Module child 

The per-trial child’s core: materialize → run oniro → read the objective.

This is the logic of the oniro-trial binary, factored into the library so the process-spawning glue is one small, reviewed function rather than inline main. It runs one oniro training per call — process-per-trial (04-rl-and-oniro.md §B.2: oniro seeds a process-global RNG) — by shelling out to the oniro_cli binary; it never links oniro.

The executor calls this once per replicate, each under replicate j’s common-random-numbers seed, which arrives as ChildInputs::seed and is written into the trial config’s run.seed.

Structs

ChildInputs

Everything the child needs to evaluate one trial replicate.

Functions

evaluate_child

Evaluates one trial replicate and returns its objective value.

evaluate_child_in_parent_group

Evaluates one executor-owned child while retaining the executor’s process group ownership for nested oniro_cli processes.

evaluate_child_with_runtime

Evaluates one trial replicate through a typed runtime.