def main(args):
#global hl
if torch.cuda.is_available():
torch.cuda.set_device(args.device)
# environment setting
cae = cae_identity
mlp = MLP
cpp_propagator = _sst_module.SystemPropagator()
if args.env_type == 'pendulum':
normalize = pendulum.normalize
unnormalize = pendulum.unnormalize
system = standard_cpp_systems.PSOPTPendulum()
dynamics = None
enforce_bounds = None
step_sz = 0.002
num_steps = 20
elif args.env_type == 'cartpole':
normalize = cart_pole.normalize
unnormalize = cart_pole.unnormalize
dynamics = cartpole.dynamics
system = _sst_module.CartPole()
enforce_bounds = cartpole.enforce_bounds
step_sz = 0.002
num_steps = 20
elif args.env_type == 'cartpole_obs':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP
cae = CAE_cartpole_voxel_2d
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
pos_indices = [0, 2]
vel_indices = [1, 3]
elif args.env_type == 'cartpole_obs_2':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP2
cae = CAE_cartpole_voxel_2d
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
pos_indices = [0, 2]
vel_indices = [1, 3]
elif args.env_type == 'cartpole_obs_3':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP4
cae = CAE_cartpole_voxel_2d
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
pos_indices = [0, 2]
vel_indices = [1, 3]
elif args.env_type == 'cartpole_obs_4_small':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP3
cae = CAE_cartpole_voxel_2d
# dynamics: None -- without integration to dense trajectory
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
#dynamics = None
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
pos_indices = np.array([0, 2])
vel_indices = np.array([1, 3])
elif args.env_type == 'cartpole_obs_4_big':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP3
cae = CAE_cartpole_voxel_2d
# dynamics: None -- without integration to dense trajectory
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
#dynamics = None
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
pos_indices = np.array([0, 2])
vel_indices = np.array([1, 3])
elif args.env_type == 'cartpole_obs_4_small_x_theta':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP3
cae = CAE_cartpole_voxel_2d
# dynamics: None -- without integration to dense trajectory
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
#dynamics = None
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
pos_indices = np.array([0, 1])
vel_indices = np.array([2, 3])
elif args.env_type == 'cartpole_obs_4_big_x_theta':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP3
cae = CAE_cartpole_voxel_2d
# dynamics: None -- without integration to dense trajectory
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
#dynamics = None
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
pos_indices = np.array([0, 1])
vel_indices = np.array([2, 3])
elif args.env_type == 'cartpole_obs_4_small_decouple_output':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP3
cae = CAE_cartpole_voxel_2d
# dynamics: None -- without integration to dense trajectory
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
#dynamics = None
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
pos_indices = np.array([0, 2])
vel_indices = np.array([1, 3])
elif args.env_type == 'cartpole_obs_4_big_decouple_output':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP3
cae = CAE_cartpole_voxel_2d
# dynamics: None -- without integration to dense trajectory
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
#dynamics = None
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
pos_indices = np.array([0, 2])
vel_indices = np.array([1, 3])
elif args.env_type == 'acrobot_obs':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP
cae = CAE_acrobot_voxel_2d
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
pos_indices = [0, 1]
vel_indices = [2, 3]
elif args.env_type == 'acrobot_obs_2':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP2
cae = CAE_acrobot_voxel_2d_2
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
pos_indices = [0, 1]
vel_indices = [2, 3]
elif args.env_type == 'acrobot_obs_3':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP3
cae = CAE_acrobot_voxel_2d_2
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
pos_indices = [0, 1]
vel_indices = [2, 3]
elif args.env_type == 'acrobot_obs_4':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP3
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
pos_indices = [0, 1]
vel_indices = [2, 3]
elif args.env_type == 'acrobot_obs_5':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
pos_indices = [0, 1]
vel_indices = [2, 3]
elif args.env_type == 'acrobot_obs_6':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP4
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
pos_indices = [0, 1]
vel_indices = [2, 3]
elif args.env_type == 'acrobot_obs_7':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP5
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
elif args.env_type == 'acrobot_obs_8':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP6
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
# set loss for mpnet
if args.loss == 'mse':
#mpnet.loss_f = nn.MSELoss()
def mse_loss(y1, y2):
l = (y1 - y2) ** 2
l = torch.mean(l, dim=0) # sum alone the batch dimension, now the dimension is the same as input dimension
return l
loss_f_p = mse_loss
loss_f_v = mse_loss
elif args.loss == 'l1_smooth':
#mpnet.loss_f = nn.SmoothL1Loss()
def l1_smooth_loss(y1, y2):
l1 = torch.abs(y1 - y2)
cond = l1 < 1
l = torch.where(cond, 0.5 * l1 ** 2, l1)
l = torch.mean(l, dim=0) # sum alone the batch dimension, now the dimension is the same as input dimension
return l
loss_f_p = l1_smooth_loss
loss_f_v = l1_smooth_loss
elif args.loss == 'mse_decoupled':
def mse_decoupled(y1, y2):
# for angle terms, wrap it to -pi~pi
l_0 = torch.abs(y1[:,0] - y2[:,0]) ** 2
l_1 = torch.abs(y1[:,1] - y2[:,1]) ** 2
l_2 = torch.abs(y1[:,2] - y2[:,2]) # angular dimension
l_3 = torch.abs(y1[:,3] - y2[:,3]) ** 2
cond = (l_2 > 1.0) * (l_2 <= 2.0)
l_2 = torch.where(cond, 2*1.0-l_2, l_2)
l_2 = l_2 ** 2
l_0 = torch.mean(l_0)
l_1 = torch.mean(l_1)
l_2 = torch.mean(l_2)
l_3 = torch.mean(l_3)
return torch.stack([l_0, l_1, l_2, l_3])
loss_f_p = mse_decoupled
loss_f_v = mse_decoupled
elif args.loss == 'l1_smooth_decoupled':
# this only is for cartpole, need to adapt to other systems
#TODO
def l1_smooth_decoupled(y1, y2):
# for angle terms, wrap it to -pi~pi
l_0 = torch.abs(y1[:,0] - y2[:,0])
l_1 = torch.abs(y1[:,1] - y2[:,1]) # angular dimension
cond = (l_1 > 1.0) * (l_1 <= 2.0)
l_1 = torch.where(cond, 2*1.0-l_1, l_1)
# then change to l1_smooth_loss
cond = l_0 < 1
l_0 = torch.where(cond, 0.5 * l_0 ** 2, l_0)
cond = l_1 < 1
l_1 = torch.where(cond, 0.5 * l_1 ** 2, l_1)
l_0 = torch.mean(l_0)
l_1 = torch.mean(l_1)
return torch.stack([l_0, l_1])
def l1_smooth_loss(y1, y2):
l1 = torch.abs(y1 - y2)
cond = l1 < 1
l = torch.where(cond, 0.5 * l1 ** 2, l1)
l = torch.mean(l, dim=0) # sum alone the batch dimension, now the dimension is the same as input dimension
return l
loss_f_p = l1_smooth_decoupled
loss_f_v = l1_smooth_loss
if 'decouple_output' in args.env_type:
print('mpnet using decoupled output')
mpnet_pnet = KMPNet(args.total_input_size, args.AE_input_size, args.mlp_input_size, args.output_size//2,
cae, mlp, loss_f_p)
mpnet_vnet = KMPNet(args.total_input_size, args.AE_input_size, args.mlp_input_size, args.output_size//2,
cae, mlp, loss_f_v)
else:
mpnet_pnet = KMPNet(args.total_input_size//2, args.AE_input_size, args.mlp_input_size, args.output_size//2,
cae, mlp, loss_f_p)
mpnet_vnet = KMPNet(args.total_input_size//2, args.AE_input_size, args.mlp_input_size, args.output_size//2,
cae, mlp, loss_f_v)
# load net
# load previously trained model if start epoch > 0
model_dir = args.model_dir
if args.loss == 'mse':
if args.multigoal == 0:
model_dir = model_dir+args.env_type+"_lr%f_%s_step_%d/" % (args.learning_rate, args.opt, args.num_steps)
else:
model_dir = model_dir+args.env_type+"_lr%f_%s_step_%d_multigoal/" % (args.learning_rate, args.opt, args.num_steps)
else:
if args.multigoal == 0:
model_dir = model_dir+args.env_type+"_lr%f_%s_loss_%s_step_%d/" % (args.learning_rate, args.opt, args.loss, args.num_steps)
else:
model_dir = model_dir+args.env_type+"_lr%f_%s_loss_%s_step_%d_multigoal/" % (args.learning_rate, args.opt, args.loss, args.num_steps)
if not os.path.exists(model_dir):
os.makedirs(model_dir)
model_pnet_path='kmpnet_pnet_epoch_%d_direction_%d_step_%d.pkl' %(args.start_epoch, args.direction, args.num_steps)
model_vnet_path='kmpnet_vnet_epoch_%d_direction_%d_step_%d.pkl' %(args.start_epoch, args.direction, args.num_steps)
torch_seed, np_seed, py_seed = 0, 0, 0
if args.start_epoch > 0:
#load_net_state(mpnet, os.path.join(args.model_path, model_path))
load_net_state(mpnet_pnet, os.path.join(model_dir, model_pnet_path))
load_net_state(mpnet_vnet, os.path.join(model_dir, model_vnet_path))
#torch_seed, np_seed, py_seed = load_seed(os.path.join(args.model_path, model_path))
torch_seed, np_seed, py_seed = load_seed(os.path.join(model_dir, model_pnet_path))
# set seed after loading
torch.manual_seed(torch_seed)
np.random.seed(np_seed)
random.seed(py_seed)
if torch.cuda.is_available():
mpnet_pnet.cuda()
mpnet_pnet.mlp.cuda()
mpnet_pnet.encoder.cuda()
mpnet_vnet.cuda()
mpnet_vnet.mlp.cuda()
mpnet_vnet.encoder.cuda()
if args.opt == 'Adagrad':
mpnet_pnet.set_opt(torch.optim.Adagrad, lr=args.learning_rate)
elif args.opt == 'Adam':
mpnet_pnet.set_opt(torch.optim.Adam, lr=args.learning_rate)
elif args.opt == 'SGD':
mpnet_pnet.set_opt(torch.optim.SGD, lr=args.learning_rate, momentum=0.9)
elif args.opt == 'ASGD':
mpnet_pnet.set_opt(torch.optim.ASGD, lr=args.learning_rate)
if args.opt == 'Adagrad':
mpnet_vnet.set_opt(torch.optim.Adagrad, lr=args.learning_rate)
elif args.opt == 'Adam':
mpnet_vnet.set_opt(torch.optim.Adam, lr=args.learning_rate)
elif args.opt == 'SGD':
mpnet_vnet.set_opt(torch.optim.SGD, lr=args.learning_rate, momentum=0.9)
elif args.opt == 'ASGD':
mpnet_vnet.set_opt(torch.optim.ASGD, lr=args.learning_rate)
if args.start_epoch > 0:
#load_opt_state(mpnet, os.path.join(args.model_path, model_path))
load_opt_state(mpnet_pnet, os.path.join(model_dir, model_path))
load_opt_state(mpnet_vnet, os.path.join(model_dir, model_path))
# load train and test data
print('loading...')
obs, waypoint_dataset, waypoint_targets, env_indices, \
_, _, _, _ = data_loader.load_train_dataset(N=args.no_env, NP=args.no_motion_paths,
data_folder=args.path_folder, obs_f=True,
direction=args.direction,
dynamics=dynamics, enforce_bounds=enforce_bounds,
system=system, step_sz=step_sz,
num_steps=args.num_steps, multigoal=args.multigoal)
# randomize the dataset before training
data=list(zip(waypoint_dataset,waypoint_targets,env_indices))
random.shuffle(data)
dataset,targets,env_indices=list(zip(*data))
dataset = list(dataset)
dataset = np.array(dataset)
targets = np.array(targets)
print(np.concatenate([pos_indices, pos_indices+args.total_input_size//2]))
p_dataset = dataset[:, np.concatenate([pos_indices, pos_indices+args.total_input_size//2])]
v_dataset = dataset[:, np.concatenate([vel_indices, vel_indices+args.total_input_size//2])]
if 'decouple_output' in args.env_type:
# only decouple output
print('only decouple output but not input')
p_dataset = dataset
v_dataset = dataset
print(p_dataset.shape)
print(v_dataset.shape)
p_targets = targets[:,pos_indices]
v_targets = targets[:,vel_indices] # this is only for cartpole
# TODO: add string for choosing env
p_targets = list(p_targets)
v_targets = list(v_targets)
#targets = list(targets)
env_indices = list(env_indices)
dataset = np.array(dataset)
#targets = np.array(targets)
env_indices = np.array(env_indices)
# use 5% as validation dataset
val_len = int(len(dataset) * 0.05)
val_p_dataset = p_dataset[-val_len:]
val_v_dataset = v_dataset[-val_len:]
val_p_targets = p_targets[-val_len:]
val_v_targets = v_targets[-val_len:]
val_env_indices = env_indices[-val_len:]
p_dataset = p_dataset[:-val_len]
v_dataset = v_dataset[:-val_len]
p_targets = p_targets[:-val_len]
v_targets = v_targets[:-val_len]
env_indices = env_indices[:-val_len]
# Train the Models
print('training...')
if args.loss == 'mse':
if args.multigoal == 0:
writer_fname = 'pos_vel_%s_%f_%s_direction_%d_step_%d' % (args.env_type, args.learning_rate, args.opt, args.direction, args.num_steps, )
else:
writer_fname = 'pos_vel_%s_%f_%s_direction_%d_step_%d_multigoal' % (args.env_type, args.learning_rate, args.opt, args.direction, args.num_steps, )
else:
if args.multigoal == 0:
writer_fname = 'pos_vel_%s_%f_%s_direction_%d_step_%d_loss_%s' % (args.env_type, args.learning_rate, args.opt, args.direction, args.num_steps, args.loss, )
else:
writer_fname = 'pos_vel_%s_%f_%s_direction_%d_step_%d_loss_%s_multigoal' % (args.env_type, args.learning_rate, args.opt, args.direction, args.num_steps, args.loss, )
writer = SummaryWriter('./runs/'+writer_fname)
record_i = 0
val_record_i = 0
p_loss_avg_i = 0
p_val_loss_avg_i = 0
p_loss_avg = 0.
p_val_loss_avg = 0.
v_loss_avg_i = 0
v_val_loss_avg_i = 0
v_loss_avg = 0.
v_val_loss_avg = 0.
loss_steps = 100 # record every 100 loss
world_size = np.array(args.world_size)
pos_world_size = list(world_size[pos_indices])
vel_world_size = list(world_size[vel_indices])
for epoch in range(args.start_epoch+1,args.num_epochs+1):
print('epoch' + str(epoch))
val_i = 0
for i in range(0,len(p_dataset),args.batch_size):
print('epoch: %d, training... path: %d' % (epoch, i+1))
p_dataset_i = p_dataset[i:i+args.batch_size]
v_dataset_i = v_dataset[i:i+args.batch_size]
p_targets_i = p_targets[i:i+args.batch_size]
v_targets_i = v_targets[i:i+args.batch_size]
env_indices_i = env_indices[i:i+args.batch_size]
# record
p_bi = p_dataset_i.astype(np.float32)
v_bi = v_dataset_i.astype(np.float32)
print('p_bi shape:')
print(p_bi.shape)
print('v_bi shape:')
print(v_bi.shape)
p_bt = p_targets_i
v_bt = v_targets_i
p_bi = torch.FloatTensor(p_bi)
v_bi = torch.FloatTensor(v_bi)
p_bt = torch.FloatTensor(p_bt)
v_bt = torch.FloatTensor(v_bt)
# edit: disable this for investigation of the good weights for training, and for wrapping
if 'decouple_output' in args.env_type:
print('using normalizatino of decoupled output')
# only decouple output but not input
p_bi, v_bi, p_bt, v_bt = normalize(p_bi, args.world_size), normalize(v_bi, args.world_size), normalize(p_bt, pos_world_size), normalize(v_bt, vel_world_size)
else:
p_bi, v_bi, p_bt, v_bt = normalize(p_bi, pos_world_size), normalize(v_bi, vel_world_size), normalize(p_bt, pos_world_size), normalize(v_bt, vel_world_size)
mpnet_pnet.zero_grad()
mpnet_vnet.zero_grad()
p_bi=to_var(p_bi)
v_bi=to_var(v_bi)
p_bt=to_var(p_bt)
v_bt=to_var(v_bt)
if obs is None:
bobs = None
else:
bobs = obs[env_indices_i].astype(np.float32)
bobs = torch.FloatTensor(bobs)
bobs = to_var(bobs)
print('-------pnet-------')
print('before training losses:')
print(mpnet_pnet.loss(mpnet_pnet(p_bi, bobs), p_bt))
mpnet_pnet.step(p_bi, bobs, p_bt)
print('after training losses:')
print(mpnet_pnet.loss(mpnet_pnet(p_bi, bobs), p_bt))
p_loss = mpnet_pnet.loss(mpnet_pnet(p_bi, bobs), p_bt)
#update_line(hl, ax, [i//args.batch_size, loss.data.numpy()])
p_loss_avg += p_loss.cpu().data
p_loss_avg_i += 1
print('-------vnet-------')
print('before training losses:')
print(mpnet_vnet.loss(mpnet_vnet(v_bi, bobs), v_bt))
mpnet_vnet.step(v_bi, bobs, v_bt)
print('after training losses:')
print(mpnet_vnet.loss(mpnet_vnet(v_bi, bobs), v_bt))
v_loss = mpnet_vnet.loss(mpnet_vnet(v_bi, bobs), v_bt)
#update_line(hl, ax, [i//args.batch_size, loss.data.numpy()])
v_loss_avg += v_loss.cpu().data
v_loss_avg_i += 1
if p_loss_avg_i >= loss_steps:
p_loss_avg = p_loss_avg / p_loss_avg_i
writer.add_scalar('p_train_loss_0', p_loss_avg[0], record_i)
writer.add_scalar('p_train_loss_1', p_loss_avg[1], record_i)
v_loss_avg = v_loss_avg / v_loss_avg_i
writer.add_scalar('v_train_loss_0', v_loss_avg[0], record_i)
writer.add_scalar('v_train_loss_1', v_loss_avg[1], record_i)
record_i += 1
p_loss_avg = 0.
p_loss_avg_i = 0
v_loss_avg = 0.
v_loss_avg_i = 0
# validation
# calculate the corresponding batch in val_dataset
p_dataset_i = val_p_dataset[val_i:val_i+args.batch_size]
v_dataset_i = val_v_dataset[val_i:val_i+args.batch_size]
p_targets_i = val_p_targets[val_i:val_i+args.batch_size]
v_targets_i = val_v_targets[val_i:val_i+args.batch_size]
env_indices_i = val_env_indices[val_i:val_i+args.batch_size]
val_i = val_i + args.batch_size
if val_i > val_len:
val_i = 0
# record
p_bi = p_dataset_i.astype(np.float32)
v_bi = v_dataset_i.astype(np.float32)
print('p_bi shape:')
print(p_bi.shape)
print('v_bi shape:')
print(v_bi.shape)
p_bt = p_targets_i
v_bt = v_targets_i
p_bi = torch.FloatTensor(p_bi)
v_bi = torch.FloatTensor(v_bi)
p_bt = torch.FloatTensor(p_bt)
v_bt = torch.FloatTensor(v_bt)
if 'decouple_output' in args.env_type:
# only decouple output but not input
p_bi, v_bi, p_bt, v_bt = normalize(p_bi, args.world_size), normalize(v_bi, args.world_size), normalize(p_bt, pos_world_size), normalize(v_bt, vel_world_size)
else:
p_bi, v_bi, p_bt, v_bt = normalize(p_bi, pos_world_size), normalize(v_bi, vel_world_size), normalize(p_bt, pos_world_size), normalize(v_bt, vel_world_size)
p_bi=to_var(p_bi)
v_bi=to_var(v_bi)
p_bt=to_var(p_bt)
v_bt=to_var(v_bt)
if obs is None:
bobs = None
else:
bobs = obs[env_indices_i].astype(np.float32)
bobs = torch.FloatTensor(bobs)
bobs = to_var(bobs)
print('-------pnet loss--------')
p_loss = mpnet_pnet.loss(mpnet_pnet(p_bi, bobs), p_bt)
print('validation loss: ' % (p_loss.cpu().data))
p_val_loss_avg += p_loss.cpu().data
p_val_loss_avg_i += 1
print('-------vnet loss--------')
v_loss = mpnet_vnet.loss(mpnet_vnet(v_bi, bobs), v_bt)
print('validation loss: ' % (v_loss.cpu().data))
v_val_loss_avg += v_loss.cpu().data
v_val_loss_avg_i += 1
if p_val_loss_avg_i >= loss_steps:
p_val_loss_avg = p_val_loss_avg / p_val_loss_avg_i
writer.add_scalar('p_val_loss_0', p_val_loss_avg[0], val_record_i)
writer.add_scalar('p_val_loss_1', p_val_loss_avg[1], val_record_i)
v_val_loss_avg = v_val_loss_avg / v_val_loss_avg_i
writer.add_scalar('v_val_loss_0', v_val_loss_avg[0], val_record_i)
writer.add_scalar('v_val_loss_1', v_val_loss_avg[1], val_record_i)
val_record_i += 1
p_val_loss_avg = 0.
p_val_loss_avg_i = 0
v_val_loss_avg = 0.
v_val_loss_avg_i = 0
# Save the models
if epoch > 0 and epoch % 50 == 0:
model_pnet_path='kmpnet_pnet_epoch_%d_direction_%d_step_%d.pkl' %(epoch, args.direction, args.num_steps)
model_vnet_path='kmpnet_vnet_epoch_%d_direction_%d_step_%d.pkl' %(epoch, args.direction, args.num_steps)
#save_state(mpnet, torch_seed, np_seed, py_seed, os.path.join(args.model_path,model_path))
save_state(mpnet_pnet, torch_seed, np_seed, py_seed, os.path.join(model_dir,model_pnet_path))
save_state(mpnet_vnet, torch_seed, np_seed, py_seed, os.path.join(model_dir,model_vnet_path))
writer.export_scalars_to_json("./all_scalars.json")
writer.close()
def main(args):
#global hl
if torch.cuda.is_available():
torch.cuda.set_device(args.device)
# environment setting
multigoal = False
cpp_propagator = _sst_module.SystemPropagator()
if args.env_type == 'pendulum':
normalize = pendulum.normalize
unnormalize = pendulum.unnormalize
system = standard_cpp_systems.PSOPTPendulum()
dynamics = None
enforce_bounds = None
step_sz = 0.002
num_steps = 20
elif args.env_type == 'cartpole':
normalize = cart_pole.normalize
unnormalize = cart_pole.unnormalize
dynamics = cartpole.dynamics
system = _sst_module.CartPole()
enforce_bounds = cartpole.enforce_bounds
step_sz = 0.002
num_steps = 20
elif args.env_type == 'cartpole_obs':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.CartPole()
dynamics = cartpole.dynamics
enforce_bounds = cartpole.enforce_bounds
step_sz = 0.002
num_steps = 20
cae = cae_identity
mlp = MLP
elif args.env_type == 'cartpole_obs_4':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP3_no_dropout
cae = CAE_cartpole_voxel_2d
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
multigoal = False
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
elif args.env_type == 'cartpole_obs_4_multigoal':
normalize = cart_pole_obs.normalize
unnormalize = cart_pole_obs.unnormalize
system = _sst_module.PSOPTCartPole()
mlp = mlp_cartpole.MLP3_no_dropout
cae = CAE_cartpole_voxel_2d
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
#dynamics = None
multigoal = True
enforce_bounds = cart_pole_obs.enforce_bounds
step_sz = 0.002
num_steps = 20
elif args.env_type == 'acrobot_obs':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP
cae = CAE_acrobot_voxel_2d
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
elif args.env_type == 'acrobot_obs_2':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP2
cae = CAE_acrobot_voxel_2d_2
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
elif args.env_type == 'acrobot_obs_3':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP3
cae = CAE_acrobot_voxel_2d_2
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
elif args.env_type == 'acrobot_obs_4':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP3
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
elif args.env_type == 'acrobot_obs_5':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
elif args.env_type == 'acrobot_obs_6':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP4
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
elif args.env_type == 'acrobot_obs_7':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP5
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
elif args.env_type == 'acrobot_obs_8':
normalize = acrobot_obs.normalize
unnormalize = acrobot_obs.unnormalize
system = _sst_module.PSOPTAcrobot()
mlp = mlp_acrobot.MLP6
cae = CAE_acrobot_voxel_2d_3
#dynamics = acrobot_obs.dynamics
dynamics = lambda x, u, t: cpp_propagator.propagate(system, x, u, t)
enforce_bounds = acrobot_obs.enforce_bounds
step_sz = 0.02
num_steps = 20
# set loss for mpnet
if args.loss == 'mse':
#mpnet.loss_f = nn.MSELoss()
def mse_loss(y1, y2):
l = (y1 - y2)**2
l = torch.mean(
l, dim=0
) # sum alone the batch dimension, now the dimension is the same as input dimension
return l
loss_f = mse_loss
elif args.loss == 'l1_smooth':
#mpnet.loss_f = nn.SmoothL1Loss()
def l1_smooth_loss(y1, y2):
l1 = torch.abs(y1 - y2)
cond = l1 < 1
l = torch.where(cond, 0.5 * l1**2, l1)
l = torch.mean(
l, dim=0
) # sum alone the batch dimension, now the dimension is the same as input dimension
loss_f = l1_smooth_loss
elif args.loss == 'mse_decoupled':
def mse_decoupled(y1, y2):
# for angle terms, wrap it to -pi~pi
l_0 = torch.abs(y1[:, 0] - y2[:, 0])**2
l_1 = torch.abs(y1[:, 1] - y2[:, 1])**2
l_2 = torch.abs(y1[:, 2] - y2[:, 2]) # angular dimension
l_3 = torch.abs(y1[:, 3] - y2[:, 3])**2
cond = (l_2 > 1.0) * (l_2 <= 2.0
) # np.pi after normalization is 1.0
l_2 = torch.where(cond, 2.0 - l_2, l_2)
l_2 = l_2**2
l_0 = torch.mean(l_0)
l_1 = torch.mean(l_1)
l_2 = torch.mean(l_2)
l_3 = torch.mean(l_3)
return torch.stack([l_0, l_1, l_2, l_3])
loss_f = mse_decoupled
mpnet = KMPNet(args.total_input_size, args.AE_input_size,
args.mlp_input_size, args.output_size, cae, mlp, loss_f)
# load net
# load previously trained model if start epoch > 0
model_dir = args.model_dir
model_dir = model_dir + 'cost_' + args.env_type + "_lr%f_%s_step_%d/" % (
args.learning_rate, args.opt, args.num_steps)
if not os.path.exists(model_dir):
os.makedirs(model_dir)
model_path = 'cost_kmpnet_epoch_%d_direction_%d_step_%d.pkl' % (
args.start_epoch, args.direction, args.num_steps)
torch_seed, np_seed, py_seed = 0, 0, 0
if args.start_epoch > 0:
#load_net_state(mpnet, os.path.join(args.model_path, model_path))
load_net_state(mpnet, os.path.join(model_dir, model_path))
#torch_seed, np_seed, py_seed = load_seed(os.path.join(args.model_path, model_path))
torch_seed, np_seed, py_seed = load_seed(
os.path.join(model_dir, model_path))
# set seed after loading
torch.manual_seed(torch_seed)
np.random.seed(np_seed)
random.seed(py_seed)
if torch.cuda.is_available():
mpnet.cuda()
mpnet.mlp.cuda()
mpnet.encoder.cuda()
if args.opt == 'Adagrad':
mpnet.set_opt(torch.optim.Adagrad, lr=args.learning_rate)
elif args.opt == 'Adam':
mpnet.set_opt(torch.optim.Adam, lr=args.learning_rate)
elif args.opt == 'SGD':
mpnet.set_opt(torch.optim.SGD, lr=args.learning_rate, momentum=0.9)
elif args.opt == 'ASGD':
mpnet.set_opt(torch.optim.ASGD, lr=args.learning_rate)
if args.start_epoch > 0:
#load_opt_state(mpnet, os.path.join(args.model_path, model_path))
load_opt_state(mpnet, os.path.join(model_dir, model_path))
# load train and test data
print('loading...')
obs, cost_dataset, cost_targets, env_indices, \
_, _, _, _ = data_loader.load_train_dataset_cost(N=args.no_env, NP=args.no_motion_paths,
data_folder=args.path_folder, obs_f=True,
direction=args.direction,
dynamics=dynamics, enforce_bounds=enforce_bounds,
system=system, step_sz=step_sz, num_steps=args.num_steps,
multigoal=multigoal)
# randomize the dataset before training
data = list(zip(cost_dataset, cost_targets, env_indices))
random.shuffle(data)
dataset, targets, env_indices = list(zip(*data))
dataset = list(dataset)
targets = list(targets)
env_indices = list(env_indices)
dataset = np.array(dataset)
targets = np.array(targets)
env_indices = np.array(env_indices)
# use 5% as validation dataset
val_len = int(len(dataset) * 0.05)
val_dataset = dataset[-val_len:]
val_targets = targets[-val_len:]
val_env_indices = env_indices[-val_len:]
dataset = dataset[:-val_len]
targets = targets[:-val_len]
env_indices = env_indices[:-val_len]
# Train the Models
print('training...')
writer_fname = 'cost_%s_%f_%s_direction_%d_step_%d' % (
args.env_type, args.learning_rate, args.opt, args.direction,
args.num_steps)
writer = SummaryWriter('./runs/' + writer_fname)
record_i = 0
val_record_i = 0
loss_avg_i = 0
val_loss_avg_i = 0
loss_avg = 0.
val_loss_avg = 0.
loss_steps = 100 # record every 100 loss
for epoch in range(args.start_epoch + 1, args.num_epochs + 1):
print('epoch' + str(epoch))
val_i = 0
for i in range(0, len(dataset), args.batch_size):
print('epoch: %d, training... path: %d' % (epoch, i + 1))
dataset_i = dataset[i:i + args.batch_size]
targets_i = targets[i:i + args.batch_size]
env_indices_i = env_indices[i:i + args.batch_size]
# record
bi = dataset_i.astype(np.float32)
print('bi shape:')
print(bi.shape)
bt = targets_i
bi = torch.FloatTensor(bi)
bt = torch.FloatTensor(bt)
bi = normalize(bi, args.world_size)
mpnet.zero_grad()
bi = to_var(bi)
bt = to_var(bt)
if obs is None:
bobs = None
else:
bobs = obs[env_indices_i].astype(np.float32)
bobs = torch.FloatTensor(bobs)
bobs = to_var(bobs)
print('before training losses:')
print(mpnet.loss(mpnet(bi, bobs), bt))
mpnet.step(bi, bobs, bt)
print('after training losses:')
print(mpnet.loss(mpnet(bi, bobs), bt))
loss = mpnet.loss(mpnet(bi, bobs), bt)
#update_line(hl, ax, [i//args.batch_size, loss.data.numpy()])
loss_avg += loss.cpu().data
loss_avg_i += 1
if loss_avg_i >= loss_steps:
loss_avg = loss_avg / loss_avg_i
writer.add_scalar('train_loss', loss_avg, record_i)
record_i += 1
loss_avg = 0.
loss_avg_i = 0
# validation
# calculate the corresponding batch in val_dataset
dataset_i = val_dataset[val_i:val_i + args.batch_size]
targets_i = val_targets[val_i:val_i + args.batch_size]
env_indices_i = val_env_indices[val_i:val_i + args.batch_size]
val_i = val_i + args.batch_size
if val_i > val_len:
val_i = 0
# record
bi = dataset_i.astype(np.float32)
print('bi shape:')
print(bi.shape)
bt = targets_i
bi = torch.FloatTensor(bi)
bt = torch.FloatTensor(bt)
bi = normalize(bi, args.world_size)
bi = to_var(bi)
bt = to_var(bt)
if obs is None:
bobs = None
else:
bobs = obs[env_indices_i].astype(np.float32)
bobs = torch.FloatTensor(bobs)
bobs = to_var(bobs)
loss = mpnet.loss(mpnet(bi, bobs), bt)
print('validation loss: %f' % (loss.cpu().data))
val_loss_avg += loss.cpu().data
val_loss_avg_i += 1
if val_loss_avg_i >= loss_steps:
val_loss_avg = val_loss_avg / val_loss_avg_i
writer.add_scalar('val_loss', val_loss_avg, val_record_i)
val_record_i += 1
val_loss_avg = 0.
val_loss_avg_i = 0
# Save the models
if epoch > 0 and epoch % 50 == 0:
model_path = 'cost_kmpnet_epoch_%d_direction_%d_step_%d.pkl' % (
epoch, args.direction, args.num_steps)
#save_state(mpnet, torch_seed, np_seed, py_seed, os.path.join(args.model_path,model_path))
save_state(mpnet, torch_seed, np_seed, py_seed,
os.path.join(model_dir, model_path))
writer.export_scalars_to_json("./all_scalars.json")
writer.close()