Struct SolveResidual 

pub struct SolveResidual {
    lu: Lu,
    value: DMatrix<Complex>,
}

What solve saves for its derivatives: the LU factors and the solution. Both derivative directions solve with the same factors.

Fields

lu: Lu

value: DMatrix<Complex>

Implementations

impl SolveResidual

pub fn state_size(n: usize, rhs: usize) -> Result<usize>

Byte count for the native saved state of an n × rhs solution.

impl SolveResidual

pub const fn value(&self) -> &DMatrix<Complex>

The solution X of A X = B, one column per right-hand side, which the pullback reads.

pub fn shape(&self) -> (usize, usize)

The shape of the solution: unknowns and right-hand sides.

pub fn pushforward( &self, operator: &DMatrix<Complex>, rhs: DMatrix<Complex>, ) -> Result<DMatrix<Complex>>

Solve A dX = dB - dA X, reusing the forward LU and the tangent RHS buffer.

pub(crate) fn adjoint_rhs( &self, cotangent: DMatrix<Complex>, ) -> Result<DMatrix<Complex>>

pub fn pullback(&self, cotangent: DMatrix<Complex>) -> Result<SolveGradient>

Return operator and right-hand-side cotangents, reusing the forward LU.

Trait Implementations

impl Clone for SolveResidual

fn clone(&self) -> SolveResidual

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SolveResidual

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

Formats the value using the given formatter.

impl SavedState for SolveResidual

fn save_state(&self) -> Result<Vec<u8>>

Copy the saved numerical state into its fixed byte layout.

fn from_state(bytes: &[u8]) -> Result<Self>

Restore numerical state from bytes produced by this extension.