Module graph 

CUDA Graphs (Runtime API).

Two construction paths match the Driver-side API:

1. Stream capture (Stream::begin_capture, Stream::end_capture) — run your work on a stream; CUDA records it into a graph instead of executing. This is the usual path for applications.
2. Explicit construction (Graph::new) — empty graph, add nodes by hand via the runtime’s cudaGraphAdd*Node functions (baracuda-runtime doesn’t expose typed builders for those yet — use stream capture, or drop down to the raw PFNs).

Either way, Graph::instantiate compiles to GraphExec, and GraphExec::launch runs it on any stream.

Structs

Graph

A CUDA graph — DAG of operations, replayable via Graph::instantiate.

GraphExec

An instantiated (executable) CUDA graph.

GraphNode

A node inside a Graph. Lightweight Copy handle that borrows the parent graph’s storage.

UpdateResult

Outcome of GraphExec::update. result is a cudaGraphExecUpdateResult code — SUCCESS (0) means the executable graph was patched in place.

Enums

CaptureMode

Stream-capture mode (matches cudaStreamCaptureMode).