ClusterEnvironment¶

class pytorch_lightning.plugins.environments.ClusterEnvironment(*args: Any, **kwargs: Any)[source]¶

Specification of a cluster environment.

abstract static detect()[source]¶

Detects the environment settings corresponding to this cluster and returns True if they match.

abstract global_rank()[source]¶

The rank (index) of the currently running process across all nodes and devices.

abstract local_rank()[source]¶

The rank (index) of the currently running process inside of the current node.

abstract node_rank()[source]¶

The rank (index) of the node on which the current process runs.

Clean up any state set after execution finishes.

abstract world_size()[source]¶

The number of processes across all devices and nodes.

abstract property creates_processes_externally: bool¶

Whether the environment creates the subprocesses or not.

abstract property main_address: str¶

The main address through which all processes connect and communicate.

abstract property main_port: int¶

An open and configured port in the main node through which all processes communicate.