def training_pipeline(cls, **kwargs):
ppo_steps = int(1e6)
lr = 2.5e-4
num_mini_batch = 2 if not torch.cuda.is_available() else 6
update_repeats = 4
num_steps = 128
metric_accumulate_interval = cls.MAX_STEPS * 10 # Log every 10 max length tasks
save_interval = 10000
gamma = 0.99
use_gae = True
gae_lambda = 1.0
max_grad_norm = 0.5
return TrainingPipeline(
save_interval=save_interval,
metric_accumulate_interval=metric_accumulate_interval,
optimizer_builder=Builder(optim.Adam, dict(lr=lr)),
num_mini_batch=num_mini_batch,
update_repeats=update_repeats,
max_grad_norm=max_grad_norm,
num_steps=num_steps,
named_losses={
"ppo_loss": PPO(clip_decay=LinearDecay(ppo_steps), **PPOConfig),
},
gamma=gamma,
use_gae=use_gae,
gae_lambda=gae_lambda,
advance_scene_rollout_period=cls.ADVANCE_SCENE_ROLLOUT_PERIOD,
pipeline_stages=[
PipelineStage(loss_names=["ppo_loss"], max_stage_steps=ppo_steps,),
],
lr_scheduler_builder=Builder(
LambdaLR, {"lr_lambda": LinearDecay(steps=ppo_steps)}
),
)
def training_pipeline(cls, **kwargs) -> TrainingPipeline:
ppo_steps = int(150000)
return TrainingPipeline(
named_losses=dict(
imitation_loss=Imitation(
cls.SENSORS[1]
), # 0 is Minigrid, 1 is ExpertActionSensor
ppo_loss=PPO(**PPOConfig, entropy_method_name="conditional_entropy"),
), # type:ignore
pipeline_stages=[
PipelineStage(
teacher_forcing=LinearDecay(
startp=1.0, endp=0.0, steps=ppo_steps // 2,
),
loss_names=["imitation_loss", "ppo_loss"],
max_stage_steps=ppo_steps,
)
],
optimizer_builder=Builder(cast(optim.Optimizer, optim.Adam), dict(lr=1e-4)),
num_mini_batch=4,
update_repeats=3,
max_grad_norm=0.5,
num_steps=16,
gamma=0.99,
use_gae=True,
gae_lambda=0.95,
advance_scene_rollout_period=None,
save_interval=10000,
metric_accumulate_interval=1,
lr_scheduler_builder=Builder(
LambdaLR, {"lr_lambda": LinearDecay(steps=ppo_steps)} # type:ignore
),
)
def lr_scheduler(small_batch_steps, transition_steps, ppo_steps,
lr_scaling):
safe_small_batch_steps = int(small_batch_steps * 1.02)
large_batch_and_lr_steps = ppo_steps - safe_small_batch_steps - transition_steps
# Learning rate after small batch steps (assuming decay to 0)
break1 = 1.0 - safe_small_batch_steps / ppo_steps
# Initial learning rate for large batch (after transition from initial to large learning rate)
break2 = lr_scaling * (
1.0 - (safe_small_batch_steps + transition_steps) / ppo_steps)
return MultiLinearDecay([
# Base learning rate phase for small batch (with linear decay towards 0)
LinearDecay(
steps=safe_small_batch_steps,
startp=1.0,
endp=break1,
),
# Allow the optimizer to adapt its statistics to the changes with a larger learning rate
LinearDecay(
steps=transition_steps,
startp=break1,
endp=break2,
),
# Scaled learning rate phase for large batch (with linear decay towards 0)
LinearDecay(
steps=large_batch_and_lr_steps,
startp=break2,
endp=0,
),
])
def training_pipeline(self, **kwargs):
training_steps = int(300000000)
tf_steps = int(5e6)
anneal_steps = int(5e6)
il_no_tf_steps = training_steps - tf_steps - anneal_steps
assert il_no_tf_steps > 0
lr = 3e-4
num_mini_batch = 2 if torch.cuda.is_available() else 1
update_repeats = 4
num_steps = 30
save_interval = 5000000
log_interval = 10000 if torch.cuda.is_available() else 1
gamma = 0.99
use_gae = True
gae_lambda = 0.95
max_grad_norm = 0.5
return TrainingPipeline(
save_interval=save_interval,
metric_accumulate_interval=log_interval,
optimizer_builder=Builder(optim.Adam, dict(lr=lr)),
num_mini_batch=num_mini_batch,
update_repeats=update_repeats,
max_grad_norm=max_grad_norm,
num_steps=num_steps,
named_losses={
"imitation_loss": Imitation(),
},
gamma=gamma,
use_gae=use_gae,
gae_lambda=gae_lambda,
advance_scene_rollout_period=self.ADVANCE_SCENE_ROLLOUT_PERIOD,
pipeline_stages=[
PipelineStage(
loss_names=["imitation_loss"],
max_stage_steps=tf_steps,
teacher_forcing=LinearDecay(
startp=1.0,
endp=1.0,
steps=tf_steps,
),
),
PipelineStage(
loss_names=["imitation_loss"],
max_stage_steps=anneal_steps + il_no_tf_steps,
teacher_forcing=LinearDecay(
startp=1.0,
endp=0.0,
steps=anneal_steps,
),
),
],
lr_scheduler_builder=Builder(
LambdaLR,
{"lr_lambda": LinearDecay(steps=training_steps)},
),
)
def rl_loss_default(cls, alg: str, steps: Optional[int] = None):
if alg == "ppo":
assert steps is not None
return {
"loss":
Builder(
PPO,
kwargs={"clip_decay": LinearDecay(steps)},
default=PPOConfig,
),
"num_mini_batch":
cls.PPO_NUM_MINI_BATCH,
"update_repeats":
4,
}
elif alg == "a2c":
return {
"loss": A2C(**A2CConfig),
"num_mini_batch": 1,
"update_repeats": 1,
}
elif alg == "imitation":
return {
"loss": Imitation(),
"num_mini_batch": cls.PPO_NUM_MINI_BATCH,
"update_repeats": 4,
}
else:
raise NotImplementedError
def training_pipeline(cls, **kwargs) -> TrainingPipeline:
ppo_steps = int(1.2e6)
return TrainingPipeline(
named_losses=dict(ppo_loss=PPO(
clip_param=0.2,
value_loss_coef=0.5,
entropy_coef=0.0,
), ), # type:ignore
pipeline_stages=[
PipelineStage(loss_names=["ppo_loss"],
max_stage_steps=ppo_steps),
],
optimizer_builder=Builder(cast(optim.Optimizer, optim.Adam),
dict(lr=1e-3)),
num_mini_batch=1,
update_repeats=80,
max_grad_norm=100,
num_steps=2000,
gamma=0.99,
use_gae=False,
gae_lambda=0.95,
advance_scene_rollout_period=None,
save_interval=200000,
metric_accumulate_interval=50000,
lr_scheduler_builder=Builder(
LambdaLR,
{"lr_lambda": LinearDecay(steps=ppo_steps)}, # type:ignore
),
)
def _training_pipeline_info(cls) -> Dict[str, Any]:
"""Define how the model trains."""
training_steps = cls.TRAINING_STEPS
il_params = cls._use_label_to_get_training_params()
bc_tf1_steps = il_params["bc_tf1_steps"]
dagger_steps = il_params["dagger_steps"]
return dict(
named_losses=dict(
walkthrough_ppo_loss=MaskedPPO(
mask_uuid="in_walkthrough_phase",
ppo_params=dict(
clip_decay=LinearDecay(training_steps), **PPOConfig
),
),
imitation_loss=Imitation(),
),
pipeline_stages=[
PipelineStage(
loss_names=["walkthrough_ppo_loss", "imitation_loss"],
max_stage_steps=training_steps,
teacher_forcing=StepwiseLinearDecay(
cumm_steps_and_values=[
(bc_tf1_steps, 1.0),
(bc_tf1_steps + dagger_steps, 0.0),
]
),
)
],
**il_params,
)
def training_pipeline(cls, **kwargs) -> TrainingPipeline:
ppo_steps = int(150000)
return TrainingPipeline(
named_losses=dict(ppo_loss=PPO(**PPOConfig)), # type:ignore
pipeline_stages=[
PipelineStage(loss_names=["ppo_loss"],
max_stage_steps=ppo_steps)
],
optimizer_builder=Builder(cast(optim.Optimizer, optim.Adam),
dict(lr=1e-4)),
num_mini_batch=4,
update_repeats=3,
max_grad_norm=0.5,
num_steps=16,
gamma=0.99,
use_gae=True,
gae_lambda=0.95,
advance_scene_rollout_period=None,
save_interval=10000,
metric_accumulate_interval=1,
lr_scheduler_builder=Builder(
LambdaLR,
{"lr_lambda": LinearDecay(steps=ppo_steps)} # type:ignore
),
)
def _training_pipeline_info(cls, **kwargs) -> Dict[str, Any]:
"""Define how the model trains."""
training_steps = cls.TRAINING_STEPS
return dict(
named_losses=dict(
ppo_loss=PPO(clip_decay=LinearDecay(training_steps), **PPOConfig),
binned_map_loss=BinnedPointCloudMapLoss(
binned_pc_uuid="binned_pc_map",
map_logits_uuid="ego_height_binned_map_logits",
),
semantic_map_loss=SemanticMapFocalLoss(
semantic_map_uuid="semantic_map",
map_logits_uuid="ego_semantic_map_logits",
),
),
pipeline_stages=[
PipelineStage(
loss_names=["ppo_loss", "binned_map_loss", "semantic_map_loss"],
loss_weights=[1.0, 1.0, 100.0],
max_stage_steps=training_steps,
)
],
num_steps=32,
num_mini_batch=1,
update_repeats=3,
use_lr_decay=True,
lr=3e-4,
)
def training_pipeline(cls, **kwargs):
total_train_steps = cls.TOTAL_IL_TRAIN_STEPS
ppo_info = cls.rl_loss_default("ppo", steps=-1)
imitation_info = cls.rl_loss_default("imitation")
return cls._training_pipeline(
named_losses={
"imitation_loss": imitation_info["loss"],
},
pipeline_stages=[
PipelineStage(
loss_names=["imitation_loss"],
teacher_forcing=LinearDecay(
startp=1.0,
endp=1.0,
steps=total_train_steps,
),
max_stage_steps=total_train_steps,
),
],
num_mini_batch=min(info["num_mini_batch"]
for info in [ppo_info, imitation_info]),
update_repeats=min(info["update_repeats"]
for info in [ppo_info, imitation_info]),
total_train_steps=total_train_steps,
)
def training_pipeline(cls, **kwargs):
ppo_steps = int(250000000)
lr = 3e-4
num_mini_batch = 1
update_repeats = 3
num_steps = 30
save_interval = 5000000
log_interval = 1000
gamma = 0.99
use_gae = True
gae_lambda = 0.95
max_grad_norm = 0.5
return TrainingPipeline(
save_interval=save_interval,
metric_accumulate_interval=log_interval,
optimizer_builder=Builder(optim.Adam, dict(lr=lr)),
num_mini_batch=num_mini_batch,
update_repeats=update_repeats,
max_grad_norm=max_grad_norm,
num_steps=num_steps,
named_losses={"ppo_loss": PPO(**PPOConfig)},
gamma=gamma,
use_gae=use_gae,
gae_lambda=gae_lambda,
advance_scene_rollout_period=cls.ADVANCE_SCENE_ROLLOUT_PERIOD,
pipeline_stages=[
PipelineStage(loss_names=["ppo_loss"],
max_stage_steps=ppo_steps)
],
lr_scheduler_builder=Builder(
LambdaLR, {"lr_lambda": LinearDecay(steps=ppo_steps)}),
)
def get_lr_scheduler_builder(cls, use_lr_decay: bool):
return (None if not use_lr_decay else Builder(
LambdaLR,
{
"lr_lambda":
LinearDecay(
steps=cls.TRAINING_STEPS // 3, startp=1.0, endp=1.0 / 3)
},
))
def training_pipeline(cls, **kwargs):
ppo_steps = int(75000000)
lr = 3e-4
num_mini_batch = 1
update_repeats = 4
num_steps = 128
save_interval = 5000000
log_interval = 10000 if torch.cuda.is_available() else 1
gamma = 0.99
use_gae = True
gae_lambda = 0.95
max_grad_norm = 0.5
action_strs = PointNavTask.class_action_names()
non_end_action_inds_set = {
i
for i, a in enumerate(action_strs) if a != robothor_constants.END
}
end_action_ind_set = {action_strs.index(robothor_constants.END)}
return TrainingPipeline(
save_interval=save_interval,
metric_accumulate_interval=log_interval,
optimizer_builder=Builder(optim.Adam, dict(lr=lr)),
num_mini_batch=num_mini_batch,
update_repeats=update_repeats,
max_grad_norm=max_grad_norm,
num_steps=num_steps,
named_losses={
"ppo_loss":
PPO(**PPOConfig),
"grouped_action_imitation":
GroupedActionImitation(
nactions=len(PointNavTask.class_action_names()),
action_groups=[
non_end_action_inds_set, end_action_ind_set
],
),
},
gamma=gamma,
use_gae=use_gae,
gae_lambda=gae_lambda,
advance_scene_rollout_period=cls.ADVANCE_SCENE_ROLLOUT_PERIOD,
pipeline_stages=[
PipelineStage(
loss_names=["ppo_loss", "grouped_action_imitation"],
max_stage_steps=ppo_steps,
)
],
lr_scheduler_builder=Builder(
LambdaLR, {"lr_lambda": LinearDecay(steps=ppo_steps)}),
)
def training_pipeline(cls, **kwargs):
ppo_steps = int(10000000)
lr = 3e-4
num_mini_batch = 1
update_repeats = 3
num_steps = 30
save_interval = 1000000
log_interval = 100
gamma = 0.99
use_gae = True
gae_lambda = 0.95
max_grad_norm = 0.5
return TrainingPipeline(
save_interval=save_interval,
metric_accumulate_interval=log_interval,
optimizer_builder=Builder(optim.Adam, dict(lr=lr)),
num_mini_batch=num_mini_batch,
update_repeats=update_repeats,
max_grad_norm=max_grad_norm,
num_steps=num_steps,
named_losses={
"ppo_loss":
PPO(**PPOConfig),
"nie_loss":
NIE_Reg(
agent_pose_uuid="agent_pose_global",
pose_uuid="object_pose_global",
local_keypoints_uuid="3Dkeypoints_local",
global_keypoints_uuid="3Dkeypoints_global",
obj_update_mask_uuid="object_update_mask",
obj_action_mask_uuid="object_action_mask",
),
"yn_im_loss":
YesNoImitation(yes_action_index=ObjectPlacementTask.
class_action_names().index(END)),
},
gamma=gamma,
use_gae=use_gae,
gae_lambda=gae_lambda,
advance_scene_rollout_period=cls.ADVANCE_SCENE_ROLLOUT_PERIOD,
pipeline_stages=[
PipelineStage(
loss_names=["ppo_loss", "nie_loss", "yn_im_loss"],
max_stage_steps=ppo_steps)
],
lr_scheduler_builder=Builder(
LambdaLR, {"lr_lambda": LinearDecay(steps=ppo_steps)}),
)
def _training_pipeline_info(cls, **kwargs) -> Dict[str, Any]:
"""Define how the model trains."""
training_steps = cls.TRAINING_STEPS
return dict(
named_losses=dict(
ppo_loss=PPO(clip_decay=LinearDecay(training_steps), **PPOConfig)
),
pipeline_stages=[
PipelineStage(loss_names=["ppo_loss"], max_stage_steps=training_steps,)
],
num_steps=64,
num_mini_batch=1,
update_repeats=3,
use_lr_decay=True,
lr=3e-4,
)
def training_pipeline(cls, **kwargs):
total_train_steps = cls.TOTAL_IL_TRAIN_STEPS
loss_info = cls.rl_loss_default("imitation")
return cls._training_pipeline(
named_losses={"imitation_loss": loss_info["loss"]},
pipeline_stages=[
PipelineStage(
loss_names=["imitation_loss"],
teacher_forcing=LinearDecay(
startp=1.0, endp=0.0, steps=total_train_steps // 2,
),
max_stage_steps=total_train_steps,
)
],
num_mini_batch=loss_info["num_mini_batch"],
update_repeats=loss_info["update_repeats"],
total_train_steps=total_train_steps,
)
def training_pipeline(cls, **kwargs) -> TrainingPipeline:
lr = 1e-4
ppo_steps = int(8e7) # convergence may be after 1e8
clip_param = 0.1
value_loss_coef = 0.5
entropy_coef = 0.0
num_mini_batch = 4 # optimal 64
update_repeats = 10
max_grad_norm = 0.5
num_steps = 2048
gamma = 0.99
use_gae = True
gae_lambda = 0.95
advance_scene_rollout_period = None
save_interval = 200000
metric_accumulate_interval = 50000
return TrainingPipeline(
named_losses=dict(ppo_loss=PPO(
clip_param=clip_param,
value_loss_coef=value_loss_coef,
entropy_coef=entropy_coef,
), ), # type:ignore
pipeline_stages=[
PipelineStage(loss_names=["ppo_loss"],
max_stage_steps=ppo_steps),
],
optimizer_builder=Builder(cast(optim.Optimizer, optim.Adam),
dict(lr=lr)),
num_mini_batch=num_mini_batch,
update_repeats=update_repeats,
max_grad_norm=max_grad_norm,
num_steps=num_steps,
gamma=gamma,
use_gae=use_gae,
gae_lambda=gae_lambda,
advance_scene_rollout_period=advance_scene_rollout_period,
save_interval=save_interval,
metric_accumulate_interval=metric_accumulate_interval,
lr_scheduler_builder=Builder(
LambdaLR,
{"lr_lambda": LinearDecay(steps=ppo_steps, startp=1, endp=1)
}, # constant learning rate
),
)
def _training_pipeline(
cls,
named_losses: Dict[str, Union[Loss, Builder]],
pipeline_stages: List[PipelineStage],
num_mini_batch: int,
update_repeats: int,
total_train_steps: int,
lr: Optional[float] = None,
):
lr = cls.DEFAULT_LR if lr is None else lr
num_steps = cls.ROLLOUT_STEPS
metric_accumulate_interval = (cls.METRIC_ACCUMULATE_INTERVAL()
) # Log every 10 max length tasks
save_interval = int(cls.TOTAL_RL_TRAIN_STEPS / cls.NUM_CKPTS_TO_SAVE)
gamma = 0.99
use_gae = "reinforce_loss" not in named_losses
gae_lambda = 0.99
max_grad_norm = 0.5
return TrainingPipeline(
save_interval=save_interval,
metric_accumulate_interval=metric_accumulate_interval,
optimizer_builder=Builder(cast(optim.Optimizer, optim.Adam),
dict(lr=lr)),
num_mini_batch=num_mini_batch,
update_repeats=update_repeats,
max_grad_norm=max_grad_norm,
num_steps=num_steps,
named_losses=named_losses,
gamma=gamma,
use_gae=use_gae,
gae_lambda=gae_lambda,
advance_scene_rollout_period=None,
should_log=cls.SHOULD_LOG,
pipeline_stages=pipeline_stages,
lr_scheduler_builder=Builder(
LambdaLR,
{"lr_lambda": LinearDecay(steps=cls.TOTAL_RL_TRAIN_STEPS)
} # type: ignore
),
)
def training_pipeline(self, **kwargs):
# PPO
ppo_steps = int(75000000)
lr = 3e-4
num_mini_batch = 1
update_repeats = 4
num_steps = 128
save_interval = 5000000
log_interval = 10000 if torch.cuda.is_available() else 1
gamma = 0.99
use_gae = True
gae_lambda = 0.95
max_grad_norm = 0.5
PPOConfig["normalize_advantage"] = self.NORMALIZE_ADVANTAGE
named_losses = {"ppo_loss": (PPO(**PPOConfig), 1.0)}
named_losses = self._update_with_auxiliary_losses(named_losses)
return TrainingPipeline(
save_interval=save_interval,
metric_accumulate_interval=log_interval,
optimizer_builder=Builder(optim.Adam, dict(lr=lr)),
num_mini_batch=num_mini_batch,
update_repeats=update_repeats,
max_grad_norm=max_grad_norm,
num_steps=num_steps,
named_losses={key: val[0]
for key, val in named_losses.items()},
gamma=gamma,
use_gae=use_gae,
gae_lambda=gae_lambda,
advance_scene_rollout_period=self.ADVANCE_SCENE_ROLLOUT_PERIOD,
pipeline_stages=[
PipelineStage(
loss_names=list(named_losses.keys()),
max_stage_steps=ppo_steps,
loss_weights=[val[1] for val in named_losses.values()],
)
],
lr_scheduler_builder=Builder(
LambdaLR, {"lr_lambda": LinearDecay(steps=ppo_steps)}),
)