Struct GraphExec 

pub struct GraphExec { /* private fields */ }

An instantiated, executable graph.

Created by Graph::instantiate, a GraphExec holds a snapshot of the graph and a pre-computed execution order. On systems with a real CUDA driver, launching a GraphExec would call cuGraphLaunch.

On macOS (or any system without CUDA), launching returns CudaError::NotInitialized because the driver is not available.

Implementations

impl GraphExec

pub fn launch(&self, _stream: &Stream) -> CudaResult<()>

Launches the executable graph on the given stream.

On a real GPU, this would call cuGraphLaunch(hGraphExec, hStream), which submits the entire graph to the stream with minimal CPU overhead.

Errors

Returns CudaError::NotInitialized if the CUDA driver is not available (e.g. on macOS).

pub fn graph(&self) -> &Graph

Returns a reference to the underlying graph.

pub fn execution_order(&self) -> &[usize]

Returns the pre-computed execution order (topological sort).

pub fn node_count(&self) -> usize

Returns the total number of nodes that would be executed.

Trait Implementations

impl Debug for GraphExec

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

Formats the value using the given formatter.