Struct GepState 

pub struct GepState<B: Backend> { /* private fields */ }

Generation state for GepStrategy.

Fields are private so the host-side fitness cache cannot fall out of sync with the population from outside this module; build one with try_new and read it through the accessors.

Implementations

impl<B: Backend> GepState<B>

pub fn try_new( population: Tensor<B, 2, Int>, fitnesses: Vec<f32>, best_genome: Option<Tensor<B, 2, Int>>, best_fitness: f32, generation: usize, ) -> Result<Self, ConfigError>

Assembles a GEP state, checking the fitness cache matches the population.

Errors

Returns a ConfigError if population has zero rows or if fitnesses is non-empty with a length other than pop_size. The bootstrap state (empty fitnesses) is accepted.

pub fn population(&self) -> &Tensor<B, 2, Int>

Current population, shape (pop_size, genome_len).

pub fn fitnesses(&self) -> &[f32]

Host-side fitness cache (empty at bootstrap, else pop_size long).

pub fn best_genome(&self) -> Option<&Tensor<B, 2, Int>>

Best-so-far genome (shape (1, genome_len)), or None before the first tell.

pub fn best_fitness(&self) -> f32

Best-so-far (canonical, maximise) fitness.

pub fn generation(&self) -> usize

Generation counter.

Trait Implementations

impl<B: Clone + Backend> Clone for GepState<B>

fn clone(&self) -> GepState<B>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<B: Debug + Backend> Debug for GepState<B>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.