Enum SpMatFormat 

pub enum SpMatFormat {
    Csr,
    Ell,
    Hyb,
    Csr5,
}

Sparse matrix format selected by the simple heuristic.

This complements RecommendedFormat (which analyses a live GPU matrix) by providing a lightweight, testable pure-function selector that takes pre-computed statistics as inputs.

Variants

Csr

General Compressed Sparse Row. Best default for very sparse matrices (avg_nnz_per_row ≤ 2).

Ell

ELLPACK. Best for matrices with regular row lengths and moderate fill (2 < avg_nnz_per_row ≤ 32).

Hyb

Hybrid ELL+COO. Best for matrices with irregular sparsity patterns that do not fit CSR5 criteria.

Csr5

CSR5 load-balanced format. Best for large matrices with high average fill (avg_nnz_per_row > 128 and n_rows >= 1024).

Trait Implementations

impl Clone for SpMatFormat

fn clone(&self) -> SpMatFormat

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpMatFormat

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

Formats the value using the given formatter.

impl Hash for SpMatFormat

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for SpMatFormat

fn eq(&self, other: &SpMatFormat) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for SpMatFormat

impl Eq for SpMatFormat

impl StructuralPartialEq for SpMatFormat