Struct MatrixDesc 

pub struct MatrixDesc<T: GpuFloat> {
    pub ptr: CUdeviceptr,
    pub rows: u32,
    pub cols: u32,
    pub ld: u32,
    pub layout: Layout,
    /* private fields */
}

Describes a matrix stored in device memory.

This is an immutable (read-only) view. For an output matrix that will be written to, use MatrixDescMut.

All fields are Copy-sized, so MatrixDesc itself is Copy.

Fields

ptr: CUdeviceptr

Device pointer to the matrix data.

rows: u32

Number of rows.

cols: u32

Number of columns.

ld: u32

Leading dimension (stride between rows/columns depending on layout).

layout: Layout

Memory layout.

Implementations

impl<T: GpuFloat> MatrixDesc<T>

pub fn from_buffer( buf: &DeviceBuffer<T>, rows: u32, cols: u32, layout: Layout, ) -> BlasResult<Self>

Create a matrix descriptor from a DeviceBuffer.

Returns an error if the buffer is too small for the requested dimensions.

pub fn from_raw( ptr: CUdeviceptr, rows: u32, cols: u32, ld: u32, layout: Layout, ) -> Self

Create with a raw device pointer (no size validation).

pub fn with_ld(self, ld: u32) -> Self

Override the leading dimension.

pub fn numel(&self) -> usize

Total number of elements.

pub fn storage_bytes(&self) -> usize

Storage bytes (full stride, including padding from leading dimension).

pub fn effective_dims(&self, trans: Transpose) -> (u32, u32)

Effective dimensions after transpose.

Trait Implementations

impl<T: Clone + GpuFloat> Clone for MatrixDesc<T>

fn clone(&self) -> MatrixDesc<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + GpuFloat> Debug for MatrixDesc<T>

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

Formats the value using the given formatter.

impl<T: Copy + GpuFloat> Copy for MatrixDesc<T>