Skip to main content

RowBatch

Struct RowBatch 

Source
pub struct RowBatch {
    pub num_rows: usize,
    pub row_starts: Vec<i32>,
    pub col_indices: Vec<i32>,
    pub values: Vec<f64>,
    pub row_lower: Vec<f64>,
    pub row_upper: Vec<f64>,
}
Expand description

Batch of constraint rows for addition to a loaded LP, in CSR (row-major) form.

Assembled from the cut pool activity bitmap before each LP rebuild and passed to crate::SolverInterface::add_rows for a single batch call. Cuts are appended at the bottom of the constraint matrix in the dynamic constraint region per Solver Abstraction SS2.2.

See Solver Interface Trait SS4.5 and the cut pool assembly protocol in Solver Abstraction SS5.4.

Fields§

§num_rows: usize

Number of active constraint rows (cuts) in this batch.

§row_starts: Vec<i32>

CSR row start offsets (i32 for HiGHS FFI compatibility).

Length: num_rows + 1. Entry row_starts[i] is the index into col_indices and values where row i begins. row_starts[num_rows] equals the total number of non-zeros.

§col_indices: Vec<i32>

CSR column indices for each non-zero entry (i32 for HiGHS FFI compatibility).

Length: total non-zeros across all rows. Entry col_indices[k] is the column of the k-th non-zero value.

§values: Vec<f64>

CSR non-zero values.

Length: total non-zeros across all rows. Entry values[k] is the coefficient at column col_indices[k] in its row.

§row_lower: Vec<f64>

Row lower bounds (cut intercepts for cutting-plane cuts).

Length: num_rows. For >= cuts, this is the RHS lower bound.

§row_upper: Vec<f64>

Row upper bounds.

Length: num_rows. Use f64::INFINITY for >= cuts (cutting-plane cuts have no finite upper bound).

Trait Implementations§

Source§

impl Clone for RowBatch

Source§

fn clone(&self) -> RowBatch

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for RowBatch

Source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.