Struct LinsolveOptions 

pub struct LinsolveOptions {
    pub nfullsweeps: usize,
    pub truncation: TruncationOptions,
    pub krylov_tol: f64,
    pub krylov_maxiter: usize,
    pub krylov_dim: usize,
    pub a0: f64,
    pub a1: f64,
    pub convergence_tol: Option<f64>,
}

Options for the linsolve algorithm.

Fields

nfullsweeps: usize

Number of full sweeps to perform.

A full sweep visits each edge twice (forward and backward) using an Euler tour.

truncation: TruncationOptions

Truncation options for factorization.

krylov_tol: f64

Tolerance for GMRES convergence.

krylov_maxiter: usize

Maximum GMRES iterations per local solve.

krylov_dim: usize

Krylov subspace dimension (restart parameter).

a0: f64

Coefficient a₀ in (a₀ + a₁ * A) * x = b.

a1: f64

Coefficient a₁ in (a₀ + a₁ * A) * x = b.

convergence_tol: Option<f64>

Convergence tolerance for early termination. If Some(tol), stop when relative residual < tol.

Implementations

impl LinsolveOptions

pub fn new(nfullsweeps: usize) -> Self

Create new options with specified number of full sweeps.

pub fn with_nfullsweeps(self, nfullsweeps: usize) -> Self

Set number of full sweeps.

pub fn with_truncation(self, truncation: TruncationOptions) -> Self

Set truncation options.

pub fn with_max_rank(self, max_rank: usize) -> Self

Set maximum bond dimension.

pub fn with_svd_policy(self, policy: SvdTruncationPolicy) -> Self

Set the SVD truncation policy used by TreeTN truncation steps.

pub fn with_krylov_tol(self, tol: f64) -> Self

Set GMRES tolerance.

pub fn with_krylov_maxiter(self, maxiter: usize) -> Self

Set maximum GMRES iterations.

pub fn with_krylov_dim(self, dim: usize) -> Self

Set Krylov subspace dimension.

pub fn with_coefficients(self, a0: f64, a1: f64) -> Self

Set coefficients a₀ and a₁.

pub fn with_convergence_tol(self, tol: f64) -> Self

Set convergence tolerance for early termination.

Trait Implementations

impl Clone for LinsolveOptions

fn clone(&self) -> LinsolveOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LinsolveOptions

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

Formats the value using the given formatter.

impl Default for LinsolveOptions

fn default() -> Self

Returns the “default value” for a type.