API Reference

GemPBA's public surface is intentionally small.

Facade and concrete types

	Purpose
gempba	The only header you need — facade, factory functions, global accessors
node_manager	Control panel: configure goal, submit work, wait, collect results
node	Concrete final class — user-facing handle to a branch in the recursion tree

Interfaces

Pluggable contracts. Implement one to replace a built-in component.

	Purpose
node_core	Abstract node — owns an instance, tracks tree position, manages lifecycle
node_traits	Full interface contract every node must satisfy
load_balancer	Thread-level work distribution within a process
scheduler	Process-level coordination — transport-agnostic IPC contract
serial_runnable	Type erasure for functions crossing process boundaries
stats	Runtime metrics collection
stats_visitor	Format-agnostic readout of collected metrics

Implementations

Built-in concrete implementations of the above interfaces.

	Interface	Notes
Quasi-Horizontal	load_balancer	Recommended thread scheduler
Work-Stealing	load_balancer	Benchmarking baseline
MPI Semi-Centralized	scheduler	Recommended process scheduler
MPI Centralized	scheduler	Benchmarking baseline
Stats	stats	Default stats for MPI schedulers
Stats Visitors	stats_visitor	Built-in metric formatters