Struct GraphNode 

pub struct GraphNode {
    pub id: NodeId,
    pub kind: NodeKind,
    pub inputs: Vec<BufferId>,
    pub outputs: Vec<BufferId>,
    pub stream_hint: Option<StreamId>,
    pub cost_hint: u64,
    pub name: Option<String>,
}

A single node in the OxiCUDA computation graph.

Each node represents one GPU operation. Data-flow is captured through explicit inputs and outputs buffer lists: an output buffer of one node becomes an input buffer of its successors, forming the data dependency graph alongside the explicit control dependency edges stored in ComputeGraph.

Fields

id: NodeId

Unique identity within the graph.

kind: NodeKind

The GPU operation this node performs.

inputs: Vec<BufferId>

Buffers consumed by this operation (read-only or read-write).

outputs: Vec<BufferId>

Buffers produced or written by this operation.

stream_hint: Option<StreamId>

Preferred stream for this node (hint to the stream partitioner).

cost_hint: u64

Estimated compute cost in “abstract units” for scheduling heuristics.

name: Option<String>

Optional human-readable name for debugging and profiling.

Implementations

impl GraphNode

pub fn new(id: NodeId, kind: NodeKind) -> Self

Creates a new node with the given identity and operation kind.

pub fn with_inputs(self, inputs: impl IntoIterator<Item = BufferId>) -> Self

Attaches input buffer references to this node (builder pattern).

pub fn with_outputs(self, outputs: impl IntoIterator<Item = BufferId>) -> Self

Attaches output buffer references to this node (builder pattern).

pub fn with_stream(self, stream: StreamId) -> Self

Sets the preferred stream for this node (builder pattern).

pub fn with_cost(self, cost: u64) -> Self

Sets the cost hint for scheduling (builder pattern).

pub fn with_name(self, name: impl Into<String>) -> Self

Sets the display name for this node (builder pattern).

pub fn display_name(&self) -> String

Returns the node’s display name, falling back to its ID.

pub fn is_source(&self) -> bool

Returns true if this node has no input buffers (source node).

pub fn is_sink(&self) -> bool

Returns true if this node has no output buffers (sink node).

Trait Implementations

impl Clone for GraphNode

fn clone(&self) -> GraphNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GraphNode

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

Formats the value using the given formatter.

impl Display for GraphNode

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

Formats the value using the given formatter.