Struct vrp_core::solver::Builder

pub struct Builder { /* fields omitted */ }

Provides configurable way to build solver.

Methods

impl Builder

pub fn with_max_generations(self, limit: Option<usize>) -> Self

Sets max generations to be run. Default is 2000.

pub fn with_cost_variation(self, variation: Option<(usize, f64)>) -> Self

Sets cost variation termination criteria. Default is None.

pub fn with_max_time(self, limit: Option<usize>) -> Self

Sets max running time limit. Default is 300 seconds.

pub fn with_problem(self, problem: Arc<Problem>) -> Self

Sets problem.

pub fn with_initial_methods(
    self,
    initial_methods: Vec<(Box<dyn Recreate>, usize)>
) -> Self

Sets initial methods.

pub fn with_solutions(self, solutions: Vec<Arc<Solution>>) -> Self

Sets initial solutions. Default is none.

pub fn with_population_size(self, size: usize) -> Self

Sets population size. Default is 4.

pub fn with_offspring_size(self, size: usize) -> Self

Sets offspring size. Default is 4.

pub fn with_elite_size(self, size: usize) -> Self

Sets elite size. Default is 2.

pub fn with_initial_size(self, size: usize) -> Self

Sets initial population size. Each initial individual is constructed separately which used to take more time than normal refinement process. Default is 2.

pub fn build(self) -> Result<Solver, String>

Builds solver with parameters specified.

Trait Implementations

impl Default for Builder

fn default() -> Self

Returns the "default value" for a type.