Struct AmgConfig

Source

pub struct AmgConfig {Show 13 fields
    pub coarsening: AmgCoarsening,
    pub interpolation: AmgInterpolation,
    pub smoother: AmgSmoother,
    pub cycle: AmgCycle,
    pub strong_threshold: f64,
    pub max_levels: usize,
    pub coarse_size: usize,
    pub num_pre_smooth: usize,
    pub num_post_smooth: usize,
    pub jacobi_weight: f64,
    pub trunc_factor: f64,
    pub max_interp_elements: usize,
    pub aggressive_coarsening_levels: usize,
}

Expand description

Configuration for AMG preconditioner

Fields§

§coarsening: AmgCoarsening

Coarsening algorithm

§interpolation: AmgInterpolation

Interpolation operator type

§smoother: AmgSmoother

Smoother for pre- and post-relaxation

§cycle: AmgCycle

Cycle type (V, W, or F)

§strong_threshold: f64

Strong connection threshold (default: 0.25) Connections with |a_ij| >= θ * max_k |a_ik| are considered strong

§max_levels: usize

Maximum number of levels in the hierarchy

§coarse_size: usize

Coarsest level size - switch to direct solve below this

§num_pre_smooth: usize

Number of pre-smoothing sweeps (ν₁)

§num_post_smooth: usize

Number of post-smoothing sweeps (ν₂)

§jacobi_weight: f64

Jacobi damping parameter (ω)

§trunc_factor: f64

Truncation factor for interpolation (drop small weights)

§max_interp_elements: usize

Maximum interpolation stencil size per row

§aggressive_coarsening_levels: usize

Enable aggressive coarsening on first few levels

Implementations§

Source §

impl AmgConfig

Source

pub fn for_bem() -> AmgConfig

Configuration optimized for BEM systems

BEM matrices are typically denser and less sparse than FEM, requiring adjusted thresholds.

Source

pub fn for_fem() -> AmgConfig

Configuration optimized for FEM systems

Source

pub fn for_parallel() -> AmgConfig

Configuration optimized for maximum parallel scalability

Source

pub fn for_difficult_problems() -> AmgConfig

Configuration for difficult/ill-conditioned problems

Trait Implementations§

Source §

impl Clone for AmgConfig

Source §

fn clone(&self) -> AmgConfig

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

Source §

impl Debug for AmgConfig

Source §

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

Formats the value using the given formatter. Read more

Source §

impl Default for AmgConfig

Source §

fn default() -> AmgConfig

Returns the “default value” for a type. Read more

Auto Trait Implementations§

§

impl UnwindSafe for AmgConfig

Blanket Implementations§

Source §

impl<T> Any for T
where T: 'static + ?Sized,

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

Source §

impl<T> CloneToUninit for T
where T: Clone,

Source §

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

impl<T, U> Into for T
where U: From<T>,

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

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

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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

Source §