Struct RankDomain 

pub struct RankDomain {
    pub rank: usize,
    pub n_ranks: usize,
    pub owned_box: DomainBox,
    pub ghost_layers: [usize; 6],
    pub owned_cells: [usize; 3],
    pub global_offset: [usize; 3],
}

Per-rank subdomain metadata for a domain-decomposed simulation.

Fields

rank: usize

MPI rank index (0-based).

n_ranks: usize

Total number of ranks in the communicator.

owned_box: DomainBox

Spatial bounding box of the owned (non-ghost) region.

ghost_layers: [usize; 6]

Number of ghost cell layers on each face [x-, x+, y-, y+, z-, z+].

owned_cells: [usize; 3]

Number of owned cells in each direction [nx, ny, nz].

global_offset: [usize; 3]

Global offset of this rank’s first cell [ox, oy, oz].

Implementations

impl RankDomain

pub fn new( rank: usize, n_ranks: usize, owned_box: DomainBox, ghost_layers: [usize; 6], owned_cells: [usize; 3], global_offset: [usize; 3], ) -> Self

Construct domain metadata for a single rank.

pub fn n_owned_cells(&self) -> usize

Total number of locally owned cells.

pub fn n_total_cells(&self) -> usize

Total cells including ghost layers (all six faces).

pub fn load_fraction(&self) -> f64

Fraction of the global workload assigned to this rank.

Assumes uniform distribution; override if load varies.

Trait Implementations

impl Clone for RankDomain

fn clone(&self) -> RankDomain

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RankDomain

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

Formats the value using the given formatter.