- concurrent(+MaxThreads, +Goals, +Options)
- Execute goals concurrently, using multiple threads
- concurrent_or(+MaxThreads, +Goals, +Options)
- Execute alternative goals concurrently, using multiple threads
- engines
- Print the currently known engines and their properties (to log_output)
- exit_all(+ExitCode)
- Post exit(ExitCode) requests to all engines (except self)