pub struct LeaderState { /* private fields */ }Expand description
Leader coordination state - owns workers and routing logic.
LeaderState manages:
- Registration of workers during handshake phase
- Coordination with remote leaders for cross-leader transfers
- Routing strategies for asymmetric TP configurations
Implementations§
Source§impl LeaderState
impl LeaderState
Sourcepub fn new(instance_id: InstanceId, messenger: Arc<Messenger>) -> Self
pub fn new(instance_id: InstanceId, messenger: Arc<Messenger>) -> Self
Create a new LeaderState.
§Arguments
instance_id- This leader’s unique identifiernova- Nova runtime for RPC communication
Sourcepub fn instance_id(&self) -> InstanceId
pub fn instance_id(&self) -> InstanceId
Get this leader’s instance ID.
Sourcepub fn register_worker(
&mut self,
rank: usize,
host_instance: InstanceId,
worker: Box<dyn Worker>,
)
pub fn register_worker( &mut self, rank: usize, host_instance: InstanceId, worker: Box<dyn Worker>, )
Register a worker during the handshake phase.
Workers should be registered in rank order (0, 1, 2, …).
§Arguments
rank- The worker’s rank (0-indexed)host_instance- Instance ID of the process hosting this workerworker- The Worker implementation (DirectWorker or VeloWorkerClient)
Sourcepub fn worker_count(&self) -> usize
pub fn worker_count(&self) -> usize
Number of workers under this leader.
Sourcepub fn worker(&self, rank: usize) -> Option<&CoordinatedWorker>
pub fn worker(&self, rank: usize) -> Option<&CoordinatedWorker>
Get a worker by rank.
Sourcepub fn worker_mut(&mut self, rank: usize) -> Option<&mut CoordinatedWorker>
pub fn worker_mut(&mut self, rank: usize) -> Option<&mut CoordinatedWorker>
Get a mutable worker by rank.
Sourcepub fn workers(&self) -> impl Iterator<Item = &CoordinatedWorker>
pub fn workers(&self) -> impl Iterator<Item = &CoordinatedWorker>
Iterate over all workers.
Sourcepub async fn import_remote_leader(
&self,
remote_leader_id: InstanceId,
remote_metadata: Vec<SerializedLayout>,
) -> Result<()>
pub async fn import_remote_leader( &self, remote_leader_id: InstanceId, remote_metadata: Vec<SerializedLayout>, ) -> Result<()>
Connect to a remote leader and distribute its worker metadata to our workers.
This implements the routing strategy for cross-leader transfers:
- 1:1 mapping when TP sizes match
- Many-to-one when local TP > remote TP
- One-to-many when local TP < remote TP
§Arguments
remote_leader_id- Instance ID of the remote leaderremote_metadata- Metadata from each remote worker (rank-ordered)
Sourcepub async fn export_worker_metadata(&self) -> Result<Vec<SerializedLayout>>
pub async fn export_worker_metadata(&self) -> Result<Vec<SerializedLayout>>
Export this leader’s workers’ metadata for another leader to import.
Returns metadata from each worker in rank order.
Sourcepub fn has_remote_leader(&self, remote_leader_id: InstanceId) -> bool
pub fn has_remote_leader(&self, remote_leader_id: InstanceId) -> bool
Check if we have imported metadata from a remote leader.
Sourcepub fn remote_leader_info(
&self,
remote_leader_id: InstanceId,
) -> Option<RemoteLeaderInfo>
pub fn remote_leader_info( &self, remote_leader_id: InstanceId, ) -> Option<RemoteLeaderInfo>
Get info about a remote leader if known.
Auto Trait Implementations§
impl !Freeze for LeaderState
impl !RefUnwindSafe for LeaderState
impl !UnwindSafe for LeaderState
impl Send for LeaderState
impl Sync for LeaderState
impl Unpin for LeaderState
impl UnsafeUnpin for LeaderState
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