Struct MatrixExpPlan 

pub struct MatrixExpPlan { /* private fields */ }

Execution plan for the matrix exponential.

The plan pre-computes the Padé coefficients and kernel names, then generates PTX on demand.

Implementations

impl MatrixExpPlan

pub fn new(config: MatrixExpConfig) -> SolverResult<Self>

Creates a plan from a validated configuration.

pub fn pade_coefficients(&self) -> &[f64]

Returns the Padé coefficients used by this plan.

pub fn theta(&self) -> f64

Returns the theta threshold for the configured Padé order.

pub fn generate_ptx(&self) -> SolverResult<String>

Generates PTX source for the matrix exponential kernels.

The generated code contains multiple entry points:

1. scale kernel — computes A_scaled = A / 2^s where s is chosen so that ||A_scaled|| <= theta.
2. Padé numerator/denominator kernels — evaluates the Padé polynomial pair P(A) and Q(A) using Horner’s method.
3. squaring kernel — repeated squaring F = F^{2^s} via matrix multiply.

Trait Implementations

impl Clone for MatrixExpPlan

fn clone(&self) -> MatrixExpPlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MatrixExpPlan

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

Formats the value using the given formatter.