GenericOverride substitutes any quantities in new that are non-zero for those in *old (which must be a pointer).

LogWorkers dumps the number of workers configured by nworkers to the logger l.

BatchSet contains the tunable quantities for either a batch compiler or a batch runner.

FuzzSet represents the part of a configuration that holds various tunable parameters for the fuzzer.

MachineSet contains overridable quantities for each stage operating on a particular machine.

MachNodeSet contains the tunable quantities for both batch-compiler and batch-runner.

PerturbSet contains configurable quantities for the perturber.

PlanSet contains configurable quantities for the planner.

RootSet is the top-level set of tunable quantities for a director.

Timeout is a Duration with the semantics of non-positive values being an absence of timeout.