Struct grb::callback::MIPSolCtx

pub struct MIPSolCtx<'a>(_);

Callback context object during MIPSOL.

Implementations

impl<'a> MIPSolCtx<'a>

pub fn get_solution<I, V>(&self, vars: I) -> Result<Vec<f64>> where
    V: Borrow<Var>,
    I: IntoIterator<Item = V>, 

Retrieve the new (integer) solution values for the given variables. This will query the solution for ALL variables, and return the subset provided, so you should avoid calling this method multiple times per callback.

pub fn terminate(&self)

Signal Gurobi to terminate the optimisation. Will not take effect immediately

pub fn runtime(&self) -> Result<f64>

Retrieve the elapsed solver runtime in seconds.

pub fn add_lazy(&self, constr: IneqExpr) -> Result<()>

Add a new lazy constraint to the model

Important: Requires that the LazyConstraints parameter is set to 1

pub fn obj(&self) -> Result<f64>

Objective value for the new solution.

pub fn obj_best(&self) -> Result<f64>

Current best objective.

pub fn obj_bnd(&self) -> Result<f64>

Current best objective bound.

pub fn node_cnt(&self) -> Result<f64>

Current explored node count.

pub fn sol_cnt(&self) -> Result<i32>

Current count of feasible solutions found.