Class Index

All public types in the gempba namespace, grouped by role. abstract marks pure-virtual interfaces.

Class	Description
Interfaces
`load_balancer` abstract	Thread-level work distribution within a single process
`node_core` abstract	Base class for node implementations; handle type is `shared_ptr<node_core>`
`node_traits<T>` abstract	Full interface contract every node must satisfy; `T` is the handle type used for tree navigation
`scheduler_traits` abstract	Shared base for `scheduler` and its role views: state, counters, world layout
`scheduler` abstract	Process-level IPC coordination — transport-agnostic contract
`scheduler::center` abstract	Seeds the initial task and coordinates workers (rank 0)
`scheduler::worker` abstract	Explores the search tree and exchanges tasks with other processes (non-zero ranks)
`serial_runnable` abstract	Type erasure for functions that cross process boundaries
`serializable` abstract	Contract for objects that round-trip through a `task_packet`: `serialize()` / `deserialize()`
`stats` abstract	Runtime metrics collection for a single process
`stats_visitor` abstract	Format-agnostic readout of collected metrics
Concrete types
`node`	User-facing node handle — wraps `shared_ptr<node_core>`, cheap to copy
`node_manager`	Control panel — load balancer facade, thread pool config, result tracking
Built-in implementations
`default_mpi_stats`	Built-in `stats` implementation for the MPI schedulers
`default_mpi_stats_visitor`	Built-in `stats_visitor` — typed field access for MPI stats
`quasi_horizontal_load_balancer`	Distributes work near the root first; recommended for unbalanced trees
`work_stealing_load_balancer`	Naive FIFO thread scheduler — baseline / benchmarking only
`mpi_semi_centralized_scheduler`	Tasks travel point-to-point between workers; recommended for production
`mpi_centralized_scheduler`	All tasks route through the center — benchmarking only
Telemetry (see the Telemetry section)
`telemetry::telemetry_hub`	Process-wide telemetry hub: counters, probes, transport, and the dashboard server (center role)
`telemetry::worker_frame`, `node_frame`, `topology_snapshot`	The frame structs behind the live stream: per-worker counters, per-host stats, and the startup topology
C ABI
`gempba/cabi/gempba.h`	Stable `extern "C"` surface over the full runtime: opaque handles, status codes, callbacks. The Java binding is its first consumer
Utilities
`queue<T>`	Thread-safe FIFO queue used internally by load balancers
`result`	Found solution: best `score` plus serialized data as `task_packet`
`score`	17-byte type-erased numeric value for optimization goals; trivially copyable
`task_bundle`	IPC unit — `task_packet` plus integer routing ID
`task_packet`	Byte buffer (`vector<byte>`) for serialized arguments and results
`transmission_guard`	RAII lock for the outgoing IPC channel; released on destruction
`tree`	Index-based flat tree used for scheduler startup topology