Struct highs::Model

pub struct Model { /* fields omitted */ }

A model to solve

Implementations

impl Model

pub fn set_sense(&mut self, sense: Sense)

Set the optimization sense (minimize by default)

pub fn new<P: Into<Problem<ColMatrix>>>(problem: P) -> Self

Create a Highs model to be optimized (but don’t solve it yet). If the given problem is a RowProblem, it will have to be converted to a ColProblem first, which takes an amount of time proportional to the size of the problem.

pub fn make_quiet(&mut self)

Prevents writing anything to the standard output when solving the model

pub fn set_option<STR: Into<Vec<u8>>, V: HighsOptionValue>(
    &mut self,
    option: STR,
    value: V
)

Set a custom parameter on the model. For the list of available options and their documentation, see: https://www.maths.ed.ac.uk/hall/HiGHS/HighsOptions.html/

let mut model = ColProblem::default().optimise(Maximise);
model.set_option("presolve", "off"); // disable the presolver
model.set_option("solver", "ipm"); // use the ipm solver
model.set_option("time_limit", 30.0); // stop after 30 seconds
model.set_option("parallel", "on"); // use multiple cores
model.set_option("highs_min_threads", 4); // solve on 4 threads minimum

pub fn solve(self) -> SolvedModel

Find the optimal value for the problem

Trait Implementations

impl Debug for Model

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

Formats the value using the given formatter.

impl From<SolvedModel> for Model

fn from(solved: SolvedModel) -> Self

Performs the conversion.