Struct LaunchGeometryLimits 

pub struct LaunchGeometryLimits {
    pub backend: &'static str,
    pub max_threads_per_block: u32,
    pub max_block_dim: [u32; 3],
    pub max_grid_dim: [u32; 3],
    pub max_threads_per_sm: u32,
}

Launch-geometry limits reported by a concrete driver.

Fields

backend: &'static str

Backend name used in diagnostics.

max_threads_per_block: u32

Maximum invocations in one workgroup or block.

max_block_dim: [u32; 3]

Maximum workgroup or block dimensions (x, y, z).

max_grid_dim: [u32; 3]

Maximum workgroup count per grid dimension.

max_threads_per_sm: u32

Maximum threads the device keeps resident on one compute unit (a CUDA streaming multiprocessor, a Metal threadgroup-hosting core, and so on), or 0 when the backend does not probe this number.

This is the budget that decides how many whole workgroups fit on one unit, and the division is integral: a workgroup width that does not divide it strands the remainder on every unit for the launch’s whole lifetime. Backends that leave this 0 opt out of every residency-aware decision rather than receiving one derived from a guessed budget.

Implementations

impl LaunchGeometryLimits

pub fn blocks_per_compute_unit(&self, workgroup_threads: u32) -> Option<u32>

Whole workgroups of workgroup_threads that stay resident on one compute unit, or None when this backend reports no per-unit budget.

pub fn resident_threads_per_compute_unit( &self, workgroup_threads: u32, ) -> Option<u32>

Threads that stay resident on one compute unit at workgroup_threads wide, or None when this backend reports no per-unit budget.

Trait Implementations

impl Clone for LaunchGeometryLimits

fn clone(&self) -> LaunchGeometryLimits

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LaunchGeometryLimits

impl Debug for LaunchGeometryLimits

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

Formats the value using the given formatter.

impl Eq for LaunchGeometryLimits

impl PartialEq for LaunchGeometryLimits

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LaunchGeometryLimits