- unsigned num_threads; // number of worker threads to spawn (must be greater than 1 for any to be spawned)
- unsigned nested_threads; // number of threads to nest computations with (must be greater than 1 for any to be spawned)
- unsigned num_steps; // number of steps to run before stopping (run indefinately if equal to zero)
- unsigned timeout; // number of seconds to run before stopping (run indefinately if equal to zero)
+ int num_threads; // number of worker threads to spawn (must be greater than 1 for any to be spawned)
+ int nested_threads; // number of threads to nest computations with (must be greater than 1 for any to be spawned)
+ int num_steps; // number of steps to run before stopping (run indefinately if less than zero)
+ int timeout; // number of seconds to run before stopping (run indefinately if less than zero)