Struct CompressionPlan 

pub struct CompressionPlan { /* private fields */ }

A validated, granularity-aligned plan for a compressed allocation.

Records the logically requested size and the physically reserved size (rounded up to the compression granularity). The physical footprint is the number of bytes that cuMemCreate would reserve; the effective footprint after compression depends on the data and is modelled separately by CompressedDeviceBuffer.

Implementations

impl CompressionPlan

pub fn new( requested_bytes: usize, support: CompressionSupport, ) -> CudaResult<Self>

Builds a compression plan for requested_bytes against support.

Errors

• CudaError::InvalidValue if requested_bytes is zero or rounding to the granularity overflows.
• CudaError::NotSupported if support reports that the device does not support generic compression.

pub fn requested_bytes(&self) -> usize

The number of bytes the caller asked for.

pub fn physical_bytes(&self) -> usize

The number of physical bytes reserved (granularity-aligned).

pub fn granularity(&self) -> usize

The granularity this plan was aligned to.

pub fn padding_bytes(&self) -> usize

The padding bytes added by granularity rounding (physical - requested).

Trait Implementations

impl Clone for CompressionPlan

fn clone(&self) -> CompressionPlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CompressionPlan

impl Debug for CompressionPlan

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

Formats the value using the given formatter.

impl Eq for CompressionPlan

impl PartialEq for CompressionPlan

fn eq(&self, other: &CompressionPlan) -> 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 StructuralPartialEq for CompressionPlan