.pred_len, ade, fde))
print('Collisions for threshold:', currCollisionThreshold)
if (_args.pred_len == 8):
ADE8[_args.dataset_name] = ade
FDE8[_args.dataset_name] = fde
elif (_args.pred_len == 12):
ADE12[_args.dataset_name] = ade
FDE12[_args.dataset_name] = fde
else:
print('Error while storing the evaluation result!')
# name of directory to store the figures
dirName = 'barCharts'
if (evalArgs.showStatistics == 1):
print('Test set statistics:', testSetStatistics)
currNumOfScenes, pedestriansPerScene, currNumOfBatches = next(
iter(testSetStatistics.values()))
plt.clf()
plt.bar(list(pedestriansPerScene.keys()),
pedestriansPerScene.values(),
color='g')
plt.xlabel('Number of pedestrians')
plt.ylabel('Number of situations')
plt.xticks(range(max(pedestriansPerScene.keys()) + 2))
plt.title('Dataset: {}, Pred Len: {}'.format(
_args.dataset_name, _args.pred_len))
plt.savefig(dirName +
'/howCrowded_Dataset_{}_PredictionLen_{}.png'.format(
_args.dataset_name, _args.pred_len))
#plt.show()
totalNumOfPedestrians += sum(
k * v for k, v in pedestriansPerScene.items())
if _args.pooling_type.lower() != 'none':
print('Pooling vector statistics:', poolingStatistics)
includedPedestrians, includedOtherPedestrians, includedSelf, ratioChosenAndClosest = poolingStatistics
plt.clf()
# histogram: x axis is % of included pedestrians, y axis is number of pooling vectors with that %
plt.bar(list(includedPedestrians.keys()),
includedPedestrians.values(),
color='g',
width=0.02)
plt.xlabel('% of included pedestrians')
plt.ylabel('Number of pooling vectors')
plt.title('Dataset: {}, Pred Len: {}'.format(
_args.dataset_name, _args.pred_len))
plt.savefig(dirName +
'/percentIncluded_Dataset_{}_PredLen_{}.png'.
format(_args.dataset_name, _args.pred_len))
#plt.show()
plt.clf()
plt.bar(list(includedOtherPedestrians.keys()),
includedOtherPedestrians.values(),
color='g',
width=0.02)
plt.xlabel('% of included pedestrians (no self inclusions)')
plt.ylabel('Number of pooling vectors')
plt.title('Dataset: {}, Pred Len: {}'.format(
_args.dataset_name, _args.pred_len))
plt.savefig(dirName +
'/percentIncludedOther_Dataset_{}_PredLen_{}.png'.
format(_args.dataset_name, _args.pred_len))
#plt.show()
plt.clf()
plt.bar(list(includedSelf.keys()),
includedSelf.values(),
color='g',
width=0.02)
plt.xlabel('% of self inclusions')
plt.ylabel('Number of pooling vectors')
plt.title('Dataset: {}, Pred Len: {}'.format(
_args.dataset_name, _args.pred_len))
plt.savefig(dirName +
'/percentSelfInclusions_Dataset_{}_PredLen_{}.png'.
format(_args.dataset_name, _args.pred_len))
#plt.show()
plt.clf()
plt.bar(list(ratioChosenAndClosest.keys()),
ratioChosenAndClosest.values(),
color='g',
width=0.02)
plt.xlabel('Distance ratio between chosen and closest')
plt.ylabel('Number of pooling vector values with that ratio')
plt.title('Dataset: {}, Pred Len: {}'.format(
_args.dataset_name, _args.pred_len))
plt.savefig(dirName +
'/chosenClosestRatio_Dataset_{}_PredLen_{}.png'.
format(_args.dataset_name, _args.pred_len))
#plt.show()
# same as ratio dict, just sums up y values starting from x = 1
massRatioChosenAndClosest = collections.OrderedDict()
massRatioChosenAndClosest[-1] = ratioChosenAndClosest[-1]
acc = 0
for currKey, currValue in sorted(
ratioChosenAndClosest.items())[1:]:
acc += currValue
massRatioChosenAndClosest[currKey] = acc
plt.clf()
# Interpretation: for a x value, how many pooling vector values come from pedestrians that are at most x times farther away than the closest pedestrian
plt.bar(list(massRatioChosenAndClosest.keys()),
massRatioChosenAndClosest.values(),
color='g',
width=0.02)
plt.xlabel('Distance ratio between chosen and closest')
plt.ylabel(
'Pooling values with that ratio (sum from x=1 onwards)')
plt.title('Dataset: {}, Pred Len: {}'.format(
_args.dataset_name, _args.pred_len))
plt.savefig(dirName +
'/massChosenClosestRatio_Dataset_{}_PredLen_{}.png'
.format(_args.dataset_name, _args.pred_len))
#plt.show()
numOfCollisions, totalNumOfSituations, collisionSituations = next(
iter(collisionStatistics.values()))
print(
'Total number of frames with collisions (all situations, all samples):',
numOfCollisions)
print(
'Total number of situations (all samples, with and without collisions):',
totalNumOfSituations)
print(
'Total number of situations with collisions (all samples): {}, that\'s {:.1%}'
.format(len(collisionSituations),
len(collisionSituations) / totalNumOfSituations))
# loops through and visualizes all situations for which a collision has been detected
#for currSituation in collisionSituations:
#obs_traj, pred_traj_fake, pred_traj_gt = currSituation
#visualizeSituation(obs_traj, pred_traj_fake, pred_traj_gt)
print('\n \n')
destination = 'evalResults/ERROR/SETNAMEFOREVALUATIONMANUALLYHERE.pkl'
with open(destination, 'wb') as f:
pickle.dump((ADE8, FDE8, ADE12, FDE12), f)
print('Evaluation is done.')
def main(args):
os.environ["CUDA_VISIBLE_DEVICES"] = args.gpu_num
train_path = get_dset_path(args.dataset_name, 'train')
val_path = get_dset_path(args.dataset_name, 'val')
long_dtype, float_dtype = get_dtypes(args)
logger.info("Initializing train dataset")
# train_dset: TrajectoryDataset为我们准备好了所有的数据集
# train_loader: 用于一批一批加载数据
train_dset, train_loader = data_loader(args, train_path)
# print("train_dset.__len__():", train_dset.__len__())
logger.info("Initializing val dataset")
_, val_loader = data_loader(args, val_path)
# args.batch_size = 64
# args.d_steps = 2
iterations_per_epoch = len(train_dset) / args.batch_size / args.d_steps
# args.num_epochs = 200
if args.num_epochs:
args.num_iterations = int(iterations_per_epoch * args.num_epochs)
logger.info('There are {} iterations per epoch'.format(iterations_per_epoch))
# generator network
generator = TrajectoryGenerator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
encoder_h_dim=args.encoder_h_dim_g,
decoder_h_dim=args.decoder_h_dim_g,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
noise_dim=args.noise_dim,
noise_type=args.noise_type,
noise_mix_type=args.noise_mix_type,
pooling_type=args.pooling_type,
pool_every_timestep=args.pool_every_timestep,
dropout=args.dropout,
bottleneck_dim=args.bottleneck_dim,
neighborhood_size=args.neighborhood_size,
grid_size=args.grid_size,
batch_norm=args.batch_norm)
generator.apply(init_weights)
generator.type(float_dtype).train()
logger.info('Here is the generator:')
logger.info(generator)
# discriminator network
discriminator = TrajectoryDiscriminator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
h_dim=args.encoder_h_dim_d,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
dropout=args.dropout,
batch_norm=args.batch_norm,
d_type=args.d_type)
discriminator.apply(init_weights)
discriminator.type(float_dtype).train()
logger.info('Here is the discriminator:')
logger.info(discriminator)
# loss function from "losses.py"
g_loss_fn = gan_g_loss
d_loss_fn = gan_d_loss
# optimizer function
optimizer_g = optim.Adam(generator.parameters(), lr=args.g_learning_rate)
optimizer_d = optim.Adam(discriminator.parameters(), lr=args.d_learning_rate)
# Maybe restore from checkpoint
restore_path = None
if args.checkpoint_start_from is not None:
restore_path = args.checkpoint_start_from
elif args.restore_from_checkpoint == 1:
restore_path = os.path.join(args.output_dir, '%s_with_model.pt' % args.checkpoint_name)
if restore_path is not None and os.path.isfile(restore_path):
logger.info('Restoring from checkpoint {}'.format(restore_path))
checkpoint = torch.load(restore_path)
generator.load_state_dict(checkpoint['g_state'])
discriminator.load_state_dict(checkpoint['d_state'])
optimizer_g.load_state_dict(checkpoint['g_optim_state'])
optimizer_d.load_state_dict(checkpoint['d_optim_state'])
t = checkpoint['counters']['t']
epoch = checkpoint['counters']['epoch']
checkpoint['restore_ts'].append(t)
else:
# Starting from scratch, so initialize checkpoint data structure
t, epoch = 0, 0
checkpoint = {
'args': args.__dict__,
'G_losses': defaultdict(list),
'D_losses': defaultdict(list),
'losses_ts': [],
'metrics_val': defaultdict(list),
'metrics_train': defaultdict(list),
'sample_ts': [],
'restore_ts': [],
'norm_g': [],
'norm_d': [],
'counters': {
't': None,
'epoch': None,
},
'g_state': None,
'g_optim_state': None,
'd_state': None,
'd_optim_state': None,
'g_best_state': None,
'd_best_state': None,
'best_t': None,
'g_best_nl_state': None,
'd_best_state_nl': None,
'best_t_nl': None,
}
t0 = None
while t < args.num_iterations:
gc.collect()
d_steps_left = args.d_steps # args.d_steps = 2 discriminator steps
g_steps_left = args.g_steps # args.g_steps = 1 generator steps
epoch += 1
logger.info('Starting epoch {}'.format(epoch))
for batch in train_loader: # 循环调用DataLoader对象，将数据一批一批的加载到模型进行训练
# print("batch:", batch)
# (obs_traj, pred_traj_gt, obs_traj_rel, pred_traj_gt_rel, obs_traj_rel_v, pred_traj_rel_v, obs_traj_g, pred_traj_g,
# non_linear_ped, loss_mask, seq_start_end) = batch
# print("obs_traj:", obs_traj.shape)
# print("pred_traj_gt:", pred_traj_gt.shape)
# print("obs_traj_rel:", obs_traj_rel.shape)
# print("pred_traj_gt_rel:", pred_traj_gt_rel.shape)
# print("obs_traj_rel_v:", obs_traj_rel_v.shape)
# print("pred_traj_rel_v:", pred_traj_rel_v.shape)
# print("obs_traj_g:", obs_traj_g.shape)
# print("pred_traj_g:", pred_traj_g.shape)
# print("non_linear_ped:", non_linear_ped.shape)
# print("loss_mask:", loss_mask.shape)
# (obs_traj, pred_traj_gt, obs_traj_rel, pred_traj_gt_rel, non_linear_ped, loss_mask, seq_start_end) = batch
# print("obs_traj:", obs_traj.shape)
# print("pred_traj_gt:", pred_traj_gt.shape)
# print("obs_traj_rel:", obs_traj_rel.shape)
# print("pred_traj_gt_rel:", pred_traj_gt_rel.shape)
# print("non_linear_ped:", non_linear_ped.shape)
# print("loss_mask:", loss_mask.shape)
if args.timing == 1:
torch.cuda.synchronize()
t1 = time.time()
# Decide whether to use the batch for stepping on discriminator or
# generator; an iteration consists of args.d_steps steps on the
# discriminator followed by args.g_steps steps on the generator.
if d_steps_left > 0:
# 判别器
step_type = 'd'
losses_d = discriminator_step(args, batch, generator, discriminator, d_loss_fn, optimizer_d)
checkpoint['norm_d'].append(get_total_norm(discriminator.parameters()))
d_steps_left -= 1
elif g_steps_left > 0:
# 生成器
step_type = 'g'
losses_g = generator_step(args, batch, generator, discriminator, g_loss_fn, optimizer_g)
checkpoint['norm_g'].append(get_total_norm(generator.parameters()))
g_steps_left -= 1
if args.timing == 1:
torch.cuda.synchronize()
t2 = time.time()
logger.info('{} step took {}'.format(step_type, t2 - t1))
# Skip the rest if we are not at the end of an iteration
if d_steps_left > 0 or g_steps_left > 0:
continue
if args.timing == 1:
if t0 is not None:
logger.info('Interation {} took {}'.format(t - 1, time.time() - t0))
t0 = time.time()
# Maybe save loss
if t % args.print_every == 0:
logger.info('t = {} / {}'.format(t + 1, args.num_iterations))
for k, v in sorted(losses_d.items()):
logger.info(' [D] {}: {:.3f}'.format(k, v))
checkpoint['D_losses'][k].append(v)
for k, v in sorted(losses_g.items()):
logger.info(' [G] {}: {:.3f}'.format(k, v))
checkpoint['G_losses'][k].append(v)
checkpoint['losses_ts'].append(t)
# Maybe save a checkpoint
if t > 0 and t % args.checkpoint_every == 0:
checkpoint['counters']['t'] = t
checkpoint['counters']['epoch'] = epoch
checkpoint['sample_ts'].append(t)
# Check stats on the validation set
logger.info('Checking stats on val ...')
metrics_val = check_accuracy(args, val_loader, generator, discriminator, d_loss_fn)
logger.info('Checking stats on train ...')
metrics_train = check_accuracy(args, train_loader, generator, discriminator, d_loss_fn, limit=True)
for k, v in sorted(metrics_val.items()):
logger.info(' [val] {}: {:.3f}'.format(k, v))
checkpoint['metrics_val'][k].append(v)
for k, v in sorted(metrics_train.items()):
logger.info(' [train] {}: {:.3f}'.format(k, v))
checkpoint['metrics_train'][k].append(v)
min_ade = min(checkpoint['metrics_val']['ade'])
min_ade_nl = min(checkpoint['metrics_val']['ade_nl'])
if metrics_val['ade'] == min_ade:
logger.info('New low for avg_disp_error')
checkpoint['best_t'] = t
checkpoint['g_best_state'] = generator.state_dict()
checkpoint['d_best_state'] = discriminator.state_dict()
if metrics_val['ade_nl'] == min_ade_nl:
logger.info('New low for avg_disp_error_nl')
checkpoint['best_t_nl'] = t
checkpoint['g_best_nl_state'] = generator.state_dict()
checkpoint['d_best_nl_state'] = discriminator.state_dict()
# Save another checkpoint with model weights and
# optimizer state
checkpoint['g_state'] = generator.state_dict()
checkpoint['g_optim_state'] = optimizer_g.state_dict()
checkpoint['d_state'] = discriminator.state_dict()
checkpoint['d_optim_state'] = optimizer_d.state_dict()
checkpoint_path = os.path.join(args.output_dir, '%s_with_model.pt' % args.checkpoint_name)
logger.info('Saving checkpoint to {}'.format(checkpoint_path))
torch.save(checkpoint, checkpoint_path)
logger.info('Done.')
# Save a checkpoint with no model weights by making a shallow
# copy of the checkpoint excluding some items
checkpoint_path = os.path.join(
args.output_dir, '%s_no_model.pt' % args.checkpoint_name)
logger.info('Saving checkpoint to {}'.format(checkpoint_path))
key_blacklist = [
'g_state', 'd_state', 'g_best_state', 'g_best_nl_state',
'g_optim_state', 'd_optim_state', 'd_best_state',
'd_best_nl_state'
]
small_checkpoint = {}
for k, v in checkpoint.items():
if k not in key_blacklist:
small_checkpoint[k] = v
torch.save(small_checkpoint, checkpoint_path)
logger.info('Done.')
t += 1
d_steps_left = args.d_steps
g_steps_left = args.g_steps
if t >= args.num_iterations:
break
def main(args):
os.environ["CUDA_VISIBLE_DEVICES"] = args.gpu_num
train_path = get_dset_path(args.dataset_name, 'train')
val_path = get_dset_path(args.dataset_name, 'val')
long_dtype, float_dtype = get_dtypes(args)
logger.info("Initializing train dataset")
train_dset, train_loader = data_loader(args, train_path)
logger.info("Initializing val dataset")
_, val_loader = data_loader(args, val_path)
iterations_per_epoch = len(train_dset) / args.batch_size / args.d_steps
if args.num_epochs:
args.num_iterations = int(iterations_per_epoch * args.num_epochs)
logger.info(
'There are {} iterations per epoch'.format(iterations_per_epoch)
)
generatorSO = TrajectoryGeneratorSO(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
encoder_h_dim=args.encoder_h_dim_g,
decoder_h_dim=args.decoder_h_dim_g,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
noise_dim=args.noise_dim,
noise_type=args.noise_type,
noise_mix_type=args.noise_mix_type,
pooling_type=args.pooling_type,
pool_every_timestep=args.pool_every_timestep,
dropout=args.dropout,
bottleneck_dim=args.bottleneck_dim,
neighborhood_size=args.neighborhood_size,
grid_size=args.grid_size,
batch_norm=args.batch_norm)
generatorSO.apply(init_weights)
generatorSO.type(float_dtype).train()
logger.info('Here is the generatorSO:')
logger.info(generatorSO)
#TODO:generator step two
generatorST = TrajectoryGeneratorST(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
encoder_h_dim=args.encoder_h_dim_g,
decoder_h_dim=args.decoder_h_dim_g,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
noise_dim=args.noise_dim,
noise_type=args.noise_type,
noise_mix_type=args.noise_mix_type,
pooling_type=args.pooling_type,
pool_every_timestep=args.pool_every_timestep,
dropout=args.dropout,
bottleneck_dim=args.bottleneck_dim,
neighborhood_size=args.neighborhood_size,
grid_size=args.grid_size,
batch_norm=args.batch_norm)
generatorST.apply(init_weights)
generatorST.type(float_dtype).train()
logger.info('Here is the generatorST:')
logger.info(generatorST)
discriminator = TrajectoryDiscriminator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
h_dim=args.encoder_h_dim_d,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
dropout=args.dropout,
batch_norm=args.batch_norm,
d_type=args.d_type)
discriminator.apply(init_weights)
discriminator.type(float_dtype).train()
logger.info('Here is the discriminator:')
logger.info(discriminator)
netH = StatisticsNetwork(z_dim = 2*args.noise_dim[0] + 4*args.pred_len, dim=512)
netH.apply(init_weights)
netH.type(float_dtype).train()
logger.info('Here is the netH:')
logger.info(netH)
g_loss_fn = gan_g_loss
d_loss_fn = gan_d_loss
optimizer_gso = optim.Adam(generatorSO.parameters(), lr=args.g_learning_rate)
optimizer_gst = optim.Adam(generatorST.parameters(), lr=args.g_learning_rate)
optimizer_d = optim.Adam(discriminator.parameters(), lr=args.d_learning_rate)
optimizer_h = optim.Adam(netH.parameters(), lr=args.h_learning_rate)
restore_path = None
if args.checkpoint_start_from is not None:
restore_path = args.checkpoint_start_from
elif args.restore_from_checkpoint == 1:
restore_path = os.path.join(args.output_dir,
'%s_with_model.pt' % args.checkpoint_name)
if restore_path is not None and os.path.isfile(restore_path):
logger.info('Restoring from checkpoint {}'.format(restore_path))
checkpoint = torch.load(restore_path)
generatorSO.load_state_dict(checkpoint['gso_state'])
generatorST.load_state_dict(checkpoint['gst_state'])
discriminator.load_state_dict(checkpoint['d_state'])
#TODO:gso&gst
optimizer_gso.load_state_dict(checkpoint['gso_optim_state'])
optimizer_gst.load_state_dict(checkpoint['gst_optim_state'])
optimizer_d.load_state_dict(checkpoint['d_optim_state'])
t = checkpoint['counters']['t']
epoch = checkpoint['counters']['epoch']
checkpoint['restore_ts'].append(t)
else:
t, epoch = 0, 0
checkpoint = {
'args': args.__dict__,
'G_losses': defaultdict(list),
'D_losses': defaultdict(list),
'losses_ts': [],
'metrics_val': defaultdict(list),
'metrics_train': defaultdict(list),
'sample_ts': [],
'restore_ts': [],
'norm_gso': [],
'norm_gst': [],
'norm_d': [],
'counters': {
't': None,
'epoch': None,
},
#TODO:gso&gst
'gso_state': None,
'gst_state': None,
'gso_optim_state': None,
'gst_optim_state': None,
'd_state': None,
'd_optim_state': None,
'gso_best_state': None,
'gst_best_state': None,
'd_best_state': None,
'best_t': None,
'gso_best_nl_state': None,
'gst_best_nl_state': None,
'd_best_state_nl': None,
'best_t_nl': None,
}
t0 = None
while t < args.num_iterations:
gc.collect()
d_steps_left = args.d_steps
g_steps_left = args.g_steps
epoch += 1
logger.info('Starting epoch {}'.format(epoch))
for batch in train_loader:
if args.timing == 1:
torch.cuda.synchronize()
t1 = time.time().
if d_steps_left > 0:
step_type = 'd'
losses_d = discriminator_step(args, batch, generatorSO, generatorST,
discriminator, d_loss_fn,
optimizer_d)
checkpoint['norm_d'].append(
get_total_norm(discriminator.parameters()))
d_steps_left -= 1
elif g_steps_left > 0:
step_type = 'g'
losses_g = generator_step(args, batch, generatorSO, generatorST,
discriminator, netH, g_loss_fn,
optimizer_gso, optimizer_gst, optimizer_h)
checkpoint['norm_gso'].append(
get_total_norm(generatorSO.parameters())
)
checkpoint['norm_gst'].append(
get_total_norm(generatorST.parameters())
)
g_steps_left -= 1
if args.timing == 1:
torch.cuda.synchronize()
t2 = time.time()
logger.info('{} step took {}'.format(step_type, t2 - t1))
if d_steps_left > 0 or g_steps_left > 0:
continue
if args.timing == 1:
if t0 is not None:
logger.info('Interation {} took {}'.format(
t - 1, time.time() - t0
))
t0 = time.time()
if t % args.print_every == 0:
logger.info('t = {} / {}'.format(t + 1, args.num_iterations))
for k, v in sorted(losses_d.items()):
logger.info(' [D] {}: {:.3f}'.format(k, v))
checkpoint['D_losses'][k].append(v)
for k, v in sorted(losses_g.items()):
logger.info(' [G] {}: {:.3f}'.format(k, v))
checkpoint['G_losses'][k].append(v)
checkpoint['losses_ts'].append(t)
if t > 0 and t % args.checkpoint_every == 0:
checkpoint['counters']['t'] = t
checkpoint['counters']['epoch'] = epoch
checkpoint['sample_ts'].append(t)
logger.info('Checking stats on val ...')
metrics_val = check_accuracy(
args, val_loader, generatorSO, generatorST, discriminator, d_loss_fn
)
logger.info('Checking stats on train ...')
metrics_train = check_accuracy(
args, train_loader, generatorSO, generatorST, discriminator,
d_loss_fn, limit=True
)
for k, v in sorted(metrics_val.items()):
logger.info(' [val] {}: {:.3f}'.format(k, v))
checkpoint['metrics_val'][k].append(v)
for k, v in sorted(metrics_train.items()):
logger.info(' [train] {}: {:.3f}'.format(k, v))
checkpoint['metrics_train'][k].append(v)
min_ade = min(checkpoint['metrics_val']['ade'])
min_ade_nl = min(checkpoint['metrics_val']['ade_nl'])
if metrics_val['ade'] == min_ade:
logger.info('New low for avg_disp_error')
checkpoint['best_t'] = t
checkpoint['gso_best_state'] = generatorSO.state_dict()
checkpoint['gst_best_state'] = generatorST.state_dict()
checkpoint['d_best_state'] = discriminator.state_dict()
if metrics_val['ade_nl'] == min_ade_nl:
logger.info('New low for avg_disp_error_nl')
checkpoint['best_t_nl'] = t
checkpoint['gso_best_nl_state'] = generatorSO.state_dict()
checkpoint['gst_best_nl_state'] = generatorST.state_dict()
checkpoint['d_best_nl_state'] = discriminator.state_dict()
checkpoint['gso_state'] = generatorSO.state_dict()
checkpoint['gst_state'] = generatorST.state_dict()
checkpoint['gso_optim_state'] = optimizer_gso.state_dict()
checkpoint['gst_optim_state'] = optimizer_gst.state_dict()
checkpoint['d_state'] = discriminator.state_dict()
checkpoint['d_optim_state'] = optimizer_d.state_dict()
checkpoint_path = os.path.join(
args.output_dir, '%s_with_model.pt' % args.checkpoint_name
)
logger.info('Saving checkpoint to {}'.format(checkpoint_path))
torch.save(checkpoint, checkpoint_path)
logger.info('Done.')
checkpoint_path = os.path.join(
args.output_dir, '%s_no_model.pt' % args.checkpoint_name)
logger.info('Saving checkpoint to {}'.format(checkpoint_path))
#TODO:gso&gst
key_blacklist = [
'gso_state', 'gst_state', 'd_state', 'g_best_state', 'g_best_nl_state',
'gso_optim_state', 'gst_optim_state', 'd_optim_state', 'd_best_state',
'd_best_nl_state'
]
small_checkpoint = {}
for k, v in checkpoint.items():
if k not in key_blacklist:
small_checkpoint[k] = v
torch.save(small_checkpoint, checkpoint_path)
logger.info('Done.')
t += 1
d_steps_left = args.d_steps
g_steps_left = args.g_steps
if t >= args.num_iterations:
break
def main(args):
os.environ["CUDA_VISIBLE_DEVICES"] = args.gpu_num
train_path = get_dset_path(args.dataset_name, 'train')
#print(train_path)
val_path = get_dset_path(args.dataset_name, 'val')
long_dtype, float_dtype = get_dtypes(args)
logger.info("Initializing train dataset")
train_dset, train_loader = data_loader(args, train_path)
logger.info("Initializing val dataset")
_, val_loader = data_loader(args, val_path)
#print(len(train_loader)) 46
#iterations_per_epoch = len(train_dset) / args.batch_size / args.d_steps # len(train_dset) = 2930 useful frames:[(0, 2), (2, 4), (4, 6),...,(33860, 33866)]
iterations_per_epoch = len(train_dset) // args.batch_size // args.d_steps + 1
if args.num_epochs:
args.num_iterations = int(iterations_per_epoch * args.num_epochs)
logger.info(
'There are {} iterations per epoch'.format(iterations_per_epoch)
)
generator = TrajectoryGenerator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
encoder_h_dim=args.encoder_h_dim_g,
decoder_h_dim=args.decoder_h_dim_g,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
noise_dim=args.noise_dim,
noise_type=args.noise_type,
noise_mix_type=args.noise_mix_type,
pooling_type=args.pooling_type,
pool_every_timestep=args.pool_every_timestep,
dropout=args.dropout,
bottleneck_dim=args.bottleneck_dim,
neighborhood_size=args.neighborhood_size,
grid_size=args.grid_size,
batch_norm=args.batch_norm)
generator.apply(init_weights)#不知道m是什么
generator.type(float_dtype).train()
logger.info('Here is the generator:')
logger.info(generator)
discriminator = TrajectoryDiscriminator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
h_dim=args.encoder_h_dim_d,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
dropout=args.dropout,
batch_norm=args.batch_norm,
d_type=args.d_type)
discriminator.apply(init_weights)
discriminator.type(float_dtype).train()
logger.info('Here is the discriminator:')
logger.info(discriminator)
g_loss_fn = gan_g_loss #??????????
d_loss_fn = gan_d_loss
optimizer_g = optim.Adam(generator.parameters(), lr=args.g_learning_rate)
optimizer_d = optim.Adam(
discriminator.parameters(), lr=args.d_learning_rate
)
# Maybe restore from checkpoint
restore_path = None
if args.checkpoint_start_from is not None:
restore_path = args.checkpoint_start_from
elif args.restore_from_checkpoint == 1:
restore_path = os.path.join(args.output_dir,
'%s_with_model.pt' % args.checkpoint_name)
if restore_path is not None and os.path.isfile(restore_path):
logger.info('Restoring from checkpoint {}'.format(restore_path))
checkpoint = torch.load(restore_path)
generator.load_state_dict(checkpoint['g_state'])
discriminator.load_state_dict(checkpoint['d_state'])
optimizer_g.load_state_dict(checkpoint['g_optim_state'])
optimizer_d.load_state_dict(checkpoint['d_optim_state'])
t = checkpoint['counters']['t']
epoch = checkpoint['counters']['epoch']
checkpoint['restore_ts'].append(t)
#added by cuimingbo
args.num_epochs = checkpoint['args']['num_epochs']
args.num_iterations = int(iterations_per_epoch * args.num_epochs)
else:
# Starting from scratch, so initialize checkpoint data structure
t, epoch = 0, 0
checkpoint = {
'args': args.__dict__,
'G_losses': defaultdict(list),
'D_losses': defaultdict(list),
'losses_ts': [],
'metrics_val': defaultdict(list),
'metrics_train': defaultdict(list),
'metrics_val_epoch': defaultdict(list),
'metrics_train_epoch': defaultdict(list),
'sample_ts': [],
'restore_ts': [],
'norm_g': [],
'norm_d': [],
'counters': {
't': None,
'epoch': None,
},
'g_state': None,
'g_optim_state': None,
'g_best_state_epoch': None,
'd_state': None,
'd_optim_state': None,
'g_best_state': None,
'd_best_state': None,
'best_t': None,
'best_epoch': None,
'g_best_nl_state': None,
'd_best_state_nl': None,
'best_t_nl': None,
'best_epoch_nl': None,
}
t0 = None
#while t < args.num_iterations: # args.num_iterations = int(iterations_per_epoch * args.num_epochs)
args.num_epochs = checkpoint['args']['num_epochs']
args.num_iterations = int(iterations_per_epoch * args.num_epochs)
while epoch < args.num_epochs*8:
gc.collect()
d_steps_left = args.d_steps #2训练两次discriminator再训练一次generator
g_steps_left = args.g_steps #1
epoch += 1
logger.info('Starting epoch {}'.format(epoch))
for batch in train_loader:
#print(333333333)
#print(len(batch))
#print(np.shape(batch[0])) torch.Size([8, 764, 2])
if args.timing == 1:
torch.cuda.synchronize()
t1 = time.time()
# Decide whether to use the batch for stepping on discriminator or
# generator; an iteration consists of args.d_steps steps on the
# discriminator followed by args.g_steps steps on the generator.
if d_steps_left > 0:
step_type = 'd'
losses_d = discriminator_step(args, batch, generator,
discriminator, d_loss_fn,
optimizer_d)
checkpoint['norm_d'].append(
get_total_norm(discriminator.parameters()))
d_steps_left -= 1
elif g_steps_left > 0:
step_type = 'g'
losses_g = generator_step(args, batch, generator,
discriminator, g_loss_fn,
optimizer_g)
checkpoint['norm_g'].append(
get_total_norm(generator.parameters())
)
g_steps_left -= 1
if args.timing == 1:
torch.cuda.synchronize()
t2 = time.time()
logger.info('{} step took {}'.format(step_type, t2 - t1))
# Skip the rest if we are not at the end of an iteration
if d_steps_left > 0 or g_steps_left > 0:
continue
if args.timing == 1:
if t0 is not None:
logger.info('Interation {} took {}'.format(
t - 1, time.time() - t0
))
t0 = time.time()
# Maybe save loss，？？？？？？ choose the maximum loss?
if t % args.print_every == 0:
logger.info('t = {} / {}'.format(t + 1, args.num_iterations))
for k, v in sorted(losses_d.items()):
logger.info(' [D] {}: {:.3f}'.format(k, v))
checkpoint['D_losses'][k].append(v)
for k, v in sorted(losses_g.items()):
logger.info(' [G] {}: {:.3f}'.format(k, v))
checkpoint['G_losses'][k].append(v)
checkpoint['losses_ts'].append(t)
#added by cuimingbo
if t % iterations_per_epoch == 0: # args.num_iterations = int(iterations_per_epoch * args.num_epochs)
metrics_val_epoch = check_accuracy(
args, val_loader, generator, discriminator, d_loss_fn
)
#logger.info('Checking stats on train ...')
metrics_train_epoch = check_accuracy(
args, train_loader, generator, discriminator,
d_loss_fn, limit=True
)
for k, v in sorted(metrics_val_epoch.items()):
logger.info(' [val] {}: {:.3f}'.format(k, v))
checkpoint['metrics_val_epoch'][k].append(v)
for k, v in sorted(metrics_train_epoch.items()):#based on time to sort?
logger.info(' [train] {}: {:.3f}'.format(k, v))
checkpoint['metrics_train_epoch'][k].append(v)
min_ade = min(checkpoint['metrics_val_epoch']['ade'])
min_ade_nl = min(checkpoint['metrics_val_epoch']['ade_nl'])
if metrics_val_epoch['ade'] == min_ade:
#logger.info('New low for avg_disp_error')
checkpoint['best_epoch'] = epoch
logger.info('optimal epochs for ade: {}'.format(t // iterations_per_epoch))
checkpoint['g_best_state_epoch'] = generator.state_dict()#???????? state_dict
#checkpoint['d_best_state'] = discriminator.state_dict()
if metrics_val_epoch['ade_nl'] == min_ade_nl:
#logger.info('New low for avg_disp_error_nl')
checkpoint['best_epoch_nl'] = epoch
logger.info('optimal epochs for ade_nl: {}'.format(t // iterations_per_epoch))
#checkpoint['g_best_nl_state'] = generator.state_dict()
#checkpoint['d_best_nl_state'] = discriminator.state_dict()
# Maybe save a checkpoint
if t > 0 and t % args.checkpoint_every == 0:
checkpoint['counters']['t'] = t
checkpoint['counters']['epoch'] = epoch
checkpoint['sample_ts'].append(t)
# Check stats on the validation set
logger.info('Checking stats on val ...')
metrics_val = check_accuracy(
args, val_loader, generator, discriminator, d_loss_fn
)
logger.info('Checking stats on train ...')
metrics_train = check_accuracy(
args, train_loader, generator, discriminator,
d_loss_fn, limit=True
)
for k, v in sorted(metrics_val.items()):
logger.info(' [val] {}: {:.3f}'.format(k, v))
checkpoint['metrics_val'][k].append(v)
for k, v in sorted(metrics_train.items()):#based on time to sort?
logger.info(' [train] {}: {:.3f}'.format(k, v))
checkpoint['metrics_train'][k].append(v)
min_ade = min(checkpoint['metrics_val']['ade'])
min_ade_nl = min(checkpoint['metrics_val']['ade_nl'])
if metrics_val['ade'] == min_ade:
logger.info('New low for avg_disp_error')
checkpoint['best_t'] = t
checkpoint['g_best_state'] = generator.state_dict()#???????? state_dict
checkpoint['d_best_state'] = discriminator.state_dict()
if metrics_val['ade_nl'] == min_ade_nl:
logger.info('New low for avg_disp_error_nl')
checkpoint['best_t_nl'] = t
checkpoint['g_best_nl_state'] = generator.state_dict()
checkpoint['d_best_nl_state'] = discriminator.state_dict()
# Save another checkpoint with model weights and
# optimizer state
checkpoint['g_state'] = generator.state_dict()
checkpoint['g_optim_state'] = optimizer_g.state_dict()
checkpoint['d_state'] = discriminator.state_dict()
checkpoint['d_optim_state'] = optimizer_d.state_dict()
checkpoint_path = os.path.join(
args.output_dir, '%s_with_model.pt' % args.checkpoint_name
)
logger.info('Saving checkpoint to {}'.format(checkpoint_path))
torch.save(checkpoint, checkpoint_path)
logger.info('Done.')
# Save a checkpoint with no model weights by making a shallow
# copy of the checkpoint excluding some items
checkpoint_path = os.path.join(
args.output_dir, '%s_no_model.pt' % args.checkpoint_name)
logger.info('Saving checkpoint to {}'.format(checkpoint_path))
key_blacklist = [
'g_state', 'd_state', 'g_best_state', 'g_best_nl_state',
'g_optim_state', 'd_optim_state', 'd_best_state',
'd_best_nl_state'
]
small_checkpoint = {}
for k, v in checkpoint.items():
if k not in key_blacklist:
small_checkpoint[k] = v
torch.save(small_checkpoint, checkpoint_path)
logger.info('Done.')
t += 1
d_steps_left = args.d_steps
g_steps_left = args.g_steps
#print(t)
if t >= args.num_iterations*4:
break
def main(args):
os.environ["CUDA_VISIBLE_DEVICES"] = args.gpu_num
train_path = get_dset_path(args.dataset_name, 'train')
val_path = get_dset_path(args.dataset_name, 'val')
long_dtype, float_dtype = get_dtypes(args)
logger.info("Initializing train dataset")
train_dset, train_loader = data_loader(args, train_path)
logger.info("Initializing val dataset")
_, val_loader = data_loader(args, val_path)
iterations_per_epoch = len(train_dset) / args.batch_size / args.d_steps
# if args.num_epochs:
# args.num_iterations = int(iterations_per_epoch * args.num_epochs)
logger.info(
'There are {} iterations per epoch'.format(iterations_per_epoch))
global TrajectoryGenerator, TrajectoryDiscriminator
if args.GAN_type == 'rnn':
print("Default Social GAN")
from sgan.models import TrajectoryGenerator, TrajectoryDiscriminator
elif args.GAN_type == 'simple_rnn':
print("Default Social GAN")
from sgan.rnn_models import TrajectoryGenerator, TrajectoryDiscriminator
else:
print("Feedforward GAN")
from sgan.ffd_models import TrajectoryGenerator, TrajectoryDiscriminator
if args.GAN_type == 'ff':
generator = TrajectoryGenerator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
encoder_h_dim=args.encoder_h_dim_g,
decoder_h_dim=args.decoder_h_dim_g,
rep_dim=args.rep_dim,
mlp_dim=args.mlp_dim,
encoder_num_layers=args.encoder_num_layers,
decoder_num_layers=args.decoder_num_layers,
noise_dim=args.noise_dim,
noise_type=args.noise_type,
noise_mix_type=args.noise_mix_type,
pooling_type=args.pooling_type,
pool_every_timestep=args.pool_every_timestep,
dropout=args.dropout,
bottleneck_dim=args.bottleneck_dim,
neighborhood_size=args.neighborhood_size,
grid_size=args.grid_size,
batch_norm=args.batch_norm,
pos_embed=args.pos_embed,
pos_embed_freq=args.pos_embed_freq,
)
discriminator = TrajectoryDiscriminator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
h_dim=args.encoder_h_dim_d,
mlp_dim=args.mlp_dim,
num_layers=args.discrim_num_layers,
dropout=args.dropout,
batch_norm=args.batch_norm,
d_type=args.d_type)
else:
generator = TrajectoryGenerator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
encoder_h_dim=args.encoder_h_dim_g,
decoder_h_dim=args.decoder_h_dim_g,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
noise_dim=args.noise_dim,
noise_type=args.noise_type,
noise_mix_type=args.noise_mix_type,
pooling_type=args.pooling_type,
pool_every_timestep=args.pool_every_timestep,
dropout=args.dropout,
bottleneck_dim=args.bottleneck_dim,
neighborhood_size=args.neighborhood_size,
grid_size=args.grid_size,
batch_norm=args.batch_norm)
discriminator = TrajectoryDiscriminator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
h_dim=args.encoder_h_dim_d,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
dropout=args.dropout,
batch_norm=args.batch_norm,
d_type=args.d_type)
generator.apply(init_weights)
generator.type(float_dtype).train()
logger.info('Here is the generator:')
logger.info(generator)
discriminator.apply(init_weights)
discriminator.type(float_dtype).train()
logger.info('Here is the discriminator:')
logger.info(discriminator)
g_loss_fn = gan_g_loss
d_loss_fn = gan_d_loss
optimizer_g = optim.Adam(generator.parameters(), lr=args.g_learning_rate)
optimizer_d = optim.Adam(discriminator.parameters(),
lr=args.d_learning_rate)
# Maybe restore from checkpoint
restore_path = None
if args.checkpoint_start_from is not None:
restore_path = args.checkpoint_start_from
elif args.restore_from_checkpoint == 1:
restore_path = os.path.join(args.output_dir,
'%s_with_model.pt' % args.checkpoint_name)
if restore_path is not None and os.path.isfile(restore_path):
logger.info('Restoring from checkpoint {}'.format(restore_path))
checkpoint = torch.load(restore_path)
generator.load_state_dict(checkpoint['g_state'])
discriminator.load_state_dict(checkpoint['d_state'])
optimizer_g.load_state_dict(checkpoint['g_optim_state'])
optimizer_d.load_state_dict(checkpoint['d_optim_state'])
t = checkpoint['counters']['t']
epoch = checkpoint['counters']['epoch']
checkpoint['restore_ts'].append(t)
else:
# Starting from scratch, so initialize checkpoint data structure
t, epoch = 0, 0
checkpoint = {
'args': args.__dict__,
'G_losses': defaultdict(list),
'D_losses': defaultdict(list),
'losses_ts': [],
'metrics_val': defaultdict(list),
'metrics_train': defaultdict(list),
'sample_ts': [],
'restore_ts': [],
'norm_g': [],
'norm_d': [],
'counters': {
't': None,
'epoch': None,
},
'g_state': None,
'g_optim_state': None,
'd_state': None,
'd_optim_state': None,
'g_best_state': None,
'd_best_state': None,
'best_t': None,
'g_best_nl_state': None,
'd_best_state_nl': None,
'best_t_nl': None,
}
t0 = None
fig = plt.figure()
ax = fig.add_axes([0.1, 0.1, 0.75, 0.75])
while t < args.num_iterations:
gc.collect()
d_steps_left = args.d_steps
g_steps_left = args.g_steps
epoch += 1
logger.info('Starting epoch {}'.format(epoch))
for batch in train_loader:
if args.timing == 1:
torch.cuda.synchronize()
t1 = time.time()
# Decide whether to use the batch for stepping on discriminator or
# generator; an iteration consists of args.d_steps steps on the
# discriminator followed by args.g_steps steps on the generator.
if d_steps_left > 0:
step_type = 'd'
losses_d = discriminator_step(args, batch, generator,
discriminator, d_loss_fn,
optimizer_d)
checkpoint['norm_d'].append(
get_total_norm(discriminator.parameters()))
d_steps_left -= 1
elif g_steps_left > 0:
step_type = 'g'
losses_g = generator_step(args, batch, generator,
discriminator, g_loss_fn,
optimizer_g)
checkpoint['norm_g'].append(
get_total_norm(generator.parameters()))
g_steps_left -= 1
if args.timing == 1:
torch.cuda.synchronize()
t2 = time.time()
logger.info('{} step took {}'.format(step_type, t2 - t1))
# Skip the rest if we are not at the end of an iteration
if d_steps_left > 0 or g_steps_left > 0:
continue
if args.timing == 1:
if t0 is not None:
logger.info('Interation {} took {}'.format(
t - 1,
time.time() - t0))
t0 = time.time()
# Maybe save loss
if t % args.print_every == 0:
logger.info('t = {} / {}'.format(t + 1, args.num_iterations))
for k, v in sorted(losses_d.items()):
logger.info(' [D] {}: {:.3f}'.format(k, v))
checkpoint['D_losses'][k].append(v)
for k, v in sorted(losses_g.items()):
logger.info(' [G] {}: {:.3f}'.format(k, v))
checkpoint['G_losses'][k].append(v)
checkpoint['losses_ts'].append(t)
if args.controlled_expt:
if t % 10 == 0:
save = False
# if t == 160:
# save = True
# print(t)
plot_trajectory(fig, ax, args, val_loader, generator, save)
# Maybe save a checkpoint
if t > 0 and t % args.checkpoint_every == 0:
checkpoint['counters']['t'] = t
checkpoint['counters']['epoch'] = epoch
checkpoint['sample_ts'].append(t)
# Check stats on the validation set
logger.info('Checking stats on val ...')
metrics_val = check_accuracy(args, val_loader, generator,
discriminator, d_loss_fn)
logger.info('Checking stats on train ...')
metrics_train = check_accuracy(args,
train_loader,
generator,
discriminator,
d_loss_fn,
limit=True)
for k, v in sorted(metrics_val.items()):
logger.info(' [val] {}: {:.3f}'.format(k, v))
checkpoint['metrics_val'][k].append(v)
for k, v in sorted(metrics_train.items()):
logger.info(' [train] {}: {:.3f}'.format(k, v))
checkpoint['metrics_train'][k].append(v)
min_ade = min(checkpoint['metrics_val']['ade'])
min_ade_nl = min(checkpoint['metrics_val']['ade_nl'])
if metrics_val['ade'] == min_ade:
logger.info('New low for avg_disp_error')
checkpoint['best_t'] = t
checkpoint['g_best_state'] = generator.state_dict()
checkpoint['d_best_state'] = discriminator.state_dict()
if metrics_val['ade_nl'] == min_ade_nl:
logger.info('New low for avg_disp_error_nl')
checkpoint['best_t_nl'] = t
checkpoint['g_best_nl_state'] = generator.state_dict()
checkpoint['d_best_nl_state'] = discriminator.state_dict()
if metrics_val['ade'] == min_ade:
# Save another checkpoint with model weights and
# optimizer state
checkpoint['g_state'] = generator.state_dict()
checkpoint['g_optim_state'] = optimizer_g.state_dict()
checkpoint['d_state'] = discriminator.state_dict()
checkpoint['d_optim_state'] = optimizer_d.state_dict()
checkpoint_path = os.path.join(
args.output_dir,
'%s_with_model.pt' % args.checkpoint_name)
logger.info(
'Saving checkpoint to {}'.format(checkpoint_path))
torch.save(checkpoint, checkpoint_path)
logger.info('Done.')
# Save a checkpoint with no model weights by making a shallow
# copy of the checkpoint excluding some items
checkpoint_path = os.path.join(
args.output_dir,
'%s_no_model.pt' % args.checkpoint_name)
logger.info(
'Saving checkpoint to {}'.format(checkpoint_path))
key_blacklist = [
'g_state', 'd_state', 'g_best_state',
'g_best_nl_state', 'g_optim_state', 'd_optim_state',
'd_best_state', 'd_best_nl_state'
]
small_checkpoint = {}
for k, v in checkpoint.items():
if k not in key_blacklist:
small_checkpoint[k] = v
torch.save(small_checkpoint, checkpoint_path)
logger.info('Done.')
t += 1
d_steps_left = args.d_steps
g_steps_left = args.g_steps
if t >= args.num_iterations:
break
def main():
results_dict = {
'data_precondition': list(),
'dataset': list(),
'method': list(),
'runtime': list(),
'num_samples': list(),
'num_agents': list()
}
data_precondition = 'curr'
for dataset_name in ['eth', 'hotel', 'univ', 'zara1', 'zara2']:
print('At %s dataset' % dataset_name)
### SGAN LOADING ###
sgan_model_path = os.path.join(
args.sgan_models_path, '_'.join([dataset_name, '12', 'model.pt']))
checkpoint = torch.load(sgan_model_path, map_location='cpu')
generator = eval_utils.get_generator(checkpoint)
_args = AttrDict(checkpoint['args'])
path = get_dset_path(_args.dataset_name, args.sgan_dset_type)
print('Evaluating', sgan_model_path, 'on', _args.dataset_name,
args.sgan_dset_type)
_, sgan_data_loader = data_loader(_args, path)
### OUR METHOD LOADING ###
data_dir = '../sgan-dataset/data'
eval_data_dict_name = '%s_test.pkl' % dataset_name
log_dir = '../sgan-dataset/logs/%s' % dataset_name
trained_model_dir = os.path.join(
log_dir, eval_utils.get_our_model_dir(dataset_name))
eval_data_path = os.path.join(data_dir, eval_data_dict_name)
with open(eval_data_path, 'rb') as f:
eval_data_dict = pickle.load(f, encoding='latin1')
eval_dt = eval_data_dict['dt']
print('Loaded evaluation data from %s, eval_dt = %.2f' %
(eval_data_path, eval_dt))
# Loading weights from the trained model.
specific_hyperparams = eval_utils.get_model_hyperparams(
args, dataset_name)
model_registrar = ModelRegistrar(trained_model_dir, args.device)
model_registrar.load_models(specific_hyperparams['best_iter'])
for key in eval_data_dict['input_dict'].keys():
if isinstance(key, STGNode):
random_node = key
break
hyperparams['state_dim'] = eval_data_dict['input_dict'][
random_node].shape[2]
hyperparams['pred_dim'] = len(eval_data_dict['pred_indices'])
hyperparams['pred_indices'] = eval_data_dict['pred_indices']
hyperparams['dynamic_edges'] = args.dynamic_edges
hyperparams['edge_state_combine_method'] = specific_hyperparams[
'edge_state_combine_method']
hyperparams['edge_influence_combine_method'] = specific_hyperparams[
'edge_influence_combine_method']
hyperparams['nodes_standardization'] = eval_data_dict[
'nodes_standardization']
hyperparams['labels_standardization'] = eval_data_dict[
'labels_standardization']
hyperparams['edge_radius'] = args.edge_radius
eval_hyperparams = copy.deepcopy(hyperparams)
eval_hyperparams['nodes_standardization'] = eval_data_dict[
"nodes_standardization"]
eval_hyperparams['labels_standardization'] = eval_data_dict[
"labels_standardization"]
kwargs_dict = {
'dynamic_edges':
hyperparams['dynamic_edges'],
'edge_state_combine_method':
hyperparams['edge_state_combine_method'],
'edge_influence_combine_method':
hyperparams['edge_influence_combine_method'],
'edge_addition_filter':
args.edge_addition_filter,
'edge_removal_filter':
args.edge_removal_filter
}
print('-------------------------')
print('| EVALUATION PARAMETERS |')
print('-------------------------')
print('| checking: %s' % data_precondition)
print('| device: %s' % args.device)
print('| eval_device: %s' % args.eval_device)
print('| edge_radius: %s' % hyperparams['edge_radius'])
print('| EE state_combine_method: %s' %
hyperparams['edge_state_combine_method'])
print('| EIE scheme: %s' %
hyperparams['edge_influence_combine_method'])
print('| dynamic_edges: %s' % hyperparams['dynamic_edges'])
print('| edge_addition_filter: %s' % args.edge_addition_filter)
print('| edge_removal_filter: %s' % args.edge_removal_filter)
print('| MHL: %s' % hyperparams['minimum_history_length'])
print('| PH: %s' % hyperparams['prediction_horizon'])
print('| # Samples: %s' % args.num_samples)
print('| # Runs: %s' % args.num_runs)
print('-------------------------')
eval_stg = OnlineSpatioTemporalGraphCVAEModel(None, model_registrar,
eval_hyperparams,
kwargs_dict,
args.eval_device)
print('Created evaluation STG model.')
print('About to begin evaluation computation for %s.' % dataset_name)
with torch.no_grad():
eval_inputs, _ = eval_utils.sample_inputs_and_labels(
eval_data_dict, device=args.eval_device)
(obs_traj, pred_traj_gt, obs_traj_rel, seq_start_end, data_ids,
t_predicts) = eval_utils.get_sgan_data_format(
eval_inputs, what_to_check=data_precondition)
num_runs = args.num_runs
print('num_runs, seq_start_end.shape[0]', args.num_runs,
seq_start_end.shape[0])
if args.num_runs > seq_start_end.shape[0]:
print(
'num_runs (%d) > seq_start_end.shape[0] (%d), reducing num_runs to match.'
% (num_runs, seq_start_end.shape[0]))
num_runs = seq_start_end.shape[0]
random_scene_idxs = np.random.choice(seq_start_end.shape[0],
size=(num_runs, ),
replace=False).astype(int)
for scene_idxs in random_scene_idxs:
choice_list = seq_start_end[scene_idxs]
overall_tic = time.time()
for sample_num in range(args.num_samples):
pred_traj_fake_rel = generator(obs_traj, obs_traj_rel,
seq_start_end)
pred_traj_fake = relative_to_abs(pred_traj_fake_rel,
obs_traj[-1])
overall_toc = time.time()
print('SGAN overall', overall_toc - overall_tic)
results_dict['data_precondition'].append(data_precondition)
results_dict['dataset'].append(dataset_name)
results_dict['method'].append('sgan')
results_dict['runtime'].append(overall_toc - overall_tic)
results_dict['num_samples'].append(args.num_samples)
results_dict['num_agents'].append(
int(choice_list[1].item() - choice_list[0].item()))
print('Done running SGAN')
for node in eval_data_dict['nodes_standardization']:
for key in eval_data_dict['nodes_standardization'][node]:
eval_data_dict['nodes_standardization'][node][
key] = torch.from_numpy(
eval_data_dict['nodes_standardization'][node]
[key]).float().to(args.device)
for node in eval_data_dict['labels_standardization']:
for key in eval_data_dict['labels_standardization'][node]:
eval_data_dict['labels_standardization'][node][
key] = torch.from_numpy(
eval_data_dict['labels_standardization'][node]
[key]).float().to(args.device)
for run in range(num_runs):
random_scene_idx = random_scene_idxs[run]
data_id = data_ids[random_scene_idx]
t_predict = t_predicts[random_scene_idx] - 1
init_scene_dict = dict()
for first_timestep in range(t_predict + 1):
for node, traj_data in eval_data_dict['input_dict'].items():
if isinstance(node, STGNode):
init_pos = traj_data[data_id, first_timestep, :2]
if np.any(init_pos):
init_scene_dict[node] = init_pos
if len(init_scene_dict) > 0:
break
init_scene_graph = SceneGraph()
init_scene_graph.create_from_scene_dict(init_scene_dict,
args.edge_radius)
curr_inputs = {
k: v[data_id, first_timestep:t_predict + 1]
for k, v in eval_data_dict['input_dict'].items()
if (isinstance(k, STGNode) and (
k in init_scene_graph.active_nodes))
}
curr_pos_inputs = {k: v[..., :2] for k, v in curr_inputs.items()}
with torch.no_grad():
overall_tic = time.time()
preds_dict_most_likely = eval_stg.forward(
init_scene_graph,
curr_pos_inputs,
curr_inputs,
None,
hyperparams['prediction_horizon'],
args.num_samples,
most_likely=True)
overall_toc = time.time()
print('Our MLz overall', overall_toc - overall_tic)
results_dict['data_precondition'].append(data_precondition)
results_dict['dataset'].append(dataset_name)
results_dict['method'].append('our_most_likely')
results_dict['runtime'].append(overall_toc - overall_tic)
results_dict['num_samples'].append(args.num_samples)
results_dict['num_agents'].append(len(init_scene_dict))
overall_tic = time.time()
preds_dict_full = eval_stg.forward(
init_scene_graph,
curr_pos_inputs,
curr_inputs,
None,
hyperparams['prediction_horizon'],
args.num_samples,
most_likely=False)
overall_toc = time.time()
print('Our Full overall', overall_toc - overall_tic)
results_dict['data_precondition'].append(data_precondition)
results_dict['dataset'].append(dataset_name)
results_dict['method'].append('our_full')
results_dict['runtime'].append(overall_toc - overall_tic)
results_dict['num_samples'].append(args.num_samples)
results_dict['num_agents'].append(len(init_scene_dict))
pd.DataFrame.from_dict(results_dict).to_csv(
'../sgan-dataset/plots/data/%s_%s_runtimes.csv' %
(data_precondition, dataset_name),
index=False)
def main(args):
logdir = "tensorboard/" + args.dataset_name + "/" + str(
args.num_epochs) + "_epoch_" + str(args.g_learning_rate) + "_lr"
if os.path.exists(logdir):
for file in os.listdir(logdir):
os.unlink(os.path.join(logdir, file))
writer = SummaryWriter(logdir)
os.environ["CUDA_VISIBLE_DEVICES"] = args.gpu_num
train_path = get_dset_path(args.dataset_name, 'train')
val_path = get_dset_path(args.dataset_name, 'val')
checkpoint_path = os.path.join(args.output_dir,
'%s_with_model.pt' % args.checkpoint_name)
pathlib.Path(checkpoint_path).parent.mkdir(parents=True, exist_ok=True)
long_dtype, float_dtype = get_dtypes(args)
if args.moving_threshold:
generator = TrajEstimatorThreshold(obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
encoder_h_dim=args.encoder_h_dim_g,
num_layers=args.num_layers,
dropout=args.dropout)
else:
generator = TrajEstimator(obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
encoder_h_dim=args.encoder_h_dim_g,
num_layers=args.num_layers,
dropout=args.dropout)
generator.apply(init_weights)
generator.type(float_dtype).train()
generator.train()
logger.info('Here is the generator:')
logger.info(generator)
logger.info("Initializing train dataset")
train_dset, train_loader = data_loader(args, train_path)
logger.info("Initializing val dataset")
_, val_loader = data_loader(args, val_path)
iterations_per_epoch = len(train_dset) / args.batch_size
args.num_iterations = int(iterations_per_epoch * args.num_epochs)
# log 100 points
log_tensorboard_every = int(args.num_iterations * 0.01) - 1
if log_tensorboard_every <= 0:
#there are less than 100 iterations
log_tensorboard_every = int(args.num_iterations) / 4
logger.info('There are {} iterations per epoch'.format(
int(iterations_per_epoch)))
optimizer_g = optim.Adam(generator.parameters(), lr=args.g_learning_rate)
# Maybe restore from checkpoint
restore_path = None
if args.checkpoint_start_from is not None:
restore_path = args.checkpoint_start_from
elif args.restore_from_checkpoint == 1:
restore_path = os.path.join(args.output_dir,
'%s_with_model.pt' % args.checkpoint_name)
if restore_path is not None and os.path.isfile(restore_path):
logger.info('Restoring from checkpoint {}'.format(restore_path))
checkpoint = torch.load(restore_path)
generator.load_state_dict(checkpoint['g_state'])
optimizer_g.load_state_dict(checkpoint['g_optim_state'])
t = checkpoint['counters']['t']
epoch = checkpoint['counters']['epoch']
checkpoint['restore_ts'].append(t)
else:
# Starting from scratch, so initialize checkpoint data structure
t, epoch = 0, 0
checkpoint = {
'args': args.__dict__,
'G_losses': defaultdict(list),
'losses_ts': [],
'metrics_val': defaultdict(list),
'metrics_train': defaultdict(list),
'sample_ts': [],
'restore_ts': [],
'norm_g': [],
'counters': {
't': None,
'epoch': None,
},
'g_state': None,
'g_optim_state': None,
'g_best_state': None,
'best_t': None,
'g_best_nl_state': None,
'best_t_nl': None,
}
while t < args.num_iterations:
gc.collect()
epoch += 1
logger.info('Starting epoch {}'.format(epoch))
for batch in train_loader:
losses_g = generator_step(args, batch, generator, optimizer_g,
epoch)
checkpoint['norm_g'].append(get_total_norm(generator.parameters()))
# Maybe save loss
if t % args.print_every == 0:
logger.info('t = {} / {}'.format(t + 1, args.num_iterations))
for k, v in sorted(losses_g.items()):
logger.info(' [G] {}: {:.3f}'.format(k, v))
checkpoint['G_losses'][k].append(v)
checkpoint['losses_ts'].append(t)
# Maybe save values for tensorboard
if t % log_tensorboard_every == 0:
for k, v in sorted(losses_g.items()):
writer.add_scalar(k, v, t)
metrics_val = check_accuracy(args, val_loader, generator,
epoch)
metrics_train = check_accuracy(args,
train_loader,
generator,
epoch,
limit=True)
to_keep = ["g_l2_loss_rel", "ade", "fde"]
for k, v in sorted(metrics_val.items()):
if k in to_keep:
writer.add_scalar("val_" + k, v, t)
for k, v in sorted(metrics_train.items()):
if k in to_keep:
writer.add_scalar("train_" + k, v, t)
# Maybe save a checkpoint
if t % args.checkpoint_every == 0 and t > 0:
checkpoint['counters']['t'] = t
checkpoint['counters']['epoch'] = epoch
checkpoint['sample_ts'].append(t)
# Check stats on the validation set
logger.info('Checking stats on val ...')
metrics_val = check_accuracy(args, val_loader, generator,
epoch)
logger.info('Checking stats on train ...')
metrics_train = check_accuracy(args,
train_loader,
generator,
epoch,
limit=True)
for k, v in sorted(metrics_val.items()):
logger.info(' [val] {}: {:.3f}'.format(k, v))
checkpoint['metrics_val'][k].append(v)
for k, v in sorted(metrics_train.items()):
logger.info(' [train] {}: {:.3f}'.format(k, v))
checkpoint['metrics_train'][k].append(v)
min_ade = min(checkpoint['metrics_val']['ade'])
min_ade_nl = min(checkpoint['metrics_val']['ade_nl'])
if metrics_val['ade'] == min_ade:
logger.info('New low for avg_disp_error')
checkpoint['best_t'] = t
checkpoint['g_best_state'] = generator.state_dict()
if metrics_val['ade_nl'] == min_ade_nl:
logger.info('New low for avg_disp_error_nl')
checkpoint['best_t_nl'] = t
checkpoint['g_best_nl_state'] = generator.state_dict()
# Save another checkpoint with model weights and
# optimizer state
checkpoint['g_state'] = generator.state_dict()
checkpoint['g_optim_state'] = optimizer_g.state_dict()
logger.info('Saving checkpoint to {}'.format(checkpoint_path))
torch.save(checkpoint, checkpoint_path)
logger.info('Done.')
t += 1
if t >= args.num_iterations:
if args.moving_threshold:
logger.info(
"Non-moving trajectories : {}%, threshold : {}".format(
round(
(float(generator.total_trajs_under_threshold) /
generator.total_trajs) * 100),
generator.threshold))
break
def main(args):
if args.mode == 'training':
args.checkpoint_every = 100
args.teacher_name = "default"
args.restore_from_checkpoint = 0
#args.l2_loss_weight = 0.0
args.rollout_steps = 1
args.rollout_rate = 1
args.rollout_method = 'sgd'
#print("HHHH"+str(args.l2_loss_weight))
os.environ["CUDA_VISIBLE_DEVICES"] = args.gpu_num
train_path = get_dset_path(args.dataset_name, 'train')
val_path = get_dset_path(args.dataset_name, 'val')
long_dtype, float_dtype = get_dtypes(args)
logger.info("Initializing train dataset")
train_dset, train_loader = data_loader(args, train_path)
logger.info("Initializing val dataset")
_, val_loader = data_loader(args, val_path)
iterations_per_epoch = len(train_dset) / args.batch_size / args.d_steps
if args.num_epochs:
args.num_iterations = int(iterations_per_epoch * args.num_epochs)
logger.info(
'There are {} iterations per epoch'.format(iterations_per_epoch))
global TrajectoryGenerator, TrajectoryDiscriminator
if args.GAN_type == 'rnn':
print("Default Social GAN")
from sgan.models import TrajectoryGenerator, TrajectoryDiscriminator
elif args.GAN_type == 'simple_rnn':
print("Default Social GAN")
from sgan.rnn_models import TrajectoryGenerator, TrajectoryDiscriminator
else:
print("Feedforward GAN")
if (args.Encoder_type == 'MLP' and args.Decoder_type == 'MLP'):
from sgan.cgs_integrated_model.cgs_ffd_models_E_MLP_D_MLP import TrajectoryGenerator, TrajectoryDiscriminator
if (args.Encoder_type == 'MLP' and args.Decoder_type == 'LSTM'):
from sgan.cgs_integrated_model.cgs_ffd_models_E_MLP_D_LSTM import TrajectoryGenerator, TrajectoryDiscriminator
if (args.Encoder_type == 'LSTM' and args.Decoder_type == 'MLP'):
from sgan.cgs_integrated_model.cgs_ffd_models_E_LSTM_D_MLP import TrajectoryGenerator, TrajectoryDiscriminator
if (args.Encoder_type == 'LSTM' and args.Decoder_type == 'LSTM'):
from sgan.cgs_integrated_model.cgs_ffd_models_E_LSTM_D_LSTM import TrajectoryGenerator, TrajectoryDiscriminator
#image_dir = 'images/' + 'curve_5_traj_l2_0.5'
#image_dir = 'images/5trajectory/' + 'havingplots'+ '2-layers-EN-' + args.Encoder_type + '-DE-20-layers-' + args.Decoder_type + '-L2_' + str(args.l2_loss_weight)
image_dir = 'images/' + str(args.dataset_name) + \
'_EN_' + args.Encoder_type + '(' + str(*[args.mlp_encoder_layers if args.Encoder_type == 'MLP' else 1]) + ')' + \
'_DE_' + args.Decoder_type + '(' + str(*[args.mlp_decoder_layers if args.Decoder_type == 'MLP' else 1]) + ')' + \
'_DIS_' + args.GAN_type.upper() + '(' + str(args.mlp_discriminator_layers) + ')' + \
'_L2_Weight' + '(' + str(args.l2_loss_weight) + ')'
print("Image Dir: ", image_dir)
if not os.path.exists(image_dir):
os.makedirs(image_dir)
generator = TrajectoryGenerator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
encoder_h_dim=args.encoder_h_dim_g,
decoder_h_dim=args.decoder_h_dim_g,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
noise_dim=args.noise_dim,
noise_type=args.noise_type,
noise_mix_type=args.noise_mix_type,
pooling_type=args.pooling_type,
pool_every_timestep=args.pool_every_timestep,
dropout=args.dropout,
bottleneck_dim=args.bottleneck_dim,
neighborhood_size=args.neighborhood_size,
grid_size=args.grid_size,
batch_norm=args.batch_norm,
num_mlp_decoder_layers=args.mlp_decoder_layers,
num_mlp_encoder_layers=args.mlp_encoder_layers)
generator.apply(init_weights)
generator.type(float_dtype).train()
logger.info('Here is the generator:')
logger.info(generator)
discriminator = TrajectoryDiscriminator(
obs_len=args.obs_len,
pred_len=args.pred_len,
embedding_dim=args.embedding_dim,
h_dim=args.encoder_h_dim_d,
mlp_dim=args.mlp_dim,
num_layers=args.num_layers,
dropout=args.dropout,
batch_norm=args.batch_norm,
d_type=args.d_type,
mlp_discriminator_layers=args.mlp_discriminator_layers,
num_mlp_encoder_layers=args.mlp_encoder_layers)
discriminator.apply(init_weights)
discriminator.type(float_dtype).train()
logger.info('Here is the discriminator:')
logger.info(discriminator)
# build teacher
print("[!] teacher_name: ", args.teacher_name)
if args.teacher_name == 'default':
teacher = None
elif args.teacher_name == 'gpurollout':
from teacher_gpu_rollout_torch import TeacherGPURollout
teacher = TeacherGPURollout(args)
teacher.set_env(discriminator, generator)
print("GPU Rollout Teacher")
else:
raise NotImplementedError
g_loss_fn = gan_g_loss
d_loss_fn = gan_d_loss
optimizer_g = optim.Adam(generator.parameters(), lr=args.g_learning_rate)
optimizer_d = optim.Adam(discriminator.parameters(),
lr=args.d_learning_rate)
# # Create D optimizer.
# self.d_optim = tf.train.AdamOptimizer(self.disc_LR*config.D_LR, beta1=config.beta1)
# # Compute the gradients for a list of variables.
# self.grads_d_and_vars = self.d_optim.compute_gradients(self.d_loss, var_list=self.d_vars)
# self.grad_default_real = self.d_optim.compute_gradients(self.d_loss_real, var_list=inputs)
# # Ask the optimizer to apply the capped gradients.
# self.update_d = self.d_optim.apply_gradients(self.grads_d_and_vars)
# ## Get Saliency Map - Teacher
# self.saliency_map = tf.gradients(self.d_loss, self.inputs)[0]
# ###### G Optimizer ######
# # Create G optimizer.
# self.g_optim = tf.train.AdamOptimizer(config.learning_rate*config.G_LR, beta1=config.beta1)
# # Compute the gradients for a list of variables.
# ## With respect to Generator Weights - AutoLoss
# self.grad_default = self.g_optim.compute_gradients(self.g_loss, var_list=[self.G, self.g_vars])
# ## With Respect to Images given to D - Teacher
# # self.grad_default = g_optim.compute_gradients(self.g_loss, var_list=)
# if config.teacher_name == 'default':
# self.optimal_grad = self.grad_default[0][0]
# self.optimal_batch = self.G - self.optimal_grad
# else:
# self.optimal_grad, self.optimal_batch = self.teacher.build_teacher(self.G, self.D_, self.grad_default[0][0], self.inputs)
# # Ask the optimizer to apply the manipulated gradients.
# grads_collected = tf.gradients(self.G, self.g_vars, self.optimal_grad)
# grads_and_vars_collected = list(zip(grads_collected, self.g_vars))
# self.g_teach = self.g_optim.apply_gradients(grads_and_vars_collected)
# Maybe restore from checkpoint
restore_path = None
if args.checkpoint_start_from is not None:
restore_path = args.checkpoint_start_from
elif args.restore_from_checkpoint == 1:
restore_path = os.path.join(args.output_dir,
'%s_with_model.pt' % args.checkpoint_name)
if restore_path is not None and os.path.isfile(restore_path):
logger.info('Restoring from checkpoint {}'.format(restore_path))
checkpoint = torch.load(restore_path)
generator.load_state_dict(checkpoint['g_state'])
discriminator.load_state_dict(checkpoint['d_state'])
optimizer_g.load_state_dict(checkpoint['g_optim_state'])
optimizer_d.load_state_dict(checkpoint['d_optim_state'])
t = checkpoint['counters']['t']
epoch = checkpoint['counters']['epoch']
checkpoint['restore_ts'].append(t)
else:
# Starting from scratch, so initialize checkpoint data structure
t, epoch = 0, 0
checkpoint = {
'args': args.__dict__,
'G_losses': defaultdict(list),
'D_losses': defaultdict(list),
'losses_ts': [],
'metrics_val': defaultdict(list),
'metrics_train': defaultdict(list),
'sample_ts': [],
'restore_ts': [],
'norm_g': [],
'norm_d': [],
'counters': {
't': None,
'epoch': None,
},
'g_state': None,
'g_optim_state': None,
'd_state': None,
'd_optim_state': None,
'g_best_state': None,
'd_best_state': None,
'best_t': None,
'g_best_nl_state': None,
'd_best_state_nl': None,
'best_t_nl': None,
}
t0 = None
fig = plt.figure()
ax = fig.add_axes([0.1, 0.1, 0.75, 0.75])
while t < args.num_iterations:
gc.collect()
d_steps_left = args.d_steps
g_steps_left = args.g_steps
epoch += 1
logger.info('Starting epoch {}'.format(epoch))
for batch in train_loader:
if args.timing == 1:
torch.cuda.synchronize()
t1 = time.time()
# Decide whether to use the batch for stepping on discriminator or
# generator; an iteration consists of args.d_steps steps on the
# discriminator followed by args.g_steps steps on the generator.
if d_steps_left > 0:
if args.mode != 'testing':
step_type = 'd'
losses_d = discriminator_step(args, batch, generator,
discriminator, d_loss_fn,
optimizer_d, teacher,
args.mode)
checkpoint['norm_d'].append(
get_total_norm(discriminator.parameters()))
d_steps_left -= 1
elif g_steps_left > 0:
if args.mode != 'testing':
step_type = 'g'
losses_g = generator_step(args, batch, generator,
discriminator, g_loss_fn,
optimizer_g, args.mode)
checkpoint['norm_g'].append(
get_total_norm(generator.parameters()))
g_steps_left -= 1
if args.timing == 1:
torch.cuda.synchronize()
t2 = time.time()
logger.info('{} step took {}'.format(step_type, t2 - t1))
# Skip the rest if we are not at the end of an iteration
if d_steps_left > 0 or g_steps_left > 0:
continue
if args.timing == 1:
if t0 is not None:
logger.info('Interation {} took {}'.format(
t - 1,
time.time() - t0))
t0 = time.time()
# Maybe save loss
if t % args.print_every == 0 and args.mode != 'testing':
logger.info('t = {} / {}'.format(t + 1, args.num_iterations))
for k, v in sorted(losses_d.items()):
logger.info(' [D] {}: {:.3f}'.format(k, v))
checkpoint['D_losses'][k].append(v)
for k, v in sorted(losses_g.items()):
logger.info(' [G] {}: {:.3f}'.format(k, v))
checkpoint['G_losses'][k].append(v)
checkpoint['losses_ts'].append(t)
# # Check stats on the validation set
# logger.info('Checking stats on val ...')
# metrics_val = check_accuracy(
# args, val_loader, generator, discriminator, d_loss_fn
# )
# logger.info('Checking stats on train ...')
# metrics_train = check_accuracy(
# args, train_loader, generator, discriminator,
# d_loss_fn, limit=True
# )
# for k, v in sorted(metrics_val.items()):
# logger.info(' [val] {}: {:.3f}'.format(k, v))
# checkpoint['metrics_val'][k].append(v)
# for k, v in sorted(metrics_train.items()):
# logger.info(' [train] {}: {:.3f}'.format(k, v))
# checkpoint['metrics_train'][k].append(v)
# min_ade = min(checkpoint['metrics_val']['ade'])
# min_ade_nl = min(checkpoint['metrics_val']['ade_nl'])
# if metrics_val['ade'] == min_ade:
# logger.info('New low for avg_disp_error')
# checkpoint['best_t'] = t
# checkpoint['g_best_state'] = generator.state_dict()
# checkpoint['d_best_state'] = discriminator.state_dict()
# if metrics_val['ade_nl'] == min_ade_nl:
# logger.info('New low for avg_disp_error_nl')
# checkpoint['best_t_nl'] = t
# checkpoint['g_best_nl_state'] = generator.state_dict()
# checkpoint['d_best_nl_state'] = discriminator.state_dict()
if t % 50 == 0:
# save = False
# if t == 160:
# save = True
# print(t)
plot_trajectory(fig,
ax,
args,
val_loader,
generator,
teacher,
args.mode,
t,
save=True,
image_dir=image_dir)
# Maybe save a checkpoint
if t > 0 and t % args.checkpoint_every == 0:
print("Iteration: ", t)
checkpoint['counters']['t'] = t
checkpoint['counters']['epoch'] = epoch
checkpoint['sample_ts'].append(t)
# Save another checkpoint with model weights and
# optimizer state
checkpoint['g_state'] = generator.state_dict()
checkpoint['g_optim_state'] = optimizer_g.state_dict()
checkpoint['d_state'] = discriminator.state_dict()
checkpoint['d_optim_state'] = optimizer_d.state_dict()
checkpoint_path = os.path.join(
args.output_dir, '%s_with_model.pt' % args.checkpoint_name)
logger.info('Saving checkpoint to {}'.format(checkpoint_path))
torch.save(checkpoint, checkpoint_path)
logger.info('Done.')
# Save a checkpoint with no model weights by making a shallow
# copy of the checkpoint excluding some items
checkpoint_path = os.path.join(
args.output_dir, '%s_no_model.pt' % args.checkpoint_name)
logger.info('Saving checkpoint to {}'.format(checkpoint_path))
key_blacklist = [
'g_state', 'd_state', 'g_best_state', 'g_best_nl_state',
'g_optim_state', 'd_optim_state', 'd_best_state',
'd_best_nl_state'
]
small_checkpoint = {}
for k, v in checkpoint.items():
if k not in key_blacklist:
small_checkpoint[k] = v
torch.save(small_checkpoint, checkpoint_path)
logger.info('Done.')
t += 1
d_steps_left = args.d_steps
g_steps_left = args.g_steps
if t >= args.num_iterations:
break
