Struct FrontFactors

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pub struct FrontFactors { /* private fields */ }

Expand description

Per-supernode factorization result.

Stores the L11, D11, and L21 blocks extracted from the factored frontal matrix, along with permutation and index information needed by the triangular solve.

§Invariants

l11.nrows() == l11.ncols() == num_eliminated
d11.dimension() == num_eliminated
l21.ncols() == num_eliminated
l21.nrows() == row_indices.len()
col_indices.len() == num_eliminated

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impl FrontFactors

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pub fn l11(&self) -> &Mat<f64>

Unit lower triangular factor L11 (ne × ne).

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pub fn d11(&self) -> &MixedDiagonal

Block diagonal D11 with mixed 1x1/2x2 pivots.

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pub fn l21(&self) -> &Mat<f64>

Subdiagonal factor block L21 (r × ne).

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pub fn local_perm(&self) -> &[usize]

APTP local pivot permutation within this front.

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pub fn num_eliminated(&self) -> usize

Number of successfully eliminated columns.

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pub fn col_indices(&self) -> &[usize]

Global permuted column indices for eliminated columns.

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pub fn row_indices(&self) -> &[usize]

Global permuted row indices for L21 rows.

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impl Debug for FrontFactors

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for FrontFactors

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impl<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> ByRef<T> for T

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fn by_ref(&self) -> &T

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impl<T> DistributionExt for T
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fn from(t: T) -> T

Returns the argument unchanged.

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Calls U::from(self).

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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