Struct GridPos 

pub struct GridPos { /* private fields */ }

Context for grid position within a stencil kernel.

This is a marker type that gets translated to CUDA index calculations. In Rust, it provides the API; in generated CUDA, it becomes inline code.

Implementations

impl GridPos

pub fn idx(&self) -> usize

Get the current cell’s linear index.

In CUDA: idx

pub fn north<T: Copy>(&self, _buf: &[T]) -> T

Access the north neighbor (y - 1).

In CUDA: buf[idx - buffer_width]

pub fn south<T: Copy>(&self, _buf: &[T]) -> T

Access the south neighbor (y + 1).

In CUDA: buf[idx + buffer_width]

pub fn east<T: Copy>(&self, _buf: &[T]) -> T

Access the east neighbor (x + 1).

In CUDA: buf[idx + 1]

pub fn west<T: Copy>(&self, _buf: &[T]) -> T

Access the west neighbor (x - 1).

In CUDA: buf[idx - 1]

pub fn at<T: Copy>(&self, _buf: &[T], _dx: i32, _dy: i32) -> T

Access a neighbor at arbitrary offset.

In CUDA: buf[idx + dy * buffer_width + dx]

pub fn up<T: Copy>(&self, _buf: &[T]) -> T

Access the neighbor above (z - 1, 3D only).

In CUDA: buf[idx - buffer_slice]

pub fn down<T: Copy>(&self, _buf: &[T]) -> T

Access the neighbor below (z + 1, 3D only).

In CUDA: buf[idx + buffer_slice]

Trait Implementations

impl Clone for GridPos

fn clone(&self) -> GridPos

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GridPos

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

Formats the value using the given formatter.

impl Copy for GridPos