Enum GridSpec 

pub enum GridSpec {
    Fixed(Dim3),
    DataDependent {
        param_index: u32,
    },
    ThreadDependent,
}

Specifies how child kernel grid dimensions are determined.

Device-side kernel launches can use fixed grid sizes, data-dependent sizes derived from kernel parameters, or per-thread launches.

Variants

Fixed(Dim3)

A constant grid size known at code generation time.

DataDependent

Grid size derived from a kernel parameter at runtime.

The param_index identifies which parameter of the parent kernel contains the element count. The generated PTX computes the grid size as ceil(param / block_size).

Fields

param_index: u32

Index of the parent kernel parameter holding the element count.

ThreadDependent

Launch one child kernel per thread in the parent kernel.

Each thread in the parent launches exactly one child grid. The child grid size is typically 1 block.

Trait Implementations

impl Clone for GridSpec

fn clone(&self) -> GridSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GridSpec

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

Formats the value using the given formatter.

impl Display for GridSpec

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

Formats the value using the given formatter.

impl PartialEq for GridSpec

fn eq(&self, other: &GridSpec) -> 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 Eq for GridSpec

impl StructuralPartialEq for GridSpec