revive.computation

class revive.computation.inference.VirtualEnv(env_list: List[VirtualEnvDev])

Bases: object

to(device)

Move model to the device specified by the parameter.

Examples:

>>> venv_model.to("cpu")
>>> venv_model.to("cuda")
>>> venv_model.to("cuda:1")

check_version()

Check if the revive version of the saved model and the current revive version match.

reset() → None

When using RNN for model training, this method needs to be called before model reuse to reset the hidden layer information.

set_env(env_id) → None

property target_policy_name: str

Get the target policy name.

set_target_policy_name(target_policy_name) → None

Set the target policy name.

replace_policy(policy: PolicyModel) → None

Replace the target policy with the given policy.

infer_k_steps(states: Union[Dict[str, ndarray], List[Dict[str, ndarray]]], k: Optional[int] = None, deterministic: bool = True, clip: bool = True) → List[Dict[str, ndarray]]

Generate k steps interactive data.

Args:

states

a dict of initial input nodes

k

how many steps to generate

deterministic

if True, the most likely actions are generated; if False, actions are generated by sample. Default: True

Return:

k steps interactive data dict

Examples:

>>> state = {"obs": obs_array, "static_obs": static_obs_array}
>>> ten_step_output = venv_model.infer_k_steps(state, k=10)

infer_one_step(state: Dict[str, ndarray], deterministic: bool = True, clip: bool = True) → Dict[str, ndarray]

Generate one step interactive data given action.

Args:

state

a dict of input nodes

deterministic

if True, the most likely actions are generated; if False, actions are generated by sample. Default: True

Return:

one step outputs

Examples:

>>> state = {"obs": obs_array, "static_obs": static_obs_array}
>>> one_step_output = venv_model.infer_one_step(state)

node_pre_computation(node_name: str, node_data: ndarray)

node_post_computation(node_name: str, node_data: ndarray)

node_infer(node_name: str, state: Dict[str, ndarray], deterministic: bool = True, clip: bool = True) → Dict[str, ndarray]

Generate one step interactive data given node_name.

Args:

state

a dict of input nodes

deterministic

if True, the most likely actions are generated; if False, actions are generated by sample. Default: True

Return:

one step node output

Examples:

>>> state = {"obs": obs_array, "static_obs": static_obs_array}
>>> action_output = venv_model.node_infer("action", state)

node_dist(node_name: str, state: Dict[str, ndarray]) → Dict[str, ndarray]

Generate one step interactive dist given node_name.

Args:

state

a dict of input nodes

deterministic

if True, the most likely actions are generated; if False, actions are generated by sample. Default: True

Return:

one step node output

Examples:

>>> state = {"obs": obs_array, "static_obs": static_obs_array}
>>> action_output = venv_model.node_infer("action", state)

export2onnx(onnx_file: str, verbose: bool = True)

Exporting the model to onnx mode.

Reference: https://pytorch.org/docs/stable/onnx.html

Args:

onnx_file

the onnx model file save path.

verbose

if True, prints a description of the model being exported to stdout. In addition, the final ONNX graph will include the field doc_string` from the exported model which mentions the source code locations for model.

class revive.computation.inference.PolicyModel(policy_model_dev: PolicyModelDev, post_process: Optional[Callable[[Dict[str, ndarray], ndarray], ndarray]] = None)

Bases: object

to(device: str)

Move model to the device specified by the parameter.

Examples:

>>> policy_model.to("cpu")
>>> policy_model.to("cuda")
>>> policy_model.to("cuda:1")

check_version()

Check if the revive version of the saved model and the current revive version match.

reset()

When using RNN for model training, this method needs to be called before model reuse to reset the hidden layer information.

property target_policy_name: None

Get the target policy name.

infer(state: Dict[str, ndarray], deterministic: bool = True, clip: bool = True, additional_info: Optional[Dict[str, ndarray]] = None) → ndarray

Generate action according policy.

Args:

state

a dict contain ALL the input nodes of the policy node

deterministic

if True, the most likely actions are generated; if False, actions are generated by sample. Default: True

clip

if True, The output will be cropped to the range set in the yaml file; if False, actions are generated by sample. Default: True

additional_info

a dict of additional info for post process

Return:

action

Examples:

>>> state = {"obs": obs_array, "static_obs": static_obs_array}
>>> action = policy_model.infer(state)

export2onnx(onnx_file: str, verbose: bool = True)

Exporting the model to onnx mode.

Reference: https://pytorch.org/docs/stable/onnx.html

Args:

onnx_file

the onnx model file save path.

verbose

if True, prints a description of the model being exported to stdout. In addition, the final ONNX graph will include the field doc_string` from the exported model which mentions the source code locations for model.