Struct CommandQueueGroupTable 

pub struct CommandQueueGroupTable { /* private fields */ }

A queried command-queue-group property table for one device.

Intel GPUs expose a primary compute+copy group (ordinal 0) and, on discrete parts, dedicated copy-only “link” engines. Selecting the right ordinal lets copies overlap compute on a separate engine.

Implementations

impl CommandQueueGroupTable

pub fn new(groups: Vec<CommandQueueGroupInfo>) -> Self

Build a table from queue-group records.

pub fn groups(&self) -> &[CommandQueueGroupInfo]

All queue groups, in driver-reported order.

pub fn select_compute_ordinal(&self) -> LevelZeroResult<u32>

Select an ordinal that can run compute kernels (lowest ordinal first).

pub fn select_copy_ordinal(&self) -> LevelZeroResult<u32>

Select an ordinal for asynchronous copies.

Prefers a copy-only group (so it does not contend with compute); falls back to any copy-capable group. This is the basis for async copy queues discovered separately from compute queues.

pub fn has_dedicated_copy_engine(&self) -> bool

true when a dedicated copy-only engine exists (enabling overlap).

Trait Implementations

impl Clone for CommandQueueGroupTable

fn clone(&self) -> CommandQueueGroupTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CommandQueueGroupTable

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

Formats the value using the given formatter.

impl Default for CommandQueueGroupTable

fn default() -> CommandQueueGroupTable

Returns the “default value” for a type.